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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8MSOP
- Series：TSM97x
- Mfr：Silicon Labs
- Package：Tube
- Type：General Purpose
- Number of Elements：2
- 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 TSM972CUA+ is a dual-channel, ultra-low-power analog comparator manufactured by Silicon Labs. It operates on single supplies from +2.5V to +11V or dual supplies of ±1.25V to ±5.5V. The device draws a maximum quiescent current of 4μA over temperature and features open-drain outputs suitable for wired-OR configurations. It provides a propagation delay of 12μs at 10mV overdrive and supports an input common-mode voltage range extending from the negative supply rail to within 1.3V of the positive rail.
Feature Summary
- Dual-channel architecture with open-drain output stages enabling wired-OR logic applications
- Ultra-low quiescent current consumption optimized for battery-powered systems
- Wide input common-mode voltage range including 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+' against official datasheets to confirm the commercial temperature range (0°C to +70°C) and MSOP/SOIC package type. Confirm lead-free status as per manufacturer specifications. Cross-reference ordering numbers with authorized distributors to ensure authenticity and traceability.
Selection Notes
Select this component when a dual-channel comparator with minimal power consumption is required. It is suitable for designs needing open-drain outputs for bus sharing. Note that it lacks an internal reference voltage; use TSM973 if an integrated reference is necessary. Ensure the application voltage stays within the specified 2.5V to 11V single-supply limits.
Part Context
This part belongs to the TSM97x/98x family of low-voltage micropower analog comparators. It serves as an alternate source for the Maxim Integrated MAX972. The family includes single, dual, and quad variants with varying internal reference and hysteresis capabilities, all sharing similar electrical characteristics and form factors.
Replacement Considerations
TSM972CUA+ is electrically and form-factor identical to the MAX972CUA+. Verify pinout compatibility and operating voltage ranges before substitution.
FAQ
Does the TSM972CUA+ include an internal voltage reference?
No, the TSM972 does not have an internal reference. Use the TSM973 if an internal 1.182V reference is required.
How is hysteresis implemented on the TSM972?
The TSM972 lacks a dedicated HYST pin. Hysteresis must be generated externally using positive feedback resistors connected between the output and the non-inverting input.
