LM339BIDR

Overview

The LM339BIDR is a quad standard analog comparator manufactured by Texas Instruments, housed in a 14-pin SOIC package. It operates on a single supply voltage ranging from 2 V to 36 V or dual supplies of ±1 V to ±18 V. The device features an open-collector output configuration and draws a typical operating supply current of 800 µA. Key electrical specifications include a maximum propagation delay of 1 µs, an input offset voltage of 370 µV, and an input bias current of 25 nA. It supports a common-mode voltage range extending down to -1.5 V and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates four independent differential comparators within a compact surface-mount package for space-constrained designs.
• Features low power consumption with an operating supply current of 800 µA, suitable for battery-powered applications.
• Provides high-precision signal comparison capabilities with a low input offset voltage specification.
• Supports wide single-supply or split-supply operation, ensuring compatibility with various logic families via open-collector outputs.

Applications

• Over-voltage and under-voltage detection circuits
• Temperature sensing and control systems
• Level shifting and digital interface buffering

Procurement Notes

Verify the specific suffix 'IDR' confirms the industrial temperature grade (-40°C to +85°C) and SOIC-14 tape-and-reel packaging format. Ensure the component matches the LM339B series specifications regarding offset voltage and response time. Confirm RoHS compliance status through official manufacturer documentation prior to integration into regulated assemblies.

Selection Notes

Select this component when a quad comparator with low power consumption and industrial temperature rating is required. The open-collector output necessitates external pull-up resistors tailored to the target logic voltage levels. Consider the 1 µs propagation delay for timing-sensitive applications; faster alternatives may be needed for high-speed signaling. Verify that the 370 µV offset voltage meets the precision requirements of the specific measurement circuit.

Part Context

This part belongs to the LM339 family of quad comparators, widely used in general-purpose analog signal processing. The 'B' suffix typically denotes improved offset voltage characteristics compared to standard variants. The 'I' indicates the industrial temperature range, while 'D' specifies the SOIC package and 'R' denotes reel packaging. It serves as a cost-effective solution for multi-channel voltage monitoring tasks.

Replacement Considerations

LM339DR: Standard commercial grade version with similar electrical characteristics but different temperature range.

FAQ

What is the common-mode voltage range of the LM339BIDR?

The common-mode voltage range extends from -1.5 V up to the positive supply rail minus approximately 1.5 V.

Does the LM339BIDR have a shutdown pin?

No, the LM339BIDR does not feature a shutdown mode; it operates continuously when powered.