The OA4SMM5 is a small high performance broadband 40Gb/s Electro-Absorption and Lithium Niobate optical modulator driver amplifier with low jitter, 3.3V amplitude, and excellent gain and group delay flatness to 45GHz. The driver is designed for electro-optical test equipment and SONET OC-768 / STM-256 optical modulator driver applications.