Link Microtek (exclusive representative for TriQuint Semiconductor in the UK and Ireland) has announced the TGA2803 transimpedance amplifier/gain block for CATV distribution systems. Fabricated using proven GaAs technology, the TGA2803 addresses many of the stringent performance requirements of CATV systems, including flat gain and extremely low noise and distortion.
The device provides a gain of 20dB over its wide operating frequency range of 40MHz to 1GHz, with a typical noise figure of 1.5dB and a low input referred noise of 5pA/rt(Hz). Composite triple-beat distortion and composite second-order distortion are less than -70dBc at 40dBmV output, and the 75 ohm output third-order intercept is typically 46dBm.
Housed in a standard 4 x 4mm 20-lead MLP (micro-leadframe package), the TGA2803 is operated self-biased from a single supply of +8V and is 100 percent DC and RF tested to ensure performance compliance.
Link Microtek Ltd, Basingstoke, Hants RG24 8NE, UK