1
®
FN3403.5
ICL7621
Dual, Low Power CMOS Operational
Amplifiers
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
fro
m ±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/√
Hz, and 10
12
Ω input
impedance. These features optimize performance in very
high source impedance applications.
The inputs are internally protected. Outpu
ts 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.
Ordering Information
PART
NUMBER
PART
MARKING
TEMP.
RANGE
(°C) PACKAGE
PKG.
DWG
. #
ICL7621DCPA 7621 DCPA 0 to +70 8 Ld PDIP -
D Grade - I
Q
= 100µA
E8.3
ICL7621DCPAZ*
(Note 2)
7621 DCPAZ 0 to +70 8 Ld PDIP -
D Grade - I
Q
= 100µA
E8.3
ICL7621DCBA
(Note 1)
7621 DCBA 0 to +70 8 Ld SOIC -
D Grade - I
Q
= 100µA
M8.15
ICL7621DCBAZ
(Notes 1, 2)
7621 DCBAZ 0 to +70 8 Ld SOIC -
D Grade - I
Q
= 100µA
M8.15
*Pb-free PDIPs can be used for through ho
le wave solder processing only.
They are not intended for use in Reflow solder processing applications.
NOTES:
Add “-T” suffix for tape and reel. Please refer to TB347 for details on reel
specifications.
1.
2. These Intersil Pb-free plastic packaged pr
oducts 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.
Features
• Wide Operating Voltage Range . . . . . . . . . . . ±1V to ±8V
• High Input Impedance . . . . . . . . . . . . . . . . . . . . . . .10
12
Ω
• 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
OUT
A
-IN
A
+IN
A
V-
1
2
3
4
8
7
6
5
V+
OUT
B
-IN
B
+IN
B
+
-
+
-
Data Sheet March 4, 2010
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2001, 2010. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
