LMH34400IDRLR

Overview

The LMH34400IDRLR is a single-channel, single-ended transimpedance amplifier with an integrated gain of 40 kΩ. It features a bandwidth of 240 MHz and an input-referred noise of 50 nARMS. The device includes a 100-mA protection clamp and ambient light cancellation circuitry. Operating from a 3 V to 3.45 V supply, it draws 20 mA quiescent current and supports temperatures from -40°C to +125°C.

Feature Summary

• Integrated 100-mA protection clamp for rapid recovery from overloaded input conditions
• Built-in ambient light cancellation loop eliminates the need for external AC coupling components
• Low-power mode functionality allows multiplexing multiple channels to a single receiver stage

Applications

• Mechanically scanning LIDAR systems
• Solid-state scanning LIDAR applications
• Laser distance meters
• Optical ToF position sensors
• Drone vision systems

Procurement Notes

Verify that the specific ordering suffix IDRLR corresponds to the SOT-563 (DRL) package configuration required for your design. Confirm that the logic thresholds for the EN and IDC_EN pins align with your system's digital control voltage levels before finalizing procurement.

Selection Notes

Select this component when a fixed-gain TIA optimized for time-to-digital converters is required. It is suitable for designs needing high-speed response with minimal external passive components. Consider the low-power mode capability if power management or channel multiplexing is part of the system architecture.

Part Context

This device belongs to Texas Instruments' portfolio of high-speed transimpedance amplifiers designed specifically for LiDAR and laser ranging applications. It addresses the industry demand for compact solutions by integrating critical signal conditioning functions into a small footprint.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.