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AD871JE датащи(PDF) 5 Page - Analog Devices |
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AD871JE датащи(HTML) 5 Page - Analog Devices |
5 / 16 page AD871 REV. A –5– PIN FUNCTION DESCRIPTIONS DIP LCC Symbol Pin No. Pin No. Type Name and Function VINA 1 1 AI (+) Analog Input Signal on the differential input amplifier. VINB 2 2 AI (–) Analog Input Signal on the differential input amplifier. AVSS 3, 25 5, 40 P –5 V Analog Supply. AVDD 4 6, 38 P +5 V Analog Supply. AGND 5, 24 9, 36 P Analog Ground. DGND 6, 23 10 P Digital Ground. DVDD 7, 22 33 P +5 V Digital Supply. BIT 12 (LSB) 8 16 DO Least Significant Bit. BIT 2–BIT 11 18–9 26–17 DO Data Bits 2 through 11. MSB 19 29 DO Inverted Most Significant Bit. Provides twos complement output data format. OTR 20 30 DO Out of Range is Active HIGH on the leading edge of code 0 or the trailing edge of code 4096. See Output Data Format Table III. CLK 21 31 DI Clock Input. The AD871 will initiate a conversion on the rising edge of the clock input. See the Timing Diagram for details. REF OUT 26 41 AO +2.5 V Reference Output. Tie to REF IN for normal operation. REF GND 27 42 AI Reference Ground. REF IN 28 43 AI Reference Input. +2.5 V input gives ±1 V full-scale range. BIT 1 (MSB) N/A 27 DO Most Significant Bit. DRVDD N/A 12, 32 P +5 V Digital Supply for the output drivers. DRGND N/A 11, 34 P Digital Ground for the output drivers. (See section on Power Supply Decoupling for details on DRVDD and DRGND.) OEN N/A 13 DI Output Enable. See the Three State Output Timing Diagram for details. NC N/A 3, 4, 7, 8, 14, 15, No Connect. 28, 35, 37, 39, 44 TYPE: AI = Analog Input; AO = Analog Output; DI = Digital Input; DO = Digital Output; P = Power; N/A = Not Available on 28-lead DIP, available only on 44-terminal surface mount package. PIN CONFIGURATIONS 28-Lead Side Brazed Ceramic DIP TOP VIEW (Not to Scale) AD871 BIT 11 BIT 12 (LSB) VINA VINB AVSS AVDD DVDD DGND AGND OTR CLK REF IN REF GND REF OUT AVSS DVDD AGND MSB BIT 10 BIT 9 BIT 8 BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 DGND 44-Terminal LCC 39 38 37 36 35 34 33 32 31 30 29 18 19 20 21 22 23 24 25 26 27 28 7 8 9 10 11 12 13 14 15 16 17 6 5 4 3 2 1 44 43 42 41 40 PIN 1 IDENTIFIER TOP VIEW (Not to Scale) NC = NO CONNECT NC AVDD NC AGND NC DRGND DVDD DRVDD CLK OTR MSB NC NC AGND DGND DRGND DRVDD OEN NC NC BIT 12 (LSB) BIT 11 AD871 |
Аналогичный номер детали - AD871JE |
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Аналогичное описание - AD871JE |
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