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Product Detailed Parameters
- Description：IC COMPARATOR 2 W/VOLT REF 8SOIC
- Series：TSM93x
- Mfr：Silicon Labs
- Package：Tube
- Type：with Voltage Reference
- 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)：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 TSM933CSA+ is a dual-channel analog comparator manufactured by Silicon Labs, designed for low-voltage and micropower applications. It operates from single supplies of +2.5V to +11V or dual supplies of ±1.25V to ±5.5V. The device features an internal 1.182V ±2% voltage reference and adjustable hysteresis via a dedicated pin. It draws a maximum quiescent current of 6μA over temperature. Electrical characteristics include a propagation delay of 12μs at 10mV overdrive, push-pull TTL/CMOS-compatible outputs capable of sourcing 40mA, and an input common-mode range extending from the negative supply rail to within 1.3V of the positive supply.
Feature Summary
- Dual comparators with integrated 1.182V reference
- Adjustable external hysteresis capability
- Push-pull outputs compatible with TTL and CMOS logic
- Ultra-low quiescent current consumption
Applications
- Threshold detectors
- Window comparators
- Level translators
- Oscillator circuits
- Battery-powered systems
Procurement Notes
Verify the specific suffix CSA+ against the manufacturer's official documentation to confirm the package type and lead-free status. Confirm that the component meets the required operating temperature range of 0°C to +70°C for this specific ordering code. Ensure compatibility with existing board layouts as the part is electrically identical to the MAX933 family.
Selection Notes
Select the TSM933CSA+ when a dual-channel comparator with an internal reference is required for space-constrained designs. It is suitable for applications needing adjustable hysteresis without complex feedback networks. Consider this part for single-supply operation between 2.5V and 11V where low power consumption is critical. Verify output drive requirements against the 40mA continuous source capability.
Part Context
The TSM933CSA+ belongs to the TSM931-TSM934 family of ultra-low-power comparators from Silicon Labs. This family serves as an alternate source for the Maxim Integrated MAX931-MAX934 series. The components share identical electrical performance and form factors, facilitating direct replacement in existing designs while offering supply chain diversification.
Replacement Considerations
The TSM933CSA+ is electrically and form-factor identical to the MAX933CSA+. Designers can substitute one for the other in existing circuits without modifying the schematic or layout, provided the operating conditions remain within the specified limits.
