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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8SOIC
- Series：TSM92x
- Mfr：Silicon Labs
- Package：Tube
- Type：General Purpose
- Number of Elements：2
- 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：-
- 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 TSM922CSA+ is a dual, low-voltage, micropower analog comparator from Silicon Labs. It operates on single supplies from +2.5V to +11V or dual supplies of ±1.25V to ±5.5V. The device features push-pull TTL/CMOS-compatible outputs capable of sourcing up to 40mA continuously. It exhibits ultra-low quiescent current, drawing less than 4μA total over temperature. Key electrical characteristics include a propagation delay of 12μs at 10mV overdrive and an input common-mode voltage range extending from the negative supply rail to within 1.3V of the positive supply.
Feature Summary
- Ultra-low quiescent current consumption for battery-powered applications
- Push-pull output stage with high continuous source current capability
- Wide input common-mode voltage range including the negative supply rail
- Crowbar-current-free switching to minimize output glitches
Applications
- Threshold detectors
- Window comparators
- Level translators
- Oscillator circuits
- Battery-powered systems
Procurement Notes
Verify that the component matches the specific package type and temperature grade indicated by the suffix. Confirm lead-free status and ensure compatibility with the intended supply voltage range. Check for automotive or industrial qualification requirements if applicable to the target system environment.
Selection Notes
Select this part for applications requiring low power consumption and high drive capability without internal reference or hysteresis generation. Consider the TSM921 or TSM923 if an internal reference or dedicated hysteresis pin is required. Ensure the load impedance allows for the specified 40mA source current while maintaining thermal limits.
Part Context
The TSM922 is part of the TSM921-TSM924 family of micropower comparators. It is electrically and form-factor identical to the MAX921-MAX924 series. Unlike the single (TSM921) or quad (TSM924) versions, the TSM922 provides two comparators per package without an internal voltage reference or dedicated hysteresis control pin.
Replacement Considerations
The datasheet states the device is electrically and form-factor identical to the Maxim Integrated MAX922. Verify pinout and specification alignment before substitution.
FAQ
Does the TSM922CSA+ have an internal voltage reference?
No, the TSM922 does not include an internal voltage reference. This feature is available in the TSM921, TSM923, and TSM924 variants.
Can the TSM922 support dual supply operation?
Yes, the TSM922 can operate from dual supplies ranging from ±1.25V to ±5.5V, in addition to single supplies from +2.5V to +11V.
