ADN2880
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ADN2880

3.2 Gbps 3.3V Low Noise TIA for Small Form Factors

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Features
  • Bandwidth: 2.5 GHz
  • Optical sensitivity: −24.2 dBm
  • Differential transimpedance: 4400 V/A
  • Power dissipation: 70 mW
  • Differential output swing: 260 mV p-p
  • Input overload current: 4.3 mA p-p
  • On-chip RSSI function
  • Low frequency cutoff: 20 kHz
  • On-chip PD filter: RF = 200 Ω, CF= 20 pF
  • Die size: 0.7 mm x 1.2 mm
Additional Details
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The ADN2880 is a 3.3 V, high gain SiGe transimpedance amplifier (TIA). The TIA converts the small signal current of a photo detector into differential voltage output. The ADN2880 features a 315 nA typical input-referred noise, enabling an optical sensitivity of −24.2 dBm (0.85 A/W PIN). With a bandwidth of 2.5 GHz, the ADN2880 allows a data rate operation up to 3.2 Gbps. Typical power dissipation is approximately 70 mW.

To facilitate the assembly in small form factor packages, such as TO-46 headers, the ADN2880 provides an on-chip RC filter (200 Ω, 20 pF) and features a 20 kHz low frequency cutoff without using an external capacitor. An on-chip RSSI circuit, which generates a voltage proportional to the average photo-diode current, is also available for power monitoring and assembly alignment.

The ADN2880 is available in die form. With a chip area of 1.2 mm × 0.7 mm, the TIA layout is specifically optimized for TO-Can-based packages.

Applications

  • 3.2 Gbps or below optical receivers
  • SONET/GbE/FC optical receivers
  • SFF-8472-compliant receivers
  • PIN/APD-TIA receive optical subassemblies (ROSA)
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ADN2880

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Data Sheet

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UPDATED 07/01/2005
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ADN2880: 3.2 Gbps, 3.3 V, Low Noise, Transimpedance Amplifier Data Sheet (Rev.0)

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UPDATED 12/30/2014
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SFP Chipset and Reference Design Simplify 4.25 GBPS Transceivers redirect icon

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UPDATED 02/10/2015
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SFPチップセットと参考デザインにより4.25GBPSトランシーバを簡素化 redirect icon

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Documentation

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

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Sep 9, 2009

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