Datasheet

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General Description

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 pin-

selectable 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 milli-

volts 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 cur-

rents are critical. A low noise current of 0.01pA√Hz and

an input impedance of 10

Ω ensure optimum perfor-

mance 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

Picoammeters

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

ICL761X–ICL764X

Single/Dual/Triple/Quad

Operational Amplifiers

________________________________________________________________

Maxim Integrated Products

TOP VIEW SINGLES—ICL7611/12/14/16

TO—99

SET)*

V-

V+

OUTPUT

OFFSET

-IN

+IN

*EXTERNAL COMPENSATION (ICL7614)

8-PIN DIP

*PIN 7 CONNECTED TO CASE

OUT

SET)*

OFFSET

V+

+IN

V-

OFFSET

Ordering Information

Pin Configuration

19-0942; Rev 3; 5/10

ICL76XX M N OP

SELECTION

TEMP

RANGE

PKG CODE

A = 2mV

C = 0°C to

70°C

TV= 8-Pin TO-

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

SD = 14-Pin

Small SO

JE = 16-Pin

CERDIP

PE = 16-Pin

Plastic Dip

SE = 16-Pin

Small SO

WE – 16-Pin

Wide SO

Typical Operating Circuit appears at end of data sheet.

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.

Summary of content (26 pages)

PAGE 1
9-0942; Rev 3; 5/10 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.
PAGE 2
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
PAGE 3
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.
PAGE 4
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) .......
PAGE 5
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.
PAGE 6
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.
PAGE 7
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.
PAGE 8
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.
PAGE 9
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.
PAGE 10
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.
PAGE 11
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 Pl
PAGE 12
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) .......
PAGE 13
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.
PAGE 14
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 ICL76XXE 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.
PAGE 15
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.
PAGE 16
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 ICL76XXB 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 ICL76XXE IQ = 10µA (Note 7) IQ = 1mA (Note 8) Input Resistance TYP ICL76XXC 1.4 1.4 1.
PAGE 17
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 ICL76XXB MIN TYP MAX ICL76XXC MIN TYP ICL76XXE 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.
PAGE 18
ICL761X–ICL764X Single/Dual/Triple/Quad Operational Amplifiers Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.
PAGE 19
Single/Dual/Triple/Quad Operational Amplifiers ______________________________________________________________________________________ 19 ICL761X–ICL764X Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.
PAGE 20
ICL761X–ICL764X Single/Dual/Triple/Quad Operational Amplifiers Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.
PAGE 21
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.
PAGE 22
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).
PAGE 23
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 + 2.2MΩ 10kΩ VIN TO SUCCEEDING INPUT STAGE 1 ⁄2 ICL7621 + 1MΩ V- 20kΩ 10µF 20kΩ - V+ 1.
PAGE 24
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.
PAGE 25
Single/Dual/Triple/Quad Operational Amplifiers Package Information For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. PACKAGE TYPE PACKAGE CODE DOCUMENT NO.
PAGE 26
ICL761X–ICL764X Single/Dual/Triple/Quad Operational Amplifiers Revision History REVISION NUMBER REVISION DATE 2 4/08 Removed all part numbers offered in die form from the Ordering Information 2, 11 3 5/10 Corrected letter grades in EC table headings 13–17 DESCRIPTION PAGES CHANGED Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied.