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MAX478, MAX479
17µA Max, Dual Quad, Single-Supply, Precision Op Amps
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Status
Description
The MAX478 and MAX479 are dual and quad micro-power, precision op amps available in 8-pin and 14-pin DIP and small-outline packages, respectively. Both devices feature an extremely low, 17µA max supply current per op amp, 70µV max offset voltage, 2.2µV/°C max offset voltage drift (0.5µV/°C typ), and 250pA max input offset current.
The MAX478 and MAX479 operate from a single supply. The input voltage range includes ground, and the output swings to within a few millivolts of ground, which eliminates pull-down resistors and saves power.
Both devices are optimized for single 3V and 5V supply operation, with guaranteed specifications at each supply voltage. Specifications for ±15V operation are also provided.
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Data Sheet
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Key Features
- 17µA Max Supply Current (MAX478A/MAX479A)
- 70µV Max Offset Voltage (MAX478A)
- Single-Supply Operation:
- Input Voltage Range Includes Ground
- Output Swings to Ground While Sinking Current
- No Pull-Down Resistors Required
- Dual Op Amp in 8-Pin DIP/SO Package (MAX478)
- Quad Op Amp in 14-Pin DIP/SO Package (MAX479)
- 250pA Max Input Offset Current (MAX478A/MAX479A)
- 0.5µV/°C Offset-Voltage Drift
- Output Sources and Sinks 5mA Load Current
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Applications/Uses
- Battery- or Solar-Powered Portable Instrumentation Systems
- Battery- or Solar-Powered Remote Sensor Amplifier Systems
- Battery- or Solar-Powered Satellite Circuitry Systems
- Micropower Filters
- Micropower Sample-and-Hold
- Single-Cell Li+ Powered Systems
- Thermocouple Amplifiers
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Diagram
 Typical Operating Circuit
Notes and Comments
Micropower, precision dual 8-pin SO, 3V, 5V, and ±15V specifications (MAX478)
Micropower, precision quad 14-pin narrow SO, 3V, 5V, and ±15V specifications (MAX479)
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Information Index
Document Ref.: 19-0127
Rev 1;
1998-11-01
This page last modified: 2010-08-25
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