19-0960; Rev 2; 1/00
Chopper-Stabilized Op Amps
General Description
Maxim鈥檚 ICL7650/ICL7653 are chopper-stabilized
amplifiers, ideal for low-level signal processing applica-
tions. Featuring high performance and versatility, these
devices combine low input offset voltage, low input bias
current, wide bandwidth, and exceptionally low drift
over time and temperature. Low offset is achieved
through a nulling scheme that provides continuous
error correction. A nulling amplifier alternately nulls
itself and the main amplifier. The result is an input offset
voltage that is held to a minimum over the entire operat-
ing temperature range.
The ICL7650B/ICL7653B are exact replacements for
Intersil鈥檚 ICL7650B/ICL7653B. These devices have a
10碌V max offset voltage, a 0.1碌V/掳C max input offset
voltage temperature coefficient, and a 20pA max bias
current鈥攁ll specified over the commercial temperature
range.
A 14-pin version is available that can be used with
either an internal or external clock. The 14-pin version
has an output voltage clamp circuit to minimize over-
load recovery time.
Features
o
ICL7650/53 are Improved Second Sources to
ICL7650B/53B
o
Lower Supply Current: 2mA
o
Low Offset Voltage: 1碌V
o
No Offset Voltage Trimming Needed
o
High-Gain CMRR and PSRR: 120dB min
o
Lower Offset Drift with Time and Temperature
o
Extended Common-Mode Voltage Range
o
Low DC Input Bias Current: 10pA
o
Monolithic, Low-Power CMOS Design
ICL7650/ICL7650B/ICL7653/ICL7653B
Ordering Information
PART
ICL7650CSA
ICL7650CSD
ICL7650CPA
ICL7650CPD
ICL7650CTV
ICL7650C/D
ICL7650IJA
ICL7650IJD
ICL7650MTV
ICL7650MJD
ICL7650BCSA
ICL7650BCSD
ICL7650BCPA
ICL7650BCPD
ICL7650BCTV
ICL7650BC/D
ICL7653CSA
ICL7653CPA
TEMP. RANGE
0掳C to +70掳C
0掳C to +70掳C
0掳C to +70掳C
0掳C to +70掳C
0掳C to +70掳C
0掳C to +70掳C
-20掳C to +85掳C
-20掳C to +85掳C
-55掳C to +125掳C
-55掳C to +125掳C
0掳C to +70掳C
0掳C to +70掳C
0掳C to +70掳C
0掳C to +70掳C
0掳C to +70掳C
0掳C to +70掳C
0掳C to +70掳C
0掳C to +70掳C
0掳C to +70掳C
-20掳C to +85掳C
-55掳C to +125掳C
0掳C to +70掳C
0掳C to +70掳C
0掳C to +70掳C
PIN-PACKAGE
8 SO
14 SO
8 Plastic DIP
14 Plastic DIP
8 TO-99
Dice
8 CERDIP
14 CERDIP
8 CERDIP
14 CERDIP
8 SO
14 SO
8 Plastic DIP
14 Plastic DIP
8 TO-99
Dice
8 SO
8 Plastic DIP
8 TO-99
8 CERDIP
8 CERDIP
8 SO
8 Plastic DIP
8 TO-99
Applications
Condition Amplifier
Precision Amplifier
Instrumentation Amplifier
Thermocouples
Thermistors
Strain Gauges
Typical Operating Circuit
CLAMP
INPUT
OUTPUT
ICL7650
ICL7653
R
C
INVERTING AMPLIFIER
WITH OPTIONAL CLAMP
C
ICL7653CTV
ICL7653IJA
ICL7653MTV
ICL7653BCSA
ICL7653BCPA
ICL7653BCTV
Pin Configurations appear at end of data sheet.
________________________________________________________________
Maxim Integrated Products
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For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
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