The OPF560 series receiver is a low cost solution for high speed fiber optic communication designs. The output of the receiver is an analog, low impedance, emitter follower voltage source capable of driving an amplifier or level translating circuitry. This allows the subsequent circuitry to use the device in either the analog mode or translated to ECL/TTL levels for use in a digital mode at data rates up to 155MBaud. The receiver is comprised of a high speed, low noise, photodiode coupled to a transimpedance amplifier which produces an output voltage proportional to the input light amplitude. This hybrid approach solves many of the problems of high speed data link designs by placing a pre-amplifier close to the photodiode. The amplification of the transimpedance amplifier makes the output signal much less susceptible to EMI.
This product bulletin describes the low‑cost OPF560 series of 125 MHz fiber optic receivers, highlighting their high‑speed data capability, analog output, and flexible interfacing options such as SMA, ST* or plastic cap styles. The receivers combine a high‑speed photodiode with a transimpedance amplifier to deliver a low‑impedance voltage source suitable for both analog and digital applications.
Technical specifications are listed, including maximum data rate, supply voltage range, output current, bandwidth, and temperature limits. Absolute maximum ratings and detailed electrical characteristics are provided, along with recommended AC‑coupled receiver circuit diagrams and mechanical dimensions for the three model types (OPF560, OPF561, OPF562).
| Maximum Data Rate | 155 MBd |
|---|---|
| Bandwidth | 125 MHz (-3 dB) |
The receivers support data rates up to 155 MBd.