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ADC7802BP Datasheet(PDF) 1 Page - Burr-Brown (TI) |
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ADC7802BP Datasheet(HTML) 1 Page - Burr-Brown (TI) |
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1 / 13 page  ADC7802 Autocalibrating, 4-Channel, 12-Bit ANALOG-TO-DIGITAL CONVERTER FEATURES q TOTAL UNADJUSTED ERROR ≤ 1/2LSB OVER FULL TEMPERATURE RANGE q FOUR-CHANNEL INPUT MULTIPLEXER q LOW POWER: 10mW plus Power Down Mode q SINGLE SUPPLY: +5V q FAST CONVERSION TIME: 8.5 µs Including Acquisition q AUTOCAL: No Offset or Gain Adjust Required q UNIPOLAR INPUTS: 0V to 5V q MICROPROCESSOR-COMPATIBLE INTERFACE q INTERNAL SAMPLE/HOLD DESCRIPTION The ADC7802 is a monolithic CMOS 12-bit A/D converter with internal sample/hold and four-channel multiplexer. An autocalibration cycle, occurring auto- matically at power on, guarantees a total unadjusted error within ±1/2LSB over the specified temperature range, eliminating the need for offset or gain adjust- ment. The 5V single-supply requirements and stan- dard CS, RD, and WR control signals make the part very easy to use in microprocessor applications. Con- version results are available in two bytes through an 8- bit three-state output bus. The ADC7802 is available in a 28-pin plastic DIP and 28-lead PLCC, fully specified for operation over the industrial –40 °C to +85°C temperature range. Clock Control Logic Calibration Microcontroller and Memory Address Latch and Decoder Analog Multiplexer Capacitor Array Sampling ADC Three-State Input/Output BUSY 8-Bit Data Bus V REF AIN0 AIN1 AIN2 AIN3 CS RD WR SFR V REF +– A0 A1 ® International Airport Industrial Park • Mailing Address: PO Box 11400 • Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706 Tel: (520) 746-1111 • Twx: 910-952-1111 • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132 © 1990 Burr-Brown Corporation PDS-1050B Printed in U.S.A. June, 1993 |
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