icl7650csdt Maxim Integrated Products, Inc., icl7650csdt Datasheet

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icl7650csdt

Manufacturer Part Number
icl7650csdt
Description
Chopper-stabilized Op Amps
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
Maxim’s 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’s ICL7650B/ICL7653B. These devices have a
10µV max offset voltage, a 0.1µV/°C max input offset
voltage temperature coefficient, and a 20pA max bias
current—all 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.
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.
19-0960; Rev 2; 1/00
INPUT
Condition Amplifier
Precision Amplifier
Instrumentation Amplifier
Thermocouples
Thermistors
Strain Gauges
Typical Operating Circuit
________________________________________________________________ Maxim Integrated Products
General Description
C
CLAMP
ICL7650
ICL7653
R
C
Applications
INVERTING AMPLIFIER
WITH OPTIONAL CLAMP
OUTPUT
Chopper-Stabilized Op Amps
o ICL7650/53 are Improved Second Sources to
o Lower Supply Current: 2mA
o Low Offset Voltage: 1µV
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
Pin Configurations appear at end of data sheet.
ICL7650CSA
ICL7650CSD
ICL7650CPA
ICL7650CPD
ICL7650CTV
ICL7650C/D
ICL7650IJA
ICL7650IJD
ICL7650MTV
ICL7650MJD
ICL7650BCSA
ICL7650BCSD
ICL7650BCPA
ICL7650BCPD
ICL7650BCTV
ICL7650BC/D
ICL7653CSA
ICL7653CPA
ICL7653CTV
ICL7653IJA
ICL7653MTV
ICL7653BCSA
ICL7653BCPA
ICL7653BCTV
ICL7650B/53B
PART
TEMP. RANGE
-20°C to +85°C
-20°C to +85°C
-55°C to +125°C
-55°C to +125°C
-20°C to +85°C
-55°C to +125°C
Ordering Information
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°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
Features
1

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icl7650csdt Summary of contents

Page 1

Rev 2; 1/00 General Description Maxim’s 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 ...

Page 2

Chopper-Stabilized Op Amps ABSOLUTE MAXIMUM RATINGS Total Supply Voltage (V+ to V-)..............................................18V Input Voltage ........................................(V+ + 0.3V) to (V- - 0.3V) Voltage on Oscillator Control Pins (except EXT/CLOCK IN)............................................. Voltage on EXT/CLOCK IN ..................(V+ + 0.3V) to (V+ ...

Page 3

ELECTRICAL CHARACTERISTICS—ICL7650B/ICL7653B (continued) (Circuit of Figure +5V -5V, T PARAMETER SYMBOL Internal Chopping Frequency Clamp On Current (Note 4) Clamp Off Current (Note 4) Offset Voltage vs. Time · Note ...

Page 4

Chopper-Stabilized Op Amps ELECTRICAL CHARACTERISTICS—ICL7650/ICL7653 (continued) (Circuit of Figure +5V -5V PARAMETER SYMBOL Common-Mode Rejection Ratio CMRR Power-Supply Rejection Ratio PSRR Input Noise Voltage e np-p Input Noise Current I n Unity-Gain Bandwidth ...

Page 5

Figure +5V -5V, T SUPPLY CURRENT vs. AMBIENT TEMPERATURE -50 - 100 125 AMBIENT TEMPERATURE (°C) INPUT OFFSET VOLTAGE CHANGE vs. SUPPLY VOLTAGE -3 -2 ...

Page 6

Chopper-Stabilized Op Amps ICL7650 C ICL7653 0.1µF 0.1µF Figure 1. ICL7650 Test Circuit Detailed Description Figure 2 shows the major elements of the ICL7650/ ICL7653. Two amplifiers are illustrated, the main amplifi- er ...

Page 7

Nulling Capacitor Connection Separate pins are provided for C the ICL7650. If you do not need the clamp feature, order the ICL7653; this device only offers the C and will produce slightly lower noise and improved AC common-mode rejection. If ...

Page 8

Chopper-Stabilized Op Amps Low-leakage, high-impedance CMOS inputs allow the ICL7650/ICL7653 to measure high-impedance sources. Stray leakage paths can decrease input resistance and increase input currents unless inputs are guarded. Boards must be thoroughly cleaned with TCE or alcohol and blown ...

Page 9

The 14-pin DIP configuration has been specifically designed to ease input guarding. The pins adjacent to the inputs are not used. Pin Compatibility The ICL7653’s pinout generally corresponds to that of industry-standard 8-pin devices such as the LM741 or LM101. ...

Page 10

Chopper-Stabilized Op Amps 0.1µF 0.1µF C INPUT R C ICL7650 R2 CLAMP (R1 || R2) > 100kΩ FOR FULL CLAMP EFFECT R1 NOTE INDICATES THE PARALLEL COMBINATION R2. Figure 6. Noninverting ...

Page 11

TOP VIEW INT/EXT EXTB EXT/CLK IN EXTA N.C. (GUARD INT/CLK OUT MAX7650 -INPUT +INPUT 5 10 OUTPUT N.C. (GUARD CLAMP RETN SO/DIP/CERDIP N.C. ...

Page 12

Chopper-Stabilized Op Amps Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at ...

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