LTC6560DICE-ES.pdf

describe

The LTC6560 is a low noise, transimpedance amplifier (TIA) with 220MHz bandwidth. The LTC6560's low noise, high transimpedance and low power consumption make it ideal for LIDAR receivers employing avalanche photodiodes (APDs). The LTC6560 features 74k¦¸ transimpedance gain and a 30µA linear input current range. When using an input circuit with a total input capacitance of 2pF, the input current noise density is 4.8pA/¡ÌHz. (at 200MHz). Noise and bandwidth are further improved by using lower capacitance. The LTC6560 operates from a single 5V supply and consumes only 90mW. Using the LTC6560's output multiplexer, multiple LTC6560 devices can be combined into a single output. The LTC6560's fast overload recovery and fast output multiplexing make it ideal for LIDAR receivers with multiple APDs. Its single-ended output can swing 2VP-P into a 100¦¸ load. Its low-impedance op-amp output is designed to drive back-terminated 50¦¸ cables. .

The LTC6560 is packaged in a compact 3mm ¡Á 3mm 16-pin leadless QFN package with exposed pad for thermal management and low inductance.

characteristic

• 220MHz ¨C3dB Bandwidth with 2pF Input Capacitance

• Single-Ended Output

• 74k¦¸ Transimpedance Gain

• Input Current Noise Density of 4.8pA/¡ÌHz at 200MHz (2pF)

• Integrated Input Current Noise of 64nARMS Above 200MHz (2pF)

• Linear Input Range 0 µA to 30 µA

• Overload Current > ¡À400mA (Peak)

• Fast Overload Recovery: 1mA (10ns)

• Fast Output Multiplexing: <50ns

• Single 5V Supply

• 90mW Power

Dissipation • Output Swings into 100¦¸ Load 2VP-P

• 3mm ¡Á 3mm 16-Pin QFN Package

• Output Multiplexer Combines Multiple LTC6560 Devices

• AEC-Q100 Qualified for Automotive Applications

application

• LIDAR receivers

• Industrial imaging