MAX3275 Datasheet

• Up to 2.125Gbps (NRZ) Data Rates
• 7ps_P-P Deterministic Jitter for <100µA_P-P Input Current
• 300nA_RMS Input-Referred Noise at 2.1GHz Bandwidth
• 25mA Supply Current at +3.3V
• 2.3GHz Small-Signal Bandwidth
• 2.0mA_P-P AC Overload
• Die Size: 24mil x 47mil

• Dual-Rate Fibre Channel Optical Receivers
• Gigabit Ethernet Optical Receivers

The MAX3275 transimpedance amplifiers provide a compact low-power solution for communication up to 2.125Gbps. They feature 300nA input-referred noise at 2.1GHz bandwidth (BW) with 0.85pF input capacitance. The parts also have 2mA_P-P AC input overload.

The MAX3277 is identical to the MAX3275, but with the output polarities inverted for optimum packaging flexibility. Both parts operate from a single 3.3V supply and consume only 83mW. The MAX3275 are compact 24mil x 47mil die and require no external compensation capacitor. A space-saving filter connection is provided for positive bias to the photodiode through an on-chip 600Ω resistor to V_CC. These features allow easy assembly into a TO-46 or TO-56 header with a photodiode.

The MAX3275 and MAX3274 limiting amplifiers provide a two-chip solution for dual-rate, fibre channel receiver applications.