MAX4470EUK+T

Instrumentation, Op Amps, Buffer Amps Overview

The MAX4470EUK+T is a single-channel micropower operational amplifier from the MAX4464/MAX4470 family, manufactured by Analog Devices/Maxim Integrated. It operates on a single supply voltage ranging from +1.8V to +5.5V with a typical supply current of 750nA per amplifier. The device features ground-sensing inputs and rail-to-rail output capabilities, allowing it to drive loads close to the supply rails. It is unity-gain stable with a gain-bandwidth product of 9kHz and a slew rate of 2V/ms. The component is housed in a 5-pin SOT-23 package and supports an operating temperature range from -40°C to +85°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Ultra-low power consumption with 750nA supply current per amplifier
• Ground-sensing input common-mode range extending to negative rail
• Rail-to-rail output stage capable of sourcing and sinking load current
• Unity-gain stability for closed-loop configurations

Instrumentation, Op Amps, Buffer Amps Applications

• Single lithium ion battery systems
• Two-cell NiCd or alkaline battery powered devices
• Portable instrumentation
• Micropower thermostats
• Remote sensor active badges

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix 'EUK' corresponds to the SOT-23 package and the '-40°C to +85°C' temperature grade before procurement. Confirm RoHS compliance status via the manufacturer's official documentation. Ensure the design accounts for the 750nA quiescent current and 9kHz bandwidth limitations during circuit simulation.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for applications requiring minimal power draw from low-voltage sources. The ground-sensing input allows operation when the signal source is referenced to the negative supply rail. Verify that the 9kHz bandwidth meets the signal frequency requirements, as higher-speed amplifiers like the MAX4464 are available within the same family for faster signals.

Instrumentation, Op Amps, Buffer Amps Part Context

The MAX4470 belongs to a family of micropower op amps including dual (MAX4471) and quad (MAX4472) variants. These devices share similar electrical characteristics but differ in channel count and package options such as SC70, WLP, and TSSOP. The MAX4470 specifically provides a single amplifier configuration optimized for space-constrained, battery-operated portable electronics.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The MAX4471EUK+T serves as a dual-channel replacement if additional channels are required, while maintaining identical electrical performance. The MAX4472EUD+T offers a quad-channel solution in a larger package. For higher bandwidth needs, the MAX4464 series provides 40kHz GBW but requires a minimum stable gain of +5V/V.