LTC6560HUD#WTRPBF

Overview

The LTC6560HUD#WTRPBF is a single-channel transimpedance amplifier with output multiplexing, designed for LIDAR receivers using avalanche photodiodes. It operates from a single 5V supply and consumes 90mW. Key electrical parameters include a 220MHz -3dB bandwidth (with 2pF input capacitance), a typical transimpedance gain of 74kΩ, and an input current noise density of 4.8pA/√Hz at 200MHz. The device supports a linear input range of 0µA to 30µA and features fast overload recovery in 10ns. It is housed in a 3mm × 3mm 16-lead QFN package.

Feature Summary

• Integrates an output multiplexer to combine multiple devices into a single output channel
• Provides fast overload recovery to minimize data loss during saturation events
• Features low power dissipation suitable for compact multi-channel designs
• Includes internal protection circuitry to withstand strong overdrive conditions

Applications

• LIDAR receivers
• Industrial imaging systems

Procurement Notes

Verify the specific suffix #WTRPBF indicates automotive grade qualification and tape and reel packaging. Confirm that the H temperature grade covers the required operating range up to 125°C. Ensure the ordering information matches the exact part number for lead-free finish and plastic QFN package specifications.

Selection Notes

Select this component when designing LIDAR systems requiring high bandwidth and low noise with avalanche photodiodes. Consider the output multiplexing capability if space constraints prevent individual outputs for each sensor channel. Evaluate the total input capacitance requirements to ensure the 220MHz bandwidth specification is met in the final layout.

Part Context

This part belongs to the LTC6560 family of transimpedance amplifiers. The HUD suffix denotes the automotive grade version with extended temperature capabilities compared to standard industrial variants. It is specifically optimized for applications demanding precise current-to-voltage conversion with minimal signal degradation.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.

FAQ

How does the O_MUX pin function?

The O_MUX pin controls the output multiplexer. When low, the output is enabled; when high, the input is decoupled from the output, allowing multiple LTC6560s to share a common output line.

What is the maximum overload current the device can handle?

The device can survive overload currents exceeding ±400mA peak and recovers from 1mA saturation events in less than 12ns without phase reversal.