Functional Description
The LG1626DXC is a gallium-arsenide (GaAs) intergrated circuit used to provide voltages to drive optical modulators in high-speed non-return-to-zero (NRZ) transmission systems. The device is made in a high performance 0.9 µm gate GaAs hetero-junction FET technology that utilizes high-density MIM capacitors, airbridge interconnect, and NiCr film precision resistors.

Features
■ High data-rate optical modulator driver
■ Adjustable output voltage up to 3 Vp-p (RL = 50 Ω)
■ Adjustable modulator dc offset
■ Operation up to 3 Gbits/s
■ Single ended or differential inputs
■ Single –5.2 V power supply
■ 90 ps rise and fall times
■ Enable control

Applications
■ SONET/SDM transmission systems
■ SONET/SDM test equipment
■ Optical transmitters