ICL7611

1.4MHz, Low Power CMOS Operational Amplifiers

Product Status: Mass Production

OVERVIEW

The ICL761X series is a family of CMOS operational amplifiers. These devices provide the designer with high performance operation at low supply voltages and selectable quiescent currents, and 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.

A unique quiescent current programming pin allows setting of standby current to 1mA, 100µA, or 10µA, with no external components. This results in power consumption as low as 20µW. The output swing ranges to within a few millivolts of the supply voltages.

Of particular significance is the extremely low (1pA) input current, input noise current of 0.01pA/√Hz, and 1012 Ω input 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 unity gain bandwidth of 1MHz at IQ = 1mA.

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.

KEY FEATURES

  • Wide Operating Voltage Range: ±1V to ±8V
  • High Input Impedance: 1012
  • Programmable Power Consumption: Low as 20µW
  • Input Current Lower Than BIFETs: 1pA (Typ)
  • Output Voltage Swing: V+ and V-
  • Input Common Mode Voltage Range Greater Than Supply Rails (ICL7612)
  • Pb-Free Plus Anneal Available (RoHS Compliant)

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ICL7611
Basic Information
Production Status
Mass Production
# of Devices/ Channels
1
Bandwidth (MHz)
1.4
Slew Rate (V/μs)
1.6
VS (min)
2 V
VS (max)
16 V
IS (per amp)
0.01 mA
Noise VN (nV/√Hz)
100
IBIAS
1 pA
IBIAS (max)
50 pA
Max Offset Voltage
4 mV
IOUT
40 mA
VOUT (V)
9.8
Rail-to-Rail Input
No
Rail-to-Rail Output
No
PSRR (dB)
94
CMRR (dB)
96
Thermal Shutdown
No
Gain Min
1
AVOL (dB)
104
Enable
No
Qualification Level
Standard
Can Sample
YES
Temperature Range
0 to +70

Below you will find information to support the development of your application.

You can find an explanation of orderable part numbers here.

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Hardware Design Support

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