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TC14433 Arkusz danych(PDF) 2 Page - Microchip Technology |
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TC14433 Arkusz danych(HTML) 2 Page - Microchip Technology |
2 / 20 page TC14433/A DS21394B-page 2 © 2002 Microchip Technology Inc. General Description The TC14433 is a low power, high performance, monolithic CMOS 3-1/2 digit A/D converter. The TC14433 combines both analog and digital circuits on a single IC, thus minimizing the number of external components. This dual slope A/D converter provides automatic polarity and zero correction with the addition of two external resistors and two capacitors. The full scale voltage range of this ratiometric IC extends from 199.9 millivolts to 1.999 volts. The TC14433 can operate over a wide range of power supply voltages, including batteries and standard 5-volt supplies. The TC14433A features improved performance over the industry standard TC14433. Rollover, which is the measurement of identical positive and negative signals, is specified to have the same reading within one count for the TC14433A. Power consumption of the TC14433A is typically 4mW, approximately one- half that of the industry standard TC14433. The TC14433/A is available in 24-Pin PDIP, 24-Pin CERDIP, 24-Pin SOIC (TC14433 device only), and 28-Pin PLCC packages. Typical Application 3 1 4 5 6 7 8 23 22 21 20 13 9 14 15 19 18 17 16 11 10 2 12 24 4 2 3 5 9 10 11 12 13 14 15 1 7 6 5 4 3 2 1 10 11 12 13 14 15 16 0.1 µF** 0.1 µF 0.1 µF 50 µF 0.1 µF** R1* *R1 = 470kΩ for 2V Range R1 = 27kΩ for 200mV Range **Mylar Capacitor VX 20k D C S R TC14433 Q Q D C S R +5V -5V 16 +5V +5V Segment Resistors 150 Ω (7) +5V Q Q -5V -5V -5V -5V 8 Minus Sign 200 Ω 51k 67 +5V -5V -5V -5V MPS-A12 (4) Common Anode Led Display MPS-A12 300k RC 0.1 14013B 5 3 9 11 1 2 13 12 6 714 10 fgedcba +5V 1 µF 1 µF 4 8 DS4 DS3 DS2 DS1 -5V MCP1525 4543B 1413 VIN VOUT VSS Plus Sign 110 Ω |
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