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Product Detailed Parameters
- Description：IC COMPARATOR 2 W/VOLT REF 8SOIC
- Series：TSM98x
- Mfr：Silicon Labs
- Package：Tube
- Type：with Voltage Reference
- Number of Elements：2
- Output Type：Open-Drain
- Voltage - Supply, Single/Dual (±)：2.5V ~ 11V, ±1.25V ~ 5.5V
- Voltage - Input Offset (Max)：10mV @ 2.5V
- Current - Input Bias (Max)：0.005µA @ 2.5V
- Current - Output (Typ)：40mA
- Current - Quiescent (Max)：6µA
- 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 TSM982CSA+ is a dual, low-voltage, micropower analog comparator manufactured by Silicon Labs. It operates from single +2.5V to +11V or dual ±1.25V to ±5.5V supplies with a maximum quiescent current of 6µA over the -40°C to +85°C temperature range. The device features open-drain outputs and includes an internal 1.182V reference voltage with ±2% accuracy. It supports adjustable external hysteresis via a dedicated HYST pin and provides a propagation delay of 12µs at 10mV overdrive.
Feature Summary
- Dual comparators with integrated 1.182V reference
- Ultra-low power consumption suitable for battery systems
- Open-drain output stages enabling wired-OR configurations
- Adjustable hysteresis capability through external resistors
Applications
- Threshold detectors
- Window comparators
- Level translators
- Oscillator circuits
- Battery-powered systems
Procurement Notes
Verify that the ordering suffix CSA+ corresponds to the 8-pin SOIC package and the commercial 0°C to +70°C temperature grade. Confirm lead-free compliance as standard for this product line. Ensure the application environment remains within the specified operating limits to maintain electrical performance guarantees.
Selection Notes
Select the TSM982CSA+ when a dual comparator configuration with an internal reference is required. This part is appropriate for designs needing adjustable hysteresis and open-drain outputs. Verify that the supply voltage range and input common-mode requirements align with the system architecture before finalizing the component choice.
Part Context
This component belongs to the TSM971/972/973/82/84 family of ultra-low-power comparators. It serves as an alternate source for the MAX972/MAX982 devices. The family shares identical electrical characteristics and form factors, providing flexibility in single, dual, and quad configurations for various low-voltage applications.
Replacement Considerations
The datasheet explicitly lists the MAX982 as an alternate source. Verify that any replacement maintains the same package type and temperature rating to ensure mechanical and thermal compatibility without circuit redesign.
FAQ
How is hysteresis implemented on the TSM982?
Hysteresis is generated using two external resistors connected between the REF, HYST, and V- pins. Connecting the HYST pin directly to the REF pin disables the hysteresis feature.
What is the input common-mode voltage range?
The input common-mode voltage range extends from the negative supply rail (V-) to within 1.3V of the positive supply rail (V+).
