MAX494EPD

Instrumentation, Op Amps, Buffer Amps Overview

The MAX494EPD is a quad operational amplifier from the MAX492/MAX494/MAX495 family, manufactured by Analog Devices Inc./Maxim Integrated. It features rail-to-rail input and output operation with a gain-bandwidth product of 500kHz. The device operates on a single supply voltage ranging from +2.7V to +6V or split supplies of ±1.35V to ±3V. Each amplifier draws less than 150µA of quiescent current while maintaining high DC accuracy. The component is housed in a 14-pin Plastic DIP package and supports an operating temperature range of -40°C to +85°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Rail-to-rail input common-mode voltage range extending beyond supply rails without phase reversal
• Rail-to-rail output swing capability for maximum dynamic range in low-voltage applications
• Low quiescent supply current per amplifier suitable for battery-powered equipment
• High voltage gain and excellent power-supply rejection ratio

Instrumentation, Op Amps, Buffer Amps Applications

• Portable Equipment
• Battery-Powered Instruments
• Data Acquisition Systems
• Signal Conditioning Circuits
• Low-Voltage Applications

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'EPD' corresponds to the 14-pin Plastic DIP package and the extended temperature grade (-40°C to +85°C). Confirm that the manufacturer's status indicates this part is not recommended for new designs due to process availability constraints. Ensure compatibility with existing system layouts before procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when four independent amplifiers are required within a single package. It is appropriate for designs needing rail-to-rail signal handling at low supply voltages. Consider the 500kHz bandwidth and low noise characteristics for precision signal paths. Verify that the 14-pin DIP footprint matches the target PCB design constraints.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the MAX492/MAX494/MAX495 series of micropower, single-supply rail-to-rail op amps. The MAX494 specifically provides four amplifiers in one package, whereas the MAX492 offers two and the MAX495 offers one. All variants share identical electrical characteristics and pinout configurations for individual channels.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The datasheet notes that the MAX495 was manufactured using a process no longer available and suggests consulting Maxim for replacement options or industry second-sources. No specific substitute part numbers are listed in the provided documentation.