FN3403 Rev.5.00

Page 1 of 9

Mar 4, 2010

FN3403

Rev.5.00

Mar 4, 2010

ICL7621

Dual, Low Power CMOS Operational Amplifiers

DATASHEET

The ICL761X/762X 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

100µA at the factory. This results in power consumption as

low as 200µW 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.

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



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

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

• Available as Duals (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

(8 LD PDIP, SOIC)

TOP VIEW

Ordering Information

PART

NUMBER

PART

MARKING

TEMP.

RANGE

(°C)

PACKAGE

PKG.

DWG. #

ICL7621DCPA

7621 DCPA

0 to +70 8 Ld PDIP -

E8.3

ICL7621DCPAZ*

(Note 2)

7621 DCPAZ 0 to +70 8 Ld PDIP -

E8.3

ICL7621DCBA

(Note 1)

7621 DCBA

0 to +70 8 Ld SOIC -

M8.15

ICL7621DCBAZ

(Notes 1, 2)

7621 DCBAZ 0 to +70 8 Ld SOIC -

M8.15

*Pb-free PDIPs can be used for through hole wave solder processing only.

They are not intended for use in Reflow solder processing applications.

NOTES:

1. Add “-T” suffix for tape and reel. Please refer to TB347 for details on reel

specifications.

2. These Intersil Pb-free plastic packaged products employ special Pb-

free material sets, molding compounds/die attach materials, and 100%

matte tin plate plus anneal (e3 termination finish, which is 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.

V-

1

2

3

4

8

7

6

5

V+

-

-