SiGe Semiconductor TIA runs at 10Gbps

SiGe Semiconductor has added a 10Gbps transimpedance amplifier (TIA) to its LightCharger line of optical interface components. Featuring a 9.8GHz bandwidth and 1.2-kiloohm impedance, the SE1050 is said to optimize the sensitivity, noise performance and overload capacity of fiber-optic modules in short-reach, metro-access and long-haul OC-192, STM-64 and Ethernet systems.

The company's SiGe process is said to deliver stable electrical performance and linearity sufficient to improve the sensitivity of optical receivers in bandwidth-intensive applications.

Besides a wide dynamic range, the SE1050 offers noise performance of 14pA/vHz with a sensitivity of -20dBm, for a 1010 bit-error rate. The 5V TIA requires a 340mW operating current.

The device can be configured for single-ended or differential output voltages and is capable of swinging up to 1.1V peak-to-peak differential into a 100-ohm load, which is sufficient drive for a postamplifier or direct input into a serdes. It's supplied in bare-die format and priced at $64.25 in quantities of 10,000.

CEO Jim Derbyshire said the SE1050 is the first in a line of 10Gbps PHY ICs that will integrate all of the active components in the optical PHY layer.

EE Times