Hittite Introduces New 43 Gbps Transimpedance Amplifier (TIA)

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Targets Small Form Factor XLMD2 Receivers for VSR & 40GbE-FR CFP/CFP2 Modules



Chelmsford, MA 12/06/2013 -

Hittite Microwave Corporation, the world class supplier of complete MMIC based solutions for communication & military markets has released a 43 Gbps high gain Transimpedance Limiting Amplifier (TIA+LIA) targeting VSR type receivers for SONET/SDH with 2 to10 Km of optical reach and 40 Gbps Ethernet FR applications.

The SiGe BiCMOS HMC7590 Transimpedance Amplifier is ideal for lower cost receivers for next generation VSR modules. This TIA+LIA achieves comparable performance to its InP process-based counterparts. Its high gain and bandwidth improves the dynamic range in optical receivers and is ideal for all data rate applications in the 40G region.

The HMC7590 features a low input referred rms equivalent noise of 3 µA and high input overload capability up to 4 mA. The high differential gain of 4 kΩ makes this TIA+LIA ideal for driving DEMUX/CDR ICs directly without the need for an additional limiting amplifier. It features an internal DC offset cancellation that automatically adjusts the threshold point and compensates for input current mismatches due to process variations. The decision threshold can be externally tuned to optimize the output crossing point. The HMC7590 also features an analog control input for overload optimization and supports an optical input dynamic range between -10.5 dBm and +5 dBm while maintaining BER of 10-12 over operating supply and temperature corners. The HMC7590 includes an on-chip Vcc bypass capacitor for photodiode biasing and requires only power supply decoupling capacitors as external components.

Offered in die form, the HMC7590 operates from a single 3.3V supply, dissipates less than 300 mW, and is specified for –5 °C to +85 °C. Samples are available from stock and can be ordered via the company's e-commerce site or via direct purchase order. Data sheets can be requested online at www.hittite.com.

Hittite Microwave Corporation is an innovative designer and manufacturer of high performance integrated circuits, or ICs, modules, subsystems and instrumentation for technically demanding digital, RF, microwave and millimeterwave applications covering DC to 110 GHz. The Company's standard and custom products apply analog, digital and mixed-signal semiconductor technologies, which are used in a wide variety of wireless / wired communication and sensor applications for Automotive, Broadband, Cellular Infrastructure, Fiber Optics & Networking, Microwave & Millimeterwave Communications, Military, Test & Measurement, and Space markets. The Company is headquartered in Chelmsford, Massachusetts.

News Source : Hittite Introduces New 43 Gbps Transimpedance Amplifier (TIA)

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