19-0942; Rev 2; 4/08 Single/Dual/Triple/Quad Operational Amplifiers The ICL761X–ICL764X family of monolithic CMOS op amps combine ultra-low input current with low-power operation over a wide supply voltage range. With pinselectable quiescent currents of 10µA, 100µA, or 1000µA per amplifier, these op amps will operate from ±1V to ±8V power supplies, or from single supplies from 2V to 16V. The CMOS outputs swing to within millivolts of the supply voltages. The ultra-low bias current of 1pA makes this family of op amps ideal for long time constant integrators, picoammeters, low droop rate sample/hold amplifiers and other applications where input bias and offset currents are critical. A low noise current of 0.01pA√Hz and an input impedance of 1012Ω ensure optimum performance with very high source impedances in such applications as pH meters and photodiode amplifiers. Features o Pin-for-Pin Second Source o 1pA Typical Bias Current—4nA (max) at +125°C o ±1V to ±8V Wide Supply Voltage Range o Industry-Standard Pinouts o Programmable Quiescent Currents of 10µA, 100µA, and 1000µA o Monolithic, Low-Power CMOS Design Ordering Information Applications Battery-Powered Instruments Low-Leakage Amplifiers ICL76XX Long-Time Constant Integrators Low-Frequency Active Filters Hearing Aids and Microphone Amplifiers Low Droop Rate Sample/Hold Amplifiers Picoammeters Pin Configuration TOP VIEW SINGLES—ICL7611/12/14/16 TO—99 M N OP VOS SELECTION TEMP RANGE PKG CODE A = 2mV C = 0°C to 70°C TV= 8-Pin TO99 B = 5mV E = -40°C to +85°C PA = 8-Pin Plastic Dip C = 10mV M = -55°C to +125°C SA = 8-Pin Small SO D = 15mV JD = 14-Pin CERDIP E = 20mV PD = 14-Pin Plastic Dip (IOSET)* OFFSET 8 1 7 -IN 2 +IN 3 V+ 6 OUTPUT 4 5 OFFSET SD = 14-Pin Small SO JE = 16-Pin CERDIP V*PIN 7 CONNECTED TO CASE PE = 16-Pin Plastic Dip 8-PIN DIP OFFSET 1 8 (IOSET)* IN 2 7 V+ +IN 3 6 OUT V- 4 5 OFFSET *EXTERNAL COMPENSATION (ICL7614) SE = 16-Pin Small SO WE – 16-Pin Wide SO Typical Operating Circuit appears at end of data sheet. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 1 ICL761X–ICL764X General Description Ordering Information (continued) X X ICL7642 X ICL7641 ICL7631 X ICL7632 ICL7622 Externally Compensated ICL7621 X ICL7616 X ICL7614 ICL7612 Compensated ICL7611 ICL761X–ICL764X Single/Dual/Triple/Quad Operational Amplifiers X X X Extended CMVR X Offset null capability X X Programmable IQ X X X X X X X X X Fixed IQ-10µA Fixed IQ100µA X X X X Fixed IQ-1mA X Ordering Information (Single/Dual) PART TEMP RANGE PIN-PACKAGE PART TEMP RANGE PIN-PACKAGE ICL761XACPA 0°C to +70°C 8 Plastic Dip ICL7621BCSA 0°C to +70°C 8 Slim SO ICL761XACSA 0°C to +70°C 8 Slim SO ICL7621BCTV 0°C to +70°C TO-99 Metal Can ICL761XACTV 0°C to +70°C TO-99 Metal Can ICL7621BMTV -55°C to +125°C TO-99 Metal Can ICL761XAMTV -55°C to +125°C TO-99 Metal Can ICL7621DCPA 0°C to +70°C 8 Plastic Dip ICL761XBCPA 0°C to +70°C 8 Plastic Dip ICL7621DCSA 0°C to +70°C 8 Slim SO ICL761XBCSA 0°C to +70°C 8 Slim SO ICL7621DCTV 0°C to +70°C TO-99 Metal Can ICL761XBCTV 0°C to +70°C TO-99 Metal Can ICL7622ACPD 0°C to +70°C 14 Plastic Dip ICL761XBESA -40°C to +85°C 8 Slim SO ICL7622ACSD 0°C to +70°C 14 Slim SO ICL761XBMTV -55°C to +125°C TO-99 Metal Can ICL7622ACJD 0°C to +70°C 14 CERDIP ICL761XDCPA 0°C to +70°C 8 Plastic Dip ICL7622AMJD -55°C to +125°C 0°C to +70°C 14 Plastic Dip 14 CERDIP ICL761XDCSA 0°C to +70°C 8 Slim SO ICL7622BCPD ICL761XDCTV 0°C to +70°C TO-99 Metal Can ICL7622BCSA 0°C to +70°C 14 Slim SO ICL761XDESA -40°C to +85°C 8 Slim SO ICL7622BCJD 0°C to +70°C 14 CERDIP -55°C to +125°C 14 CERDIP ICL7621ACPA 0°C to +70°C 8 Plastic Dip ICL7622BMJD ICL7621ACSA 0°C to +70°C 8 Slim SO ICL7622DCPD 0°C to +70°C ICL7621ACTV 0°C to +70°C TO-99 Metal Can ICL7622DCSD 0°C to +70°C 14 Slim SO TO-99 Metal Can ICL7622DCJD 0°C to +70°C 14 CERDIP ICL7621AMTV -55°C to +125°C ICL7621BCPA 0°C to +70°C 8 Plastic Dip Note: X above is replaced by: 1, 2, 4, 8. 2 _______________________________________________________________________________________ 14 Plastic Dip Single/Dual/Triple/Quad Operational Amplifiers TOP VIEW SINGLES—ICL7611/12/14/16 TO—99 DUALS—ICL7621/22 TO—99 (IOSET)* V+ OFFSET 8 1 7 -IN 2 +IN 3 V+ OUTA 6 OUTPUT 4 8 1 -INA 2 5 OFFSET 14 LEAD OUTB 7 6 -INB +INA 3 1 +INA 2 V- + 8 (IOSET)* OUTA 1 8 2 V+ OFFSETA 3 12 OUTA V- 4 11 N.C. OFFSETB 5 10 OUTB V+ B + A - -IN 13 - 8 LEAD 8 LEAD 1 OFFSETA A *PIN 7 CONNECTED TO CASE OFFSET 14 5 +IN B 4 V- -INA 7 V+ -INA + 2 7 OUTB - +INB 6 9 V+ -INB 7 8 OFFSETB B + +IN 3 6 OUT V- 4 5 OFFSET - +INA 3 6 -INB V- 4 5 +INB NOTE: PINS 9 & 13 ARE INTERNALLY CONNECTED *EXTERNAL COMPENSATION (ICL7614) _______________________________________________________________________________________ 3 ICL761X–ICL764X Pin Configurations ICL761X–ICL764X Single/Dual/Triple/Quad Operational Amplifiers ABSOLUTE MAXIMUM RATINGS (Single/Dual) Total Supply Voltage (V+ to V-) ...........................................+18V Input Voltage ........................................(V+ + 0.3V) to (V- - 0.3V) Differential Input Voltage (Note 1)......±(V+ + 0.3V) to (V- - 0.3V) Duration of Output Short Circuit (Note 2) ......................Unlimited Continuous Power Dissipation (TA = +25°C) TO-99 Metal Can (derate 2mW/°C above +25°C) .......250mW 8-Pin Minidip (derate 2mW/°C above +25°C) ..............250mW 14-Pin Plastic (derate 3mW/°C above +25°C) .............375mW 14-Pin CERDIP (derate 4mW/°C above +25°C)...........500mW 16-Pin Plastic (derate 3mW/°C above +25°C) .............375mW 16-Pin CERDIP (derate 4mW/°C above +25°C)...........500mW Operating Temperature Ranges: M Series .............................................................-55°C to +125°C E Series................................................................-40°C to +85°C C Series .................................................................-0°C to +70°C Storage Temperature Range ............................-55°C to +150°C Lead Temperature (soldering, 10s) ................................+300°C 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. Note 1: Long-term offset voltage stability will be degraded if large input differential voltages are applied for long periods of time. Note 2: The outputs may be shorted to ground or to either supply for VSUPP ≤ 10V. Care must be taken to insure that the dissipation rating is not exceeded. ELECTRICAL CHARACTERISTICS (Single/Dual) (VSUPP = ±1.0V, IQ = 10µA, TA = +25°C, unless otherwise noted.) PARAMETER Input Offset Voltage Temperature Coefficient of VOS Input Offset Current SYMBOL VOS ΔVOS/ΔT IOS CONDITIONS ICL76XXA MIN TYP ICL76XXB MAX MIN TYP MAX RS ≤ 100kΩ, TA = +25°C 2 5 RS ≤ 100kΩ, TMIN ≤ TA ≤ TMAX 3 7 UNITS mV RS ≤ 100kΩ 10 TA = +25°C 0.5 0°C ≤ TA ≤ +70°C 15 30 0.5 300 TA = +25°C 1.0 µV/°C 30 300 50 1.0 50 pA Input Bias Current IBIAS Common-Mode Voltage Range (Except ICL7612/ ICL7616) VCMR -0.4 +0.6 -0.4 +0.6 V Extended CommonMode Voltage Range (ICL7612 Only) VCMR -1.1 +0.6 -1.1 +0.6 V Extended CommonMode Voltage Range (ICL7616 Only) VCMR -1.3 -0.3 -1.3 -0.3 V Output Voltage Swing VOUT 4 0°C ≤ TA ≤ +70°C IQ = 10µA 500 500 RL = 1MΩ, TA = +25°C ±0.98 ±0.98 RL = 1MΩ, 0°C ≤ TA ≤ +70°C ±0.96 ±0.96 _______________________________________________________________________________________ pA V Single/Dual/Triple/Quad Operational Amplifiers (VSUPP = ±1.0V, IQ = 10µA, TA = +25°C, unless otherwise noted.) PARAMETER SYMBOL ICL76XXA CONDITIONS MIN TYP ICL76XXB MAX MIN TYP MAX UNITS VO = ±0.1V, RL = 1MΩ, TA = +25°C 90 VO = ±0.1V, RL = 1MΩ, 0°C ≤ TA ≤ +70°C 80 80 GBW 0.044 0.044 MHz Input Resistance RIN 1012 1012 Ω Common-Mode Rejection Ratio CMRR RS ≤ 100kΩ 80 80 dB Power-Supply Rejection Ratio PSRR RS ≤ 100kΩ 80 80 dB Large-Signal Voltage Gain Unity-Gain Bandwidth AVOL 90 dB Input-Referred Noise Voltage en RS = 100Ω, f = 1kHz 100 100 nV/√Hz Input-Referred Noise Current in RS = 100Ω, f = 1kHz 0.01 0.01 pA/√Hz Supply Current (Per Amplifier) ISUPP No signal, no load 6 15 6 15 µA Slew Rate SR AVOL = 1, CL = 100pF, VIN = 0.2VP-P, RL = 1MΩ 0.016 0.016 V/µs Rise Time tr VIN = 50mV, CL = 100pF, RL = 1MΩ 20 20 µs VIN = 50mV, CL = 100pF, RL = 1MΩ 5 5 % Overshoot Factor ELECTRICAL CHARACTERISTICS (Single/Dual) (VSUPP = ±5.0V, TA = +25°C, unless otherwise noted.) PARAMETER Input Offset Voltage Temperature Coefficient of VOS Input Offset Current SYMBOL VOS ΔVOS/ΔT IOS CONDITIONS ICL76XXA MIN TYP ICL76XXB MAX MIN TYP ICL76XXD MAX MIN TYP MAX RS ≤ 100kΩ, TA = +25°C 2 5 15 RS ≤ 100kΩ, TMIN ≤ TA ≤ TMAX 3 7 20 UNITS mV RS ≤ 100kΩ 10 TA = +25°C 0.5 15 30 0.5 25 30 0.5 µV/°C 30 C: 0°C ≤ TA ≤ +70°C 300 300 300 E: -40°C ≤ TA ≤ +85°C 800 800 800 M: -55°C≤ TA ≤ +125°C 800 800 800 pA _______________________________________________________________________________________ 5 ICL761X–ICL764X ELECTRICAL CHARACTERISTICS (Single/Dual) (continued) ICL761X–ICL764X Single/Dual/Triple/Quad Operational Amplifiers ELECTRICAL CHARACTERISTICS (Single/Dual) (continued) (VSUPP = ±5.0V, TA = +25°C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS ICL76XXA MIN TA = +25°C Input Bias Current Common-Mode Voltage Range (Except ICL7612/ ICL7616) Extended Common-Mode Voltage Range (ICL7612 Only) IBIAS 1.0 50 MIN TYP MAX 1.0 50 E: -40°C ≤ TA ≤ +85°C 4000 4000 4000 M: -55°C≤ TA ≤ +125°C 4000 4000 4000 IQ = 100µA (Note 3) IQ = 100µA IQ = 1mA IQ = 100µA IQ = 1mA 6 MAX 400 IQ = 10µA VCMR 50 ICL76XXD TYP 400 IQ = 10µA Extended Common-Mode Voltage Range (ICL7616 Only) 1.0 MIN 400 IQ = 1mA (Note 3) VCMR MAX C: 0°C ≤ TA ≤ +70°C IQ = 10µA (Note 3) VCMR ICL76XXB TYP +4.4 -4.0 +4.2 -4.0 +3.7 -3.7 ±5.3 +4.4 -4.0 +4.2 -4.0 +3.7 -3.7 ±5.3 +4.4 -4.0 +4.2 -4.0 +3.7 -3.7 ±5.3 +5.3 -5.1 +5.3 -4.5 -5.3 +5.3 -5.1 +5.3 -4.5 -5.3 +5.3 -5.1 +5.3 -4.5 -5.3 +3.7 +3.7 +3.5 -5.1 -5.1 -5.1 +3.0 +3.0 +2.7 -4.5 -4.5 -4.5 +2.0 +2.0 +1.7 _______________________________________________________________________________________ UNITS pA V V V Single/Dual/Triple/Quad Operational Amplifiers (VSUPP = ±5.0V, TA = +25°C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS IQ = 10µA, RL = 1MΩ (Note 3) Output Voltage Swing VOUT IQ = 100µA, RL = 100kΩ IQ = 1mA, RL = 10kΩ (Note 3) ICL76XXA MIN TYP MAX ICL76XXB MIN TYP ICL76XXD MAX MIN TA = +25°C ±4.9 ±4.9 ±4.9 C: 0°C ≤ TA ≤ +70°C ±4.8 ±4.8 ±4.8 E: -40°C ≤ TA ≤ +85°C ±4.7 ±4.7 ±4.7 M: -55°C ≤ TA ≤ +125°C ±4.7 ±4.7 ±4.7 TA = +25°C ±4.9 ±4.9 ±4.9 C: 0°C ≤ TA ≤ +70°C ±4.8 ±4.8 ±4.8 TYP MAX UNITS V E: -40°C ≤ TA ≤ +85°C ±4.5 ±4.5 ±4.5 M: -55°C ≤ TA ≤ +125°C ±4.5 ±4.5 ±4.5 TA = +25°C ±4.5 ±4.5 ±4.5 C: 0°C ≤ TA ≤ +70°C ±4.3 ±4.3 ±4.3 E: -40°C ≤ TA ≤ +85°C ±4.0 ±4.0 ±4.0 M: -55°C ≤ TA ≤ +125°C ±4.0 ±4.0 ±4.0 _______________________________________________________________________________________ 7 ICL761X–ICL764X ELECTRICAL CHARACTERISTICS (Single/Dual) (continued) ICL761X–ICL764X Single/Dual/Triple/Quad Operational Amplifiers ELECTRICAL CHARACTERISTICS (Single/Dual) (continued) (VSUPP = ±5.0V, TA = +25°C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS VO = ±4.0V RL = 1MΩ, IQ = 10µA Large-Signal Voltage Gain AVOL VO = ±4.0V, RL = 100kΩ, IQ = 100µA VO = ±4.0V, RL = 10kΩ, IQ = 1mA (Note 3) 8 ICL76XXA MIN TYP 80 104 ICL76XXD TYP TA = +25°C 86 104 C: 0°C ≤ TA ≤ +70°C 80 75 75 E: -40°C ≤ TA ≤ +85°C 74 68 68 M: -55°C ≤ TA ≤ +125°C 74 68 68 TA = +25°C 86 C: 0°C ≤ TA ≤ +70°C 80 102 MAX ICL76XXB MIN 80 102 75 MAX MIN TYP 80 104 80 MAX UNITS 102 75 dB E: -40°C ≤ TA ≤ +85°C 74 68 68 M: -55°C ≤ TA ≤ +125°C 74 68 68 TA = +25°C 80 C: 0°C ≤ TA ≤ +70°C 76 72 72 E: -40°C ≤ TA ≤ +85°C 72 68 68 M: -55°C ≤ TA ≤ +125°C 72 68 68 83 76 83 76 83 _______________________________________________________________________________________ Single/Dual/Triple/Quad Operational Amplifiers (VSUPP = ±5.0V, TA = +25°C, unless otherwise noted.) PARAMETER Unity-Gain Bandwidth Input Resistance Common-Mode Rejection Ratio Power-Supply Rejection Ratio SYMBOL GBW CONDITIONS ICL76XXA MIN PSRR ICL76XXB MAX MIN TYP ICL76XXD MAX MIN TYP IQ = 10µA (Note 3) 0.044 0.044 0.044 IQ = 100µA 0.48 0.48 0.48 IQ = 1mA (Note 3) 1.4 1.4 1.4 1012 1012 1012 RIN CMRR TYP RS ≤ 100kΩ, IQ = 10µA (Note 3) 76 96 70 96 70 96 RS ≤ 100kΩ, IQ = 100µA 76 91 70 91 70 91 RS ≤ 100kΩ, IQ = 1mA (Note 3) 66 87 60 87 60 87 RS ≤ 100kΩ, IQ = 10µA (Note 3) 80 94 80 94 80 94 RS ≤ 100kΩ, IQ = 100µA 80 86 80 86 80 86 RS ≤ 100kΩ, IQ = 1mA (Note 3) 70 77 70 77 70 77 MAX UNITS MHz Ω dB dB Input-Referred Noise Voltage en RS = 100Ω, f = 1kHz 100 100 100 nV/√Hz Input-Referred Noise Current in RS = 100Ω, f = 1kHz 0.01 0.01 0.01 pA/√Hz Supply Current (Per Amplifier) Channel Separation ISUPP No signal, no load IQ = 10µA (Note 3) 0.01 0.02 0.01 0.02 0.01 0.02 IQ = 100µA 0.1 0.25 0.1 0.25 0.1 0.25 IQ = 1mA (Note 3) 1.0 2.5 1.0 2.5 1.0 2.5 VO1 / VO2 AVOL = 100 120 120 120 mA dB _______________________________________________________________________________________ 9 ICL761X–ICL764X ELECTRICAL CHARACTERISTICS (Single/Dual) (continued) ICL761X–ICL764X Single/Dual/Triple/Quad Operational Amplifiers ELECTRICAL CHARACTERISTICS (Single/Dual) (continued) (VSUPP = ±5.0V, TA = +25°C, unless otherwise noted.) PARAMETER Slew Rate (Note 4) Rise Time (Note 4) Overshoot Factor (Note 4) SYMBOL SR tr CONDITIONS AVOL = 1, CL = 100pF, VIN = 8VP-P VIN = 50mV, CL = 100pF VIN = 50mV, CL = 100pF ICL76XXA MIN TYP MAX ICL76XXB MIN TYP ICL76XXD MAX MIN TYP IQ = 10µA (Note 3), RL = 1MΩ 0.016 0.016 0.016 IQ = 100µA, RL = 100kΩ 0.16 0.16 0.16 IQ = 1mA (Note 3), RL = 10kΩ 1.6 1.6 1.6 IQ = 10µA (Note 3), RL = 1MΩ 20 20 20 IQ = 100µA, RL = 100kΩ 2 2 2 IQ = 1mA (Note 3), RL = 10kΩ 0.9 0.9 0.9 IQ = 10µA (Note 3), RL = 1MΩ 5 5 5 IQ = 100µA, RL = 100kΩ 10 10 10 IQ = 1mA (Note 3), RL = 10kΩ 40 40 40 Note 3: ICL7611, ICL7612, ICL7616 only. Note 4: ICL7814; 39pF from pin 6 to pin 8. 10 ______________________________________________________________________________________ MAX UNITS V/µs µs % Single/Dual/Triple/Quad Operational Amplifiers PART TEMP RANGE PART PIN-PACKAGE TEMP RANGE PIN-PACKAGE ICL763XBCPE 0°C to +70°C 16 Plastic Dip ICL764XBCPD 0°C to +70°C 14 Plastic Dip ICL763XBCSE 0°C to +70°C 16 Slim SO ICL764XBCWE 0°C to +70°C 16 Wide SO ICL763XCCPE 0°C to +70°C 16 Plastic Dip ICL764XCCPD 0°C to +70°C 14 Plastic Dip ICL763XCCSE 0°C to +70°C 16 Slim SO ICL764XCCWE 0°C to +70°C 16 Wide SO ICL763XECPE 0°C to +70°C 16 Plastic Dip ICL764XECPD 0°C to +70°C 14 Plastic Dip ICL763XECSE 0°C to +70°C 16 Slim SO ICL764XECWE 0°C to +70°C 16 Wide SO ICL763XBCJE 0°C to +70°C 16 CERDIP ICL764XBCJD 0°C to +70°C 14 CERDIP ICL763XCCJE 0°C to +70°C 16 CERDIP ICL764XCCJD 0°C to +70°C 14 CERDIP ICL763XECJE 0°C to +70°C 16 CERDIP ICL764XECJD 0°C to +70°C 14 CERDIP ICL763XBMJE -55°C to +125°C 16 CERDIP ICL764XBMJD -55°C to +125°C 14 CERDIP ICL763XCMJE -55°C to +125°C 16 CERDIP ICL764XCMJD -55°C to +125°C 14 CERDIP Note: X above is replaced by 1, 2. Pin Configurations TOP VIEW ICL7631/32 16 LEAD N.C. 1 ICL7641/42 16 LEAD WIDE S.O. 16 IOC SET OUTA 1 16 - -INA 2 ICL7641/42 14 LEAD A + + D OUTD OUTA 1 - - A + + D 16 OUTD - 15 V+ -INA 2 15 -IND -INA 2 15 -IND 14 OUTA +INA 3 14 +IND +INA 3 14 +IND 13 +INB V+ 4 13 V- V+ 4 13 V- INB 5 12 +INC INB 5 12 +INC -INB 6 11 -INC -INB 6 11 -INC 10 OUTC +INA 3 OUTB 4 + A + B - V+ 5 12 -INB SET IOC 6 11 IOB SET - B + + C - - B + + C - -INC 7 +INC 8 + C 10 OUT 9 V- OUTB 7 10 OUTC N.C. 8 9 N.C. OUTB 7 NOTE: PINS 5 & 15 ARE INTERNALLY CONNECTED ______________________________________________________________________________________ 11 ICL761X–ICL764X Ordering Information (Triple/Quad) ICL761X–ICL764X Single/Dual/Triple/Quad Operational Amplifiers ABSOLUTE MAXIMUM RATINGS (Triple/Quad) Total Supply Voltage (V+ to V-) ...........................................+18V Input Voltage ........................................(V+ + 0.3V) to (V- - 0.3V) Differential Input Voltage (Note 5).......±|(V+ + 0.3V) - (V- - 0.3V) Duration of Output Short Circuit (Note 6) ......................Unlimited Continuous Power Dissipation (TA = +25°C) TO-99 Metal Can (derate 2mW/°C above +25°C) .......250mW 8-Pin Minidip (derate 2mW/°C above +25°C) ..............250mW 14-Pin Plastic (derate 3mW/°C above +25°C) .............375mW 14-Pin CERDIP (derate 4mW/°C above +25°C)...........500mW 16-Pin Plastic (derate 3mW/°C above +25°C) .............375mW 16-Pin CERDIP (derate 4mW/°C above +25°C)...........500mW Operating Temperature Ranges: M Series .............................................................-55°C to +125°C E Series................................................................-40°C to +85°C C Series .................................................................-0°C to +70°C Storage Temperature Range ............................-55°C to +150°C Lead Temperature (soldering, 10s) ................................+300°C 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. Note 5: Long-term offset voltage stability will be degraded if large input differential voltages are applied for long periods of time. Note 6: The outputs may be shorted to ground or to either supply for VSUPP ≤ 10V. Care must be taken to insure that the dissipation rating is not exceeded. ELECTRICAL CHARACTERISTICS (Triple/Quad) (VSUPP = ±1.0V, IQ = 10µA, TA = +25°C, unless otherwise noted.) (Specifications apply to ICL7631/7632/7642 only.) PARAMETER Input Offset Voltage Temperature Coefficient of VOS Input Offset Current SYMBOL VOS ΔVOS/ΔT IOS Input Bias Current IBIAS Common-Mode Voltage Range VCMR CONDITIONS ICL76XXB MIN TYP ICL76XXC MAX RS ≤ 100kΩ, TA = +25°C 5 RS ≤ 100kΩ, TMIN ≤ TA ≤ TMAX 7 MIN TYP MAX UNITS 10 mV RS ≤ 100kΩ 15 TA = +25°C 0.5 0°C ≤ TA ≤ +70°C 12 20 30 0.5 300 TA = +25°C 1.0 0°C ≤ TA ≤ +70°C 50 +0.6 30 300 1.0 500 -0.4 µV/°C 50 500 -0.4 +0.6 pA pA V RL = 1MΩ, TA = +25°C ±0.98 ±0.98 RL = 1MΩ, 0°C ≤ TA ≤ +70°C ±0.96 ±0.96 VO = ±0.1V, RL = 1MΩ, TA = +25°C 90 90 VO = ±0.1V, RL = 1MΩ, 0°C ≤ TA ≤ +70°C 80 80 GBW 0.044 0.044 MHz Input Resistance RIN 1012 1012 Ω Common-Mode Rejection Ratio CMRR 80 80 dB Output Voltage Swing Large-Signal Voltage Gain Unity-Gain Bandwidth 12 VOUT AVOL RS ≤ 100kΩ V dB ______________________________________________________________________________________ Single/Dual/Triple/Quad Operational Amplifiers (VSUPP = ±1.0V, IQ = 10µA, TA = +25°C, unless otherwise noted.) (Specifications apply to ICL7631/7632/7642 only.) PARAMETER SYMBOL Power-Supply Rejection Ratio ICL76XXB CONDITIONS MIN TYP PSRR ICL76XXC MAX MIN TYP MAX UNITS 80 80 dB Input-Referred Noise Voltage en RS = 100Ω, f = 1kHz 100 100 nV/√Hz Input-Referred Noise Current in RS = 100Ω, f = 1kHz 0.01 0.01 pA/√Hz Supply Current (Per Amplifier) ISUPP Channel Separation VO1 / VO2 Slew Rate SR Rise Time tr Overshoot Factor No signal, no load 6 AVOL = 100 15 6 15 µA 120 120 dB 0.016 0.016 V/µs VIN = 50mV, CL = 100pF, RL = 1MΩ 20 20 µs VIN = 50mV, CL = 100pF, RL = 1MΩ 5 5 % AVOL = 1, CL = 100pF, VIN = 0.2VP-P, RL = 1MΩ ELECTRICAL CHARACTERISTICS (Triple/Quad) (VSUPP = ±5.0V, TA = +25°C, unless otherwise noted.) PARAMETER Input Offset Voltage Temperature Coefficient of VOS Input Offset Current SYMBOL VOS ΔVOS/ΔT IOS CONDITIONS IBIAS TYP ICL76XXB MAX MIN TYP ICL76XXD MAX MIN TYP MAX RS ≤ 100kΩ, TA = +25°C 5 10 20 RS ≤ 100kΩ, TMIN ≤ TA ≤ TMAX 7 15 25 UNITS mV RS ≤ 100kΩ 15 TA = +25°C 0.5 20 30 0.5 30 30 0.5 µV/°C 30 C: 0°C ≤ TA ≤ +70°C 300 300 300 M: -55°C≤ TA ≤ +125°C 800 800 800 TA = +25°C Input Bias Current ICL76XXA MIN 1.0 50 1.0 50 1.0 pA 50 C: 0°C ≤ TA ≤ +70°C 500 500 500 M: -55°C≤ TA ≤ +125°C 4000 4000 4000 pA ______________________________________________________________________________________ 13 ICL761X–ICL764X ELECTRICAL CHARACTERISTICS (Triple/Quad) (continued) ICL761X–ICL764X Single/Dual/Triple/Quad Operational Amplifiers ELECTRICAL CHARACTERISTICS (Triple/Quad) (continued) (VSUPP = ±5.0V, TA = +25°C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS IQ = 10µA (Note 7) Common-Mode Voltage Range VCMR Output Voltage Swing VOUT IQ = 1mA, RL = 10kΩ (Note 8) 14 +4.4 TYP MAX MIN +4.4 TYP ICL76XXD MAX MIN TYP MAX UNITS +4.4 -4.0 -4.0 -4.0 +4.2 +4.2 -4.0 -4.0 -4.0 +3.7 +3.7 +3.7 -3.7 -3.7 -3.7 TA = +25°C ±4.9 ±4.9 ±4.9 C: 0°C ≤ TA ≤ +70°C ±4.8 ±4.8 ±4.8 M: -55°C ≤ TA ≤ +125°C ±4.7 ±4.7 ±4.7 TA = +25°C ±4.9 ±4.9 ±4.9 C: 0°C ≤ TA ≤ +70°C ±4.8 ±4.8 ±4.8 M: -55°C ≤ TA ≤ +125°C ±4.5 ±4.5 ±4.5 TA = +25°C ±4.5 ±4.5 ±4.5 C: 0°C ≤ TA ≤ +70°C ±4.3 ±4.3 ±4.3 M: -55°C ≤ TA ≤ +125°C ±4.0 ±4.0 ±4.0 IQ = 1mA (Note 8) IQ = 100µA, RL = 100kΩ (Note 9) MIN ICL76XXB +4.2 IQ = 100µA (Note 9) IQ = 10µA, RL = 1MΩ (Note 7) ICL76XXA ______________________________________________________________________________________ V V Single/Dual/Triple/Quad Operational Amplifiers (VSUPP = ±5.0V, TA = +25°C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS VO = ±4.0V, RL = 1MΩ, IQ = 10µA (Note 7) Large-Signal Voltage Gain AVOL VO = ±4.0V, RL = 100kΩ, IQ = 100µA VO = ±4.0V, RL = 10kΩ (Note 8), IQ = 1mA (Note 7) ICL76XXA MIN TYP 80 104 ICL76XXD MIN TYP TA = +25°C 86 104 C: 0°C ≤ TA ≤ +70°C 80 75 75 M: -55°C ≤ TA ≤ +125°C 74 68 68 TA = +25°C 86 C: 0°C ≤ TA ≤ +70°C 80 M: -55°C ≤ TA ≤ +125°C 74 TA = +25°C 86 C: 0°C ≤ TA ≤ +70°C 80 75 75 M: -55°C ≤ TA ≤ +125°C 74 68 68 102 MAX ICL76XXB 80 102 75 MAX MIN TYP 80 104 80 MAX UNITS 102 75 dB 68 98 80 68 98 80 98 ______________________________________________________________________________________ 15 ICL761X–ICL764X ELECTRICAL CHARACTERISTICS (Triple/Quad) (continued) ICL761X–ICL764X Single/Dual/Triple/Quad Operational Amplifiers ELECTRICAL CHARACTERISTICS (Triple/Quad) (continued) (VSUPP = ±5.0V, TA = +25°C, unless otherwise noted.) PARAMETER Unity-Gain Bandwidth SYMBOL GBW CONDITIONS ICL76XXA MIN Common-Mode Rejection Ratio Power-Supply Rejection Ratio PSRR MIN TYP MAX MIN TYP 0.044 0.044 0.044 IQ = 100µA (Note 9) 0.48 0.48 0.48 RIN CMRR MAX ICL76XXD IQ = 10µA (Note 7) IQ = 1mA (Note 8) Input Resistance TYP ICL76XXB 1.4 1.4 1.4 1012 1012 1012 RS ≤ 100kΩ, IQ = 10µA (Note 7) 76 96 70 96 70 96 RS ≤ 100kΩ, IQ = 100µA 76 91 70 91 70 91 RS ≤ 100kΩ, IQ = 1mA (Note 8) 66 87 60 87 60 87 RS ≤ 100kΩ, IQ = 10µA (Note 7) 80 94 80 94 80 94 RS ≤ 100kΩ, IQ = 100µA 80 86 80 86 80 86 RS ≤ 100kΩ, IQ = 1mA (Note 8) 70 77 70 77 70 77 UNITS MAX MHz Ω dB dB Input-Referred Noise Voltage en RS = 100Ω, f = 1kHz 100 100 100 nV/√Hz Input-Referred Noise Current in RS = 100Ω, f = 1kHz 0.01 0.01 0.01 pA/√Hz IQ = 10µA (Note 7) 0.01 0.022 0.01 0.022 0.01 0.022 IQ = 100µA 0.1 0.25 0.1 0.25 0.1 0.25 IQ = 1mA (Note 8) 1.0 2.5 1.0 2.5 1.0 2.5 Supply Current (Per Amplifier) Channel Separation Slew Rate (Note 10) 16 ISUPP No signal, no load VO1 / VO2 AVOL = 100 SR IQ = 10µA (Note 7), AVOL = RL = 1MΩ 1, CL = I = 100µA, 100pF, Q RL = 100kΩ VIN = 8VP-P IQ = 1mA (Note 7), RL = 10kΩ 120 120 120 0.016 0.016 0.016 0.16 0.16 0.16 1.6 1.6 1.6 ______________________________________________________________________________________ mA dB V/µs Single/Dual/Triple/Quad Operational Amplifiers (VSUPP = ±5.0V, TA = +25°C, unless otherwise noted.) PARAMETER Rise Time (Note 10) Overshoot Factor (Note 10) Note 7: Note 8: Note 9: Note 10: SYMBOL tr CONDITIONS VIN = 50mV, CL = 100pF VIN = 50mV, CL = 100pF ICL76XXA MIN TYP MAX ICL76XXB MIN TYP ICL76XXD MAX MIN TYP IQ = 10µA (Note 7), RL = 1MΩ 20 20 20 IQ = 100µA, RL = 100kΩ 2 2 2 IQ = 1mA (Note 8), RL = 10kΩ 0.9 0.9 0.9 IQ = 10µA (Note 7), RL = 1MΩ 5 5 5 IQ = 100µA, RL = 100kΩ 10 10 10 IQ = 1mA (Note 8), RL = 10kΩ 40 40 40 MAX UNITS µs % Does not apply to ICL7641. Does not apply to ICL7642. ICL7631/ICL7632 only. Does not apply to ICL7632. Typical Operating Characteristics (TA = +25°C, unless otherwise noted.) ______________________________________________________________________________________ 17 ICL761X–ICL764X ELECTRICAL CHARACTERISTICS (Triple/Quad) (continued) ICL761X–ICL764X Single/Dual/Triple/Quad Operational Amplifiers Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.) 18 ______________________________________________________________________________________ Single/Dual/Triple/Quad Operational Amplifiers ______________________________________________________________________________________ 19 ICL761X–ICL764X Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.) ICL761X–ICL764X Single/Dual/Triple/Quad Operational Amplifiers Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.) 20 ______________________________________________________________________________________ Single/Dual/Triple/Quad Operational Amplifiers Quiescent Current Selection The voltage input to the IQ pin of the single and triple amplifiers selects a quiescent current (IQ) of 10µA, 100µA, or 1000µA. The dual and quad amplifiers have fixed quiescent current (IQ) settings. Unity-gain bandwidth and slew-rate increase with increasing quiescent current, as does output sink current capability. The output source current capability is independent of quiescent current. The lowest IQ setting that results in sufficient bandwidth and slew rate should be selected for each specific application. The IQ pin of the single and triple amplifiers controls the quiescent current as follows: IQ = 10µA IQ = 100µA IQ pin to V+ IQ pin between V- + 0.8V and V+ - 0.8V IQ = 1mA IQ pin to V- Input Offset Nulling The input offset can be nulled by connecting a 25kΩ pot between the OFFSET terminals with the wiper connected to V+. At quiescent currents of 1mA and 100µA, the nulling range provided is adequate for all V OS selections. However, with higher values of VOS, and an IQ of 10µA, nulling may not be possible. Frequency Compensation All of the ICL7611 and ICL7621 series except the ICL7614 are internally compensated for unity-gain operation. The ICL7614 is externally compensated by a capacitor connected between COMP and OUT pins, with 39pF being greater than unity. The compensation capacitor value may be reduced to increase the bandwidth and slew rate. The ICL7132 is not compensated and does not have frequency compensation pins. Use only at gains 20 at IQ of 1mA; at gains > 10 at IQ of 100µA; at gain > 5 at IQ of 10µA. Output Loading Considerations Approximately 70% of the amplifier’s quiescent current flows in the output stage. The output swing can approach the supply rails for output loads of 1MΩ, 100kΩ, and 10kΩ, using the output stage in a highly linear Class A mode. Crossover distortion is avoided and the voltage gain is maximized in this mode. The output stage, however, can also be operated in Class AB, which supplies higher output currents (see the Typical Operating Characteristics). The voltage gain decreases and the output transfer characteristic is nonlinear during the transition from Class A to Class B operation. The output stage, with a gain that is directly proportional to load impedance, approximates a transconductance amplifier. Approximately the same open-loop gains are obtained at each of the IQ settings if corresponding loads of 10kΩ, 100kΩ, and 1MΩ are used. The maximum output source current is higher than the maximum sink current, and is independent of IQ. Like most amplifiers, there are output loads for which the amplifier stability is not guaranteed. In particular, avoid capacitive loads greater than 100pF; and while on the 1mA IQ setting, avoid loads less than 5kΩ. Since the output stage is a transconductance output, very large (>10µF) capacitive loads will create a dominant pole and the output will be stable, even with loads that are less than 5kΩ. Extended Common-Mode Voltage Range (ICL7612/ICL7616) A common-mode voltage range that includes both V+ and V- is often desirable, especially in single-supply operation. The ICL7612/ICL7616 extended commonmode range op amps are designed specifically to meet this need. The ICL7612 input common-mode voltage range (CMVR) extends beyond both power-supply rails when operated with at least 3V total supply and an IQ of 10µA or 100µA. The ICL7616 CMVR includes the negative supply voltage (or ground when operated with a single supply) at an IQ or 10µA or 100µA. PC Board Layout Careful PC board layout techniques must be used to take full advantage of the very low bias current of the ICL7611 family. The inputs should be encircled with a low-impedance trace, or guard, that is at the same potential as the inputs. In an inverting amplifier, this is normally ground; in a unity-gain buffer connect the guard to the output. A convenient way of guarding the 8-pin TO-99 version of the ICL7611 is to use a 10-pin circle, with the two extra pads on either side of the input pins to provide space for a guard ring (see Figure 8). Assembled boards should be carefully cleaned, and if a high humidity environment is expected, conformally coated. ______________________________________________________________________________________ 21 ICL761X–ICL764X Detailed Description ICL761X–ICL764X Single/Dual/Triple/Quad Operational Amplifiers Single-Supply Operation Low-Voltage Operation The ICL7611 family will operate from a single 2V to 16V power supply. The common-mode voltage range of the standard amplifier types when operated from a single supply is 1.0V to (V+ - 0.6V) at 10µA IQ. At 100µA IQ, the CMVR is 1.0V to (V+ - 0.8V), and at 1mA IQ, the CMVR is 1.3V to (V+ - 1.3V). If this CMVR range is insufficient, use the ICL7612, whose CMVR includes both ground and V+, or the ICL7616, whose CMVR includes ground. A convenient way to generate a psuedo-ground at V+/2 is to use one op amp of a quad to buffer a V+/2 voltage from a high-impedance resistive divider. Operation at VSUPP = ±1.0V is only guaranteed at IQ = 10µA. Output swings to within a few millivolts of the supply rails are achievable for R L (> or =) 1MΩ. Guaranteed input CMVR is ±0.6V minimum and typically +0.9V to -0.7V at VSUPP = ±1.0V. For applications where greater common-mode range is desirable, see the description of ICL7612 and ICL7616 above. + R + - R1 R R3 VIN + +18V Note that in no case is IQ shown. The value of IQ must be chosen by the designer with regard to frequency response and power dissipation. A1 R2 VIN Applications Information A3 VOUT + ICL7612 - R2 VOUT RL ≥ 10kΩ R3 25kΩ - + A2 GAIN = R3 2R2 +1 R R1 ( ) Figure 1. Instrumentation Amplifier—Adjust R3 to improve CMRR. The offset of all three amplifiers is nulled by the offset adjustment of A2. 22 Figure 2. Simple Follower—By using the ICL7612 in these applications, the circuits will follow rail-to-rail inputs ______________________________________________________________________________________ Single/Dual/Triple/Quad Operational Amplifiers IH5040 +5 VIN - VOUT TO CMOS OR LPTTL LOGIC + 100kΩ 1μF + VOUT ICL7611 + 1MΩ Figure 3. Level Detector—By using the ICL7612 in these applications, the circuits will follow rail-to-rail inputs. Figure 4. Photocurrent Integrator—Low-leakage currents allow integration times up to several hours. 1MΩ VON 1MΩ - 0.05μF + 1 ⁄2 ICL7621 + 10kΩ 2.2MΩ VIN TO SUCCEEDING INPUT STAGE 1 ⁄2 ICL7621 + 1MΩ V- 20kΩ 10μF 20kΩ - V+ 1.8kΩ = 5% SCALE ADJUST 1⁄ 2 ICL7621 DUTY CYCLE + 880kΩ Figure 5. Precise Triangle/Square Wave Generator—The frequency and duty cycle are virtually independent of power supply. VOL - COMMON 1⁄ 2 ICL7621 Figure 6. Averaging AC to DC Converter—Recommended for Maxim’s ICL7106/ICL7107/ICL7109 A/D Converters. BOTTOM VIEW +15V V+ +15V IOSET 100Ω 10kΩ NOTE 1 7 OUTPUT V+ 8 NOTE 2 IO 6 1 5 2 COMP OUT 10kΩ V- 4 3 IN PU TS NOTES: 1. ICL7611, 7612, 7616, 7631, 7632 2. ICL7611, 7612, 7616, 7621, 7622, 7631, 7641, 7642 V GUARD Figure 7. Burn-In and Life Test Circuit Figure 8. Input Guard for TO-99 ______________________________________________________________________________________ 23 ICL761X–ICL764X +5 ICL761X–ICL764X Single/Dual/Triple/Quad Operational Amplifiers S/H CONTROL INPUT CINT 1μF 100kΩ R1 S2 S1 1⁄ 2 ICL7622 A1 RIN 1⁄ 2 ICL7622 A2 VIN - VOUT VOUT + IH5141 CHOLD VIN Figure 9. Low Droop Rate Sample and Hold—S2 improves accuracy and acquisition time by including the voltage drop across S1 inside the feedback loop. R1 closes the feedback loop of A1 during the hold phase. The droop rate is [IBIAS(AZ) + ILEAK(S1) + ILEAK(S2)]/CHOLD. Figure 10. Long-Time Constant Integrator—With RIN = 1011Ω, the time constant of this integrator is 100,000s. Since the input voltage is converted to a current by RIN, the input voltage can far exceed the power-supply range. CFB 10MΩ 10MΩ OUTPUT + RFB - 1011Ω ICL7611 VIN 540pF CURRENT SOURCE + VO = 100mV/pA 5MΩ 270pF Figure 11. Pico Ammeter—The response time of this curcuit is RFB x CFB, where CFB is the stray capacitance between the output and the inverting terminal of the amplifier. 270pF Figure 12. 60Hz Twin “T“ Notch Filter—The low 1pA bias current of the ICL7611 allows use of small 540pF and 270pF capacitors, even with a notch frequency of 60Hz. The 60Hz rejection is approximately 40dB. Typical Operating Circuit CINT RIN VIN + LONG TIME CONSTANT INTEGRATOR (Detailed Circuit Diagram — Figure 10) 24 ______________________________________________________________________________________ VOUT Single/Dual/Triple/Quad Operational Amplifiers Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) ______________________________________________________________________________________ 25 ICL761X–ICL764X Chip Topographies ICL761X–ICL764X Single/Dual/Triple/Quad Operational Amplifiers Revision History REVISION NUMBER REVISION DATE 2 4/08 DESCRIPTION Removed all part numbers offered in die form from the Ordering Information PAGES CHANGED 2, 11 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. 26 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2008 Maxim Integrated Products is a registered trademark of Maxim Integrated Products. Inc.