MAX3745

www.DataSheet4U.com 19-2927; Rev 1; 8/03 2.7Gbps SFP Transimpedance Amplifiers with RSSI General Description The MAX3744/MAX3745 transimpedance amplifiers provide a compact, low-power solution for communication up to 2.7Gbps. They feature 330nA input-referred noise at 2.1GHz bandwidth (BW) with 0.85pF input capacitance. The parts also have >2mAP-P AC input overload. Both parts operate from a single +3.3V supply and consume 93mW. The MAX3744/MAX3745 are in a compact 30-mil x 50-mil die and require no external compensation capacitor. A space-saving filter connection is provided for positive bias to the photodiode through an on-chip 580 Ω resistor to V CC. These features allow easy assembly into a low-cost TO-46 or TO-56 header with a photodiode. The MAX3744 and MAX3748A receiver chip set provides an RSSI output using a Maxim-proprietary* interface technique. The MAX3744 preamplifier, MAX3748A postamplifier, and DS1858/DS1859 SFP controller meet all the SFF-8472 digital diagnostic requirements. o Up to 2.7Gbps (NRZ) Data Rates o RSSI Implementation in 4-Pin TO46 Header (MAX3744) o 10psP-P Deterministic Jitter for <100µAP-P Input Current o 330nARMS Input-Referred Noise at 2.1GHz Bandwidth o 28mA Supply Current at +3.3V o 2GHz Small-Signal Bandwidth o 2.0mAP-P AC Overload o Die Size: 30 mils x 50 mils Features MAX3744/MAX3745 Applications Up to 2.7Gbps SFF/SFP Optical Receivers Optimized for Small-Form-Factor Pluggable (SFP) Optical Receivers *Patent pending PART MAX3744E/D MA...