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Product Detailed Parameters
- Description：IC COMPARATOR W/REF LP 8MSOP
- Series：-
- Mfr：Touchstone Semiconductor
- Package：Cut Tape (CT)
- Type：with Voltage Reference
- Number of Elements：1
- Output Type：CMOS, Push-Pull, TTL
- Voltage - Supply, Single/Dual (±)：2.5V ~ 11V, ±1.25V ~ 5.5V
- Voltage - Input Offset (Max)：10mV @ 2.5V
- Current - Input Bias (Max)：-
- Current - Output (Typ)：40mA
- Current - Quiescent (Max)：3.2µA
- CMRR, PSRR (Typ)：80dB CMRR, 80dB 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 TSM931CUA+T is a single ultra-low-power analog comparator from the TSM93x family, manufactured by Touchstone Semiconductor (Silicon Labs). It operates on single supplies of +2.5V to +11V or dual supplies of ±1.25V to ±5.5V. Key electrical parameters include a maximum quiescent current of 4µA, a propagation delay of 12µs at 10mV overdrive, and a continuous source current capability of 40mA. The device features an internal 1.182V ±2% voltage reference and push-pull TTL/CMOS-compatible outputs. It is housed in an 8-MSOP package.
Feature Summary
- Ultra-low quiescent current consumption for battery-powered applications
- Integrated internal 1.182V ±2% voltage reference
- Push-pull outputs compatible with TTL and CMOS logic levels
- Input voltage range includes the negative supply rail
Applications
- Single-supply sensor signal conditioning
- Battery-operated monitoring circuits
- Threshold detection systems
Procurement Notes
Verify component authenticity as this part is listed as End-of-Life (EOL) by the manufacturer. Confirm that the supplier provides valid traceability documentation. Check for alternative sources such as Silicon Labs equivalents if new production availability is required. Ensure the 8-MSOP package matches the design footprint requirements.
Selection Notes
Select this component for designs requiring minimal power consumption and an integrated reference voltage. It serves as an alternate source for the MAX931 family. Consider the 12µs propagation delay when designing high-speed threshold detection circuits. Verify that the 40mA output drive capability meets the load requirements.
Part Context
The TSM931CUA+T belongs to the TSM93x series of low-voltage micropower analog comparators. This family is electrically and form-factor identical to the Maxim Integrated MAX931-MAX934 series. The TSM931 variant specifically integrates a single comparator with an internal reference, distinguishing it from the dual (TSM932/TSM933) and quad (TSM934) configurations.
Replacement Considerations
Public confirmed substitute part numbers: MAX931ESA+. Note that the MAX931 is the original design equivalent.
