adc1225ccd-1 National Semiconductor Corporation, adc1225ccd-1 Datasheet
adc1225ccd-1
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adc1225ccd-1 Summary of contents
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... Connection and Functional Diagrams Dual-In-Line Package TL H 5676 – 1 Top View Dual-In-Line Package TL H 5676 – 2 Top View TRI-STATE is a registered trademark of National Semiconductor Corporation C 1995 National Semiconductor Corporation TL H 5676 Key Specifications Resolution 12 bits plus sign Y The 24-pin ...
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... C (Notes Parameter Conditions CONVERTER CHARACTERISTICS Linearity Error Unipolar Input ADC1205CCJ ADC1225CCD Range ADC1205CCJ-1 ADC1225CCD-1 (Note 11) Unadjusted Zero Error Unipolar Input Range Unadjusted Positive and Negative Unipolar Input Full-Scale Error Range Negative Full-Scale Error Unipolar Input Range Full ...
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... V 5 05V a IN 05V V 5 05V a IN all other limits T T MIN MAX A J ADC1205CCJ-1 ADC1225CCD-1 Limit Tested Design Typ Units Limit Limit (Note 8) (Note 9) (Note 10) GND-0 05 GND ...
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... V 5 05V a IN 05V V 5 05V a IN all other limits T T MIN MAX A J ADC1205CCJ-1 ADC1225CCD-1 Limit Tested Design Typ Units Limit Limit (Note 8) (Note 9) (Note 10 ...
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AC Electrical Characteristics Note 4 Two on-chip diodes are tied to each analog input as shown below Errors in the A D conversion can occur if these diodes are forward biased more than 50 mV This means that if AV ...
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FIGURE 1b Simplified Error Curve vs Output Code Without Zero and Fullscale Adjustment FIGURE 1c Simplified Error Curve vs Output Code after Zero Fullscale Adjustment FIGURE 2 TRI-STATE Test Circuits and Waveforms TL H 5676 – ...
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Timing Diagrams FIGURE 3 Timing Diagram TL H 5676 – 13 FIGURE 4 Ready Out TL H 5676 – 14 FIGURE 5 Data Out 5676 – 15 ...
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8 ...
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Functional Description 1 0 THE A D CONVERSION 1 1 STARTING A CONVERSION When using the ADC1225 or ADC1205 with a microproces- sor starting an A-to-D conversion is like writing to an exter- nal memory location The WR and CS ...
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Functional Description (Continued) TABLE II Status Bit Locations and Meanings (Continued) Status Status Bit Bit Meaning Location DB1 EOC ‘‘High’’ indicates that the conversion is completed and data is transferred to the output latch DB0 INT ‘‘High’’ indicates that it ...
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Functional Description (Continued) FIGURE 10 FIGURE 11 FIGURE 5676 – 5676 – 5676 – 27 ...
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Functional Description (Continued) When using this method of conversion only one strobe is necessary and the rising edge can be used to read the current conversion results These methods reduce the throughput time of the conversion since ...
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Functional Description (Continued) ADC1205 Case 1 would be the only one that would appy to the ADC1205 since two RD strobes are necessary to retrieve the 13 bits of information on the 8 bit data bus Simulta- neously strobing WR ...
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Functional Description (Continued) A simpler although slightly less accurate approach is to ground V and V and adjust for all zeros at the a b IN( ) IN( ) output Error will be well under LSB if the adjustment is ...
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Typical Applications (Continued) Diodes are 1N914 Operating with Ratiometric Transducers XDR Protecting the Input 5676 – ...
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Typical Applications (Continued) Bipolar Input Temperature Converter a b 150 with resolution Note resistors are 1% metal film types Strain Gauge Converter with 025% Resolution and Single Power Supply Note 1) resistors are 1% ...
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... Ordering Information Temperature Range Non-Linearity 0 024% ADC1205CCJ-1 Package Outline Physical Dimensions inches (millimeters) Order Number ADC1205CCJ-1 or ADC1205CCJ ADC1225CCD-1 ADC1205CCJ J24A D28D Ceramic Dual-In Line Package (J) NS Package Number J24A ADC1225CCD J24A D28D ...
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... Physical Dimensions inches (millimeters) (Continued) Order Number ADC1225CCD-1 or ADC1225CCD LIFE SUPPORT POLICY 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 OF NATIONAL SEMICONDUCTOR CORPORATION As used herein 1 Life support devices or systems are devices or ...