TSM973CSA+T

Overview

The TSM973CSA+T is a dual-channel, 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 features an internal 1.182V reference with ±1% accuracy and includes adjustable hysteresis via an external HYST pin. It utilizes open-drain output stages suitable for wired-OR configurations. The component is housed in an 8-pin SOIC package.

Feature Summary

• Dual comparators with integrated 1.182V voltage reference
• Ultra-low quiescent current consumption across temperature ranges
• Adjustable hysteresis capability through dedicated input pin
• Open-drain outputs enabling wired-OR logic applications

Applications

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

Procurement Notes

Verify the specific ordering suffix 'CSA+T' against official documentation to confirm the commercial temperature range and tape-and-reel packaging format. Confirm that the manufacturer designation aligns with current product line structures as legacy part numbers may undergo rebranding or discontinuation notices.

Selection Notes

Select this component when dual independent comparison is required alongside a stable internal reference voltage. The open-drain architecture supports flexible interfacing with various logic families. Ensure the application benefits from the adjustable hysteresis feature to mitigate noise-induced oscillation near trip points.

Part Context

This part belongs to the TSM97x/98x family of ultra-low-power comparators. It serves as a functional equivalent to the MAX973, maintaining electrical and form-factor compatibility. The family covers single, dual, and quad configurations with varying reference accuracies and hysteresis options.

Replacement Considerations

The TSM973CSA+T is electrically identical to the MAX973. Verify pinout compatibility and supply voltage requirements before substituting.