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Product Detailed Parameters
- Description：IC COMPARATOR 1 W/VOLT REF 8SOIC
- Series：TSM92x
- Mfr：Silicon Labs
- Package：Tube
- 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 TSM923ESA+ is a dual-channel analog comparator from the TSM92x 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. Outputs are push-pull TTL/CMOS-compatible with continuous source current capability of 40mA. Input voltage range includes the negative supply rail.
Feature Summary
- Dual comparators with integrated 1.182V reference
- Adjustable external hysteresis control
- Push-pull outputs capable of sourcing 40mA
- Ultra-low quiescent current consumption
Applications
- Threshold detectors
- Window comparators
- Level translators
- Oscillator circuits
- Battery-powered systems
Procurement Notes
Verify component authenticity through authorized distributors. Confirm package marking matches TS923E for the E-grade variant. Check datasheet revisions for potential updates. Ensure environmental compliance documentation aligns with project requirements. Validate lead-free status as specified in manufacturer ordering information.
Selection Notes
Select this part when dual comparators with an internal reference are required. The adjustable hysteresis feature simplifies noise immunity design. High output drive capability allows direct LED driving without additional buffers. Low power consumption makes it suitable for battery-operated applications requiring extended operational life.
Part Context
This component belongs to the TSM921-TSM924 family of ultra-low-power comparators. It is electrically and form-factor identical to the MAX921-MAX924 family. The 'ESA+' suffix indicates an industrial temperature range (-40°C to +85°C) and SOIC-8 packaging. The '+' denotes lead-free manufacturing compliance.
Replacement Considerations
The TSM923 is functionally equivalent to the Maxim Integrated MAX923. Verify pinout compatibility and electrical specifications before substitution. Ensure the replacement supports the required supply voltage range and output drive current.
