LM2903A-VS1R-S

Overview

The LM2903A-VS1R-S is a dual independent comparator from the LM2903A series, manufactured by 3PEAK. It operates on a single supply voltage ranging from +2.5 V to +36 V or dual supplies of ±1.25 V to ±18 V. The device features a maximum input offset voltage of ±7.0 mV and a maximum input bias current of 1 nA at 25°C. Quiescent current per comparator is between 100 μA and 300 μA across the operating temperature range. It includes an internal differential input voltage range equal to the supply voltage and outputs capable of wired-AND connections. The component is qualified for automotive applications under AEC-Q100 standards.

Feature Summary

• Qualified for automotive applications with AEC-Q100 reliability testing
• Input common-mode voltage range includes ground even when operated from a single supply
• Outputs can be connected to other open-collector outputs to achieve wired-AND relationships
• Designed to directly interface with TTL and CMOS logic families

Applications

• High-speed line or digital line receivers
• Peak and zero-crossing detectors
• HEV/EV systems
• IR receiver circuits

Procurement Notes

Verify the specific ordering suffix VS1R-S corresponds to the MSOP8 package and tape-and-reel transport media containing 3000 units. Confirm RoHS compliance and halogen-free status as defined by the manufacturer's green product standard. Ensure design implementation accounts for the specified ESD ratings and thermal resistance characteristics for the selected package type.

Selection Notes

Select this component for designs requiring low power consumption suitable for battery operation alongside high-voltage tolerance up to 36 V. The inclusion of ground in the common-mode input range simplifies single-supply interfacing. Verify that the required response time and output drive capabilities meet system specifications, noting the open-collector nature of the outputs necessitates external pull-up resistors.

Part Context

This part belongs to the LM2903A/LM2901A family of 36-V low-power comparators produced by 3PEAK. The series offers single, dual, and quad configurations on a monolithic substrate. The LM2903A variant specifically provides two independent comparators, distinguishing it from the quad-channel LM2901A. The device is engineered for robust performance in industrial and automotive environments.

Replacement Considerations

LM2903A-SO1R-S (SOP8 package)

FAQ

What is the input common-mode voltage range?

The input common-mode voltage range includes ground (0 V) and extends up to VCC minus 1.5 V at 25°C, or VCC minus 2 V across the full temperature range.

How does the device handle inputs outside the common mode range?

If both inputs are within the common-mode range, the output transitions based on the differential voltage. If one input exceeds the common-mode range while the other remains within it, the output goes low or high impedance accordingly. If both inputs exceed the common-mode range, the output state is uncertain.