ISL28190 ISL28290 FN6247 ISL28190FHZ-T7 ISL28290FUZ 8290Z ISL28290FUZ-T7 - Datasheet Archive

 

® Data Sheet September 19, 2007 Single and Dual Single Supply Ultra-Low Noise, Ultra-Low Distortion, Rail-to-Rail Output, Op

 

ISL28190 ISL28190, ISL28290 ISL28290 ® Data Sheet September 19, 2007 Single and Dual Single Supply Ultra-Low Noise, Ultra-Low Distortion, Rail-to-Rail Output, Op Amp The ISL28190 ISL28190 and ISL28290 ISL28290 are tiny single and dual ultra-low noise, ultra-low distortion operational amplifiers. Fully specified to operated down to +3V single supply. These amplifiers have outputs that swing rail-to-rail, and an input common mode voltage that extends below ground (ground sensing). The ISL28190 ISL28190 and ISL28290 ISL28290 are unity gain stable with an input referred voltage noise of 1nV/Hz. Both parts feature 0.00017% THD+N @ 1kHz. FN6247 FN6247.5 Features · 1nV/Hz input voltage noise · 1kHz THD+N typical 0.00017% at 2VP-P VOUT · Harmonic Distortion -87dBc, -90dBc, fo = 1MHz · 170MHz -3dB bandwidth · 50V/µs slew rate · 700µV maximum offset voltage · 10µA typical input bias current · 103dB typical CMRR · 3V to 5.5V single supply voltage range The ISL28190 ISL28190 is available in the space-saving 6 Ld µTDFN (1.6mmx1.6mm) and SOT-23 packages. The ISL28290 ISL28290 is available in the 10 Ld µTQFN (1.8mmx1.4mm) and MSOP packages. All devices are guaranteed over -40°C to +125°C. Ordering Information PART NUMBER (Note) ISL28190FHZ-T7 ISL28190FHZ-T7* PART MARKING GABH PACKAGE (Pb-free) PKG. DWG. # 6 Ld TDFN L6.1.6x1.6A Tape and Reel ISL28290FUZ ISL28290FUZ 8290Z 8290Z 10 Ld MSOP ISL28290FUZ-T7 ISL28290FUZ-T7* 8290Z 8290Z 10 Ld MSOP MDP0043 MDP0043 Tape and Reel MDP0043 MDP0043 10 Ld TQFN L10.1.8x1.4A Tape and Reel Coming Soon ISL28290FRUZ-T7 ISL28290FRUZ-T7* *"-T7" or "-TK" suffix is for tape and reel. Please refer to TB347 TB347 for details on reel specifications. NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020 STD-020. 1 · Ground sensing · Enable pin · Pb-free plus anneal available (RoHS compliant) 6 Ld SOT-23 MDP0038 MDP0038 Tape and Reel Coming Soon ISL28190FRUZ-TK ISL28190FRUZ-TK* · Rail-to-rail output Applications · Low noise signal processing · Low noise microphones/preamplifiers · ADC buffers · DAC output amplifiers · Digital scales · Strain gauges/sensor amplifiers · Radio systems · Portable equipment · Infrared detectors CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2006, 2007. All Rights Reserved. All other trademarks mentioned are the property of their respective owners. ISL28190 ISL28190, ISL28290 ISL28290 Pinouts ISL28190 ISL28190 (6 LD 1.6X1.6X0.5 µTDFN) TOP VIEW ISL28190 ISL28190 (6 LD SOT-23) TOP VIEW OUT 1 6 V+ V- 2 OUT 1 4 IN- IN+ 3 IN+_A 3 OUT_A 10 10 V+ 9 OUT_B + + V- 4 ENABLE_A 5 OUT_B IN-_A 2 4 V- ISL28290 ISL28290 (10 LD TQFN) TOP VIEW ISL28290 ISL28290 (10 LD MSOP) TOP VIEW OUT_A 1 5 ENABLE V+ IN+ 3 IN- 2 - + 5 ENABLE + - 6 V+ 9 8 8 IN-_B 7 IN+_B IN-_A 7 1 6 ENABLE_B IN+_A 6 IN+_B 2 3 4 5 V- ENABLE_A ENABLE_B 2 IN-_B + + September 19, 2007 ISL28190 ISL28190, ISL28290 ISL28290 Absolute Maximum Ratings (TA = +25°C) Thermal Information Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V Supply Turn On Voltage Slew Rate . . . . . . . . . . . . . . . . . . . . . 1V/s Differential Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5V Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . V- - 0.5V to V+ + 0.5V ESD Tolerance Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3kV Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300V Thermal Resistance JA (°C/W) 6 Ld SOT-23 Package . . . . . . . . . . . . . . . . . . . . . . . 230 6 Ld µTDFN Package . . . . . . . . . . . . . . . . . . . . . . . 120 10 Ld MSOP Package . . . . . . . . . . . . . . . . . . . . . . . 115 6 Ld µTQFN Package . . . . . . . . . . . . . . . . . . . . . . . 143 Ambient Operating Temperature Range . . . . . . . . .-40°C to +125°C Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . +125°C Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and result in failures not covered by warranty. IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests are at the specified temperature and are pulsed tests, therefore: TJ = TC = TA Electrical Specifications PARAMETER V+ = 5.0V, V- = GND, RL = Open, RF = 1k, AV = -1 unless otherwise specified. Parameters are per amplifier. Typical values are at V+ = 5V, TA = +25°C. Boldface limits apply over the operating temperature range, -40°C to +125°C, temperature data guaranteed by characterization. CONDITIONS MIN (Note 1) TYP -1100 DESCRIPTION 240 MAX (Note 1) UNIT DC SPECIFICATIONS VOS Input Offset Voltage V OS -T Input Offset Drift vs Temperature IIO Input Offset Current 40 500 900 nA IB Input Bias Current 10 16 18 µA VCM Common-Mode Voltage Range 3.8 V CMRR Common-Mode Rejection Ratio VCM = 0V to 3.8V 78 103 dB PSRR Power Supply Rejection Ratio VS = 3V to 5V 74 80 dB AVOL Large Signal Voltage Gain VO = 0.5V to 4V, RL = 1k 94 90 102 dB VOUT Maximum Output Voltage Swing Output low, RL = 1k Figure 21 1.9 0 Output high, RL = 1k, V+ = 5V 700 900 20 4.95 4.92 µV µV/°C 50 80 4.97 mV V IS,ON Supply Current per Channel, Enabled 8.5 11 13 mA IS,OFF Supply Current, Disabled 26 35 52 µA IO+ Short-Circuit Output Current RL = 10 95 90 144 mA IO- Short-Circuit Output Current RL = 10 95 90 135 mA VSUPPLY Supply Operating Range V+ to V- 3 VENH EN High Level Referred to V- 2 VENL EN Low Level Referred to V- 3 5.5 V V 0.8 V September 19, 2007 ISL28190 ISL28190, ISL28290 ISL28290 Electrical Specifications PARAMETER V+ = 5.0V, V- = GND, RL = Open, RF = 1k, AV = -1 unless otherwise specified. Parameters are per amplifier. Typical values are at V+ = 5V, TA = +25°C. Boldface limits apply over the operating temperature range, -40°C to +125°C, temperature data guaranteed by characterization. (Continued) DESCRIPTION CONDITIONS MIN (Note 1) TYP MAX (Note 1) UNIT IENH EN Pin Input High Current VEN = V+ 0.8 1.2 1.4 µA IENL EN Pin Input Low Current VEN = V- 20 80 100 nA RF = 0 CL = 20pF, AV = 1, RL = 10k 170 MHz 0.00017 % -87 dBc -90 dBc AC SPECIFICATIONS GBW -3dB Unity Gain Bandwidth THD+N Total Harmonic Distortion + Noise f = 1kHz. VOUT + 2VP-P, AV = +1, RL = 10k HD (1MHz) 2nd Harmonic Distortion VOUT = 2VP-P, AV = 1 3rd Harmonic Distortion ISO Off-state Isolation fO = 100kHz AV = +1; VIN = 100mVP-P; RF = 0, CL = 20pF, AV = 1, RL = 10k -38 dB X-TALK ISL28290 ISL28290 Channel to Channel Crosstalk fO = 100kHz VS = ±2.5V; AV = +1; VIN = 1VP-P, RF = 0, CL = 20pF, AV = 1, RL = 10k -105 dB PSRR Power Supply Rejection Ratio fO = 100kHz VS = ±2.5V; AV = +1; VSOURCE = 1VP-P, RF = 0, CL = 20pF, AV = 1, RL = 10k -70 dB CMRR Common Mode Rejection Ratio fO = 100kHz VS = ±2.5V; AV = +1; VCM = 1VP-P, RF = 0, CL = 20pF, AV = 1, RL = 10k -65 dB en Input Referred Voltage Noise fO = 1kHz 1 nV/Hz in Input Referred Current Noise fO = 10kHz 2.1 pA/Hz 50 V/µs TRANSIENT RESPONSE SR Slew Rate 30 25 tpd Propagation Delay 10% VIN -10% VOUT AV = 1, VOUT = 100mVP-P, RF = 0, CL = 1.2pF 1.0 ns tr, tf, Small Signal Rise Time, tr 10% to 90% AV = +1, VOUT = 0.1VP-P, RF = 0, CL = 1.2pF 3.3 ns 6.3 ns tr, tf Large Signal Rise Time, tr 10% to 90% AV = +2, VOUT = 1VP-P, RF = RG = 499, RL = 10k, CL = 1.2pF 44 ns 51 ns AV = +2, VOUT = 4.7VP-P, RF = RG = 499, RL = 10k, CL = 1.2pF 190 ns 187 ns 45 ns Fall Time, tf 10% to 90% Fall Time, tf 10% to 90% Rise Time, tr 10% to 90% Fall Time, tf 10% to 90% AV = 1, VOUT = 1VP-P, RF = 0, CL = 1.2pF ts Settling Time to 0.1% 90% VOUT to 0.1% VOUT tEN ENABLE to Output Turn-on Delay AV = 1, VOUT = 1VDC, RL = 10k, CL = 1.2pF Time; 10% EN - 10% VOUT 330 ns ENABLE to Output Turn-off Delay AV = 1, VOUT = 0VDC, RL = 10k, CL = 1.2pF Time; 10% EN - 10% VOUT 50 ns NOTE: 1. Parts are 100% tested at +25°C. Full temperature limits are guaranteed by bench and tester characterization. 4 September 19, 2007 ISL28190 ISL28190, ISL28290 ISL28290 Typical Performance Curves 10 2 0 RL = 10k -1 RL = 100 -2 -3 RL = 1k -4 -5 V+ = 5V -6 AV = +1 C = 10pF -7 V L OUT = 10mVP-P -8 100k 1M 100M 10M CL = 110pF 6 CLOSED LOOP GAIN (dB) CLOSED LOOP GAIN (dB) 8 RL = 100k 1 CL = 92pF 4 CL = 57pF 2 CL = 32pF 0 CL = 20pF -2 -4 -10 10k 1G 1M 100k FIGURE 1. GAIN vs FREQUENCY FOR VARIOUS RLOAD 60 -2 VOUT = 100mVP-P -3 -4 -5 -6 -7 AV = 1000, RF = 499k, RG = 499 V+ = 5V RL = 10k VOUT = 100mVP-P 50 VOUT = 1VP-P GAIN (dB) CLOSED LOOP GAIN (dB) 70 0 -1 40 V+ = 5V AV = +1 RL = 10k CL = 10pF AV = 100, RF = 49.9k, RG = 499 30 20 VOUT = 10mVP-P -8 10k AV = 10, RF = 4.42k, RG=499 10 0 1M 100k 10M 100M AV = 1, RF = 0, RG = INF -10 10k 1G 100k 1M FIGURE 3. -3dB BANDWIDTH vs VOUT 100M FIGURE 4. FREQUENCY RESPONSE vs CLOSED LOOP GAIN 1M 1M 100k OUTPUT IMPEDANCE () INPUT IMPEDANCE () 10M FREQUENCY (Hz) FREQUENCY (Hz) 10k 1k 100 1G FIGURE 2. GAIN vs FREQUENCY FOR VARIOUS CLOAD VOUT = 1mVP-P 1 100M 10M FREQUENCY (Hz) FREQUENCY (Hz) 2 CL = 1pF V+ = 5V -6 AV = +1 R = 10k -8 V L OUT = 10mVP-P V+ = 5V, 3V ENABLED AND DISABLED VSOURCE = 1VP-P 10 100k 100k 10k 1k 100 V+ = 5V, 3V VSOURCE = 1VP-P 1M 10M 100M FREQUENCY (Hz) FIGURE 5. INPUT IMPEDANCE vs FREQUENCY 5 1G 10 100k 1M 10M 100M 1G FREQUENCY (Hz) FIGURE 6. DISABLED OUTPUT IMPEDANCE vs FREQUENCY September 19, 2007 ISL28190 ISL28190, ISL28290 ISL28290 Typical Performance Curves (Continued) 0 100 V+ = 5V, 3V -10 OUTPUT IMPEDANCE () -20 10 -30 CMRR (dB) -40 1 -50 -60 -70 V+ = 5V AV = +1 RL = 10k CL = 10pF VCM = 100mVP-P -80 0.1 -90 -100 0.01 100k 1M 100M 10M FREQUENCY (Hz) -110 1k 1G PSRR (dB) -30 -10 VP-P = 1V -20 PSRR- -40 OFF ISOLATION (dB) -20 PSRR+ -50 -60 -70 VP-P = 100mV -30 -40 -50 -60 -80 -90 1k -80 10k 100k 1M FREQUENCY (Hz) 10M 100M VP-P = 10mV 1M 100k 10M 100M 1G FREQUENCY (Hz) FIGURE 9. PSRR vs FREQUENCY FIGURE 10. OFF ISOLATION vs FREQUENCY -20 0.1 -30 V+ = 5V RL = 10k THD + NOISE (%) -40 CROSSTALK (dB) V+ = 5V AV = +1 RL = 10k CL = 10pF -70 10k 100M FREQUENCY (Hz) 0 V+ = 5V AV = +1 RL = 10k CL = 10pF VSOURCE = 100mVP-P 10M 1M FIGURE 8. CMRR vs FREQUENCY FIGURE 7. ENABLED OUTPUT IMPEDANCE vs FREQUENCY -10 100k 10k -50 -60 -70 VP-P = 1V -80 -90 RF = 0, AV = 1 VOUT = 2VP-P 400Hz TO 22kHz FILTER 0.01 0.001 -100 -110 -120 10k 100k 1M 10M FREQUENCY (Hz) 100M FIGURE 11. CHANNEL TO CHANNEL CROSSTALK vs FREQUENCY 6 1G 0.0001 0 2k 4k 6k 8k 10k 12k 14k 16k 18k 20k FREQUENCY (Hz) FIGURE 12. THD+N vs FREQUENCY September 19, 2007 ISL28190 ISL28190, ISL28290 ISL28290 Typical Performance Curves (Continued) 10 V+ = 5V RL = 10k RF = 0, AV = 1 FREQUENCY= 1kHz 400Hz TO 22kHz FILTER 1 THD + NOISE (%) INPUT VOLTAGE NOISE (nV/Hz) 10 0.1 0.01 0.001 0.0001 0 0.5 1.0 1.5 2.0 2.5 VOUT (VP-P) 3.0 3.5 0.1 0.1 4.0 1 10 100 1k 10k 100k FREQUENCY (Hz) FIGURE 14. INPUT REFERRED NOISE VOLTAGE vs FREQUENCY FIGURE 13. THD+N @ 1kHz vs VOUT 1000 5 V+ = 5V AV = +1 RL = 10k CL = 10pF VIN= 1VDC EN INPUT 4 100 VOLTS (V) CURRENT NOISE (pA/Hz) 1 10 3 2 ENABLE DISABLE ENABLE 1 OUTPUT 1 1 0.1 10 100 1k 10k 0 100k -1 0 1 FIGURE 15. INPUT REFERRED NOISE CURRENT vs FREQUENCY 4 3 FIGURE 16. ENABLE/DISABLE TIMING 0.8 0.06 0.6 0.04 VOUT 0.02 VIN 0 -0.02 V+ = ±2.5V AV = +1 RL = 10k VOUT = 100mVP-P -0.04 -0.06 LARGE SIGNAL (V) 0.08 SMALL SIGNAL (V) 2 TIME (µs) FREQUENCY (Hz) 0.4 0 20 40 60 80 100 120 140 160 180 200 TIME (ns) FIGURE 17. SMALL SIGNAL STEP RESPONSE 7 VIN 0.2 0 -0.2 V+ = ±2.5V AV = +2 RF = RG = 499 RL = 10k VOUT = 1VP-P -0.4 -0.6 -0.8 -0.08 VOUT 0 100 200 300 400 500 TIME (ns) 600 700 800 FIGURE 18. LARGE SIGNAL (1V) STEP RESPONSE September 19, 2007 ISL28190 ISL28190, ISL28290 ISL28290 Typical Performance Curves (Continued) 3 6.0 VOUT 2 MAX 1 0 V+ = ±2.5V AV = +2 RF = RG = 499 RL = 10k VOUT = 4.7VP-P -1 -2 0 400 800 5.0 CURRENT (mA) LARGE SIGNAL (V) VIN -3 n = 50 5.5 MEDIAN 4.5 4.0 MIN 3.5 3.0 1200 1600 2.5 -40 2000 -20 0 TIME (ns) FIGURE 19. LARGE SIGNAL (4.7V) STEP RESPONSE 600 20 40 80 100 120 FIGURE 20. SUPPLY CURRENT vs TEMPERATURE, VS = ±2.5V ENABLED, RL = INF -9 n = 50 n = 50 500 MAX 400 -10 MAX 300 200 -11 MEDIAN IBIAS+ (µA) VOS (µV) 60 TEMPERATURE (°C) 100 0 -100 -200 -12 MEDIAN -13 MIN MIN -300 -14 -400 -500 -40 -20 0 20 40 60 80 100 -15 -40 120 -20 0 TEMPERATURE (°C) FIGURE 21. VOS vs TEMPERATURE VS = ±2.5V -9 20 40 60 80 100 120 TEMPERATURE (°C) FIGURE 22. IBIAS+ vs TEMPERATURE VS = ±2.5V 800 n = 50 n = 50 -10 600 MAX 400 IIO (nA) IBIAS- (µA) -11 MEDIAN -12 -13 MAX 200 0 MEDIAN MIN -14 -200 -15 -40 -400 -40 MIN -20 0 20 40 60 80 TEMPERATURE (°C) 100 120 FIGURE 23. IBIAS- vs TEMPERATURE VS = ±2.5V 8 -20 0 20 40 60 80 100 120 TEMPERATURE (°C) FIGURE 24. IIO vs TEMPERATURE VS = ±2.5V September 19, 2007 ISL28190 ISL28190, ISL28290 ISL28290 Typical Performance Curves (Continued) 83 140 81 MEDIAN PSRR (dB) 120 CMRR (dB) 82 MAX 130 110 100 MIN MAX 80 79 MEDIAN 78 90 77 80 76 MIN 75 -40 70 -40 -20 0 20 40 60 80 TEMPERATURE (°C) 100 120 0 20 40 60 80 100 120 FIGURE 26. PSRR vs TEMPERATURE ±1.5V TO ±2.5V 4.982 50 n = 50 4.980 -20 TEMPERATURE (°C) FIGURE 25. CMRR vs TEMPERATURE, VCM = 3.8V, VS = ±2.5V n = 50 45 4.978 MAX 40 4.974 35 4.972 VOUT (mV) 4.976 VOUT (V) n = 50 n = 50 MEDIAN 4.970 MIN 4.968 30 MAX MEDIAN 25 4.966 4.964 MIN 20 15 4.962 -40 -20 0 20 40 60 80 100 10 -40 120 -20 TEMPERATURE (°C) 0 20 40 60 80 100 120 TEMPERATURE (°C) FIGURE 28. NEGATIVE VOUT vs TEMPERATURE RL = 1k, VS = ±2.5V FIGURE 27. POSITIVE VOUT vs TEMPERATURE RL = 1k, VS = ±2.5V Pin Descriptions ISL28190 ISL28190 ISL28190 ISL28190 ISL28290 ISL28290 (6 Ld SOT-23) (6 Ld TDFN) (10 Ld MSOP) 4 ISL28290 ISL28290 (10 Ld TQFN) PIN NAME 1 (A) 7 (B) ININ- (A) IN- (B) 1 2 (A) 8 (B) FUNCTION EQUIVALENT CIRCUIT Inverting input V+ IN- IN+ VCircuit 1 3 (A) 7 (B) 3 2 2 (A) 6 (B) IN+ IN+ (B) IN+ (B) 4 3 V- 3 2 9 Non-inverting input (See circuit 1) Negative supply September 19, 2007 ISL28190 ISL28190, ISL28290 ISL28290 Pin Descriptions (Continued) ISL28190 ISL28190 ISL28190 ISL28190 ISL28290 ISL28290 (6 Ld SOT-23) (6 Ld TDFN) (10 Ld MSOP) 1 ISL28290 ISL28290 (10 Ld TQFN) PIN NAME 10 (A) 8 (B) OUT OUT (A) OUT (B) 4 1 (A) 9 (B) FUNCTION EQUIVALENT CIRCUIT Output V+ OUT VCircuit 2 6 6 5 10 9 V+ 5 5 (A) 6 (B) 4 (A) 5 (B) EN EN (A) EN (B) Positive supply Enable BAR pin internal pull-down; Logic "1" selects the disabled state; Logic "0" selects the enabled state. V+ EN VCircuit 3 Applications Information Product Description The ISL28190 ISL28190 and ISL28290 ISL28290 are voltage feedback operational amplifiers designed for communication and imaging applications requiring low distortion, very low voltage and current noise. Both parts feature high bandwidth while drawing moderately low supply current. The ISL28190 ISL28190 and ISL28290 ISL28290 use a classical voltage-feedback topology which allows them to be used in a variety of applications where current-feedback amplifiers are not appropriate because of restrictions placed upon the feedback element used with the amplifier. Enable/Power-Down The ISL28190 ISL28190 and ISL28290 ISL28290 amplifiers are disabled by applying a voltage greater than 2V to the EN pin, with respect to the V- pin. In this condition, the output(s) will be in a high impedance state and the amplifier(s) current will be reduced to 13µA/Amp. By disabling the part, multiple parts can be connected together as a MUX. The outputs are tied together in parallel and a channel can be selected by the EN pin. The EN pin also has an internal pull-down. If left open, the EN pin will pull to the negative rail and the device will be enabled by default. Input Protection All input terminals have internal ESD protection diodes to both positive and negative supply rails, limiting the input voltage to within one diode beyond the supply rails. Both parts have additional back-to-back diodes across the input terminals (as shown in Figure 29). In pulse applications where the input Slew Rate exceeds the Slew Rate of the amplifier, the possibility exists for the input protection diodes to become forward biased. This can cause excessive input current and distortion at the outputs. If overdriving the inputs is necessary, the external input current must never exceed 5mA. An 10 external series resistor may be used to limit the current as shown in Figure 29. R + FIGURE 29. LIMITING THE INPUT CURRENT TO LESS THAN 5mA Using Only One Channel The ISL28290 ISL28290 is a Dual channel op-amp. If the application only requires one channel when using the ISL28290 ISL28290, the user must configure the unused channel to prevent it from oscillating. Oscillation can occur if the input and output pins are floating. This will result in higher than expected supply currents and possible noise injection into the channel being used. The proper way to prevent this oscillation is to short the output to the negative input and ground the positive input (as shown in Figure 30). + FIGURE 30. PREVENTING OSCILLATIONS IN UNUSED CHANNELS Power Supply Bypassing and Printed Circuit Board Layout As with any high frequency device, good printed circuit board layout is necessary for optimum performance. Low impedance ground plane construction is essential. Surface mount components are recommended, but if leaded components are used, lead lengths should be as short as possible. The power supply pins must be well bypassed to September 19, 2007 ISL28190 ISL28190, ISL28290 ISL28290 reduce the risk of oscillation. The combination of a 4.7µF tantalum capacitor in parallel with a 0.01µF capacitor has been shown to work well when placed at each supply pin. to determine if power supply voltages, load conditions, or package type need to be modified to remain in the safe operating area. These parameters are related as follows: For good AC performance, parasitic capacitance should be kept to a minimum, especially at the inverting input. When ground plane construction is used, it should be removed from the area near the inverting input to minimize any stray capacitance at that node. Carbon or Metal-Film resistors are acceptable with the Metal-Film resistors giving slightly less peaking and bandwidth because of additional series inductance. Use of sockets, particularly for the SO package, should be avoided if possible. Sockets add parasitic inductance and capacitance which will result in additional peaking and overshoot. T JMAX = T MAX + ( JA xPD MAXTOTAL ) (EQ. 1) where: · PDMAXTOTAL is the sum of the maximum power dissipation of each amplifier in the package (PDMAX) · PDMAX for each amplifier can be calculated as follows: V OUTMAX PD MAX = 2*V S × I SMAX + ( V S - V OUTMAX ) × -R L Current Limiting whereTMAX = Maximum ambient temperature The ISL28190 ISL28190 and ISL28290 ISL28290 have no internal currentlimiting circuitry. If the output is shorted, it is possible to exceed the Absolute Maximum Rating for output current or power dissipation, potentially resulting in the destruction of the device. This is why output short circuit current is specified and tested with RL = 10. (EQ. 2) · JA = Thermal resistance of the package · PDMAX = Maximum power dissipation of 1 amplifier · VS = Supply voltage · IMAX = Maximum supply current of 1 amplifier · VOUTMAX = Maximum output voltage swing of the application Power Dissipation It is possible to exceed the +125°C maximum junction temperatures under certain load and power-supply conditions. It is therefore important to calculate the maximum junction temperature (TJMAX) for all applications 11 · RL = Load resistance September 19, 2007 ISL28190 ISL28190, ISL28290 ISL28290 SOT-23 Package Family MDP0038 MDP0038 SOT-23 PACKAGE FAMILY e1 MILLIMETERS D SYMBOL A 6 SOT23-5 SOT23-6 TOLERANCE A E1 2 3 MAX 0.10 ±0.05 1.14 1.14 ±0.15 b E 1.45 0.10 A2 4 1.45 A1 N 0.40 0.40 ±0.05 c 1 2X 2 3 0.20 C 5 2X e 0.20 M C A-B D B b NX 0.14 0.14 ±0.06 D 0.15 C D 2.90 2.90 Basic E 2.80 2.80 Basic E1 1.60 1.60 Basic e 0.95 0.95 Basic e1 1.90 1.90 Basic L 1 ±0.10 0.60 Reference 5 6 Reference Rev. F 2/07 3 NOTES: D 2X 0.45 0.60 N 0.15 C A-B 0.45 L1 1. Plastic or metal protrusions of 0.25mm maximum per side are not included. C A2 SEATING PLANE 2. Plastic interlead protrusions of 0.25mm maximum per side are not included. 3. This dimension is measured at Datum Plane "H". A1 0.10 C 4. Dimensioning and tolerancing per ASME Y14.5M-1994 5M-1994. 5. Index area - Pin #1 I.D. will be located within the indicated zone (SOT23-6 only). NX 6. SOT23-5 version has no center lead (shown as a dashed line). (L1) H A GAUGE PLANE c L 12 0.25 0° +3° -0° September 19, 2007 ISL28190 ISL28190, ISL28290 ISL28290 Ultra Thin Dual Flat No-Lead Plastic Package (UTDFN) A A E 6 B L6.1.6x1.6A 6 LEAD ULTRA THIN DUAL FLAT NO-LEAD PLASTIC PACKAGE 4 MILLIMETERS SYMBOL 2X 3 MAX NOTES 0.45 0.50 0.55 - - - 0.05 - 0.127 REF A3 0.15 C A1 - L CO.2 0.25 - 1.55 1.60 1.65 4 0.40 0.45 0.50 - E 6 0.20 1.55 1.60 1.65 4 E2 4 0.15 D2 e 1.00 REF b D TOP VIEW D2 NOMINAL A1 1 MIN A D PIN 1 REFERENCE 2X 0.15 C 0.95 1.00 1.05 - 0.50 BSC e DAP SIZE 1.30 x 0.76 L 3 1 b 6X 0.10 M C A B E2 0.25 0.30 0.35 Rev. 1 6/06 NOTES: 1. Dimensions are in mm. Angles in degrees. BOTTOM VIEW 2. Coplanarity applies to the exposed pad as well as the terminals. Coplanarity shall not exceed 0.08mm. DETAIL A 0.10 C 6X 3. Warpage shall not exceed 0.10mm. 0.08 C 4. Package length/package width are considered as special characteristics. 5. JEDEC Reference MO-229 MO-229. A3 SIDE VIEW C SEATING PLANE 6. For additional information, to assist with the PCB Land Pattern Design effort, see Intersil Technical Brief TB389 TB389. 0.127±0.008 0.127 +0.058 -0.008 TERMINAL THICKNESS A1 DETAIL A 0.25 0.50 1.00 0.45 1.00 2.00 0.30 1.25 LAND PATTERN 13 6 September 19, 2007 ISL28190 ISL28190, ISL28290 ISL28290 Ultra Thin Quad Flat No-Lead Plastic Package (UTQFN) D 6 INDEX AREA A L10.1.8x1.4A B N 10 LEAD ULTRA THIN QUAD FLAT NO-LEAD PLASTIC PACKAGE MILLIMETERS E SYMBOL 2X MIN NOMINAL MAX NOTES 0.10 C 2 0.10 C TOP VIEW 0.45 0.50 0.55 - A1 1 2X A - - 0.05 - A3 0.127 REF - b A 0.05 C 0.25 5 1.75 1.80 1.85 - E C 0.20 D 0.10 C 0.15 1.35 1.40 1.45 - e SEATING PLANE A1 0.40 BSC - L 0.35 0.40 0.45 L1 SIDE VIEW 0.45 0.50 - 0.55 - N PIN #1 ID NX L 1 NX b 5 10X 0.10 M C A B 0.05 M C 2 L1 5 (DATUM B) 7 2 Nd (DATUM A) 10 2 3 Ne 3 3 0 - 12 4 Rev. 3 6/06 NOTES: 1. Dimensioning and tolerancing conform to ASME Y14.5-1994. 2. N is the number of terminals. e 3. Nd and Ne refer to the number of terminals on D and E side, respectively. BOTTOM VIEW 4. All dimensions are in millimeters. Angles are in degrees. NX (b) 5. Dimension b applies to the metallized terminal and is measured between 0.15mm and 0.30mm from the terminal tip. C L (A1) 5 L 6. The configuration of the pin #1 identifier is optional, but must be located within the zone indicated. The pin #1 identifier may be either a mold or mark feature. 7. Maximum package warpage is 0.05mm. SECTION "C-C" e 8. Maximum allowable burrs is 0.076mm in all directions. TERMINAL TIP C C 9. JEDEC Reference MO-255 MO-255. 10. For additional information, to assist with the PCB Land Pattern Design effort, see Intersil Technical Brief TB389 TB389. 2.20 1.00 0.60 1.00 0.50 1.80 0.40 0.20 0.20 0.40 10 LAND PATTERN 14 September 19, 2007 ISL28190 ISL28190, ISL28290 ISL28290 Mini SO Package Family (MSOP) 0.25 M C A B MDP0043 MDP0043 A D MINI SO PACKAGE FAMILY (N/2)+1 N MILLIMETERS SYMBOL - 0.86 0.86 ±0.09 - 0.33 0.23 +0.07/-0.08 - 0.18 0.18 ±0.05 - 3.00 3.00 ±0.10 1, 3 4.90 4.90 ±0.15 - 3.00 3.00 ±0.10 2, 3 0.65 0.50 Basic - 0.55 0.55 ±0.15 - L1 0.95 0.95 Basic - N 0.10 C N LEADS ±0.05 L SEATING PLANE 0.10 e H 0.10 E1 e - E C Max. D (N/2) 1.10 c 1 1.10 b B NOTES A2 PIN #1 I.D. TOLERANCE A1 E1 MSOP10 MSOP10 A E MSOP8 8 10 Reference - 0.08 M C A B b Rev. D 2/07 NOTES: 1. Plastic or metal protrusions of 0.15mm maximum per side are not included. L1 2. Plastic interlead protrusions of 0.25mm maximum per side are not included. A 3. Dimensions "D" and "E1" are measured at Datum Plane "H". 4. Dimensioning and tolerancing per ASME Y14.5M-1994 5M-1994. c SEE DETAIL "X" A2 GAUGE PLANE A1 L 0.25 3° ±3° DETAIL X All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 ISO9000 quality systems. Intersil Corporation's quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 15 September 19, 2007