OA4SMM4, Modulator Driver, 4.5V 40GHz Broadband Amplifier, Dual Channel

40Gbps LiNiO3 Modulator Driver, 4.5V 40GHz Broadband Amplifier, Dual Input

The OA4SMM4 is a dual input high performance broadband 43 Gb/s Electro-Absorption optical modulator driver amplifier with very low jitter, 4.5 V amplitude, with excellent gain and group delay flatness, matched to 45 GHz. It is designed for electro-optical test equipment and SONET OC-768 / STM-256 optical modulator driver applications. It also supports IQ and QAM modulation.


Product Highlights

  • Dual 4.5V Outputs
  • 0.5ps added RMS jitterOA4SMM4 Driver
  • 6ps rise / fall time
  • 17dB gain to 45 GHz
  • 20dBm saturated output power
  • 3.3W power dissipation
  • Size: 1.58 x 1.85 x 0.36 inch


The OA4SMM4 is offered in a small modularized package with superb performance, and is intended for lab use or transponder integration. The OA4SMM4 has gain and power levels that are ideally suited for driving either 40G electro-absorption modulators. The dual driver is well matched so it can be used for differential modulators or with other complex modulation schemes. It has low power dissipation, ample drive signal, very low added jitter, fast rise/fall times, and is easy to use with simple bias voltages.

BTW: The driver board for OA4SMM4 is also available upon request, which is shown at right side.




Parameter Unit Min. Typ. Max.
Data Rate Gbps 43
3dB Bandwidth GHz 40 45
P3dB Output dBm 20
Output Amplitude Swing Vpp 2.0 4.0
Input Amplitude Swing Vpp 0.3 0.4 0.6
Variable Gain dB 17
Added Jitter (RMS) ps 0.5 0.6
Rise / Fall Time ps 6 9
Input, Output Impedance Ohms 50
Signal  Output and Couple Single Ended, AC Coupled
RF Port 1.85 V Type

Order Information


1 2 3 4
Package Data Rate Output Swing RF Connector
E=EVB 40=40Gbps 4=4.0Vpp V=1.85 V Type