MAX479ACPD

Instrumentation, Op Amps, Buffer Amps Overview

The MAX479ACPD is a quad micro-power, precision operational amplifier manufactured by Analog Devices Inc. (Maxim Integrated). It features an extremely low maximum supply current of 17 µA per op amp and a maximum offset voltage of 70 µV. The device operates from a single supply with an input voltage range that includes ground, allowing the output to swing to within a few millivolts of ground while sinking current. This design eliminates the need for pull-down resistors. The unit is housed in a 14-pin DIP or small-outline package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Quad micro-power architecture optimized for low energy consumption
• Single-supply operation with input range including ground
• Output swings to ground while maintaining current sinking capability
• Precision characteristics with low offset voltage and drift

Instrumentation, Op Amps, Buffer Amps Applications

• Battery-powered portable instrumentation systems
• Remote sensor amplification circuits
• Micropower sample-and-hold applications
• Thermocouple signal conditioning
• Satellite circuitry requiring low power draw

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'CPD' against official manufacturer documentation to confirm pinout compatibility and package type. Ensure the component meets required temperature grades for the intended operating environment. Cross-reference datasheet specifications for offset voltage and supply current limits to validate suitability for precision analog signal processing tasks.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when system design demands minimal quiescent current alongside high precision. The inclusion of ground-referenced input and output capabilities simplifies single-supply designs by removing external biasing components. Evaluate thermal performance and long-term stability requirements against the specified offset voltage drift characteristics before finalizing the schematic.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the MAX478/MAX479 family of micro-power precision op amps. The MAX478 provides dual amplifiers in an 8-pin package, while the MAX479 offers four amplifiers in a 14-pin configuration. Both are designed for optimization at 3V and 5V supply voltages, with guaranteed specifications provided at these levels as well as for ±15V operation.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Check for direct equivalents within the MAX478/MAX479 series. Verify that any substitute maintains the 17 µA supply current limit and 70 µV offset voltage specifications. Ensure the replacement package matches the 14-pin form factor and electrical characteristics for single-supply ground-referenced operation.