LTC6563HUDDM#PBF

Overview

The LTC6563HUDDM#PBF is a low-noise four-channel transimpedance amplifier with a 600MHz bandwidth. It features selectable transimpedance gains of 22.2kΩ, 16.7kΩ, 11.1kΩ, and 5.55kΩ. The device provides a linear input current range up to 90µA and supports fast overload recovery within 2.5ns. It includes an internal 4-to-1 multiplexer and external channel expansion capability. The amplifier consumes between 194mW and 325mW on a 3.3V supply.

Feature Summary

• Integrates a high-speed differential ADC driver capable of swinging up to 2VP-P into a 100Ω differential load.
• Features built-in output multiplexing that allows multiple units to create expanded channel solutions.
• Provides large transient overload current handling exceeding 1A peak with rapid recovery times.

Applications

• Automotive LIDAR receivers
• Industrial LIDAR receivers
• Systems utilizing Avalanche photodiodes (APDs)
• Photodiode (PD) detection circuits

Procurement Notes

Verify the specific suffix #PBF indicates lead-free tube packaging when ordering. Confirm the H grade designation corresponds to the extended temperature range requirements for your application environment. Ensure compatibility with the 3mm x 5mm QFN footprint during PCB layout verification.

Selection Notes

Select this component for applications requiring wide linear input ranges and high bandwidth. Consider the integrated multiplexer if system space is constrained. Evaluate power dissipation limits relative to the selected gain setting and ambient operating conditions.

Part Context

This part belongs to the LTC6563 family of transimpedance amplifiers designed for optical signal processing. It is specifically engineered for high-speed light detection ranging applications. The H grade variant ensures performance stability across a wider thermal spectrum compared to standard industrial grades.

Replacement Considerations

LTC6563IUDDM#PBF

FAQ

What is the maximum linear input current range?

The device supports a linear input current range of up to 90µA.

How does the output multiplexer function?

An internal 4-to-1 MUX simplifies design, while external capabilities allow channel expansion up to 64 channels.