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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, 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-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The TSM921CSA+T is a single-channel, ultra-low-power analog comparator manufactured by Silicon Labs. It operates from a single supply 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 includes a dedicated HYST pin for adjustable external hysteresis. It delivers push-pull TTL/CMOS-compatible outputs with continuous source current capability up to 40mA. Propagation delay is specified at 12μs with a 10mV overdrive. The component is housed in an 8-pin SOIC package.
Feature Summary
- Ultra-low quiescent current consumption optimized for battery-powered systems
- Integrated 1.182V precision voltage reference with dedicated output pin
- Dedicated HYST pin enabling adjustable external hysteresis configuration
- Push-pull output stage capable of sourcing up to 40mA continuously
Applications
- Threshold detectors
- Window comparators
- Level translators
- Oscillator circuits
- Battery-powered systems
Procurement Notes
Verify the specific suffix 'T' indicates tape and reel packaging containing 2500 units per carrier. Confirm the 'C' designation corresponds to the commercial temperature range of 0°C to +70°C. Ensure compatibility with the 8-pin SOIC form factor. Cross-reference the manufacturer part number against official Silicon Labs documentation to validate authenticity and revision status before integration.
Selection Notes
Select this component when a single comparator with an integrated reference and programmable hysteresis is required. It is suitable for applications needing high output drive current while maintaining microampere-level power consumption. Consider the input common-mode range extending to the negative rail and the propagation delay characteristics relative to system timing requirements.
Part Context
This device belongs to the TSM92x family of low-voltage, micropower analog comparators. It is electrically and form-factor identical to the MAX921-MAX924 series. The family includes single, dual, and quad variants, offering flexibility in channel count and reference availability across different package types.
Replacement Considerations
Public confirmed substitute part numbers: MAX921ESA+T, MAX921ESA+.
