Analog CATV Transimpedance Amplifier

Provides the Lowest Cost GPON-Compliant Solution for FTTH Video Receivers

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The MAX3660 high-linearity analog RF transimpedance amplifier (TIA) is intended for passive optical network (PON) video receiver applications. With 66dBΩ maximum variable gain and integrated uptilt, the MAX3660 provides 23dBmV/channel ±1dB at 870MHz (19dBmV/channel at 47MHz) for optical inputs between +2dBm to -8dBm (at 4.2% OMI) using simple feed-forward automatic gain control (AGC). It can also be configured with feedback AGC for even greater dynamic range. CNR is better than 48dB from 47MHz to 870MHz (1.0A/W photodiode and -165dB/Hz RIN) at -8dBm with 4.2% OMI, or -6dBm with 3.3% OMI. CSO and CTB are better than -61dBc and -65dBc, respectively. The device supports extended frequency operation to > 1000MHz.

The very low true-TIA input impedance accommodates a variety of photodiodes, eliminating the need for an input matching network and improving yield.
MAX3660: Typical Application Circuit MAX3660: Typical Application Circuit Enlarge+

Key Features

  • Pin Compatible with MAX3654
  • Operates to > 1000MHz
  • 23dBmV/ch Output at 870MHz
  • 4.5pA/Hz1/2 Amplifier EIN without Photodiode
  • 58dBm OIP2
  • 24dBm OIP3
  • No Input Matching Required
  • Single +5V Supply
  • 650mW Dissipation
  • -40°C to +85°C Operating Temperature Range


  • FTTH Optical Network Termination (ONT)

Technical Documents

Tutorial 5100 General Layout Guidelines for RF and Mixed-Signal PCBs
Product Reliability Reports: MAX3660.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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Related Resources

Type ID Title
Evaluation Board6056MAX3660EVKIT