The LTC65612 is a low-noise four-channel, transimpedance amplifier (TIA)with 220MHz bandwidth. The LTC65612 multi-channel transimpedance amplifier’s low noise, high transimpedance, and low power dissipation are ideal for LIDAR receivers using Avalanche Photodiodes (APDs). The amplifier features 74kΩ transimpedance gain and 30µA linear input current range. Using an APD input circuit with a total capacitance of 2pF, the input current noise density is 4.5pA/√Hz at 200MHz. With lower capacitance, noise and bandwidth improve further. Only a 5V single supply is needed and the device consumes only 200mW. Utilizing the internal 4-to-1 MUX along with the LTC6561’s output MUX; multiple 4-channel LTC65612 devices can be combined to directly interface with 8, 12, 16 and 32-channel APD arrays. The LTC6561’s fast overload recovery and fast channel switchover make it well suited for LIDAR receivers with multiple APDs. Its single-ended output can swing 2VP-P on a 100Ω load. While its low impedance op amp-style output can drive back-terminated 50Ω cables.
The LTC65612 is packaged in a compact 4mm × 4mm 24-pin leadless QFN package with an exposed pad for thermal management and low inductance.
TYPE | DESCRIPTION | Select all |
---|---|---|
Supplier Device Package | 24-QFN (4x4) | |
Package / Case | 24-WFQFN Exposed Pad | |
Mounting Type | Surface Mount | |
Applications | LIDAR, Industrial Imaging | |
Type | Transimpedance Amplifier | |
Product Status | Active | |
Package | Tape & Reel (TR) |
Analog Devices Inc.
Analog Devices (NASDAQ: ADI) leads in crafting high-performance analog, mixed-signal, and digital signal processing integrated circuits. For decades, they've tackled signal processing challenges across global electronics. With over 100,000 clients, their products convert real-world phenomena into electrical signals. Merged with Maxim Integrated, they offer top-tier mixed-signal and power management technologies, solving complex problems from DC to 100 GHz and sensor to cloud.
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