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TC7106 数据表(PDF) 21 Page - Microchip Technology |
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TC7106 数据表(HTML) 21 Page - Microchip Technology |
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21 / 34 page ![]() © 2008 Microchip Technology Inc. DS21455D-page 21 TC7106/A/TC7107/A FIGURE 10-4: Positive Temperature Coefficient Resistor Temperature Sensor. FIGURE 10-5: TC7106A, Using the Internal Reference: 200 mV Full Scale, 3 Readings-Per- Second (RPS). FIGURE 10-6: TC7107 Internal Reference: 200 mV Full Scale, 3RPS, V IN- Tied to GND for Single Ended Inputs. FIGURE 10-7: Circuit for Developing Under Range and Over Range Signals from TC7106A Outputs. TC7106A V+ V- V IN - V IN + V REF + V REF - Common 5.6 k Ω 160 k Ω R 2 20 k Ω 1N914 9V R1 20 k Ω + R 3 0.7%/×C PTC 100 kΩ 100 pF 0.47 µF 47 k Ω 0.22 µF To Display To Backplane 0.1 µF 21 1k Ω 22 k Ω 9V Set V REF = 100 mV TC7106A 0.01 µF + IN 1M Ω – To Pin 1 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 + – 100 k Ω 100 pF 0.47 µF 47 k Ω 0.22µF To Display 0.1 µF 21 1k Ω 22 k Ω Set V REF = 100 mV 0.01 µF + IN 1M Ω – To Pin 1 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 -5V +5V TC7107A 21 20 40 To Logic V CC V- To Logic V CC V+ CD4077 U/R O/R CD4023 OR 74C10 TC7106A 1 O/R = Over Range U/R = Under Range |
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