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ADC0834A Datenblatt(PDF) 1 Page - Texas Instruments |
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ADC0834A Datenblatt(HTML) 1 Page - Texas Instruments |
1 / 13 page ADC0834A, ADC0838A, ADC0834B, ADC0838B A/D PERIPHERALS WITH SERIAL CONTROL SLAS007 – AUGUST 1985 – REVISED OCTOBER 1986 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 Copyright © 1986, Texas Instruments Incorporated 1 • 8-Bit Resolution • Easy Microprocessor Interface or Stand- Alone Operation • Operates Ratiometrically or With 5-V Reference • 4- or 8-Channel Multiplexer Options With Address Logic • Shunt Regulator Allows Operation With High-Voltage Supplies • Input Range 0 to 5 V With Single 5-V Supply • Remote Operation With Serial Data Link • Inputs and Outputs are Compatible With TTL and MOS • Conversion Time of 32 µs at fclock = 250 kHz • Designed to Be Interchangeable With National Semiconductor ADC0834 and ADC0838 DEVICE TOTAL UNADJUSTED ERROR DEVICE A SUFFIX B SUFFIX ADC0834 ± 1 LSB ± 1/2 LSB ADC0838 ± 1 LSB ± 1/2 LSB description These devices are 8-bit successive- approxima- tion analog-to-digital converters, each with an input-configurable multichannel multi- plexer and serial input/output. The serial input/ output is configured to interface with standard shift registers or microprocessors. Detailed informa- tion on interfacing with most popular microproces- sors is readily available from the factory. The ADC0834 (4-channel) and ADC0838 (8-channel) multiplexer is software configured forsingle-ended or differential inputs as well as pseudo-differential input assignments. The differ- ential analog voltage input allows for common- mode rejection or offset of the analog zero input voltage value. In addition, the voltage reference input can be adjusted to allow encoding any smaller analog voltage span to the full 8 bits of resolution. The ADC0834AC, ADC0834BC, ADC0838AC, and ADC0838BC are characterized for operation from 0 °C to 70 °C. The ADC0834AI, ADC0834BI, ADC0838AI, and ADC0838BI are characterized for operation from –40°C to 85 °C. 1 2 3 4 5 6 7 14 13 12 11 10 9 8 V+ CS CH0 CH1 CH2 CH3 DGTL GND VCC DI CLK SARS DO REF ANLG GND AD0834 . . . N PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 COM DGTL GND VCC V+ CS DI CLK SARS DO SE REF ANLG GND ADC0838 . . . N PACKAGE (TOP VIEW) 32 1 20 19 910 11 12 13 4 5 6 7 8 18 17 16 15 14 CS DI CLK SARS DO CH3 CH4 CH5 CH6 CH7 ADC0838 . . . FN PACKAGE (TOP VIEW) PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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