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Maxim unveils TIA for multirate Fiber Channel, GbE transceivers

Posted: 30 Nov 2004 ?? ?Print Version ?Bookmark and Share

Keywords:maxim integrated products? transimpedance amplifier? tia? fiber channel? gigabit ethernet?

Maxim Integrated Products introduced a 3.3V, 4.25Gbps transimpedance amplifier (TIA) for multirate Fiber Channel and Gigabit Ethernet transceivers.

The new MAX3793 operates in 1X, 2X and 4X Fiber Channel receivers without requiring a rate-select input. According to the company, the device is suitable for meeting 4.25Gbps performance without losing sensitivity at 1Gbps/2Gbps operation. It has an RSSI output to indicate the module's received power.

Operating from a single 3.3V supply, the MAX3793 has a 2.9GHz bandwidth and provides 3.5 kilohms of differential gain, while consuming 105mW of power. It has an input overload of 2mA and generates 370nA root-mean-square of input referred noise. In addition, the TIA comes with a low, 30kHz low-frequency cut-off and generates only 6ps of deterministic jitter at 4.25Gbps.

The MAX3793 TIA, the MAX3794 limiting amplifier and the MAX3795 VCSEL driver comprise a chipset that provides an easy upgrade to 4Gbps Fiber Channel designs.

The MAX3793 is available as a 1.27-by-0.76mm dice, and operates over the industrial temperature range. Prices start at $1.25 (1,000-up, FOB USA). Evaluation kits are also available to help speed designs.

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