MAX4122/4 MAX4122/3/6/7/9 MAX4124/5/8 MAX4123/5/7 MAX4122EUK MAX4123C/D - Datasheet Archive

 

Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply Rail-to-Rail I/O Op Amps _Selection Table _Features o 5-Pin SOT23-5

 

19-1087; Rev 0; 8/96 Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply Rail-to-Rail I/O Op Amps _Selection Table _Features o 5-Pin SOT23-5 Package (MAX4122/4 MAX4122/4) o +2.7V to +6.5V Single-Supply Operation o Rail-to-Rail Input Common-Mode Voltage Range o Rail-to-Rail Output Voltage Swing o 5MHz Gain-Bandwidth Product (MAX4122/3/6/7/9 MAX4122/3/6/7/9) 25MHz Gain-Bandwidth Product (MAX4124/5/8 MAX4124/5/8) o 650µA Quiescent Current per Amplifier o Optional Shutdown Function (MAX4123/5/7 MAX4123/5/7) o 200µV Offset Voltage o No Phase Reversal for Overdriven Inputs o Drive 250 Loads o Stable with 500pF Capacitive Loads o Unity-Gain Stable (MAX4122/3/6/7/9 MAX4122/3/6/7/9) Stable at Gains 10V/V (MAX4124/5/8 MAX4124/5/8) _Ordering Information PART TEMP. RANGE MAX4122EUK MAX4122EUK -40°C to +85°C PINPACKAGE 5 SOT23-5 MARKING INFO. AAAZ SHUTDOWN MODE PINPACKAGE 1 - 5 SOT23-5 MAX4123C/D MAX4123C/D - 0°C to +70°C Dice* - MAX4123ESA MAX4123ESA -40°C to +85°C 8 SO MAX4123EUA MAX4123EUA -40°C to +85°C 8 µMAX - Ordering Information continued at end of data sheet. *Dice are specified at TA = +25°C, DC parameters only. 1 Yes 8 SO/µMAX Pin Configurations appear at end of data sheet. 25 1 - 5 SOT23-5 MAX4125 MAX4125 25 1 Yes 8 SO/µMAX MAX4126 MAX4126 5 2 - 8 SO/µMAX MAX4127 MAX4127 5 2 Yes MAX4128 MAX4128 25 2 - 8 SO/µMAX MAX4129 MAX4129 5 4 - 14 SO PART BW (MHz) AMPS/ PKG. MAX4122 MAX4122 5 MAX4123 MAX4123 5 MAX4124 MAX4124 _Typical Operating Circuit +5V 14 SO MAX187 MAX187 3 6 _Applications Battery-Powered Instruments Portable Equipment Data-Acquisition Systems Signal Conditioning Low-Power, Low-Voltage Applications SERIAL INTERFACE 8 7 SHDN VDD DOUT AIN SCLK VREF CS GND 1 2 MAX4123 MAX4123 4 5 _ Maxim Integrated Products 1 For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800 MAX4122 MAX4122­MAX4129 MAX4129 _General Description The MAX4122 MAX4122­MAX4129 MAX4129 family of operational amplifiers combines wide bandwidth and excellent DC accuracy with rail-to-rail operation at the inputs and outputs. These devices require only 650µA per amplifier, and operate from either a single supply (+2.7V to +6.5V) or dual supplies (±1.35V to ±3.25V) with a common-mode voltage range that extends beyond VEE and VCC. They are capable of driving 250 loads. The MAX4122/ MAX4122/ MAX4123/MAX4126/MAX4127/MAX4129 MAX4123/MAX4126/MAX4127/MAX4129 have a 5MHz gain bandwidth product, while the decompensated MAX4124/MAX4125/MAX4128 MAX4124/MAX4125/MAX4128 (stable at closed-looped gains of 10 or greater) have a 25MHz gain bandwidth product. In addition, the MAX4123/MAX4125/MAX4127 MAX4123/MAX4125/MAX4127 feature a shutdown mode in which the outputs are in a high-impedance state and the supply current is reduced to only 25µA per amplifier. With their rail-to-rail input common-mode range and output swing, these amplifiers are ideal for low-voltage single-supply operation. Although the minimum operating voltage is specified at 2.7V, the devices typically operate down to 1.8V. In addition, low offset voltage and high speed make them the ideal signal-conditioning stages for precision, low-voltage data-acquisition systems. The MAX4122 MAX4122 and MAX4124 MAX4124 come in the space-saving 5-pin SOT23-5 package. MAX4122 MAX4122­MAX4129 MAX4129 Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply Rail-to-Rail I/O Op Amps ABSOLUTE MAXIMUM RATINGS Supply Voltage (VCC-VEE).7.5V IN+, IN-, SHDN Voltage .(VCC + 0.3V) to (VEE - 0.3V) Output Short-Circuit Duration (Note 1).Continuous (short to either supply) Continuous Power Dissipation (TA = +70°C) 5-pin SOT23-5 (derate 7.1mW/°C above +70°C) .571mW 8-pin SO (derate 5.88mW/°C above +70°C).471mW 8-pin µMAX (derate 4.10mW/°C above +70°C) .330mW 14-pin SO (derate 8.00mW/°C above +70°C).640mW Operating Temperature Range MAX412 MAX412_E_ .-40°C to +85°C Maximum Junction Temperature .+150°C Storage Temperature Range .-65°C to +160°C Lead Temperature (soldering, 10sec) .+300°C Note 1: Provided that the maximum package power-dissipation rating is met. Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. DC ELECTRICAL CHARACTERISTICS (VCC = +2.7V to +6.5V, VEE = 0V, VCM = 0V, VOUT = VCC / 2, RL tied to VCC / 2, SHDN 2V (or open), TA = +25°C, unless otherwise noted.) PARAMETER MAX ±0.20 ±0.60 MAX4122EUK/MAX4124EUK MAX4122EUK/MAX4124EUK ±0.35 ±1.00 MAX4123EUA/MAX4125EUA MAX4123EUA/MAX4125EUA ±0.35 ±1.20 MAX4126ESA/MAX4127ESD/MAX4128ESA MAX4126ESA/MAX4127ESD/MAX4128ESA ±0.25 ±0.75 MAX4126EUA/MAX4128EUA MAX4126EUA/MAX4128EUA ±0.40 ±1.50 MAX4129ESD MAX4129ESD Input Offset Voltage CONDITIONS VCM = VEE to VCC TYP MAX4123ESA/MAX4125ESA MAX4123ESA/MAX4125ESA MIN ±0.35 ±1.50 Input Bias Current VCM = VEE to VCC ±50 ±150 Input Offset Current VCM = VEE to VCC ±1 ±12 Differential Input Resistance -1.5V < VDIFF < 1.5V 500 Common-Mode Input Voltage Range VEE 0.25 68 88 MAX4126ESA/MAX4127ESD/MAX4128ESA MAX4126ESA/MAX4127ESD/MAX4128ESA 74 94 MAX4126EUA/MAX4128EUA MAX4126EUA/MAX4128EUA 66 84 78 100 Power-Supply Rejection Ratio VCC = 2.7V to 6.5V Output Resistance AV = 1 Off-Leakage Current SHDN < 0.8V, VOUT = 0V to VCC VCC = 2.7V Large-Signal Voltage Gain VCC = 5V 2 V 86 64 nA 90 MAX4123EUA/MAX4125EUA MAX4123EUA/MAX4125EUA nA 98 70 MAX4129ESD MAX4129ESD Common-Mode Rejection Ratio 78 MAX4122EUK/MAX4124EUK MAX4122EUK/MAX4124EUK mV k VCC + 0.25 MAX4123ESA/MAX4125ESA MAX4123ESA/MAX4125ESA (VEE 0.25) < VCM < (VCC + 0.25V) UNITS dB dB 0.1 ±0.1 VOUT = 0.25V to 2.45V, RL = 100k 92 VOUT = 0.4V to 2.3V, RL = 250 72 80 VOUT = 0.25V to 4.75V, RL = 100k 94 106 VOUT = 0.4V to 4.6V, RL = 250 75 84 ±1 µA 104 _ dB Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply Rail-to-Rail I/O Op Amps (VCC = +2.7V to +6.5V, VEE = 0V, VCM = 0V, VOUT = VCC / 2, RL tied to VCC / 2, SHDN 2V (or open), TA = +25°C, unless otherwise noted.) PARAMETER CONDITIONS MAX4122/ MAX4122/ MAX4123/ MAX4123/ MAX4124/ MAX4124/ MAX4125 MAX4125 RL = 100k RL = 250 Output Voltage Swing MAX4126/ MAX4126/ MAX4127/ MAX4127/ MAX4128/ MAX4128/ MAX4129 MAX4129 RL = 100k RL = 250 MIN TYP MAX 12 VCC - VOH 20 VOL - VEE 20 35 VCC - VOH 240 290 VOL - VEE 125 170 VCC - VOH 15 30 VOL - VEE 25 280 330 VOL - VEE 180 230 50 MAX4123/MAX4125/MAX4127 MAX4123/MAX4125/MAX4127 SHDN Input Current Low 2.0 ±1 Shutdown Supply Current per Amplifier SHDN > 0.8V, MAX4123/MAX4125/MAX4127 MAX4123/MAX4125/MAX4127 V ±3 µA 6.5 2.7 VCM = VOUT = VCC / 2 mA 0.8 MAX4123/MAX4125/MAX4127 MAX4123/MAX4125/MAX4127 High Operating Supply-Voltage Range Supply Current per Amplifier mV 40 VCC - VOH Output Short-Circuit Current SHDN Logic Threshold UNITS V VCC = 2.7V 650 750 VCC = 5V 725 825 VCC = 2.7V 25 40 VCC = 5V 40 60 µA µA DC ELECTRICAL CHARACTERISTICS (VCC = +2.7V to +6.5V, VEE = 0V, VCM = 0V, VOUT = VCC / 2, RL tied to VCC / 2, SHDN 2V (or open), TA = -40°C to +85°C, unless otherwise noted.) PARAMETER CONDITIONS MIN TYP MAX MAX4123ESA/MAX4125ESA MAX4123ESA/MAX4125ESA MAX4122EUK/MAX4124EUK MAX4122EUK/MAX4124EUK VCM = VEE to VCC ±4.40 MAX4126ESA/MAX4127ESD/MAX4128ESA MAX4126ESA/MAX4127ESD/MAX4128ESA ±0.95 MAX4126EUA/MAX4128EUA MAX4126EUA/MAX4128EUA Input Offset Voltage ±3.50 MAX4123EUA/MAX4125EUA MAX4123EUA/MAX4125EUA UNITS ±0.75 ±4.70 MAX4129ESD MAX4129ESD mV ±4.00 Input Offset Voltage Tempco ±2 µV/°C Input Bias Current VCM = VEE to VCC ±160 nA Input Offset Current VCM = VEE to VCC ±18 nA VCC + 0.20 V Common-Mode Input Voltage Range VEE 0.20 MAX4123ESA/MAX4125ESA MAX4123ESA/MAX4125ESA 76 MAX4122EUK/MAX4124EUK MAX4122EUK/MAX4124EUK 62 MAX4123EUA/MAX4125EUA MAX4123EUA/MAX4125EUA 60 MAX4126ESA/MAX4127ESD/MAX4128ESA MAX4126ESA/MAX4127ESD/MAX4128ESA 74 MAX4126EUA/MAX4128EUA MAX4126EUA/MAX4128EUA 58 MAX4129ESD MAX4129ESD Common-Mode Rejection Ratio (VEE 0.2V) < VCM < (VCC + 0.2V) 60 dB _ 3 MAX4122 MAX4122­MAX4129 MAX4129 DC ELECTRICAL CHARACTERISTICS (continued) MAX4122 MAX4122­MAX4129 MAX4129 Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply Rail-to-Rail I/O Op Amps DC ELECTRICAL CHARACTERISTICS (continued) (VCC = +2.7V to +6.5V, VEE = 0V, VCM = 0V, VOUT = VCC / 2, RL tied to VCC / 2, SHDN 2V (or open), TA = -40°C to +85°C, unless otherwise noted.) PARAMETER CONDITIONS Power-Supply Rejection Ratio Off-Leakage Current MIN VCC = 2.7V to 6.5V TYP SHDN < 0.8V, VOUT = 0V to VCC VCC = 2.7V Large-Signal Voltage Gain VCC = 5V MAX4122/ MAX4122/ MAX4123/ MAX4123/ MAX4124/ MAX4124/ MAX4125 MAX4125 66 VOUT = 0.25V to 4.75V, RL = 100k 86 VOUT = 0.4V to 4.6V, RL = 250 µA 84 VOUT = 0.4V to 2.3V, RL = 250 UNITS dB ±12 VOUT = 0.25V to 2.45V, RL = 100k 68 RL = 100k RL = 250 Output Voltage Swing MAX4126/ MAX4126/ MAX4127/ MAX4127/ MAX4128/ MAX4128/ MAX4129 MAX4129 MAX 74 RL = 100k RL = 250 SHDN Logic Threshold MAX4123/MAX4125/MAX4127 MAX4123/MAX4125/MAX4127 SHDN Input Current dB 25 VCC - VOH VOL - VEE 40 VCC - VOH 300 VOL - VEE 190 VCC - VOH 35 VOL - VEE 50 VCC - VOH 350 VOL - VEE 250 Low 0.8 MAX4123/MAX4125/MAX4127 MAX4123/MAX4125/MAX4127 High 2.0 Shutdown Supply Current per Amplifier SHDN < 0.8V, MAX4123/MAX4125/MAX4127 MAX4123/MAX4125/MAX4127 µA 6.5 2.7 VCM = VOUT = VCC / 2 V ±3 Operating Supply-Voltage Range Supply Current per Amplifier mV V VCC = 2.7V 775 VCC = 5V 850 VCC = 2.7V 50 VCC = 5V 70 µA µA AC ELECTRICAL CHARACTERISTICS (VCC = +2.7V to +6.5V, VEE = 0V, SHDN 2V (or open), TA = +25°C, unless otherwise noted.) PARAMETER Gain-Bandwidth Product Phase Margin Gain Margin Total Harmonic Distortion Slew Rate Settling Time to 0.01% Turn-On Time 4 CONDITIONS MIN TYP MAX4122/23/26/27/29 MAX4122/23/26/27/29 5 MAX4124/25/28 MAX4124/25/28 (AV 10) 25 MAX4122/23/26/27/29 MAX4122/23/26/27/29 64 MAX4124/25/28 MAX4124/25/28 (AV 10) 60 MAX4122/23/26/27/29 MAX4122/23/26/27/29 12 MAX4124/25/28 MAX4124/25/28 (AV 10) 10 f = 10kHz, VOUT = 2Vp-p, MAX4122/23/26/27/29 MAX4122/23/26/27/29 (AV = 1) 0.003 MAX4122/23/26/27/29 MAX4122/23/26/27/29 2 MAX4124/25/28 MAX4124/25/28 (AV 10) 10 MAX4122/23/26/27/29 MAX4122/23/26/27/29 (AV = 1), VOUT = 2V step 2.0 MAX4124/25/28 MAX4124/25/28 (AV 10), VOUT = 2V step 1.3 VCC = 0V to 3V step, VOUT = VCC / 2 1 _ MAX UNITS MHz degrees dB % V/µs µs µs Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply Rail-to-Rail I/O Op Amps (VCC = +2.7V to +6.5V, VEE = 0V, SHDN 2V (or open), TA = +25°C, unless otherwise noted.) PARAMETER CONDITIONS SHDN Delay MIN TYP Enable MAX UNITS 1 Disable VCC = 3V, VOUT = VCC / 2, MAX4123/25/27 MAX4123/25/27 0.2 Input Capacitance µs 3 pF 22 nV/Hz f = 1kHz 0.4 pA/Hz MAX4126/27/28/29 MAX4126/27/28/29 135 dB MAX4122/23/26/27/29 MAX4122/23/26/27/29 (AV = 1) 500 MAX4124/25/28 MAX4124/25/28 (AV 10) 500 Input Noise Voltage Density f = 1kHz Input Noise Current Density Amp-Amp Isolation Capacitive Load Stability pF _Typical Operating Characteristics (VCC = +5V, VEE = 0V, VCM = VCC / 2, TA = +25°C, unless otherwise noted.) MAX4122/23/26/27/29 MAX4122/23/26/27/29 GAIN AND PHASE vs. FREQUENCY (WITH CLOAD) 180 MAX4122/29-02 MAX4122/29-02 60 144 144 40 GAIN 72 20 36 0 -36 PHASE -72 -108 -20 AV = +1000 RL = CL = 500pF GAIN 72 20 36 0 0 -36 PHASE -72 -20 -40 100 1k 10k 100k 1M 10M -20 -144 -180 100M -40 100 1k 10k 100k 1M 10M -40 -60 -80 -108 -144 AV = +1 0 108 -100 -180 100M 10 100 FREQUENCY (Hz) 180 60 MAX4124/25/28 MAX4124/25/28 GAIN AND PHASE vs. FREQUENCY (WITH CLOAD) MAX4122/29-05 MAX4122/29-05 144 36 0 PHASE -36 -72 -108 -20 AV = +1000 RL = CL = 500pF GAIN 20 36 0 PHASE 0 -36 -72 -20 100 1k 10k 100k FREQUENCY (Hz) 100M 1M -180 10M -144 -40 100 -20 -40 -60 -80 -108 -144 -40 72 AV = +10 0 108 PSR (dB) 20 40 GAIN (dB) GAIN (dB) 72 0 10M 180 144 108 PHASE (DEGREES) GAIN AV = +1000 NO LOAD 1M MAX4124/25/28 MAX4124/25/28 POWER-SUPPLY REJECTION vs. FREQUENCY PHASE (DEGREES) MAX14122/29-04 MAX14122/29-04 40 10k 100k FREQUENCY (Hz) MAX4124/25/28 MAX4124/25/28 GAIN AND PHASE vs. FREQUENCY 60 1k MAX4122/29-06 MAX4122/29-06 0 GAIN (dB) 108 PSR (dB) AV = +1000 NO LOAD PHASE (DEGREES) GAIN (dB) 40 180 PHASE (DEGREES) MAX4122/29-01 MAX4122/29-01 60 MAX4122/23/26/27/29 MAX4122/23/26/27/29 POWER-SUPPLY REJECTION vs. FREQUENCY MAX4122/29-03 MAX4122/29-03 MAX4122/23/26/27/29 MAX4122/23/26/27/29 GAIN AND PHASE vs. FREQUENCY 1k 10k 100k 1M FREQUENCY (Hz) 10M -180 100M -100 10 100 1k 10k 100k 1M 10M 100M FREQUENCY (Hz) _ 5 MAX4122 MAX4122­MAX4129 MAX4129 AC ELECTRICAL CHARACTERISTICS (continued) _Typical Operating Characteristics (continued) (VCC = +5V, VEE = 0V, VCM = VCC / 2, TA = +25°C, unless otherwise noted.) 100 90 80 70 10 1 0.1 MAX4122/29-09 MAX4122/29-09 AV = +10 OUTPUT IMPEDANCE () 110 100 MAX4122/29-08 MAX4122/29-08 AV = +1 OUTPUT IMPEDANCE () 120 CHANNEL SEPARATION (dB) 100 MAX4122/29-07 MAX4122/29-07 130 MAX4124/25/28 MAX4124/25/28 OUTPUT IMPEDANCE vs. FREQUENCY MAX4122/23/26/27/29 MAX4122/23/26/27/29 OUTPUT IMPEDANCE vs. FREQUENCY MAX4126/27/28/29 MAX4126/27/28/29 CHANNEL SEPARATION vs. FREQUENCY 10 1 60 50 10k 100k FREQUENCY (Hz) 1M 0.01 100 10M 1M 10M 0.1 100 100M VCC = 6.5V 750 VCC = 2.7V 650 600 550 5 10k 100k 1M 10M 20 VCC = 6.5V 15 40 VCC = 2.7V 20 10 20 35 50 65 AV = +1 SHDN = 0V VCC = 6.5V VOUT SHORT TO VEE VCC = 2.7V 5 0 -5 VCC = 6.5V VOUT SHORT TO VCC VCC = 2.7V -10 -40 -25 -10 80 95 10 MAX4122/29-12 MAX4122/29-12 50 30 100M OUTPUT LEAKAGE CURRENT vs. TEMPERATURE 0 500 -40 -25 -10 1k FREQUENCY (Hz) 60 SHUTDOWN SUPPLY CURRENT (µA) MAX4122/29-10 MAX4122/29-10 850 5 20 35 50 65 80 95 -40 -25 -10 5 20 35 50 65 TEMPERATURE (°C) INPUT OFFSET VOLTAGE vs. TEMPERATURE INPUT BIAS CURRENT vs. COMMON-MODE VOLTAGE 80 95 TEMPERATURE (°C) INPUT BIAS CURRENT vs. TEMPERATURE 0.75 0 -0.75 -1.50 SO PACKAGE 40 VCC = 2.7V 30 VCC = 6.5V 20 10 0 -10 -20 -30 50 40 INPUT BIAS CURRENT (nA) 1.50 50 MAX4122/29-14 MAX4122/29-14 SOT23-5 PACKAGE INPUT BIAS CURRENT (nA) 3.00 2.25 MAX4122/29-13 MAX4122/29-13 TEMPERATURE (°C) VCC = 6.5V, VCM = VCC 30 20 MAX4122/29-15 MAX4122/29-15 SUPPLY CURRENT (µA) 100k SHUTDOWN SUPPLY CURRENT vs. TEMPERATURE 900 700 10k FREQUENCY (Hz) SUPPLY CURRENT PER AMPLIFIER vs. TEMPERATURE 800 1k LEAKAGE CURRENT (µA) 1k MAX4122/29-11 MAX4122/29-11 100 VOLTAGE (mV) MAX4122 MAX4122­MAX4129 MAX4129 Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply Rail-to-Rail I/O Op Amps VCC = 2.7V, VCM = VCC 10 0 -10 -20 VCC = 2.7V, VCM = VEE -30 -40 -2.25 -40 -50 -3.00 -50 -60 -40 -25 -10 5 20 35 50 65 TEMPERATURE (°C) 6 80 95 0 1 2 3 4 5 COMMON-MODE VOLTAGE (V) 6 VCC = 6.5V, VCM = VEE -40 -25 -10 5 20 35 50 65 TEMPERATURE (°C) _ 80 95 Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply Rail-to-Rail I/O Op Amps RL TO VCC 200 VOUT - VEE (mV) VCM = 0V TO 5.0V 105 100 95 VCM = 0.2V TO 5.2V RL TO VEE 250 150 VCC = 2.7V, RL = 500 100 200 150 VCM = 0.3V TO 5.3V 5 50 VCC = 6.5V, RL = 100k (TOP) VCC = 2.7V, RL = 100k (BOTTOM) 80 -40 -25 -10 VCC = 6.5V, RL = 100k 50 VCC = 2.7V, RL = 500 100 90 85 VCC = 6.5V, RL = 500 VCC = 6.5V, RL = 500 VCC - VOUT (mV) 115 300 MAX4122/29-17 MAX4122/29-17 250 MAX4122/29-16 MAX4122/29-16 20 35 50 65 VCC = 2.7V, RL = 100k 0 80 95 -40 -25 -10 5 20 35 50 65 0 -40 -25 -10 80 95 5 20 35 50 65 LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE LARGE-SIGNAL GAIN vs. TEMPERATURE 120 VCC = 6.5V RL TO VEE 110 125 MAX4122/29-20 MAX4122/29-20 RL = 100k MAX4122/29-19 MAX4122/29-19 VCC = 2.7V RL TO VEE 110 120 RL = 2k 90 RL = 500 RL = 2k 90 80 80 100 95 60 80 100 200 300 400 500 VCC = 2.7V, RL TO VCC 75 0 600 VCC = 6.5V, RL TO VCC 85 70 60 VCC = 2.7V, RL TO VEE 105 90 RL = 500 70 VCC = 6.5V, RL TO VEE 110 RL = 10k GAIN (dB) GAIN (dB) GAIN (dB) 100 RL = 10k RL = 500 VOUT(p-p) = VCC - 1V 115 RL = 100k 100 0 100 200 300 400 500 600 -40 -25 -10 5 20 35 50 65 OUTPUT VOLTAGE: EITHER SUPPLY (mV) OUTPUT VOLTAGE: EITHER SUPPLY (mV) LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE LARGE-SIGNAL GAIN vs. TEMPERATURE 120 VCC = 6.5V RL TO VCC 110 RL = 100k GAIN (dB) GAIN (dB) 100 RL = 2k 90 RL = 500 80 110 RL = 2k RL = 500 80 105 100 85 60 80 100 200 300 400 500 600 OUTPUT VOLTAGE: EITHER SUPPLY (mV) VCC = 2.7V, RL TO VEE 95 VCC = 2.7V, RL TO VCC 90 70 60 VCC = 6.5V, RL TO VCC 115 90 70 VCC = 6.5V, RL TO VEE 120 RL = 10k RL = 10k 100 125 GAIN (dB) RL = 100k MAX4122/29-23 MAX4122/29-23 VCC = 2.7V RL TO VCC MAX4122/29-22 MAX4122/29-22 120 0 80 95 TEMPERATURE (°C) LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE 110 80 95 TEMPERATURE (°C) LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE 120 TEMPERATURE (°C) MAX4122/29-21 MAX4122/29-21 TEMPERATURE (°C) MAX4122/29-24 MAX4122/29-24 COMMON-MODE REJECTION (dB) 120 110 MAXIMUM OUTPUT VOLTAGE vs. TEMPERATURE MINIMUM OUTPUT VOLTAGE vs. TEMPERATURE MAX4122/29-18 MAX4122/29-18 COMMON-MODE REJECTION vs. TEMPERATURE VOUT(p-p) = VCC - 600mV RL = 100k 75 0 100 200 300 400 500 600 OUTPUT VOLTAGE: EITHER SUPPLY (mV) -40 -25 -10 5 20 35 50 65 80 95 TEMPERATURE (°C) _ 7 MAX4122 MAX4122­MAX4129 MAX4129 _Typical Operating Characteristics (continued) (VCC = +5V, VEE = 0V, VCM = VCC / 2, TA = +25°C, unless otherwise noted.) _Typical Operating Characteristics (continued) (VCC = +5V, VEE = 0V, VCM = VCC / 2, TA = +25°C, unless otherwise noted.) 1.8 AV = +1 2Vp-p SIGNAL 500kHz LOWPASS FILTER RL = 10k TO VCC / 2 0.035 1.6 1.5 1.4 THD + N (%) 0.030 1.7 0.1 MAX4122/29-26 MAX4122/29-26 MAX4122/29-25 MAX4122/29-25 0.040 THD & NOISE (%) 0.025 0.020 0.015 AV = +1 10kHz SINEWAVE RL TO VCC / 2 500kHz LOWPASS FILTER 0.01 RL = 2k RL = 250 0.010 RL = 10k 0.005 1.2 0.001 0 -40 -25 -10 5 20 35 50 65 10 80 95 100 TEMPERATURE (°C) MAX4122/23/26/27/29 MAX4122/23/26/27/29 SMALL-SIGNAL TRANSIENT RESPONSE (NONINVERTING) 1k 10k FREQUENCY (Hz) 4.0 100k OUT 4.4 4.6 4.8 IN AV = +1 IN OUT OUT MAX4122/23/26/27/29 MAX4122/23/26/27/29 LARGE-SIGNAL TRANSIENT RESPONSE (INVERTING) MAX4124/25/28 MAX4124/25/28 SMALL-SIGNAL TRANSIENT RESPONSE (NONINVERTING) MAX4124/25/28 MAX4124/25/28 SMALL-SIGNAL TRANSIENT RESPONSE (INVERTING) AV = -1 AV = +10 MAX4122/29-32 MAX4122/29-32 TIME (2µs/div) MAX4122/29-31 MAX4122/29-31 TIME (200ns/div) MAX4122/29-34 MAX4122/29-34 TIME (200ns/div) AV = -10 IN (2V/div) IN (5mV/div) IN (5mV/div) OUT (2V/div) OUT (50mV/div) OUT (50mV/div) TIME (2µs/div) 8 5.0 MAX4122/23/26/27/29 MAX4122/23/26/27/29 LARGE-SIGNAL TRANSIENT RESPONSE (NONINVERTING) VOLTAGE (2V/div) VOLTAGE (50mV/div) IN AV = -1 4.2 PEAK-TO-PEAK SIGNAL AMPLITUDE (V) MAX4122/23/26/27/29 MAX4122/23/26/27/29 SMALL-SIGNAL TRANSIENT RESPONSE (INVERTING) MAX4122/29-28 MAX4122/29-28 AV = +1 RL = 100k MAX4122/29-30 MAX4122/29-30 1.3 MAX4122/29-29 MAX4122/29-29 MINIMUM OPERATING VOLTAGE (V) 1.9 MAX4123 MAX4123 TOTAL HARMONIC DISTORTION AND NOISE vs. PEAK-TO-PEAK SIGNAL AMPLITUDE MAX4122/23/26/27/29 MAX4122/23/26/27/29 TOTAL HARMONIC DISTORTION AND NOISE vs. FREQUENCY MAX4122/29-27 MAX4122/29-27 MAX4123 MAX4123 MINIMUM OPERATING VOLTAGE vs. TEMPERATURE VOLTAGE (50mV/div) MAX4122 MAX4122­MAX4129 MAX4129 Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply Rail-to-Rail I/O Op Amps TIME (200ns/div) TIME (200ns/div) _ Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply Rail-to-Rail I/O Op Amps MAX4124/25/28 MAX4124/25/28 LARGE-SIGNAL TRANSIENT RESPONSE (NONINVERTING) AV = +10 MAX4122/29-35 MAX4122/29-35 MAX4122/29-33 MAX4122/29-33 MAX4124/25/28 MAX4124/25/28 LARGE-SIGNAL TRANSIENT RESPONSE (INVERTING) AV = -10 IN (200mV/div) IN (200mV/div) OUT (2V/div) OUT (2V/div) TIME (2µs/div) TIME (2µs/div) _Pin Description PIN NAME FUNCTION MAX4122 MAX4122 MAX4124 MAX4124 MAX4123 MAX4123 MAX4125 MAX4125 MAX4126 MAX4126 MAX4128 MAX4128 MAX4127 MAX4127 MAX4129 MAX4129 1 6 - - - OUT Output 2 4 4 4 11 VEE Negative Supply. Ground for single-supply operation. 3 3 - - - IN+ Noninverting Input 4 2 - - - IN- Inverting Input 5 7 8 14 4 VCC Positive Supply - 1, 5 - 5, 7, 8, 10 - N.C. No Connect - 8 - - - SHDN - - 1, 7 1, 13 1, 7 OUT1, OUT2 - - 2, 6 2, 12 2, 6 IN1-, IN2- - - 3, 5 3, 11 3, 5 IN1+, IN2+ - - - 6, 9 - SHDN1, SHDN2 - - - - 8, 14 OUT3, OUT4 - - - - 9, 13 IN3-, IN4- - - - - 10, 12 IN3+, IN4+ Shutdown Control. Tie high or leave floating to enable amplifier. Outputs for amps 1 and 2 Inverting Inputs for amps 1 and 2 Noninverting Inputs for amps 1 and 2 Shutdown Control for amps 1 and 2. Tie high or leave floating to enable amplifier. Outputs for amps 3 and 4 Inverting Inputs for amps 3 and 4 Noninverting Inputs for amps 3 and 4 _ 9 MAX4122 MAX4122­MAX4129 MAX4129 _Typical Operating Characteristics (continued) (VCC = +5V, VEE = 0V, VCM = VCC / 2, TA = +25°C, unless otherwise noted.) MAX4122 MAX4122­MAX4129 MAX4129 Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply Rail-to-Rail I/O Op Amps MAX4122 MAX4122­ MAX4129 MAX4129 R3 R3 = R1 R2 R3 = R1 R1 R2 Figure 1a. Reducing Offset Error Due to Bias Current (Noninverting) R2 R1 R2 Figure 1b. Reducing Offset Error Due to Bias Current (Inverting) 1k 1k Figure 2. Input Protection Circuit 10 MAX4122 MAX4122­ MAX4129 MAX4129 R3 _ Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply Rail-to-Rail I/O Op Amps Rail-to-Rail Input Stage IBIAS = VDIFF - 1.8V 2k Rail-to-Rail Output Stage The minimum output voltage will be within millivolts of ground for single-supply operation where the load is referenced to ground (VEE). Figure 3 shows the input voltage range and output voltage swing of a MAX4123 MAX4123 connected as a voltage follower. With a +3V supply and the load tied to ground, the output swings from VOLTAGE (1V/div) VCC = 3V AV = +1 OUT TIME (2µs/div) Figure 3. Rail-to-Rail Input /Output Voltage Range 10,000 LOAD CAPACITIVE (pF) Devices in the MAX4122 MAX4122­MAX4129 MAX4129 family of highspeed amplifiers have rail-to-rail input and output stages designed for low-voltage single-supply operation. The input stage consists of separate NPN and PNP differential stages, which combine to provide an input common-mode range extending 0.2V beyond the supply rails. The PNP stage is active for input voltages close to the negative rail, and the NPN stage is active for input voltages near the positive rail. The input offset voltage is typically below 200µV. The switchover transition region, which occurs near V CC / 2, has been extended to minimize the slight degradation in CMRR caused by the mismatch of the input pairs. Their low offset voltage, high bandwidth, and rail-to-rail commonmode range make these op amps excellent choices for precision low-voltage data-acquisition systems. Since the input stage switches between the NPN and PNP pairs, the input bias current changes polarity as the input voltage passes through the transition region. To reduce the offset error caused by input bias currents flowing through external source impedances, match the effective impedance seen by each input (Figures 1a, 1b). High source impedances, together with the input capacitance, can create a parasitic pole that produces an underdamped signal response. Reducing the input impedance or placing a small (2pF to 10pF) capacitor across the feedback resistor improves the response. The MAX4122 MAX4122­MAX4129 MAX4129's inputs are protected from large differential input voltages by 1k series resistors and back-to-back triple diodes across the inputs (Figure 2). For differential input voltages less than 1.8V the input resistance is typically 500k. For differential input voltages greater than 1.8V the input resistance is approximately 2k, and the input bias current is determined by the following equation: IN MAX4122 MAX4122­MAX4129 MAX4129 _Applications Information UNSTABLE REGION 1000 RL TO VEE VOUT = VCC / 2 100 100 1k 10k 100k RESISTIVE LOAD Figure 4. Capacitive-Load Stability 0.00V to 2.90V. The maximum output voltage swing depends on the load, but will be within 150mV of a +3V supply, even with the maximum load (500 to ground). Driving a capacitive load can cause instability in most high-speed op amps, especially those with low quiescent current. The MAX4122 MAX4122­MAX4129 MAX4129 have a high tolerance for capacitive loads. They are stable with capacitive loads up to 500pF. Figure 4 gives the stable operating region for capacitive loads. Figures 5­8 show the response with capacitive loads, and the results of adding an isolation resistor in series with the output (Figure 9). The resistor improves the circuit's phase margin by isolating the load capacitor from the op amp's output. _ 11 AV = +10 CL = 500pF IN (5mV/div) IN VOLTAGE VOLTAGE (50mV/div) AV = +1 CL = 500pF OUT (50mV/div) OUT TIME (1µs/div) TIME (400ns/div) Figure 5. MAX4122/23/26/27/29 MAX4122/23/26/27/29 Small-Signal Transient Response with Capacitive Load IN Figure 6. MAX4124/25/28 MAX4124/25/28 Small-Signal Transient Response with Capacitive Load AV = +1 CL = 1000pF RS = 39 AV = +10 CL = 1000pF RS = 56 IN (5mV/div) VOLTAGE VOLTAGE (50mV/div) MAX4122 MAX4122­MAX4129 MAX4129 Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply Rail-to-Rail I/O Op Amps OUT OUT (50mV/div) TIME (400ns/div) TIME (1µs/div) Figure 7. MAX4122/23/26/27/29 MAX4122/23/26/27/29 Transient Response to Capacitive Load with Isolation Resistor Figure 8. MAX4124/25/28 MAX4124/25/28 Transient Response to Capacitive Load with Isolation Resistor VCC 0V TO 2.7V STEP FOR POWER-UP TEST. 2.7V 2k FOR SHUTDOWN ENABLE TEST. RS VOUT SHDN CL 2k 0V TO 2.7V STEP FOR SHUTDOWN TEST 10k 10 SUPPLY-CURRENT MONITORING POINT Figure 9. Capacitive-Load-Driving Circuit 12 Figure 10. Power-Up/Shutdown Test Circuit _ Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply Rail-to-Rail I/O Op Amps VOLTAGE (1V/div) VCC (1V/div) OUT MAX4122 MAX4122­MAX4129 MAX4129 VCC ICC (500µA/div) TIME (5µs/div) Figure 11. Power-Up Output Voltage TIME (5µs/div) Figure 12. Power-Up Supply Current VCC = 2.7V RL = 10k VCC = 2.7V SHDN (1V/div) SHDN (1V/div) OUT (0.5V/div) ICC (500µA/div) TIME (2µs/div) Figure 13. Shutdown Output Voltage TIME (2µs/div) Figure 14. Shutdown Enable/Disable Supply Current Power-Up and Shutdown Mode Power Supplies and Layout The MAX4122 MAX4122­MAX4129 MAX4129 amplifiers typically settle within 1µs after power-up. Using the test circuit of Figure 10, Figures 11 and 12 show the output voltage and supply current on power-up. The MAX4123 MAX4123, MAX4125 MAX4125, and MAX4127 MAX4127 have a shutdown option. When the shutdown pin (SHDN) is pulled low, the supply current drops below 25µA per amplifier and the amplifiers are disabled with the outputs in a high-impedance state. Pulling SHDN high or leaving it floating enables the amplifier. In the dual-amplifier MAX4129 MAX4129, the shutdown functions operate independently. Figures 13 and 14 show the output voltage and supply current responses of the MAX4123 MAX4123 to a shutdown pulse. The MAX4122 MAX4122­MAX4129 MAX4129 operate from a single +2.7V to +6.5V power supply, or from dual supplies of ±1.35V to ±3.25V. For single-supply operation, bypass the power supply with a 0.1µF ceramic capacitor in parallel with at least 1µF. For dual supplies, bypass each supply to ground. Good layout improves performance by decreasing the amount of stray capacitance at the op amp's inputs and outputs. To decrease stray capacitance, minimize trace lengths and resistor leads by placing external components close to the op amp's pins. _ 13 MAX4122 MAX4122­MAX4129 MAX4129 Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply Rail-to-Rail I/O Op Amps _Pin Configurations TOP VIEW OUT 1 VEE 2 5 VCC 4 IN- MAX4122 MAX4122 MAX4124 MAX4124 IN+ 3 SOT23-5 N.C. 1 IN1- 2 IN1+ 3 OUT1 1 8 VEE 4 7 VCC IN1- 2 6 OUT IN1+ 3 5 MAX4123 MAX4123 MAX4125 MAX4125 SHDN N.C. 8 7 OUT2 6 IN2- 5 VEE 4 MAX4126 MAX4126 MAX4128 MAX4128 VCC IN2+ SO/µMAX SO/µMAX OUT1 1 14 VCC OUT1 1 14 OUT4 IN1- 2 13 OUT2 IN1- 2 13 IN4- IN1+ 3 12 IN2- IN1+ 3 11 IN2+ VCC 4 10 N.C. IN2+ 5 VEE 4 MAX4127 MAX4127 N.C. 5 SHDN1 6 9 SHDN2 N.C. 7 8 N.C. SO 14 12 IN4+ MAX4129 MAX4129 11 VEE 10 IN3+ IN2- 6 9 IN3- OUT2 7 8 OUT3 SO _ Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply Rail-to-Rail I/O Op Amps PART TEMP. RANGE PINPACKAGE MARKING INFO. MAX4124EUK MAX4124EUK -40°C to +85°C MAX4125ESA MAX4125ESA -40°C to +85°C MAX4125EUA MAX4125EUA -40°C to +85°C 5 SOT23-5 8 SO 8 µMAX AABA - - MAX4126ESA MAX4126ESA -40°C to +85°C MAX4126EUA MAX4126EUA -40°C to +85°C MAX4127C/D MAX4127C/D 0°C to +70°C 8 SO 8 µMAX Dice* - - - MAX4127ESD MAX4127ESD -40°C to +85°C MAX4128ESA MAX4128ESA -40°C to +85°C MAX4128EUA MAX4128EUA -40°C to +85°C 14 SO 8 SO 8 µMAX - - - MAX4129ESD MAX4129ESD -40°C to +85°C 14 SO - *Dice are specified at TA = +25°C, DC parameters only. _Chip Topographies MAX4123/ MAX4123/ MAX4125 MAX4125 V EE MAX4127/ MAX4127/ MAX4128 MAX4128 OUT1 IN- V CC IN1- OUT2 SHDN iN+ 0.055" (1.397mm) 0.066" (1.676mm) IN2- IN1+ V CC V EE V EE IN2+ OUT 0.036" (0.914mm) V CC SHDN1 V EE V CC SHDN2 0.053" (1.346mm) TRANSISTOR COUNT: 170 TRANSISTOR COUNT: 340 SUBSTRATE CONNECTED TO VEE SUBSTRATE CONNECTED TO VEE _ 15 MAX4122 MAX4122­MAX4129 MAX4129 _Ordering Information (continued) _Tape-and-Reel Information E D P0 W P2 B0 t D1 F P NOTE: DIMENSIONS ARE IN MM. AND FOLLOW EIA481-1 EIA481-1 STANDARD. K0 A0 A0 3.200±0.102 E 1.753±0.102 P0 3.988 B0 3.099±0.102 F3.505±0.051 P010 40.005±0.203 P2 2.007 ±0.051 +0.102 +0.000 D 1.499 D1 0.991 K0 P +0.254 +0.000 1.397±0.102 3.988 t ±0.102 ±0.102 0.254 ±0.127 +0.305 -0.102 W8.001 5 SOT23-5 MAX4122 MAX4122­MAX4129 MAX4129 Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply Rail-to-Rail I/O Op Amps _Package Information b DIM e E e1 D A A1 A2 b C D E E1 L e e1 MILLIMETERS MIN MAX 0.90 1.45 0.00 0.15 0.90 1.30 0.35 0.50 0.08 0.20 2.80 3.00 2.60 3.00 1.50 1.75 0.35 0.55 0.95ref 1.90ref 0° 10° 21-0057B 21-0057B E1 A A2 C L 5-PIN SOT23-5 SMALL-OUTLINE TRANSISTOR PACKAGE A1 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 16 _Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © 1996 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.