LTC6563HUDDM#TRPBF

Overview

The LTC6563HUDDM#TRPBF is a low-noise four-channel transimpedance amplifier with 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 output multiplexing for channel expansion. It includes a built-in high-speed differential ADC driver capable of swinging up to 2VP-P into a 100Ω load. Operating on a 3.3V supply, power dissipation ranges from 194mW to 325mW depending on the output mode.

Feature Summary

• Integrates an internal 4-to-1 multiplexer to simplify system design and reduce component count.
• Provides fast overload recovery and rapid channel switching suitable for multi-detector applications.
• Features external multiplexing capability allowing expansion to larger channel configurations.
• Includes built-in high-speed differential output stage optimized for direct ADC driving.

Applications

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

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing this part number. Confirm the 'H' grade designation matches the required -40°C to +125°C operating temperature range for your application environment. Ensure compatibility with the 24-lead QFN package footprint during PCB layout verification.

Selection Notes

Select this component for designs requiring high bandwidth and low noise in multi-channel optical sensing. The integrated multiplexer reduces board space compared to discrete solutions. Consider the available gain settings to match the expected photocurrent levels of the connected photodiodes or APDs.

Part Context

This part belongs to the LTC6563 family of four-channel transimpedance amplifiers manufactured by Analog Devices. It is designed specifically for high-performance optical signal processing. The HUDDM variant denotes the industrial/high-temperature grade housed in a side-solderable QFN package.

Replacement Considerations

LTC6563HUDDM#WPBF