TSM973CSA+

Overview

The TSM973CSA+ is a dual-channel, low-voltage micropower analog comparator manufactured by Silicon Laboratories. It operates from single supplies of +2.5V to +11V or dual supplies of ±1.25V to ±5.5V. The device features an internal 1.182V reference voltage with ±1% accuracy and supports 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 and is designed for applications requiring ultra-low quiescent current.

Feature Summary

• Dual comparators with integrated 1.182V reference
• Ultra-low quiescent current consumption
• Adjustable hysteresis capability
• Open-drain outputs for wired-OR logic

Applications

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

Procurement Notes

Verify the specific suffix 'CSA+' against official documentation to confirm the package type (SOIC) and temperature range (0°C to +70°C). Confirm lead-free status as standard for this product line. Ensure compatibility with existing MAX973 designs if used as a drop-in replacement.

Selection Notes

Select this part when a dual comparator with an internal reference is required. It is suitable for single-supply 3V or 5V applications. Consider the open-drain output limitation for pull-up requirements. Verify that the input common-mode range meets the signal requirements relative to the negative supply rail.

Part Context

This component belongs to the TSM97x/98x family of analog comparators. It is electrically and form-factor identical to the Maxim Integrated MAX973. The family includes single, dual, and quad variants with varying reference accuracies and hysteresis options.

Replacement Considerations

TSM973CSA+ is an alternate source for the MAX973CSA. Both devices share identical electrical characteristics and pinouts.