TSM972CUA+T

Overview

The TSM972CUA+T is a dual, low-voltage, micropower analog comparator from the TSM97x family. 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 and features open-drain outputs capable of sinking up to 40mA. It provides a propagation delay of 12μs at 10mV overdrive and accepts input voltages ranging from the negative supply rail to within 1.3V of the positive rail.

Feature Summary

• Dual comparators with open-drain output stages for wired-OR applications
• Ultra-low quiescent current consumption suitable for battery-powered systems
• Wide common-mode input voltage range extending to the negative supply rail
• Compatible with standard TTL and CMOS logic levels

Applications

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

Procurement Notes

Verify the specific suffix 'CUA+T' against manufacturer documentation to confirm the commercial temperature range (0°C to +70°C) and MSOP package configuration. Confirm lead-free status as per the manufacturer's lead-free program. Ensure compatibility with existing circuit designs regarding the open-drain output requirements and pull-up resistor selection.

Selection Notes

Select this component when a dual comparator configuration is required without an internal reference voltage. The TSM972 differs from the TSM971 and TSM973 by lacking an integrated reference and hysteresis control pin. Verify that the application does not require the internal reference found in other family members. Ensure the open-drain output architecture aligns with the system's logic interface requirements.

Part Context

This part belongs to the TSM971/972/973/982/984 family of analog comparators, which are electrically and form-factor identical to the MAX971/MAX972/MAX973/MAX982/MAX984 series. Manufactured by Silicon Laboratories (formerly Touchstone Semiconductor), these devices are designed for low-voltage, micropower applications requiring high flexibility and performance.

Replacement Considerations

The datasheet identifies the MAX972 as an alternate source part number. Verify electrical specifications and pinout compatibility before substitution. Other family members like the TSM971 or TSM973 include additional features such as internal references or hysteresis pins, which may alter circuit behavior if used as direct replacements.