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PRODUCT DESCRIPTION

The ADN2821_2/5/10 are a series of compact, high performance SiGe 3.3V power supply Trans-impedance Amplifiers (TIAs) optimized for small form factor 10Gbps Metro-Access and Ethernet PD-TIA modules. The ADN2821 series features low input referred noise current and a range of trans-impedance gains, suitable for driving a typical CDR or transceiver directly. 8GHz minimum BW enables up to 11.1Gbps operation; 1.1μA input referred noise current enables ?19dBm sensitivity; 3.25dBm input overload current at a 10dB extinction ratio. RSSI output signal proportional to average input current is available for monitoring and alarm generation.

FEATURES

Bandwidth: 8 GHz min

Input Noise Current Density: 12pA√Hz

Optical sensitivity: ?19 dBm1

Differential Transimpedance /Linear Range:

ADN2821_2: 2.0 k?/0.20 mA p-p

ADN2821_5: 5.0 k?/0.08 mA p -p

ADN2821_10: 10.0 k?/0.04 mA p-p

Power Dissipation: 150 mW

Differential Output Swing: 400 mV p-p min

Input Overload: 3.25 dBm @ 10 dB ER

Low-F cutoff:

ADN2821_10: 25 kHz w/CLF = 0.5 nF

On-Chip PD filter: RF = 200 ?, CF = 20 pF

RSSI voltage and current ratio: 0.8V/mA

Die Size: 0.65 mm × 1.20 mm

APPLICATIONS

10.7 Gbps Optical Modules

SONET/SDH OC-192/STM-64 and 10 GbE

Receivers, Transceivers, Transponders