MAX40659ETA+T

Overview

The MAX40659ETA+T is a high-speed transimpedance amplifier designed for optical distance measurement receivers in LiDAR applications. It operates from a +3.3V supply, consuming 70mW of power. The device features an internal 100mA input current clamp and offers a small-signal transimpedance of 36.4kΩ. It provides a minimum bandwidth of 360MHz with an input-referred noise of 45nARMS. The component includes an offset adjustment input to tune the effective input offset current. It is housed in a compact 3mm x 3mm, 8-pin TDFN package and is specified over an operating temperature range of -40°C to +85°C.

Feature Summary

• Internal 100mA input current clamp protects against overload conditions
• Offset adjust input allows precise tuning of input offset current
• Low noise performance with 45nARMS input-referred noise
• Fast recovery from overload suitable for distance-measurement applications

Applications

• Optical Distance Measurement
• LIDAR Receivers
• Industrial Safety Systems
• Autonomous Driving Systems

Procurement Notes

Verify that the ordering suffix 'T' corresponds to tape-and-reel packaging as defined in the manufacturer's documentation. Confirm the specific part number matches the required transimpedance value of 36.4kΩ. Ensure the package code aligns with the 8-TDFN footprint requirements for your design. Cross-reference the RoHS compliance status indicated by the '+' suffix before finalizing procurement.

Selection Notes

Select this component when designing optical receivers requiring high gain and fast recovery from saturation. The 36.4kΩ transimpedance is optimal for converting photodiode currents into differential voltages. Consider the 360MHz minimum bandwidth for high-frequency signal processing. The integrated clamp simplifies protection circuitry compared to external solutions. Evaluate the 70mW power consumption against system thermal constraints.

Part Context

This device belongs to the MAX40658/MAX40659 family of transimpedance amplifiers manufactured by Analog Devices Inc./Maxim Integrated. The MAX40659 variant specifically provides a higher transimpedance gain compared to the MAX40658. Both parts share identical pinouts, power requirements, and general application profiles for LiDAR systems.

Replacement Considerations

The MAX40658ETA+ serves as a functional alternative within the same series, offering a different transimpedance value of 18.3kΩ while maintaining identical pinout and package specifications.