adc0820ccwmx National Semiconductor Corporation, adc0820ccwmx Datasheet
adc0820ccwmx
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adc0820ccwmx Summary of contents
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... Total Unadjusted ± Error Connection and Functional Diagrams Dual-In-Line, Small Outline and SSOP Packages Top View © 2004 National Semiconductor Corporation Features n Built-in track-and-hold function n No missing codes n No external clocking n Single supply — Easy interface to all microprocessors, or operates ...
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Connection and Functional Diagrams Ordering Information Part Number ADC0820BCV ADC0820BCWM ADC0820BCN ADC0820CCJ ADC0820CCWM ADC0820CIWM ADC0820CCN www.national.com (Continued) FIGURE 1. Total Unadjusted Error V20A — Molded Chip Carrier ± 1 ⁄ LSB M20B — Wide Body Small Outline 2 N20A — ...
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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. Supply Voltage ( Logic Control Inputs Voltage at Other Inputs and Output Storage Temperature Range Package Dissipation ...
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DC Electrical Characteristics The following specifications apply for V limits T =T =25˚ Parameter Conditions V , Logical “1” V =5.25V IN(1) CC Input Voltage Mode V , Logical “0” V =4.75V CS ...
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AC Electrical Characteristics The following specifications apply for V Parameter t , Access Time (Delay from ACC2 Falling Edge Output Valid Access Time (Delay from ACC3 Rising Edge of RDY to Output Valid ...
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TRI-STATE Test Circuits and Waveforms Timing Diagrams Note: On power-up the state of INT can be high or low. www.national.com 00550103 00550105 FIGURE 2. RD Mode (Pin 7 ...
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Timing Diagrams (Continued) FIGURE 3. WR-RD Mode (Pin 7 is High and t FIGURE 4. WR-RD Mode (Pin 7 is High and t FIGURE 5. WR-RD Mode (Pin 7 is High) Stand-Alone Operation 7 00550108 < ...
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Typical Performance Characteristics Logic Input Threshold Voltage vs. Supply Voltage Power Supply Current vs. Temperature (not including reference ladder) Accuracy vs. t www.national.com Conversion Time (RD Mode) vs. Temperature 00550134 00550136 RD 00550138 8 00550135 Accuracy vs 00550137 ...
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Typical Performance Characteristics Accuracy vs REF REF REF Output Current vs. Temperature (Continued) (+)-V (-)] t , Internal Time Delay vs. Temperature REF I 00550140 00550142 9 00550141 www.national.com ...
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Description of Pin Functions Pin Name Function 1 V Analog input; range =GND≤ DB0 TRI-STATE data output — bit 0 (LSB) 3 DB1 TRI-STATE data output — bit 1 4 DB2 TRI-STATE data output — bit 2 5 ...
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Functional Description which most closely approximates the analog input. In addi- tion, the “sampled-data” comparators used in the ADC0820 provide the ability to compare the magnitudes of several analog signals simultaneously, without using input summing amplifiers. This is especially ...
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Functional Description comparison mode (Figure 11 ). When WR is returned high after at least 600 ns, the output from the first set of compara- tors (the first flash) is decoded and latched. At this point the two 4-bit ...
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Functional Description Note: MS means most significant LS means least significant FIGURE 11. Operating Sequence (WR-RD Mode) OTHER INTERFACE CONSIDERATIONS In order to maintain conversion accuracy, WR has a maxi- mum width spec of 50 µs. When the MS ...
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Detailed Block Diagram www.national.com 00550115 FIGURE 12. 14 ...
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Analog Considerations 2.1 REFERENCE AND INPUT The two V inputs of the ADC0820 are fully differential and REF define the zero to full-scale input range of the con- verter. This allows the designer to easily vary ...
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Analog Considerations FIGURE 14. FIGURE 15. 2.3 INPUT FILTERING It should be made clear that transients in the analog input signal, caused by charging current flowing into V degrade the A/D’s performance in most cases. In effect the ADC0820 ...
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Typical Applications 8-Bit Resolution Configuration 00550126 9-Bit Resolution Configuration 17 00550127 www.national.com ...
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Typical Applications Telecom A/D Converter ± • kHz max • No track-and-hold needed • Low power consumption www.national.com (Continued) 00550128 8-Bit 2-Quadrant Analog Multiplier 18 Multiple Input Channels 00550129 00550130 ...
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Typical Applications (Continued) Fast Infinite Sample-and-Hold 19 00550131 www.national.com ...
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www.national.com 20 ...
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Physical Dimensions inches (millimeters) unless otherwise noted Order Number ADC0820BCWM, ADC0820CCWM or ADC0820CIWM Hermetic Dual-In-Line Package (J) Order Number ADC0820CCJ NS Package Number J20A SO Package (M) NS Package Number M20B 21 www.national.com ...
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Physical Dimensions www.national.com inches (millimeters) unless otherwise noted (Continued) Molded Dual-In-Line Package (N) Order Number ADC0820BCN or ADC0820CCN NS Package Number N20A Molded Chip Carrier Package (V) Order Number ADC0820BCV NS Package Number V20A 22 ...
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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 ...