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epc137 Datasheet(PDF) 1 Page - Espros Photonics corp |
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epc137 Datasheet(HTML) 1 Page - Espros Photonics corp |
1 / 11 page He epc134/epc135/epc136/epc137/epc138/epc139 Photo-receiver Amplifier General Description The epc13x family products are monolithic, integrated high sensi- tive photo-diode amplifiers for light-barrier, light-curtain, and the like applications. It amplifies current pulses from reverse-biased PIN photodiodes (e.g. epc200, epc3xx) and discriminates the am- plified input light pulse before driving the open-drain output stage. The device is controlled by an internal digital controller, which uses no external clock signal. The power supply of the device can be connected in anti-polar mode to decrease the wiring effort in matrix operated light-curtain products. The device has been optimized to utilize the least count of external components. This device allows the design of short to long range light barriers from a few millimeters up to tens of meters. epc130/epc131 are the same devices but with an analog output. Please refer to the corresponding data sheet epc130/epc131. Features Low current consumption Digital output Reverse polarity protection Two-wire and open drain output interface High sensitivity (epc135/138) Fast versions available (epc136/139) Light reserve output (epc135/136) High sensitivity and light reserve output (epc134) CSP6 package with very small footprint. Applications Light barriers ranging from millimeters to tens of meters Light curtains Smoke detectors Liquid detectors Heart beat monitors Device selection table Model Output digital analog w/o fast high epc130 x x x x epc131 x x x x epc134 x x x x epc135 x x x x epc136 x x x x epc137 x x x x epc138 x x x x epc139 x x x x Light Reserve Output Response Time Sensitivity with slow low medium very high Functional Block Diagram SIGNAL PROCESSOR OUT AMP PD CN CONTROLLER VSS © 2014 ESPROS Photonics Corporation Characteristics subject to change without notice 1 Datasheet_epc134-139_digital-V2.5 www.espros.ch |
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