TSM972ESA+

Overview

The TSM972ESA+ is a dual, low-voltage, micropower analog comparator from Silicon Labs. It operates on single supplies of +2.5V to +11V or dual supplies of ±1.25V to ±5.5V. The device draws a maximum supply current of 4μA over the temperature range. It features open-drain output stages and an input voltage range that includes the negative supply rail.

Feature Summary

• Dual-channel configuration with ultra-low quiescent current consumption
• Open-drain outputs enabling wired-OR logic applications
• Wide common-mode input voltage range extending to the negative supply rail

Applications

• Threshold detectors
• Window comparators
• Level translators
• Oscillator circuits
• Battery-powered systems

Procurement Notes

Verify the specific suffix 'E' for industrial temperature range (-40°C to +85°C) and 'SA' for SOIC-8 package. Confirm RoHS compliance status as per the latest datasheet revision. Check for alternate source availability against original MAX972 specifications. Ensure ordering quantities match available carrier options such as tubes or tape and reel.

Selection Notes

Select this component when dual independent comparison is required within a single package. It serves as a direct form-factor and electrical replacement for the Maxim MAX972. Consider the open-drain output limitation which requires external pull-up resistors for high-level signaling. Evaluate power supply constraints against the specified 2.5V minimum operating voltage.

Part Context

This part belongs to the TSM97x/98x family of analog comparators manufactured by Silicon Laboratories. The family includes single, dual, and quad variants designed for low-power applications. These devices are electrically and physically identical to the legacy MAX97x series, ensuring pin compatibility and functional equivalence across the product line.

Replacement Considerations

TSM971ESA+, TSM973ESA+, TSM982ESA+