19-0942; Rev 0; 4/85 General Description The ICL761X/762X/763X/764X family of monolithic CMOS op amps combine ultra low input current with low power operation over a wide supply voltage range. With pin selectable quiescent currents of 10, 100, or 1000 pA 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 1 pA makes this family of op amps ideal for long time constant integrators, picoam- meters, low droop rate sample/hold amplifiers and other applications where input bias and offset currents are criti- cal. A low noise current of 0.01 pA/ Hz and an input impedance of 1012 ohms ensure optimum performance with very high source impedances in such applications as pH meters and photodiode amplifiers. Applications Battery Powered Instruments Low Leakage Amplifiers Long Time Constant Integrators Low Frequency Active Filters Hearing Aids and Microphone Amplifiers Low Droop Rate Sample/Hold Amplifiers MAAIM Single/Dual/Tripie/Quad Operational Amplifiers Features Pin-for Pin 2nd Source! 1 pA Typical Bias Current4 nA Maximum @ 125C Wide Supply Voltage Range +1V to +8V @ Industry Standard Pinouts # Programmable Quiescent Currents of 10, 100 and 1000 LA # Monolithic, Low Power CMOS Design ___ Ordering information ICL76XX M N _OP _ Vos SELECTION TEMP. RANGE PACKAGE CODE A=2mV C=0C to 70C TV - 8 PIN TO-99 B=5mV M=-55C to PA -8PIN C=10mV +125C PLASTIC DIP D=15mV SA -8 PIN SMALL S.0. E=20mV JD - 14 PIN CEROIP PD - 14 PIN PLASTIC DIP SD - 14 PIN SMALL S.0. JE - 16 PIN CERDIP PE - 16 PIN PLASTIC DIP SE - 16 PIN SMALL 8.0. WE - 16 PIN WIDE S.O. Picoammeters Singles Duals Triples Quads z Ln tn & nA st tn & a O oO ONO OQ 5S NRA NSS . " - KO 9, Pin Configuration > % OVBRBS BS B Compensated X |X X{X| xX LX xX xX Te View SINGLESICL7611/12/14/16 Externally op wie TO99 Compensated x (IgSET)" Extended x x CMVR Offset null capability X|X}X|X] [x Programmable Iq |X | X X xX [|X 10uA Xx Fixed!lQ 4 100uA x X 1X imA x ___*PIN 7 CONNECTED TO CASE 8 PIN DIP ical ating Circuit. > Typical Operating orrser [4 [8 | (igsety c In [2] Big Aw an I | 6 | our Pe Your Vo 4 5 | OFFSET = 5 i] Long Time Constant Integrator (Detailed Circuit Diagram Figure 10) *EXTERNAL COMPENSATION (ICL7614) MAXLAA Maxim Integrated Products 1 For free samples & the latest literature: http:/www.maxim-ic.com, or phone 1-800-998-8800 XP/XE/XE/XI'OLTIIICL761X/2X/3X/4X Single/Dual/Triple/Quad Operational Amplifiers Ordering information Single & Dual . PART TEMP. RANGE PACKAGE PART TEMP. RANGE PACKAGE , |_ICL761XACPA 0Cto+70C 8 Lead Plastic DIP ICL7621BCTV OC to+70C + TO-99 Meta! Can [__ICL761XACSA OC to+70C 8 Lead Slim S.0. iCL7621BMTV--55C to +125C~- TO-99 Metal Can ICL761XACTV OCto+70C _TO-99 Metal Can 1CL7621DGPA OCto+70C _8 Lead Plastic DIP ICL761XAMTV __-55C to +125C- TO-99 Metal Can ICL7621DCSA OC to+70C 8 Lead SlimS.0. ICL761XBCPA 0Cto+70C 8 Lead Plastic DIP ICL7621DCTV OCto+70C TO-99 Metal Can |' euze1xBosa OCto+70C _ B Lead Slim S.0. ICL7621DC/D OCto+70C Dice | ICL761XBCTV 0Cto+70C _ TO-99 Metal Can IGL7622ACPD OC to+70C 14 Lead Plastic DIP ) \CL761XBMTV 55C to +125C. TO-99 Metal Can iCL7622ACSD O'Cio+70C 14 Lead Slim S.O. || TeL761XDCPA OCto+70C _ B Lead Plastic DIP ICL7622ACJD OCto+70C 14 Lead CERDIP | ICL761XDCSA 0Cto+70G 8 Lead Slim S.O. ICL7622AMJD 55C to +125G = 14 Lead CERDIP : \CL761XDCTV 0C10+70G _TO-99 Metal Can \CL7622BCPD OC to+70C 14 Lead Plastic DIP ICL761XDC/D O'Cto+70C Dice ICL7622BCSA OCto+70C 14 Lead Slim S.O. ICL7621ACPA 0Cto+70C _B Lead Plastic DIP 1CL7622BCJD OC to+70C 14 Lead CERDIP ICL7621ACSA OCto+70C 8 Lead Slim 8.0. ICL7622BMJD _-55C to +125C ~ 14 Lead CERDIP ICL7621ACTV OC to+70C _ TO-89 Metal Can ICL7622DCPD 0Cto+70C 14 Lead Plastic DIP ICL7621AMTV 85C to +125G --TO-99 Metal Can ICL7622DCSD OCto+70C 14 Lead Slim S.O. ICL7621BCPA 0C to+70C 8 Lead Plastic DIP ICL7622DCJD 0Cto+70C 14 Lead CERDIP ICL7621BCSA OCto+70C _B Lead Slim S.0. ICL7622DC/D OC to+70C Dice (X above is replaced by: 1, 2, 4, 6) *EXTERNAL COMPENSATION (1CL7614) Pin Configuration Top View SINGLESICL7611/12/14/16 DUALSICL7621/22 To taser 14 Lead e AS Na [1 [14] OFFSET, Na [2 | [13] v* A PIN 7 CONNECTED TO CASE oFFsera [3 | [12] ours 8 Lead Bead ve [a] ra] we Vf / OFFSETs [5 10] our; oreset [11] 8 | (laSET)" out, [|] ra] o LE 5 [ra] ours A se -IN ma ve wa [7] + H] outs +iNe [6 | Po} v B ,~ \ ww [a] [6] our +m [3 | re] Ne Ne [7] [8 | OFFSET, v- [a] rs] OFFSET ey =] sive Nole: PINS 9 & 13 ARE INTERNALLY CONNECTED MAXIMABSOLUTE MAXIMUM RATINGS! Single & Dual Total Supply Voltage V* toV.. 0... eee 18V Input Voltage .................. Vt+0.3 to V--0.3V Differential Input Voltage? ..... +l(V++0.3)-(V--0.3)V Duration of Output Short Circuit? ............ Unlimited Continuous Power Dissipation @ 25C Above 25C derate as follows: TO-99 Metal Can 250mWw 2mw/C 8 Lead Minidip 250mW 2mw/eC 14 Lead Plastic 375mW 3mW/C 14 Lead CERDIP 500mW 4mw/C 16 Lead Plastic 375mW 38mWw/C 16 Lead CERDIP 500mW 4mWw/C Storage Temperature Range ....... 55C to +150C ELECTRICAL CHARACTERISTICS Single & Dual (Vgupp = 1.0V, lq = 10yA, Ta = 25C, unless noted) Single/Dual/Triple/Quad Operational AmpHfiers Operating Temperature Range MSeries.............. 000 eee 55C to +125C CSeries 0.0.0.0... cece OC to +70C Lead Temperature Soldering, 10sec ............ 300C Notes: 1. Stresses above 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 above those indicated in the operational sections of the specifications is not implied. Exposure to absolute max- imum rating conditions for extended periods may affect device reliability. 2. Long term offset voltage stability will be degraded if large input differential voltages are applied for long periods of time. 3. 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. T6XXA 76XXB PARAMETER SYMBOL CONDITIONS MIN. TYP MAX. | MIN. TYR MAX. UNITS Input Offset Voltage Vos Rg 100k0, T, = 25C 2 5 mV Twin S Ta S Tax 3 7 Temperature Coefficient of Vog |AVog/AT Rg < 100k 10 15 p/P Input Offset Current los Ta = 25C 05 30 0.5 30 A OCS Tas +70C 300 300 p Input Bias Current lgias Ta = 25C 1.0 50 1.0 50 A OCS Tas + 70C 500 500 p Common Mode Voltage Range |Vour -0.4 +0.6 | -0.4 +0.6 Vv (Except ICL7612, ICL7616) Extended Common Mode Vomr -14 +06 | -1.1 +0.6 Vv Voltage Range (ICL7612 Only) Extended Common Mode Vemr lq = 10nA -13 -0.3 -13 -0.3 Vv Voltage Range (ICL7616 Only) Output Voltage Swing Vout Ri = 1M, Ta = 25C +0.98 +0.98 Vv OC<Ta<+70C +0.96 +0.96 Large Signal Voltage Gain Avot Vo = +0.1V, RL = 1MQ dB Ta = 25C 90 90 0C < Ta < +70C 80 80 Unity Gain Bandwidth Gaw 0.044 0.044 MHz Input Resistance Rin 101 1072 a Common Mode Rejection Ratio |CMRR Rg < 100k 80 80 dB Power Supply Rejection Ratio |PSRR Rg< 100kQ 80 80 dB Input Referred Noise Voltage |e, Rg = 1000, f = 1kHz 100 100 nv/Vv Hz Input Referred Noise Current |i, Rg = 1000, f = 1kHz 0.01 0.01 pA/AV/ Hz Supply Current (Per Amplifier) ||lgupe No Signal, No Load 6 15 6 15 pA Slew Rate SR Avot = 1, CL = 100pF, 0.016 0.016 V/us Vin = 0.2Vp-p R, = 1Ma Rise Time t Vin = 50mvV, C_ = 100pF 20 20 ys RL = 1Mo Overshoot Factor Vin = 50mvV, C, = 100pF 5 5 % Ri = 1MQ MAXAXLYVI 3 XP/XESXE/XIBLTHICL761X/2X/3X/4X Single/Dual/Triple/Quad Operational Amplifiers ELECTRICAL CHARACTERISTICS Single & Dual (Vsupp = 5.0V, Ta = 25C, unless noted) T6XXA 76XXB 76XXD PARAMETER SYMBOL| CONDITIONS MIN. TYR MAX.) MIN. TYP MAX.1MIN. TYP MAX.| UNITS Input Offset Voltage Vos Rg < 100k0, Ta = 25C 2 5 15 mV Tain Ta = Trax 3 7 20 mV Temperature Coefficient AVos/AT Rg < 100k 10 15 25 EN/OS of Vos Input Offset Current los Ta = 25C 05 30 05 30 05 30 OC<STas+70C 300 300 300 | pA 55C<Ta<4125C 800 800 800 Input Bias Current laiag Ta = 25C 10 50 10 50 10 50 OC<Ta<+70C 400 400 400 pA 55C<Ta<+125C 4000 4000 4000 Common Mode VemrR lo = 10uA' +4.4 +44 +44 Voltage Range Q H -4.0 -4.0 -4.0 (Except (CL7612, iCL7616) 44.2 +42 +42 Iq = 100," ~4.0 -40 -40 v _ 1 +37 +37 +3.7 lg = ImA -37 -3.7 -3.7 Extended Common Mode Vomr Ig = 10uA #53 +5.3 +5.3 Voltage Range + +5 + (I1CL7612 Only) Iq = 10044 Be #8 Bt Vv - +53 +56.3 +53 lg = mA ~45 -45 -45 Extended Common Mode Veme lo = 10nA 5.3 -5.3 -.3 Voltage Range Q +37 +37 +35 (ICL7616 Only} -5.1 -5.1 -51 Iq = 100uA +3.0 +3.0 +27 v _ -45 +45 4 lg= mA +2.0 +2.0 +17 Output Voltage Swing Vout (1) lg = 10pA, Rp = 1MO Ta = 25C +49 +4.9 +49 OC<Ta<+70C = | +4.8 +48 +48 56C<Tast125C |+4.7 +47 +47 Ig = 100uA, RL = 100ka Ta = 25C +49 +49 +4.9 Vv OC<TA<t70C [+4.8 +48 +48 ~55C<Tas+125C [45 45 24.5 (1g = 1mA, RL = 10ka Ta = 25C 4.6 +4.5 +45 0C<Tast+70C 43 +43 +43 55C<Tast+125C [44.0 +4.0 +4.0 Large Signal Voltage Gain Avot Vo = 4.0V, AR, = Ma Iq = 10pA, Ta= 25C | 86 104 80 104 80 104 0C< Ta +70C 80 75 75 55C< Ta 4126C | 74 68 68 Vo = 4.0V. R, = 100kn lg = 100A, Ta = 25C | 86 102 80 102 80 102 4B 0C<Ta<+709C 80 75 75 55C<Tast125C | 74 68 68 Vo = +4.0V, RL = 10ka, Ig = 1mA!T,=25C | 8083 76 83 76 8&8 OC<Ta<+70C 76 72 72 56C<Ta<4125C | 72 68 68 Unity Gain Bandwidth Gew Iq = 10uA1 0.044 0.044 0.044 Ig = 100uA 0.48 0.48 0.48 MHz Ig = 1mA! 1.4 1.4 1.4 Note 1: ICL7611, 7612, 7616 only Note 2: 1CL7614; 38 pF from pin 6 to pin 3 4 MAXISingle/Dual/Triple/Quad Operational Amptifiers ELECTRICAL CHARACTERISTICS Single & Dual (Continued) (Vsupp = +5.0V, Ta = 25C, unless noted) TBXXA 76XXB 76XXD PARAMETER SYMBOL CONDITIONS MIN. TYP MAX.{MIN. TYP MAX.jMIN. TYP MAX| UNITS Input Resistance Rin 10'2 10% 10'2 a Common Mode Rejection CMRR_~|Rg<100k0,Ig=10HA'| 76 996 70 86996 70 8696 Ratio Rs <100k0,lg=100uA 176 91 70 91 7O 91 dB Rg < 100k, lg = 1mA' | 66 87 60 87 60 87 Power Supply Rejection PSRR Rg <100k0, Iq = 10uA' | 80 94 80 4 80 94 Ratio Rg< 100k, lq = 100A | 80 86 80 86 80 86 dB Rs <100kK0,Ig=imA'| 70 77 70. 77 70 77 Input Referred Noise Voltage |e, Rg = 1000, f = 1kHz 100 100 100 inven Hz Input Referred Noise Current |in Rg = 1000, f = 1kHz 0.01 0.01 0.01 pA/V Hz Supply Current Isupe No Signal, No Load (Per Amplifier) Iq = 10pA' 0.01 0.02 0.01 0.02 0.01 0.02 mA Iq = 10024 01 0.25 0.1 0.25 01 0.25 Ig = 1mA' 10 25 10 25 10 25. Channel Separation Vo1/Vo2 Avot = 100 120 120 120 dB Slew Rate? SR Avot =1, CL = 100pF Vin = 8Vp-p Ig = 10uA! R, = 1M 0.016 0.016 0.016 V/us lq = 100uA, R_ = 100ka 0.16 0.16 0.16 lg = 1mA' Ri = 10k 1.6 16 16 Rise Time? t Vin = 5OmV, C, = 100pF Ig = 10uA! R, = 1MO 20 20 20 lq = 100uA, Ry = 100k 2 2 2 HS Ig=1mA! R, = 10ka 09 09 09 Overshoot Factor? Vin = 50mvV, C, = 100pF Iq =10uA! RL = 1MQ 5 5 5 % Ig = 100uA, R, = 100k0 10 10 10 lg = 1mA! R, = 10k0 40 40 40 Note 1: 1CL7611, 7612, 7616 only. Note 2: |CL7614; 39 pF from pin 6 to pin 8. MAAIM XP/KE/XE/XILOLTDIICL761X/2X/3X/4X Single/Dual/Triple/Quad Operational Amplifiers Ordering Information Triple & Quad PART TEMP. RANGE PACKAGE PART TEMP. RANGE PACKAGE ICL763XBCPE OC to +70C 16 Lead Plastic DIP ICL764XBCPD 0C to +70C 14 Lead Plastic DIP ICL763XBCSE OC to +70C 16 Lead Slim 8.0. ICL764XBCWE 0C to +70C 16 Lead Wide S.O. ICL763XCCPE OC to +70C 16 Lead Plastic DIP ICL764XCCPD 0C to +70C 14 Lead Plastic DIP ICL763XCCSE OC to +70C 16 Lead Slim S.O. ICL764XCCWE 0C to +70C 16 Lead Wide S.O. ICL763XECPE OC to +70C 16 Lead Plastic DIP ICL764XECPD 0C to +70C 14 Lead Plastic DIP ICL763XECSE 0C to +70C 16 Lead Slim S.O. ICL764XECWE 0S to +70C 16 Lead Wide S.O. ICL763XBCJE OC to +70C 16 Lead CERDIP ICL764XBCJD 0C to +70C 14 Lead CERDIP ICL763XCCJE OC to +70C 16 Lead CERDIP ICL764XCCJD 0C to +70C 14 Lead CERDIP ICL763XECJE 0C to +70C 16 Lead CERDIP ICL764XECJD 0C to +70C 14 Lead CERDIP ICL763XBMJE -5C to +126C = 16 Lead CERDIP ICL764XBMJD -55C to +125C =: 14 Lead CERDIP ICL763XCMJE -5C to +125C == 16 Lead CERDIP ICL764XCMJD -65C to +125C ~=- 14 Lead CERDIP ICL763XEC/D 0C to +70C Dice ICL764XEC/D OC to +70C Dice (X above is replaced by: 1, 2) Pin Configuration Top View \CL7631/32 (GL 7641/42 ICL7641/42 16 Lead 16 Lead Wide S.O. 14 Lead 7 ; a ; we [7] F} tac ser OUT G4 [6] outo outs [5 | 14] ouTD -IN, [2] 5] vt 1a 2] / A \ / D \ 5] IND Na EI] / A \ / o \ a] AND +n, [3] [1a] Outs +INa BO if | re +ND 4INa Br A +No ours [4] [13] +INe va] [13] v- v [a] i) v ve iG [12] -INe INB +1 ve +INc NB a La +INc SET lac [6] ftijionset = -iNe [6 | vs Nc P4]-Nc sine [eo | 7 Aey 2 | -INc Nc [7] [10] OUTe outs [7 | [10] Cute outs [7 8 | QUTe +INc [a] fe] v- we [a | Ts] wc Note: Pins 5 & 15 are internally connected ; MAXIMABSOLUTE MAXIMUM RATINGS' Triple & Quad Total Supply Voltage Vt toV. 0.00.2... eee 18V Input Voltage .................. V*+0.3 to V--0.3V Differential Inout Voltage? ..... +|(V++0.3)-(V--0.3)IV Duration of Output Short Circuit? ............ Unlimited Continuous Power Dissipation @ 25C Above 25C derate as follows: TO-99 Metal Can 250mW 2mWw/eC 8 Lead Minidip 250mW 2mw/C 14 Lead Plastic 375mW 3mWw/C 14 Lead CERDIP 500mW 4mw/C 16 Lead Plastic 375mW 3mWw/eC 16 Lead CERDIP Storage Temperature Range 500mW 4mW/C beeen 56C to +150C ELECTRICAL CHARACTERISTICS Triple & Quad (Vsupp = = 1,0V, In = 10nA, Ta = 25C, unless noted) Specs apply to ICL7631/7632/7642 only. Single/Dual/Triple/Quad Operational Amplifiers Operating Temperature Range MSeries....................25. ~5C to +125C CSeries. 0.0.0... ee eee OC to +70C Lead Temperature Soldering, 10sec ............ 300C Notes: 1. Stresses abave 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 above those indicated in the operational sections of the specifications is not implied. Exposure to absolute max- imum rating conditions for extended periods may affect device reliability. 2. Long term offset voltage stability will be degraded if large input differential voltages are applied for long periods of time. . The outputs may be shorted to ground or to either supply for Vsypp <10V. Care must be taken to insure that the dissipation rating is not exceeded. wo 76XXB 76XXC PARAMETER SYMBOL CONDITIONS MIN. TYP MAX. | MIN. TYP. MAX. UNITS. Input Offset Voltage Vos Rg< 100kn, Ta = 25C 5 10 mV Tun < Ta Tax 7 12 Temperature Coefficient of Vos | AVos/AT Rs < 100kn 15 20 pv/2C Input Offset Current los Ta = 25C 05 30 05 30 A OC< Tas +70C 300 300 B Input Bias Current Ibias Ta = 25C 1.0 50 1.0 50 0C < Ta < +70C 500 500 Common Mode Voltage Range | Vcwr ~0.4 +0.6 -0.4 +0.6 Vv Output Voltage Swing Vout Ry = 1M0, Ts = 25C +0.98 +0.98 0C<Tast+70C +0.96 +096 Large Signal Voltage Gain Avot Vo = 0.1V, Rp = 1MQ dB Ta = 25C 90 90 OC <Ta < +70C 80 80 Unity Gain Bandwidth Gaw 0.044 0.044 MHz Input Resistance Rin 1072 1012 a Common Made Rejection Ratio] CARR Rg < 100k 80 80 dB Power Supply Rejection Ratio | PSRR 80. 80 dB Input Referred Noise Voltage |e, Rs = 1000, f = 1kHz 100 100 AV/V Hz Input Referred Noise Current | i, Rs = 1000, f = 1kHz 0.01 0.01 pA/A/ Hz Supply Current (Per Amplifier) | Isupp No Signal, No Load 6 15 6 15 BA Channel Separation Vo1/Voe2 Avot = 100 120 120 dB Slew Rate SR Avot = 1, Cy = 100pF, 0.016 0.016 V/us Vin = 0.2Vp-p RL =1Ma Rise Time tr Vin = 50mvV, CL = 100pF 20 20 us RL = 1Ma Overshoot Factor Vin = 50mvV, C_ = 100pF 5 5 % R, =1Ma MAALNWI Xb/XE/XE/XtLBLTIIICL761X/2X/3X/4X Single/Dual/Triple/Quad Operational Amplifiers ELECTRICAL CHARACTERISTICS Triple & Quad (Vgupp = 5.0V, Ta = 25C, unless noted) 76XXB 76XXC 76XXE PARAMETER SYMBOL CONDITIONS MIN. TYP MAX.|MIN. TYP MAX.|MIN. TYP MAX. | UNITS Input Offset Voltage Vos Rg < 100kn, Ta = 25C 5 10 20 mv Twin S Tas Turax 7 15 25 mV Temperature Coefficient AVos/AT Rg < 100k0 15 20 30 uv/PC of Vos Input Offset Current log Ta = 25C 05 30 05 30 05 30 OC<Ta<+70C 300 300 300 pA 5C<Ta<t125C 800 800 800 Input Bias Current Ibias Ta = 25C 10 50 10 50 1.0 50 OC<Tas+70C 500 500 500 pA 5C<Ta<4+125C 4000 4000 4000 Common Mode Vemr lo = 104" +4.4 +44 +44 Voltage Range -4.0 -4.0 4.0 +4.2 +4.2 +4.2 Ig= 100HA* I-40 ~40 -4.0 v ama? +3.7 +3.7 +37 lg= Ima -37 ~37 -37 Output Voltage Swing Vout (1) lg = 10uA, RL= 1Ma Ta = 25C +49 +49 +4.9 OC<Tast+70C +4.8 +48 +48 5C < Tas +125C [4.7 +47 +47 lg = 100uA, RL = 100k (3) Ta = 25C +49 +49 +49 V OC<Tas+70C +48 +48 48 56C < Tas +126C [24.5 +45 #45 (2) lg = 1mA, RL = 10kn Ta = 25C +45 +45 +45 OC<Ta<+70C = | 4.3 +43 +43 58C < Ta < +125C [+4.0 +40 +40 Large Signal Voltage Gain | Ayo Vo = 4.0V, R, = 1Ma! lq = 10uA1Ta = 25C | 86 104 80 104 80 104 OC<Ta<+70C 80 75 75 56C <Ta<+125C | 74 68 68 Vo = +4.0V;RL lq = 100pA, Ta= 25C | 86 102 80 102 80 102 dB OC<Ta<+70C =| _ 80 75 75 55C <Ta<+125C | 74 68 68 Vo = +4.0V, Ry = 10k? Ig=i1mA'T,=25C | 86 98 80 8698 80 98 0C<Ta<+70C 80 75 75 55C <Tas4+125C | 74 68 68 Unity Gain Bandwidth Gaw lo = 10uA' 0.044 0.044 0.044 Iq = 100A? 0.48 0.48 0.48 MHz Ig = 1mA? 14 1.4 1.4 Input Resistance Rin 101? 1012 10" a Common Mode Rejection CMRR Rg <100k0,lg=10nA"| 76 96 70 896 70 6986 Ratio Rg <100k0, lq = 100uA| 76 91 7O 91 7o. 91 dB Rs < 100k? Ig = 1mA?] 66 87 60 87 60 87 Power Supply Rejection PSRR- | Ag<100k0,!g=10uA'] 80 994 80 94 80 94 Ratio Rg <100k0, lq =100UA}] 80 86 80 86 80 86 dB Rg < 100k9, Iq = 1imA?| 70 77 70 77 70 77 Note 1: Does not apply to 7641. Note 2: Does not apply to 7642. Note 3: 1CL7631/32 only. Note 4; Does not apply to 7632. MAXIMSingle/Dual/Triple/Quaed Operational Amplifiers ELECTRICAL CHARACTERISTICS Triple & Quad (Continued) (Vsupp = 5.0V, Ta = 25C, unless noted) 76XXB 76XXC 76XXE PARAMETER SYMBOL CONDITIONS MIN. TYP MAX.) MIN. TYP MAX.) MIN. TYP MAX. UNITS input Referred Noise Voltage | e, Rg = 1000, f = 1kHz 100 100 100 Invi Hz Input Referred Noise Current} in Rg = 1000, f = 1kHz 0.01 0.01 0.01 bA/A Hz Supply Current Isupe No Signal, No Load (Per Amplifier) lo= 10pA' 0.01 0.022 0.01 0.022 0.01 0.022 mA Iq = 100uA 01 0.25 01 0.25 0.1 025 lq = 1mA? 10 25 10 25 10 25 Channel Separation Vo1/Vo2 Avoi = 100 120 120 120 dB Slew Rate* SR Avot = 1,C, = 100pF Vin = BVp.p lg = 10HA) RL = 1M 0.016 0.016 0.016 Vis lq = 100uA, RL = 100kn 0.16 0.16 0.16 Ig = 1mA} Ri = 10kn? 1.6 1.6 1.6 Rise Time* t Vin = 50mvV, C_ = 100pF Iq = 10uA! Ry = IMO 20 20 20 Iq = 100A, Ry = 100k 2 2 2 us lg = mA? R, = 10kN 0.9 0.9 09 Overshoot Factor* Vin = SOmvV, CL = 100pF lq = 102A! RL = 1MQ 5 5 5 % Jg = 100uA, RL = 100k2 10 10 10 lg = ImA? R, = 10k0 40 40 40 Note 1: Does not apply to 7641. Note 2: Does not apply to 7642. Note 3: 1CL7631/32 only. Note 4: Does not apply to 7632. ____ Typical Operating Characteristics Xb/XE/XE/XIGLTII MAAKIM MAXIMUM PEAK-TO-PEAK QUTPUT VOLTAGE - V 0 MAXIMUM PEAK-TO-PEAK VOLTAGE AS A FUNCTION OF FREE-AIR TEMPERATURE R, = 100kR R, = 10k0, Vgupe = 10 VOLTS Ig = 1mA -75 -50 -28 @ 425 +100 +125 FREE-AIR TEMPERATURE - C MAXIMUM PEAK-TO-PEAK OJTPUT VOLTAGE - V MAXIMUM PEAK-TO-PEAK OUTPUT VOLTAGE AS A FUNCTION OF SUPPLY VOLTAGE Th =H25C 4 6 8 10 12 14 16 SUPPLY VOLTAGE - VOLTSICL761X/2X/3X/4X Single/Dual/Triple/Quad Operational Amplifiers SUPPLY VOLTAGE REJECTION RATIO - dB SUPPLY CURRENT yA DIFFERENTIAL VOLTAGE GAIN 10 10k x 400 10 1 90 2 a 6 8 10 12 14 SUPPLY VOLTAGE VOLTS POWER SUPPLY REJECTION RATIO AS A FUNCTION OF FREE-AIR TEMPERATURE 100 Ig=1mA Vsupp = 10 95 80 lg = 100A * om 80 65 SUPPLY CURRENT PER AMPLIFIER AS A FUNCTION OF SUPPLY VOLTAGE Ta = +266 NO LOAD NO SIGNAL lg = 1mA -75 -S0 -26 a +26 +60 FREE-AIR TEMPERATURE C LARGE SIGNAL DIFFERENTIAL +78 +100 +125 VOLTAGE GAIN AND PHASE SHIFT AS A FUNCTION OF FREQUENCY 107 Vsuep = 16 V |g = 100uA be me ot o e lg Ima . la 48 PHASE SHIFT*s, ligt ima) Saye eee, 90 * . s 2 lg = 10yA 9 136 180 ot 1 10 100 Tk 10k 100k 1M FREQUENCY Hz Typical Operating Characteristics PEAK-TO-PEAK OUTPUT VOLTAGE AS A FUNCTION OF FREQUENCY MAXIMUM PEAK-TO-PEAK OUTPUT VOLTAGE V 3 3 DIFFERENTIAL VOLTAGE GAIN V/m MAXIMUM OUTPUT SINK CUFRENT mA 8 o -75 60 -25 0 ot 100 1k 10k 100k 1M 410M FREQUENCY Hz LARGE SIGNAL DIFFERENTIAL VOLTAGE GAIN AS A FUNCTION OF FREE-AIR TEMPERATURE lo= ima Vgupp = 10 VOLTS Vout * 8 VOLTS +258 +500 +75 +100 +125 FREE-AIR TEMPERATURE C MAXIMUM OUTPUT SINK CURRENT AS A FUNCTION OF SUPPLY VOLTAGE 9 2 4 6 8 10 12 44 16 SUPPLY VOLTAGE VOLTS MAAIMINPUT BIAS CURRENT AS A FUNCTION OF TEMPERATURE 1000 Vgupp = 10V 100 1 k a 10 3 2 5 10 z= Ot 60-25 0 +25 4800 $75 +100 4125 FREE-AIA TEMPERATURE *C COMMON MODE REJECTION RATIO AS A FUNCTION OF FREE-AIR TEMPERATURE 105 Vgupp * 10v 100 lq = 10 uA COMMON MODE REJECTION RATIO 48 3 a 70 -75 -50 -25 0 +25 450 +78 +100 +125 FREE-AIR TEMPERATURE - C MAXIMUM PEAK-TO-PEAK OUTPUT VOLTAGE AS A FUNCTION OF LOAD RESISTANCE > 16 1 wt Vgupp = 10 VOLTS 2 Ty =25C 5 a1 ig= IMA S 5 10 5 8 x $s a 6 e = 4 2 z 2 = Zz 0 = or 1.0 10 100 LOAD RESISTANCE kA MAAN Single/Dual/Triple/Qued Operational Amplifiers Typical Operating Characteristics EQUIVALENT INPUT NOISE VOLTAGE AS A FUNCTION OF FREQUENCY 8 Ty = 1266 BV < Vgupp <18V 8 = 8 x 8 3 EQUIVALENT INPUT NOISE VOLTAGE ~ nV /HE w 8 3S 100 tk 10k 100k FREQUENCY - H2 SUPPLY CURRENT PER AMPLIFIER AS A FUNCTION OF FREE-AIR TEMPERATURE jo = IMA NO SIGNAL TO lg = 100.4, ly = 100A a -50 -25 oO +26 +60 +75 +100 +925 FREE AIR TEMPERATURE C uA & 3 SUPPLY CURRENT 5 MAXIMUM OUTPUT/SOURCE CURRENT AS A FUNCTION OF SUPPLY VOLTAGE 2 Vsupp 7 10V Yout = All ig = settings 8 8 8 3 MAXIMUM QUTPUT SOURCE CURRENT mA Q 2 4 6 @ 1 12 14 16 SUPPLY VOLTAGE - VOLTS 11 Xb/XE/XE/XLGLTIIICL761X/2X/3X/4X Single/Dual/Triple/Quad Operational Amplifiers Typical Operating Characteristics VOLTAGE FOLLOWER LARGE SIGNAL PULSE RESPONSE Vgupe> 19 Ry, = 100k CL 100pF T= -25C OUTPUT INPUT INPUT AND OUTPUT VOLTAGE - VOLTS TIME 1S VOLTAGE FOLLOWER LARGE SIGNAL PULSE RESPONSE Vsupp? 10 R, = 100k cls 100pF Ta-t25C OUTPUT INPUT AND QUTPUT VOLTAGE - (NPUT a 20 40 60 au (oo 120 TIME, us VOLTAGE FOLLOWER LARGE SIGNAL PULSE RESPONSE 6 Ig = 100A 4 m7 4 | GUTPUT INPUT AND OUTPUT VOLTAGE--V INPUT Vsupp* 10V AL =1M Cy 7 100pF Ta =+25C -6 0 700-400 600 800 TIME u8 Detailed Description Quiescent Current Selection The voltage input to the Iq pin of the single and triple amplifiers selects a quiescent current (lq) of 10, 100 or 1000 A. The dual and quad amplifiers have fixed quies- cent 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 Ig setting that results in sufficient bandwidth and slew rate should be selected for each specific appli- cation. The Ig pin of the single and triple amplifiers controls the quiescent current as follows: Iq= 10pA..... lapinto Vt Iqg=100pA..... Ig pin between V- +0.8V and V* 0.8V lg= 1mA..... lq pin to V 12 1000 1200 Input Offset Nulling The input offset can be nulled by connecting a 25K pot between the OFFSET terminals with the wiper connected to Vt At quiescent currents of 1 mA and 100 pA, the nulling range provided is adequate for all Vos selections. How- ever with higher values of Vos, and an Iq of 10 pA, 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 con- nected between COMP and OUT pins, with 39 pF being sufficient compensation for a unity gain buffer. For gains 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 100pA; at gains =5 at lq of 10uA. MAXIMNWIOutput 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 1M, 100k and 10k, 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 out- put currents. (See graphs under Typical Operating Char- acteristics). The voltage gain decreases and the output transfer characteristic is non-linear 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 10k, 100k, and 1M 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 100 pF; and while on the 1imA Ig setting, avoid loads less than 5 ko. Since the output stage is a transconductance output, very large (>10 pF) capacitive loads will create a dominant pole and the output will be stable, even with loads that are less than 5 ko. Extended Common Mode Voltage Range, ICL7612 and ICL7616 Acommon mode voltage range that includes both Vt and V is often desirable, especially in single supply opera- tion. The ICL7612 and ICL7616 extended common mode 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 Ig of 10uA or 100A. The ICL7616 CMVR includes the negative sup- ply voltage (or ground when operated with a single supply) at an Iq of 10uA or 100uA. Single/Dual/Triple/Quad Operational Amplifiers Printed Circult Board Layout Careful PCB 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 impe- dance 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 ouput. 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. Single Supply 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 sup- ply is 1.0V to (Vt 0.6V) at 10 WA Ig. At 100 LA Ig the CMVR is 1.0V to (V+ 0.8V), and at 1 mA 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. Low Voltage Operation Operation at Vsypp = +1.0V is only guaranteed at iq = 10 yA. Output swings to within a few millivolts of the supply rails are achievable for R, (> or =) 1 MOQ. Guaran- teed 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, refer to description of 1CL7612 and ICL7616 above. Applications Note that in no case is lg shown. The value of lq must be chosen by the designer with regard to frequency response and power dissipation. can = (BR VIN + ICL761 Vout Ry 2 10kN Figure 1. instrumentation Amplifier Adjust R3 to improve CMAR. The offset of all three amplifiers is nuiled by the offset adjustment of A2. MAXIL/VI Figure 2. Simpie Follower By using the ICL7612 in these applications, the circuits will follow rail to rail inputs. 13 XP/KESXE/XIGL THICL761X/2X/3X/4X Single/Dual/Triple/Quad Operational Amplifiers +h Vv Your TO.EMOS OR LPTTL LoGic 100k 2 I-AA & A +) u >>... SS 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 integra- tion times up to several hours. 680k WAVEFORM GENERATOR 05uF 10k 2 SCALE ADJUST COMMON 2 \cu7621 Figure 5. Precise Triangle/Square Wave Generator The frequency and duty cycle are virtually independent of power supply. Figure 6. Averaging AC to DC Converter Recommended for Maxim's 1CL7106/07/09 A/D Converters. ad Bottom View aw 1092 Iq SET 119 NOTE 1 vt we OUTPUT \ j & tt SS + Ig | 2 :. 1 5 1482 our Oo v 4 P., ss 7 GUARD AS = Ye Notes: - 1. 7611, 7812, 7816, 7831, 2 7811, 7812, 7818, 7621, 7622, 7B31, 7641, PEAT = Figure 7. Burn-in and Life Test Circuit Figure 8. Input Guard for TO-99 S/H CONTROL q INPUT t ' 1 T t 1 1 l > Lt As 4 1 MARIN 1s) reize22 > Pi Your . + Vout WARIA I 1H5141 | . Shou Figure 9. Low Droop Rate Sample & HoldS2 improves accuracy and acquisition time by including the voltage drop across S1 inside the feed- back loop. R1 closes the feedback loop of A7 during the hold phase. The droop rate is Ulgiasraz) + fLeanst) + Leaxs2)l/Crowp- 14 Figure 10. Long Time Constant Integrator With Riy = 10" ohm, the time constant of this integrator is 100,000 seconds. Since the input voltage is converted to a current by Ryy, the input voltage can far exceed the power supply voltage. MAAILWISingle/Dual/Triple/Quad Operational Amplifiers Cre Ree - 101102 AAA We } Vo > +___ ; Vo = -100mW/pA CURRENT SOURCE OUTPUT OMS) yom) \CL7611 fo & 270pF 270pF Figure 11. Pico Ammeter The response time of this circuit is Arg X Cre, where Crg is the stray capacitance between the output and the inverting terminal of the amplifier. Figure 12. 60 Hz Twin T Notch Filter The low, 1 pA bias current of the 1CL7671 allows use of small 840 pF and 270 pF capacitors, even witha notch frequency of 60 Hz. The 60 Hz rejection is approximately 40 dB. ___ Chip Topographies 1CL7611/12/14/16 SINGLE a 0 ml OUTPUT BIAS/COMP OFFSET 8 5 OFFSET vO 0.061" 1 (1.55 mm} 4 INPUT + IMPUT 2 3 ICL7631/32 TRIPLE lag 0.100 | | (2.54mm] "| 14 13 12 " OUT, +N -IN SET OUT 0.076 (1.93mm) MAXI/VI ICL7621/22 DUAL 0.083" (2.11 mm} OUT, NC oR v on 8 OFFSET, V~ OFFSET, +IN, 2 3 4 5 6 ICL7641/42 QUAD 0.099" , | {2.51 mmt ~| +ING 58 " | vO 4 0078" " Vo (2.04 min) 4 +IN, | 15 XP/XE/XE/XLOLTII