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Product Detailed Parameters
- Description：IC COMPARATOR 1 W/VOLT REF 8MSOP
- 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-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 TSM921CUA+T is a single-channel analog comparator from the Silicon Labs TSM92x family, housed in an 8-pin MSOP package. It operates on single supplies of +2.5V to +11V or dual supplies of ±1.25V to ±5.5V. The device features ultra-low quiescent current, drawing typically 3.2μA at +25°C and up to 4μA over the full temperature range. It includes an internal 1.182V ±1% reference voltage and supports adjustable hysteresis via a dedicated pin. The push-pull output stage provides TTL/CMOS compatibility with continuous source current capability of 40mA and propagation delay of 12μs at 10mV overdrive.
Feature Summary
- Ultra-low power consumption with supply current under 4μA across operating temperatures
- Integrated 1.182V precision voltage reference for simplified circuit design
- Adjustable external hysteresis capability via dedicated control pin
- Push-pull outputs capable of sourcing 40mA with TTL/CMOS compatibility
Applications
- Threshold detectors
- Window comparators
- Level translators
- Oscillator circuits
- Battery-powered systems
Procurement Notes
Verify the specific suffix 'CUA+T' corresponds to the commercial temperature range (0°C to +70°C) and tape-and-reel packaging format. Confirm that the lead-free designation aligns with current environmental compliance requirements. Ensure the ordering quantity matches the standard reel size of 2500 units if bulk procurement is intended. Cross-reference the manufacturer part number with distributor databases to confirm availability status.
Selection Notes
Select this component when a single comparator with an integrated reference and adjustable hysteresis is required. It is suitable for low-voltage applications operating between 2.5V and 11V. Consider the 40mA output drive capability for direct load interfacing. Verify that the 12μs propagation delay meets system timing constraints. Ensure the 8-pin MSOP package fits the available board space.
Part Context
This device belongs to the TSM921-TSM924 family of micropower analog comparators. It is electrically and form-factor identical to the Maxim Integrated MAX921-MAX924 series. The family offers single, dual, and quad configurations with varying numbers of internal references and hysteresis options. The TSM921 specifically provides one comparator with a reference and hysteresis control in an 8-pin package.
Replacement Considerations
The MAX921CUA+T is an electrically equivalent substitute from Analog Devices/Maxim Integrated.
