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Product Detailed Parameters
- Description：IC COMPARATOR 1 W/VOLT REF 8SOIC
- Series：TSM92x
- Mfr：Silicon Labs
- Package：Tape & Reel (TR)
- Type：with Voltage Reference
- Number of Elements：1
- Output Type：CMOS, Rail-to-Rail, 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)：4.5µA
- CMRR, PSRR (Typ)：80dB CMRR, 80dB PSRR
- Propagation Delay (Max)：12µs
- Hysteresis：50mV
- Operating Temperature：0°C ~ 70°C
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The TSM923CSA+T is a dual-channel analog comparator from the TSM921-TSM924 family, manufactured by Silicon Labs. It operates on single supplies of +2.5V to +11V or dual supplies of ±1.25V to ±5.5V. The device features an internal 1.182V ±1% reference voltage and adjustable hysteresis via a dedicated pin. Quiescent current is less than 2.5μA per comparator over temperature. Propagation delay is 12μs at 10mV overdrive. Output stages are push-pull, TTL/CMOS-compatible, and capable of sourcing up to 40mA continuously. Input offset voltage is ±10mV. It is housed in an 8-pin SOIC package.
Feature Summary
- Dual comparators with integrated 1.182V reference
- Ultra-low quiescent current consumption
- Adjustable external hysteresis capability
- Push-pull outputs with high current drive
Applications
- Threshold detectors
- Window comparators
- Level translators
- Oscillator circuits
- Battery-powered systems
Procurement Notes
Verify the specific suffix CSA+T against official documentation to confirm the 8-pin SOIC tube-to-tape-and-reel transition and lead-free status. Confirm the C grade indicates the 0°C to +70°C operating range. Ensure compatibility with existing PCB footprints for the 8-SOIC package before procurement.
Selection Notes
Select this component when dual comparators with an internal reference are required in a low-power application. It is suitable for designs needing adjustable hysteresis without complex feedback networks. Verify that the 12μs propagation delay meets timing requirements. Ensure the supply voltage stays within the specified 2.5V to 11V single-supply range.
Part Context
This part belongs to the TSM92x family of ultra-low-power comparators. It is electrically and form-factor identical to the MAX921-MAX924 family. The TSM923 specifically provides two comparators, an internal reference, and adjustable hysteresis in an 8-pin package, distinguishing it from the single-input TSM921 and quad-input TSM924.
Replacement Considerations
The datasheet states electrical and form-factor identity with the MAX921-MAX924 family. Cross-reference with Maxim Integrated (now Analog Devices) MAX923ESA+ or MAX923ESA+T for potential direct replacements.
