General Description
The MAX3664 low-power transimpedance preamplifier for 622Mbps SDH/SONET applications consumes only 85mW. Operating from a single +3.3V supply, it converts a small photodiode current to a measurable differential voltage. A DC cancellation circuit provides a true differential output swing over a wide range of input current levels, thus reducing pulse-width distortion. The differential outputs are back-terminated with 60Ω per side.

FEATUREs
♦ Single +3.3V Supply Operation
♦ 55nARMS Input-Referred Noise
♦ 6kΩ Gain
♦ 85mW Power
♦ 300µA Peak Input Current
♦ 200ps Max Pulse-Width Distortion
♦ Differential Output Drives 100Ω Load
♦ 590MHz Bandwidth

APPLICATIONs
   SDH/SONET Receivers
   PIN/Preamplifier Receivers
   Regenerators for SDH/SONET