1

File Number

3403.3

ICL7621, ICL7641, ICL7642

Dual/Quad, Low Power CMOS Operational

Amplifiers

The ICL761X/762X/764X series is a family of monolithic

CMOS operational amplifiers. These devices provide the

designer with high performance operation at low supply

voltages and selectable quiescent currents. They are an

ideal design tool when ultra low input current and low power

dissipation are desired.

The basic amplifier will operate at supply voltages ranging

from

±1V to ±8V, and may be operated from a single Lithium

cell. The output swing ranges to within a few millivolts of the

supply voltages.

The quiescent supply current of these amplifiers is set to 3

different ranges at the factory. Both amps of the dual

10

µA respectively. This results in power consumption as low

as 20

µW per amplifier.

Of particular significance is the extremely low (1pA) input

current, input noise current of 0.01pA/

impedance. These features optimize performance in very

high source impedance applications.

The inputs are internally protected. Outputs are fully

protected against short circuits to ground or to either supply.

AC performance is excellent, with a slew rate of 1.6V/

µs, and

Because of the low power dissipation, junction temperature

rise and drift are quite low. Applications utilizing these

features may include stable instruments, extended life

designs, or high density packages.

Features

• Wide Operating Voltage Range . . . . . . . . . . .

±1V to ±8V

Ω

• Input Current Lower Than BIFETs . . . . . . . . . . . 1pA (Typ)

• Output Voltage Swing . . . . . . . . . . . . . . . . . . . . V+ and V-

• Available as Duals and Quads (Refer to ICL7611 for Singles)

• Low Power Replacement for Many Standard Op Amps

Applications

• Portable Instruments

• Telephone Headsets

• Hearing Aid/Microphone Amplifiers

• Meter Amplifiers

• Medical Instruments

• High Impedance Buffers

Pinouts

ICL7621 (PDIP, SOIC)

TOP VIEW

ICL7621 (METAL CAN)

TOP VIEW

ICL7641 (PDIP), ICL7642 (PDIP)

TOP VIEW

Ordering Information

PART NUMBER

TEMP.

PACKAGE

PKG.

NO.

ICL7621ACPA

0 to 70

8 Ld PDIP -

E8.3

ICL7621BCPA

0 to 70

8 Ld PDIP -

E8.3

ICL7621DCPA

0 to 70

8 Ld PDIP -

E8.3

ICL7621AMTV

-55 to 125

8 Pin Metal Can -

T8.C

ICL7621DCBA

0 to 70

8 Ld SOIC -

M8.15

ICL7621DCBA-T

0 to 70

8 Ld SOIC - D Grade -

Tape and Reel -

M8.15

ICL7641ECPD

0 to 70

14 Ld PDIP - E Grade -

E14.3

ICL7642ECPD

0 to 70

14 Ld PDIP - E Grade -

E14.3

V-

1

2

3

4

8

7

6

5

V+

-

-

V+

V-

8

7

1

2

3

4

5

6

V+

V-

1

2

3

4

5

6

7

14

13

12

11

10

9

8

Data Sheet

April 1999

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

http://www.intersil.com or 407-727-9207