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TSH22I датащи(PDF) 5 Page - STMicroelectronics |
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TSH22I датащи(HTML) 5 Page - STMicroelectronics |
5 / 11 page TSH22 5/11 APPLICATIONS INFORMATION TSH22 IN COMPARATOR APPLICATION The TSH22 is a dual high performances opera- tional amplifier featuring speed of 30MHz and sin- gle supply operation from 3V to 30V. Most of operational amplifiers are not suited for comparator use because of low transition speed, output signal incompatible with standard logics level and mainly, phase inversion. The phase inversion occures when a strong differ- ential signal is applied to the device inputs. The output level is then inverted and shows a wrong logic state. TSH22 does not present this problem- atic behaviour. Figure 1 : Basic comparator application Figure 3 : Transition speed@ 50mV overdrive Displayed curves below show the device re- sponse in standard comparator configuration with- out external components. Transition speed : Typical transition speed under a single 5V supply voltage is about 2 µs from 50mV overdrive. VOH min. is 3.7V and VOL max. is 0.2V (2k Ω load) making it compatible with stan- dard logic families. Figures 3 & 4 show output signal transition for a 50mV and 250mV input signal overdrive respec- tively of 3 µs and 1µs. Figure 2 : Operating conditions Figure 4 : Transition speed@ 250mV overdrive Vin+ Vref +5V Vout 2kW TSH22 |
Аналогичный номер детали - TSH22I |
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Аналогичное описание - TSH22I |
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