TSM972CSA+

Overview

The TSM972CSA+T 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 temperature. It features open-drain outputs that sink current to the negative supply rail (V-), enabling wired-OR configurations. Input common-mode voltage ranges from V- to V+ minus 1.3V. Propagation delay is 12μs at 10mV overdrive and 4μs at 100mV overdrive.

Feature Summary

• Dual comparators with ultra-low quiescent current consumption suitable for battery-powered systems
• Open-drain output stages allowing for wired-OR logic and level-shifting applications
• Wide input common-mode voltage range extending to the negative supply rail
• Compatible with standard single or dual power supply configurations

Applications

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

Procurement Notes

Verify the specific suffix CSA+ against official documentation to confirm package type and lead-free status. Confirm availability as the component may be subject to discontinuation notices. Ensure the operating temperature range matches the application requirements before procurement.

Selection Notes

Select this part when a dual comparator configuration is required without an internal reference voltage. It is appropriate for designs needing open-drain outputs for wired-OR functionality. Consider the 4μA maximum supply current for strict power budget constraints in portable electronics.

Part Context

This component belongs to the TSM97x/98x family of analog comparators manufactured by Silicon Labs. The family includes single, dual, and quad variants designed for low-voltage, micropower applications. These devices are electrically and form-factor identical to the MAX97x/MAX98x series.

Replacement Considerations

The datasheet identifies the TSM972 as an alternate source for the Maxim Integrated MAX972.