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100G Transimpedance Amplifier Drives High Performance Optical Networks

Dec. 11, 2014
Texas Instruments (TI) introduced its first transimpedance amplifier (TIA) for the 100G optical networking market.

Texas Instruments (TI) introduced its first transimpedance amplifier (TIA) for the 100 G 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 100 G TIA serves parallel optical interconnects in applications with data rates of up to 28 Gbps, such as optical line cards, point-to-point microwave backhauls and video over fiber.

Key features and benefits of the ONET2804T include:

  a. High level of sensitivity: Less than 2-uA IRN and virtually no cross talk between channels help achieve high signal integrity.

  b. Design flexibility: Using a two-wire I2C interface, designers can optimize their systems to drive high performance at low power consumption.

  c. Easy system integration: The new TI's 750-um channel pitch enables designers to wire bond directly to a photodiode, which reduces system complexity.

The ONET2804T four-channel 28-Gbps 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 750-µm channel-pitch bare die. Suggested retail pricing in 1,000-unit quantities starts at US$45.00.

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