View max3274-max3276 datasheet:

19-2375; Rev 0; 4/02 Dual-Rate Fibre Channel Limiting Amplifiers General Description Features The MAX3274/MAX3276* dual-rate Fibre Channel limit- Dual-Rate 1.0625Gbps/2.125Gbps Operation ing amplifiers are optimized for use in dual-rate On-Chip Selectable 4th-Order Filter 2.125Gbps/1.0625Gbps Fibre Channel optical receiver systems. An on-chip selectable fourth-order Bessel Relaxation Oscillation Suppression of Legacy, Thompson filter offers 15dB (typ) of attenuation at 2GHz CD Laser-Based Transmitters to suppress the relaxation oscillation (RO) found in Available in 100? and 150? Output Terminations legacy transmitters. The amplifiers accept a wide range of input voltages and provide constant-level output volt- Programmable Loss-of-Signal (LOS) Threshold ages with con