GENERAL DESCRIPTION
The TZA3043 is a high speed transimpedance amplifier with AGC designed to be used in Gigabit Ethernet/Fibre Channel optical links. It amplifies the current generated by a photo detector (PIN diode or avalanche photodiode) and converts it to a differential output voltage.

FEATURES
• Wide dynamic range, typically 2.5 µA to 1.5 mA
• Low equivalent input noise, typically 5.7 pA/√Hz
• Differential transimpedance of 8.3 kΩ
• Wide bandwidth from DC to 950 MHz
• Differential outputs
• On-chip Automatic Gain Control (AGC)
• No external components required
• Single supply voltage from 3.0 to 5.5 V
• Bias voltage for PIN diode
• Pin compatible with TZA3023 and SA5223
• Switched output polarity available (B-version)
• Goldplated version available for direct placement of photodiode on die.

APPLICATIONS
• Digital fibre optic receiver in medium and long haul optical telecommunications transmission systems or in high speed data networks
• Wideband RF gain block.