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ADN2880: 3.2 Gbps 3.3V Low Noise TIA for Small Form Factors
The ADN2880 is a compact, high performance 3.3 V power supply SiGe transimpedance amplifier (TIA) optimized for small form factor Metro-Access and Ethernet PIN/APD-TIA modules operating up to 3.2Gbps. It is a single chip solution for detecting photodiode current with a differential output voltage.
The ADN2880 features low input referred noise current of 400 nA enabling -24 dBm sensitivity; 2.1 GHz minimum BW enables up to 2.7 Gbps operation; +3.25 dBm nominal operation at 10 dB extinction ratio.
To facilitate assembly in small form factor packages such as a TO-CAN, the ADN2880 integrates a photodiode filter network on chip and features 20 kHz low frequency cutoff without any external components.
The ADN2880 operates with a 3.3 Volt power supply and is available in die form, with a chip area of less than 1 mm2.
Applications
Features
- Technology: High Performance SiGe
- Bandwidth: 2.1 GHz minimum
- Input Noise Current Density: 8 pA/RtHz Optical sensitivity: -24 dBm
- Differential Trans-Impedance: 5000 V/A
- Power Dissipation: 75 mW
- Differential Output: 250 mV pk-pk
- Input Current Overload: +3.25 mA pk-pk
- On-chip PD filter: RF = 200 Ω CF = 20 pF
- Output Resistance: 50 Ω / side
- Die Size: 0.7 mm x 1.2 mm
Functional Block Diagram for ADN2880
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