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Product Detailed Parameters
- Description：IC COMP SNGL CMOS TTL 16SOIC
- Series：TSM97x
- Mfr：Touchstone Semiconductor
- Package：Cut Tape (CT)
- Type：with Voltage Reference
- Number of Elements：1
- Output Type：Open-Drain
- Voltage - Supply, Single/Dual (±)：2.5V ~ 11V, ±1.25V ~ 5.5V
- Voltage - Input Offset (Max)：10mV @ 2.5V
- Current - Input Bias (Max)：0.005µA @ 2.5V
- Current - Output (Typ)：40mA
- Current - Quiescent (Max)：4µA
- CMRR, PSRR (Typ)：67dB CMRR, 67dB PSRR
- Propagation Delay (Max)：12µs
- Hysteresis：50mV
- Operating Temperature：0°C ~ 70°C
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-MSOP
- Grade：-
- Qualification：-
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Overview
The TSM971CUA+T is a single-channel, ultra-low-power analog comparator manufactured by Touchstone Semiconductor (Silicon Labs). It operates on single supplies from +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 open-drain outputs suitable for wired-OR configurations. Key electrical parameters include a maximum supply current of 4μA over temperature, a propagation delay of 12μs at 10mV overdrive, and an input offset voltage of ±10mV. It is housed in an 8-pin MSOP package.
Feature Summary
- Ultra-low quiescent current consumption optimized for battery-powered applications
- Integrated 1.182V precision voltage reference with adjustable external hysteresis capability
- Open-drain output stages enabling wired-OR logic and level-shifting functionality
Applications
- Threshold detectors
- Window comparators
- Level translators
- Oscillator circuits
- Battery-powered systems
Procurement Notes
Verify the specific suffix 'CUA+T' against official documentation to confirm the commercial temperature range and tape-and-reel packaging format. Confirm that the manufacturer designation aligns with Silicon Laboratories specifications. Ensure compatibility with existing board layouts regarding the 8-pin MSOP footprint before finalizing procurement orders.
Selection Notes
Select this component when a single comparator with an integrated reference is required for low-power designs. It serves as an alternate source for Maxim Integrated MAX971 devices. Consider the open-drain output requirement for pull-up resistor implementation. Verify that the 12μs propagation delay meets system timing constraints.
Part Context
This part belongs to the TSM97x family of micropower analog comparators. It is electrically and form-factor identical to the Maxim Integrated MAX971 series. The family includes single, dual, and quad variants with varying reference accuracies and hysteresis options, all sharing similar low-voltage operational characteristics.
Replacement Considerations
Public confirmed substitute: MAX971CUA+T.
