KM4170 OPA340 OPA343 TLV2461 SC70-5 KEB002 KM4170IT5 KEB011 KM4170IS5 SC74A - Datasheet Archive

 

KM4170 Tiny, Low Cost, +2.7V & +5V, Rail-to-Rail I/O Amplifier Features I I I I I I I I General Description 136µA

 

www.fairchildsemi.com KM4170 KM4170 Tiny, Low Cost, +2.7V & +5V, Rail-to-Rail I/O Amplifier Features I I I I I I I I General Description 136µA supply current 4.9MHz bandwidth Output swings to within 20mV of either rail Input voltage range exceeds the rail by >250mV 5.3V/µs slew rate 35mA short circuit output current 24nV/Hz input voltage noise Directly replaces OPA340 OPA340, OPA343 OPA343, and TLV2461 TLV2461 in single supply applications Available in SC70 and SOT23-5 package options Applications I I I I I I I I I The KM4170 KM4170 is an ultra-low cost, low power, voltage feedback amplifier. At 5V, the KM4170 KM4170 uses only 160µA of supply current and is designed to operate from a supply range of 2.5V to 5.5V . The input voltage range exceeds the negative and positive rails. The KM4170 KM4170 offers high bipolar performance at a low CMOS price. The KM4170 KM4170 offers superior dynamic performance with a 4.9MHz small signal bandwidth and 5.3V/µs slew rate. The combination of low power, high bandwidth, and rail-to-rail performance make the KM4170 KM4170 well suited for battery-powered communication/computing systems. Portable/battery-powered applications PCMCIA, USB Mobile communications, cellular phones, pagers Notebooks and PDA's Sensor Interface A/D buffer Active filters Signal conditioning Portable test instruments Large Signal Frequency Response Vs = 5V KM4170 KM4170 Packages SOT23-5 2 +In 3 1 10 Output Swing vs. Load 1.35 - RL = 10k 4 5 2 + 1 -Vs 0.1 +Vs -In SC70-5 SC70-5 Out Vo = 2Vpp Frequency (MHz) +Vs Output Voltage (0.27V/div) -Vs Vo = 4Vpp 0.01 5 1 + Out Vo = 1Vpp Magnitude (1dB/div) I RL = 1k RL = 75 0 RL = 100 RL = 200 RL = 75/100 -1.35 - -2.0 0 2.0 Input Voltage (0.4V/div) +In 3 4 -In REV. 2A April 2001 DATA SHEET KM4170 KM4170 KM4170 KM4170 Electrical Characteristics Parameters (Vs = +2.7V, G = 2, RL = 10k to Vs/2, Rf = 5k; unless noted) Conditions Frequency Domain Response -3dB bandwidth Min & Max +25°C Case Temperature TYP UNITS NOTES +25°C 1 G = +1, Vo = 0.02Vpp G = +2, Vo = 0.2Vpp G = +2, Vo = 2Vpp 4.9 3.7 1.4 2.2 MHz MHz MHz MHz Time Domain Response rise and fall time overshoot slew rate 1V step 1V step 1V step 163 1MHz -75 -76 0.03 24 dBc dBc % nV/Hz full power bandwidth gain bandwidth product DC Performance input offset voltage average drift input bias current average drift power supply rejection ratio open loop gain quiescent current Input Characteristics input resistance input capacitance input common mode voltage range common mode rejection ratio Output Characteristics output voltage swing output current short circuit output current power supply operating range DC RL = 10k DC, Vcm = 0V to Vs RL = 10k to Vs/2 RL = 1k to Vs/2 RL = 200 to Vs/2 0.5 5 90 32 83 90 136 12 2 -0.25 to 2.95 81 ±6 190 mV µV/°C nA pA/°C dB dB µA 2 55 M pF V dB 2 420 55 0.02 to 2.68 0.06 to 2.64 0.05 to 2.63 0.11 to 2.52 ±16 ±35 2.7 2.5 to 5.5 V V V mA mA V 2 2 2 2 Min/max ratings are based on product characterization and simulation. Individual parameters are tested as noted. Outgoing quality levels are determined from tested parameters. NOTES: 1) For G = +1, Rf = 0. 2) 100% tested at +25°C. Absolute Maximum Ratings supply voltage 0 to +6V maximum junction temperature +175°C storage temperature range -65°C to +150°C lead temperature (10 sec) +300°C operating temperature range (recommended) -40°C to +85°C input voltage range +Vs + 0.5V, -Vs - 0.5V internal power dissipation see power derating curves 2 Package Thermal Resistance Package JA 5 lead SOT23 256°C/W REV. 2A April 2001 KM4170 KM4170 DATA SHEET KM4170 KM4170 Electrical Characteristics Parameters (Vs = +5V, G = 2, RL = 10k to Vs/2, Rf = 5k; unless noted) Conditions Frequency Domain Response -3dB bandwidth Min & Max +25°C Case Temperature TYP UNITS NOTES +25°C 1 G = +1, Vo = 0.02Vpp G = +2, Vo = 0.2Vpp G = +2, Vo = 2Vpp 4.3 3.0 2.3 2.0 MHz MHz MHz MHz Time Domain Response rise and fall time overshoot slew rate 1V step 1V step 1V step 110 1MHz -73 -75 0.03 27 dBc dBc % nV/Hz full power bandwidth gain bandwidth product DC Performance input offset voltage average drift input bias current average drift power supply rejection ratio open loop gain quiescent current Input Characteristics input resistance input capacitance input common mode voltage range common mode rejection ratio Output Characteristics output voltage swing output current short circuit output current power supply operating range DC RL = 10k DC, Vcm = 0V to Vs RL = 10k to Vs/2 RL = 1k to Vs/2 RL = 200 to Vs/2 1.5 15 90 40 60 80 160 12 2 -0.25 to 5.25 85 ±8 235 mV µV/°C nA pA/°C dB dB µA 2 58 M pF V dB 2 450 40 0.04 to 4.96 0.08 to 4.92 0.07 to 4.9 0.14 to 4.67 ±30 ±60 5.0 2.5 to 5.5 V V V mA mA V 2 2 2 2 Min/max ratings are based on product characterization and simulation. Individual parameters are tested as noted. Outgoing quality levels are determined from tested parameters. NOTES: 1) For G = +1, Rf = 0. 2) 100% tested at +25°C. REV. 2A April 2001 3 DATA SHEET KM4170 KM4170 KM4170 KM4170 Performance Characteristics (Vs = +2.7, G = 2, RL = 10k to Vs/2, Rf = 5k; unless noted) Inverting Frequency Response Vs = +5V Normalized Magnitude (1dB/div) Normalized Magnitude (1dB/div) Non-Inverting Freq. Response Vs = +5V Vo = 0.2Vpp G=1 Rf = 0 G=2 Rf = 5k G = 10 Rf = 5k G=5 Rf = 5k 0.01 0.1 1 Vo = 0.2Vpp G = -2 Rf = 5k G = -10 Rf = 5k G = -5 Rf = 5k 0.01 10 G = -1 Rf = 5k 0.1 1 10 Non-Inverting Freq. Response Vs = +2.7V Inverting Frequency Response Vs = +2.7V Vo = 0.2Vpp Normalized Magnitude (1dB/div) Frequency (MHz) Normalized Magnitude (1dB/div) Frequency (MHz) G=1 Rf = 0 G=2 Rf = 5k G = 10 Rf = 5k G=5 Rf = 5k 0.01 0.1 1 Rf = 5k G = -2 G = -1 G = -10 G = -5 0.01 10 0.1 1 10 Frequency (MHz) Frequency (MHz) Frequency Response vs. CL Frequency Response vs. RL CL = 100pF Rs = 100 CL = 50pF Rs = 0 Magnitude (1dB/div) Magnitude (1dB/div) Vo = 0.05V CL = 20pF Rs = 0 CL = 10pF Rs = 0 + Rs - CL 5k RL = 1k RL = 10k RL = 200 RL = 50 RL 5k 0.01 0.1 1 0.01 10 0.1 Frequency (MHz) 1 10 Frequency (MHz) Large Signal Frequency Response Open Loop Gain & Phase vs. Frequency 140 Magnitude (1dB/div) Vo = 1Vpp Vo = 4Vpp Vo = 2Vpp Open Loop Gain (dB) 120 |Gain| RL = 10k Vs = 5V |Gain| No load 100 80 60 0 40 -45 -90 20 Phase RL = 10k 0 Phase No load 101 103 -135 -20 0.01 0.1 1 Frequency (MHz) 4 10 Open Loop Phase (deg) Vs = 5V -180 100 102 104 105 106 107 108 Frequency (Hz) REV. 2A April 2001 KM4170 KM4170 DATA SHEET KM4170 KM4170 Performance Characteristics (Vs = +2.7V, G = 2, RL = 10k to Vs/2, Rf = 5k; unless noted) 2nd & 3rd Harmonic Distortion; Vs = +2.7V 2nd Harmonic Distortion vs. Vo -20 -20 Vo = 1Vpp -40 3rd RL = 200 3rd RL = 1k 2nd RL = 200 -30 Distortion (dB) Distortion (dBc) -30 3rd RL = 10k -50 -60 -70 -80 2nd RL = 1k 2nd RL = 10k -40 -50 50kHz -60 50kHz -70 10kHz, 20kHz -80 10kHz -90 -90 0 20 40 60 80 0.5 100 1 Frequency (kHz) 3rd Harmonic Distortion vs. Vo 2 2.5 CMRR 0 -10 -30 -20 50kHz -40 -50 CMRR (dB) Distortion (dB) 1.5 Output Amplitude (Vpp) -20 100kHz -60 20kHz -70 -30 -40 -50 -60 -70 10kHz -80 -80 -90 -90 0.5 1 1.5 2 10 2.5 100 Output Amplitude (Vpp) 1000 10000 100000 Frequency (Hz) PSRR Output Swing vs. Load 1.35 0 RL = 10k Output Voltage (0.27V/div) -10 -20 PSRR (dB) 100kHz -30 -40 -50 -60 -70 -80 -90 RL = 1k RL = 75 0 RL = 100 RL = 200 RL = 75/100 -1.35 10 100 1000 10000 100000 Frequency (Hz) -2.0 0 2.0 Input Voltage (0.4V/div) Output Voltage (0.5V/div) Pulse Resp. vs. Common Mode Voltage 1.2V offset 0.6V offset No offset -0.6V offset -1.2V offset Time (1µs/div) REV. 2A April 2001 5 DATA SHEET KM4170 KM4170 General Description The KM4170 KM4170 is single supply, general purpose, voltagefeedback amplifier. The KM4170 KM4170 is fabricated on a complimentary bipolar process, features a rail-to-rail input and output, and is unity gain stable. The typical non-inverting circuit schematic is shown in Figure 1. Overdrive Recovery Overdrive of an amplifier occurs when the output and/or input ranges are exceeded. The recovery time varies based on whether the input or output is overdriven and by how much the ranges are exceeded. The KM4170 KM4170 will typically recover in less than 50ns from an overdrive condition. Figure 3 shows the KM4170 KM4170 in an overdriven condition. +Vs G=5 + In + 0.01µF Out KM4170 KM4170 - Output Input Voltage (0.5V/div) 6.8µF Input Rf Time (10µs/div) Rg Figure 3: Overdrive Recovery Figure 1: Typical Non-inverting Configuration Input Common Mode Voltage The common mode input range extends to 250mV below ground and to 250mV above Vs, in single supply operation. Exceeding these values will not cause phase reversal. However, if the input voltage exceeds the rails by more than 0.5V, the input ESD devices will begin to conduct. The output will stay at the rail during this overdrive condition. If the absolute maximum input voltage (700mV beyond either rail) is exceeded, externally limit the input current to ±5mA as shown in Figure 2. Driving Capacitive Loads The Frequency Response vs. CL plot, illustrates the response of the KM4170 KM4170. A small series resistance (Rs) at the output of the amplifier, illustrated in Figure 4, will improve stability and settling performance. Rs values in the Frequency Response vs. CL plot were chosen to achieve maximum bandwidth with less than 2dB of peaking. For maximum flatness, use a larger Rs. As the plot indicates, the KM4170 KM4170 can easily drive a 50pF capacitive load without a series resistance. + Rs Rf KM4170 KM4170 Vin Vo CL RL Rg + 10k Figure 4: Typical Topology for driving a capacitive load Figure 2: Circuit for Input Current Protection Power Dissipation The maximum internal power dissipation allowed is directly related to the maximum junction temperature. If the maximum junction temperature exceeds 150°C, some performance degradation will occur. It the maximum junction temperature exceeds 175°C for an extended time, device failure may occur. 6 Driving a capacitive load introduces phase-lag into the output signal, which reduces phase margin in the amplifier. The unity gain follower is the most sensitive configuration. In a unity gain follower configuration, the KM4170 KM4170 requires a 510 series resistor to drive a 100pF load. REV. 2A April 2001 KM4170 KM4170 DATA SHEET Layout Considerations General layout and supply bypassing play major roles in high frequency performance. Fairchild has evaluation boards to use as a guide for high frequency layout and as aid in device testing and characterization. Follow the steps below as a basis for high frequency layout: · Include 6.8µF and 0.01µF ceramic capacitors · Place the 6.8µF capacitor within 0.75 inches of the power pin · Place the 0.01µF capacitor within 0.1 inches of the power pin · Remove the ground plane under and around the part, especially near the input and output pins to reduce parasitic capacitance · Minimize all trace lengths to reduce series inductances Refer to the evaluation board layouts shown in Figure 6 for more information. Evaluation Board Information The following evaluation boards are available to aid in the testing and layout of this device: Eval Board Description Figure 5: Evaluation Board Schematic Products KEB002 KEB002 Single Channel, Dual Supply, 5 and 6 lead SOT23 KM4170IT5 KM4170IT5 KEB011 KEB011 Single Channel, Dual Supply, 5 and 6 lead SC70 KM4170IS5 KM4170IS5 Evaluation board schematics and layouts are shown in Figure 5 and Figure 6. REV. 2A April 2001 7 DATA SHEET KM4170 KM4170 KM4170 KM4170 Evaluation Board Layout Figure 6a: KEB002 KEB002 (top side) Figure 6c: KEB011 KEB011 (top side) 8 Figure 6b: KEB002 KEB002 (bottom side) Figure 6d: KEB011 KEB011 (bottom side) REV. 2A April 2001 KM4170 KM4170 DATA SHEET b C L DATUM 'A' KM4170 KM4170 Package Dimensions e 2 SOT23-5 C L C L E e1 C D C L A e L SC70 C L C L HE E Q1 C L REV. 2A April 2001 A2 SYMBOL e D b E HE Q1 A2 A1 A c L MIN MAX 0.65 BSC 1.80 2.20 0.15 0.30 1.15 1.35 1.80 2.40 0.10 0.40 0.80 1.00 0.00 0.10 0.80 1.10 0.10 0.18 1.10 0.30 C D A MAX 1.45 0.15 1.30 0.50 0.20 3.10 3.00 1.75 0.55 0.95 ref 1.90 ref 0 10 1. All dimensions are in millimeters. 2 Foot length measured reference to flat foot surface parallel to DATUM 'A' and lead surface. 3. Package outline exclusive of mold flash & metal burr. 4. Package outline inclusive of solder plating. 5. Comply to EIAJ SC74A SC74A. 6. Package ST 0003 REV A supercedes SOT-D-2005 REV C. A1 C L MIN 0.90 0.00 0.90 0.25 0.09 2.80 2.60 1.50 0.35 NOTE: A2 b E1 SYMBOL A A1 A2 b C D E E1 L e e1 NOTE: A1 1. 2. 3. 4. All dimensions are in millimeters. Dimensions are inclusive of plating. Dimensions are exclusive of mold flashing and metal burr. All speccifications comply to EIAJ SC70. 9 DATA SHEET KM4170 KM4170 Ordering Information Model Part Number Package Container Pack Qty KM4170 KM4170 KM4170IT5 KM4170IT5 SOT23-5 Partial Reel