ADC0832CCWM National Semiconductor, ADC0832CCWM Datasheet
ADC0832CCWM
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ADC0832CCWM Summary of contents
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... NSC MICROWIRE compatible — direct interface to COPS family processors n Easy interface to all microprocessors, or operates “stand-alone” Typical Application TRI-STATE ® registered trademark of National Semiconductor Corporation. COPS ™ and MICROWIRE ™ are trademarks of National Semiconductor Corporation. © 1999 National Semiconductor Corporation ...
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Connection Diagrams ADC0838 8-Channel Mux Small Outline/Dual-In-Line Package (WM and N) DS005583-8 Top View ADC0832 2-Channel MUX Small Outline Package (WM) DS005583-41 Top View ADC0838 8-Channel MUX Molded Chip Carrier (PCC) Package (V) DS005583-33 www.national.com ADC0834 4-Channel MUX Small Outline/Dual-In-Line ...
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... Ordering Information Part Number Analog Input Channels ADC0831CCN 1 ADC0831CCWM ADC0832CIWM 2 ADC0832CCN ADC0832CCWM ADC0834BCN 4 ADC0834CCN ADC0834CCWM ADC0838BCV 8 ADC0838CCV ADC0838CCN ADC0838CIWM ADC0838CCWM See NS Package Number M14B, M20B, N08E, N14A, N20A or V20A Total Package Unadjusted Error ± 1 Molded (N) SO(M) ± 1 SO(M) Molded (N) SO(M) ± 1 ⁄ Molded (N) 2 ± ...
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... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. + Current into V (Note 3) Supply Voltage, V (Note 3) CC Voltage Logic Inputs Analog Inputs Input Current per Pin (Note 4) Package Storage Temperature Package Dissipation = 25˚ ...
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Converter and Multiplexer Electrical Characteristics = 5V +0.1V REF REF CC apply from (Continued) MIN MAX Conditions Parameter CONVERTER AND MULTIPLEXER CHARACTERISTICS On Channel = 0V, I ...
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AC Characteristics (Continued) The following specifications apply for V CC Parameter — CLK Falling C pd1 pd0 Edge to Output Data Valid Data MSB First (Note 11) Data LSB First — Rising Edge ...
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Typical Performance Characteristics Linearity Error vs f CLK DS005583-46 Power Supply Current vs f CLK DS005583-29 Leakage Current Test Circuit (Continued) Power Supply Current vs Temperature (ADC0838, ADC0831, ADC0834) DS005583-47 Note: For ADC0832 add I . REF DS005583-3 7 Output ...
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TRI-STATE Test Circuits and Waveforms DS005583-51 Timing Diagrams Data Input Timing www.national.com DS005583-49 Data Output Timing DS005583-24 ADC0831 Start Conversion Timing DS005583- DS005583-52 DS005583-25 DS005583-26 ...
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Timing Diagrams (Continued) *LSB first output not available on ADC0831. ADC0831 Timing ADC0832 Timing ADC0834 Timing 9 DS005583-27 DS005583-28 DS005583-5 www.national.com ...
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Timing Diagrams (Continued) www.national.com 10 ...
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ADC0838 Functional Block Diagram 11 www.national.com ...
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Functional Description 1.0 MULTIPLEXER ADDRESSING The design of these converters utilizes a sample-data com- parator structure which provides for a differential analog in- put to be converted by a successive approximation routine. The actual voltage converted is always the difference ...
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Functional Description (Continued) Single-Ended MUX Mode MUX Address SGL/ ODD/ SELECT DIF SIGN Differential MUX ...
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Functional Description Since the input configuration is under software control, it can be modified, as required, at each conversion. A channel can be treated as a single-ended, ground referenced input for one conversion; then it can be reconfigured as part ...
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Functional Description (Continued) 8 Single-Ended DS005583-53 4 Differential DS005583-55 FIGURE 1. Analog Input Multiplexer Options for the ADC0838 3. On each rising edge of the clock the status of the data in (DI) line is clocked into the MUX address ...
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Functional Description 3.0 REFERENCE CONSIDERATIONS The voltage applied to the reference input to these convert- ers defines the voltage span of the analog input (the differ- ence between V and V ) over which the 256 IN(MAX) IN(MIN) possible output ...
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Functional Description (Continued) 5.0 OPTIONAL ADJUSTMENTS 5.1 Zero Error The zero of the A/D does not require adjustment. If the mini- mum analog input voltage value not ground a IN(MIN) zero offset can be done. The converter ...
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Applications FIGURE 4. Operating with a Temperature Compensated Reference FIGURE 5. Using the A/D as the System Supply Regulator Digital Link and Sample Controlling Software for the Serially Oriented COP420 and the Bit Programmable I/O INS8048 www.national.com DS005583-12 *4.5V V ...
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Applications (Continued) COP CODING EXAMPLE Mnemonic Instruction LEI ENABLES SIO’s INPUT AND OUTPUT ( OGI CLR A CLEARS ACCUMULATOR AISC 1 LOADS ACCUMULATOR WITH 1 XAS EXCHANGES SIO WITH ACCUMULATOR AND ...
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Applications (Continued) A “Stand-Alone” Hook-Up for ADC0838 Evaluation * Pinouts shown for ADC0838. For all other products tie to pin functions as shown. www.national.com Low-Cost Remote Temperature Sensor 20 DS005583-59 DS005583-60 ...
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Applications (Continued) Operating with Ratiometric Transducers (− XDR CC Digitizing a Current Flow DS005583-37 21 DS005583-15 www.national.com ...
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Applications (Continued) www.national.com Span Adjust Zero-Shift and Span Adjust DS005583-61 DS005583-62 ...
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Applications (Continued) Controller performs a routine to determine which input polarity (9-bit example) or which channel pair (10-bit example) provides a non-zero output code. This information provides the extra bits. Obtaining Higher Resolution DS005583-63 a) 9-Bit A/D DS005583-64 b) 10-Bit ...
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Applications (Continued) Diodes are 1N914 > all − < all − www.national.com Protecting the Input DS005583-18 High Accuracy Comparators DS005583-38 24 ...
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Applications (Continued) • Uses one more wire than load cell itself • Two mini-DIPs could be mounted inside load cell for digital output transducer • Electronic offset and gain trims relax mechanical specs for gauge factor and offset • Low ...
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Applications (Continued) • No power required remotely • 1500V isolation www.national.com Isolated Data Converter 26 DS005583-39 ...
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Applications (Continued) Two Wire Interface for 8 Channels 27 DS005583-21 www.national.com ...
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Applications (Continued) www.national.com Two Wire 1-Channels Interface 28 DS005583-22 ...
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Physical Dimensions inches (millimeters) unless otherwise noted Hermetic Dual-In-Line Package (WM) NS Package Number M14B 29 www.national.com ...
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued) www.national.com Hermetic Dual-In-Line Package (WM) NS Package Number M20B Molded Dual-In-Line Package (N) NS Package Number N08E 30 ...
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Molded Dual-In-Line Package (N) NS Package Number N14A Molded-Dual-In-Line Package (N) NS Package Number N20A 31 www.national.com ...
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... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...