Hittite has released an optical modulator driver which operates from DC to 30 GHz, and is designed for 40 Gbps and 100 Gbps Mach-Zehnder optical modulator driver applications. The HMC5850BG features high gain across a wide frequency range, low power dissipation, compact size, integrated peak detector function, fast rise/fall time and integrated bias-tee inductor.
The driver provides 8 VP-P saturated output swing up to 32 Gbps and features output swing cross point adjustment. With a wide supply operating range from +5 V to +7 V, it is an environmentally friendly product consuming only 1 W of power.
The HMC5850BG provides long-haul system designers with scalable power dissipation for varying output drive requirements. The integrated peak detector function enables monitoring and maintains a constant output swing from the modulator driver. Integrated high-speed bias-tee eliminates the requirement for external components.
The HMC5850BG can also interface with the HMC981LP3E active bias controller, enabling stability of performance over operating conditions. It operates over the
-40°C to +85°C temperature range, provides up to 32 dB of gain, and exhibits very low additive rms jitter of 230 fs and supports up to 32 Gbps operation. The output swing is adjustable from 5 VP-P to 8 VP-P.
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