5-BIT OPTO ENCODER

The device IC-OV is an Optoelectronic encoder IC for absolute linear or angle measuring systems, e.g. glass scales or rotary encoders. Photodiodes Amplifiers Comparators and TTL-compatible push-pull output drivers for 5 tracks are monolithically integrated, as well as a reference Photodiode to control the LED current. The track pitch is 600 m. The outputs Switch to high when the amplified photoelectric currents exceed a preset threshold (constant-light evaluation). The operating point is determined by an external resistor at RSET. This resistor also establishes the setpoint for the LED current control. The control keeps the optical receive power constant, irrespective of the temperature or the effects of ageing. The driver stage of the LED current control makes it possible to connect an LED with series resistor directly. By iC-Haus