Slide 1 Slide 2 Slide 3 Slide 4 Slide 5 Slide 6 Slide 7 Slide 8 Slide 9 Slide 10 Slide 11 Slide 12 Slide 13 Slide 14 Slide 15 Slide 16 Slide 17 Slide 18 Product List
OCB100-KIT Auto-Calibration Design Kit Slide 7

The output circuitry consists of a three resistor voltage divider and two op amps configured as comparators. The voltage divider is used to generate a 1/3 Vcc and a 2/3 Vcc voltage reference for the comparators. As shown in the thresholds diagram, the upper comparator switches Low when the sensor output increases above 2/3 Vcc while the lower comparator switches Low when the senor output decreases below 1/3 Vcc. If the sensor output remains within the center bias region, both comparators will output a logical High.

PTM Published on: 2011-11-08