MAX5457EEE+T

Overview

The MAX5457EEE+T is a dual digital potentiometer IC manufactured by Analog Devices Inc. (Maxim Integrated). It features two independent 64-tap resistive elements with linear taper characteristics, housed in a 16-lead QSOP surface-mount package. The device operates within a supply voltage range of 2.7V to 5.5V and supports an up/down serial interface for wiper position control. Key electrical specifications include a resistance tolerance of ±25% and a temperature coefficient of 35 ppm/°C at 100kΩ nominal resistance. The component functions as volatile memory devices, retaining settings only while powered.

Feature Summary

• Dual channel configuration with 64 taps per potentiometer
• Linear resistance taper with 100kΩ nominal value
• Up/Down serial interface for wiper adjustment
• Operating temperature range from -40°C to +85°C

Applications

• Programmable gain amplifier circuits
• Voltage reference trimming
• Audio volume control applications requiring linear response

Procurement Notes

Verify the specific suffix 'EEE+T' against official Analog Devices documentation to confirm the tape-and-reel packaging format and lead-free status. Ensure compatibility with standard QSOP-16 footprints during procurement planning. Cross-reference current availability through authorized distributors as stock levels fluctuate.

Selection Notes

Select this component when a dual-channel, linear-taper digital potentiometer is required. The 100kΩ resistance value and ±25% tolerance suit general-purpose analog signal conditioning. Consider the volatile nature of the wiper positions if power-loss retention is necessary, as non-volatile alternatives exist in other Maxim product lines.

Part Context

This part belongs to the MAX545x series of digital potentiometers. It shares the QSOP-16 package form factor with related models like the MAX5455 and MAX5456 but differs in tap count and interface type. The MAX5457 specifically provides dual channels with 64 steps, distinguishing it from single-channel or higher-resolution variants in the family.

Replacement Considerations

Direct replacements include the MAX5457EUD+ for TSSOP-14 packaging compatibility. For pin-compatible upgrades with different interface protocols, evaluate the MAX5456 series, though interface differences require schematic review.