Transimpedance preamplifier

The MAX3760 transimpedance preamplifier is designed for 622-Mbit/sec ATM applications. It converts small photodiode currents to measurable differential voltages, and includes a DC-cancellation circuit that reduces pulse-width distortion by providing true differential output swings over a wide range of current levels. It operates from a single 5V supply and has a typical power consumption of 100 mW. The unit has a 6.5-kW transimpedance gain and 560-MHz bandwidth, and handles input overloads to 1 mA. With an operating temperature range of -40 to +85C, its 73-nA input-referred noise allows a typical input sensitivity of -31.5 dB for 1300-nm receivers. Typical output-input overloads of -3 dbm give an overall dynamic range of 28.5 dBm. The product is available as die or in an 8-pin SO package. Prices start from $8.30.

Maxim Integrated Products

Sunnyvale, CA