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TI bares 100G TIA for optical networking systems

Posted: 23 Sep 2014     Print Version  Bookmark and Share

Keywords:100G  transimpedance amplifier  optical networking  TIA 

Texas Instruments (TI) introduced its first transimpedance amplifier (TIA) for the 100G optical networking market.

As a key component of the system, the ONET2804T brings high levels of sensitivity with negligible cross-talk penalty and low input-referred noise (IRN) to provide stable and robust communication in hot-pluggable transceivers. The newest member of TI's broad optical networking portfolio, the 100G TIA serves parallel optical interconnects in applications with data rates of up to 28Gbit/s, such as optical line cards, point-to-point microwave backhauls, and video over fibre.

Transimpedance amplifier

The ONET2804T offers less than 2µA IRN and virtually no cross talk between channels that help achieve high signal integrity. Using a two-wire I2C interface, designers can optimise their systems to drive high performance at low power consumption. Moreover, the TIA's 750µm channel pitch enables designers to wire bond directly to a photodiode, which reduces system complexity.

The ONET2804T four-channel 28Gbit/s TIA adds a new dimension to TI's popular line of optical networking products. In addition to TIAs, the portfolio features various types of laser drivers and limiting amplifiers to build optical networking systems.

The ONET2804T is available in a 750µm channel-pitch bare die. Suggested retail pricing in 1,000-unit quantities starts at $45.

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