OPF2418, OPF2418T Features:  Up to 194 Mbps operation  850nm wavelength   ST style port  Wave solderable  Wide temperature range Description: The OPF2418 family is a low cost solution for high speed fiber optic communications designs. The internal lensing of this receiver’s design allows optimal response for fiber sizes of 100µm and below. The receiver is comprised of a high speed, low noise, photodiode coupled to a transimpedance amplifier (TIA). The photodiode/TIA combination produces an output voltage that is proportional to the input light amplitude. This hybrid approach solves many of the problems of high speed data link designs by placing the photodiode close to the TIA. The amplification of the TIA makes the output much less susceptible to EMI. The output of the OPF2418 is an analog, low impedance, emitter follower voltage source. Subsequent circuitry can be utilized to convert the analog voltage to ECL/TTL for digital data rates up to 155 Mbps. The OPF2418 is Ò available with either standard or threaded panel mount ST receptacles. The threaded version is also available in conductive plastic. Applications:  Industrial Ethernet equipment  Copper-to-fiber media conversion  Intra-system fiber optic links  Video surveillance systems PIN FUNCTION 1 Not Connected 2 V OUT  “T” suffix = Threaded ST package 3 V EE \ 4 Not Connected 5 Not Connected 6 V CC 7 V EE 8 Not Connected Pins 3 & 7 are electrically connected to the header.  Pins 1,4,5 & 8 are mechanically connected together. RoHS ESD Class 2 ST is a registered trademark of AT&T. General Note TT Electronics | OPTEK Technology, Inc. TT Electronics reserves the right to make changes in product specification without 1645 Wallace Drive, Carrollton, TX 75006|Ph: +1 972 323 2200 notice or liability. All information is subject to TT Electronics’ own data and is sensors@ttelectronics.com | www.ttelectronics.com considered accurate at time of going to print. Issue B 08/2016 Page 1 © TT electronics plc OPF2418, OPF2418T Mechanical Data OPF2418 OPF2418T [MILLIMETERS] DIMENSIONS ARE IN: INCHES General Note TT Electronics | OPTEK Technology, Inc. TT Electronics reserves the right to make changes in product specification without 1645 Wallace Drive, Carrollton, TX 75006|Ph: +1 972 323 2200 notice or liability. All information is subject to TT Electronics’ own data and is sensors@ttelectronics.com | www.ttelectronics.com considered accurate at time of going to print. Issue B 08/2016 Page 2 © TT electronics plc OPF2418, OPF2418T Electrical Specifications Absolute Maximum Ratings (T = 25° C unless otherwise noted) A Storage Temperature Range -55° C to +85° C Operating Temperature Range -40° C to +85° C (1) Lead Soldering Temperature 260° C Supply Voltage -0.5 V to 6.0 V Output Current 25 mA Output Pin Voltage -0.5 V Electrical Characteristics (T = 25° C unless otherwise noted) A SYMBOL PARAMETER MIN TYP MAX UNITS TEST CONDITIONS 5.3 7.0 9.6  = 850 nm, f = 50 MHz p R Responsivity mV/µW 4.5 11.5 -40 °C  T  +85 °C A 0.40 0.59 75 MHz Bandwidth Filtered, P = 0 R V RMS Output Noise Voltage mV NOISE 0.70 Unfiltered Bandwidth Filtered, P = 0 R P RMS Equivalent Optical Noise Input Power 0.050 0.065 µW 100 MHz Bandwidth Filtered, P = 0 N R 175 µW P Peak Received Optical Power R 40 °C  T  +85 °C A 150 µW V DC Output Voltage -4.2 -3.1 -2.4 V P = 0 ODC R I Supply Current 9 15 mA R =  EE L BW Bandwidth 155 200 MHz -3dB electrical f = 50 MHz, P = 100 µW peak, R t , t Rise Time, Fall Time 2.0 2.6 ns r f R = 511 , C = 5 pF L LOAD PWD Pulse Width Distortion 0.4 2.5 ns f = 50 MHz, P = 150 µW peak R PSRR Power Supply Rejection Ratio 20 dB f = 10 MHz Notes: 1. Maximum of 5 seconds with soldering iron. Duration can be extended to 10 seconds when flow soldering. RMA flux is recom- mended. Application Circuit Note that the 10W resistor and bypass capacitor are critical. General Note TT Electronics | OPTEK Technology, Inc. TT Electronics reserves the right to make changes in product specification without 1645 Wallace Drive, Carrollton, TX 75006|Ph: +1 972 323 2200 notice or liability. All information is subject to TT Electronics’ own data and is sensors@ttelectronics.com | www.ttelectronics.com considered accurate at time of going to print. Issue B 08/2016 Page 3 © TT electronics plc