LM2903A-VR

Overview

The LM2903A-VR is a dual independent voltage comparator manufactured by 3PEAK in an MSOP8 package. It operates on a single supply from +2.5 V to +36 V or dual supplies of ±1.25 V to ±18 V. Key electrical specifications include a quiescent current of 150 μA per channel, a maximum input bias current of 1 nA at 25°C, and a maximum offset voltage of ±6.0 mV. The device supports an operating temperature range of −40°C to 125°C and features open-collector outputs capable of wired-AND configurations.

Feature Summary

• Low power consumption suitable for battery operation
• Input common-mode voltage range includes ground
• Direct interface capability with TTL and CMOS logic
• Open-collector outputs allow wired-AND relationships

Applications

• High-speed line or digital line receivers
• Peak and zero-crossing detectors
• Threshold detectors and discriminators
• Sensing at ground or supply line

Procurement Notes

Verify the specific ordering suffix VR corresponds to the MSOP8 package and tape-and-reel transport media as defined in the manufacturer's order information table. Confirm that the RoHS-compliant green status aligns with project environmental requirements. Ensure design validation accounts for the specified ESD protection levels and thermal resistance characteristics inherent to the MSOP8 form factor.

Selection Notes

Select this component when a low-power dual comparator is required with inputs extending to ground potential. The wide supply voltage range accommodates various system architectures. Verify that the open-collector output topology fits the downstream logic requirements, as it necessitates external pull-up resistors for proper high-level signaling.

Part Context

This part belongs to the LM2903A/LM2901A series of 36-V low-power comparators. The LM2903A variant specifically provides two independent channels on a single monolithic substrate. The series is designed for applications requiring direct interfacing with standard logic families while maintaining low current drain independent of the supply voltage.

Replacement Considerations

LM2903A-SR (SOP8 package)

FAQ

What is the maximum input bias current specification?

The maximum input bias current is 1 nA at 25°C and increases to 10 nA across the full operating temperature range of −40°C to 125°C.

Can the outputs be connected together?

Yes, the outputs can be connected to other open-collector outputs to achieve wired-AND relationships.