ADC-0803 Harris, ADC-0803 Datasheet
ADC-0803
Related parts for ADC-0803
ADC-0803 Summary of contents
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... Copyright Harris Corporation 1997 ADC0802, ADC0803 Description The ADC0802 family are CMOS 8-Bit, successive-approxi- mation A/D converters which use a modified potentiometric ladder and are designed to operate with the 8080A control bus via three-state outputs. These converters appear to the processor as memory locations or I/O ports, and hence no interfacing logic is required ...
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... REF DAC AGND V 8 OUT (+) (-) IN ADC0802, ADC0803, ADC0804 “1” = RESET SHIFT REGISTER SET “0” = BUSY AND RESET STATE Q INPUT PROTECTION FOR ALL LOGIC INPUTS INPUT CLK A G1 RESET BV = 30V START F/F LADDER SUCCESSIVE AND APPROX. DECODER REGISTER ...
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... Absolute Maximum Ratings Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.5V Voltage at Any Input . . . . . . . . . . . . . . . . . . . . . . -0. Operating Conditions Temperature Range ADC0802/03LD -55 ADC0802/03/04LCD . . . . . . . . . . . . . . . . . . . . . . . . -40 ADC0802/03/04LCN . . . . . . . . . . . . . . . . . . . . . . . . . .0 ADC0803/04LCWM . . . . . . . . . . . . . . . . . . . . . . . . -40 CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specifi ...
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... INHI Logic “0” Input Current (All Inputs), I INLO Supply Current (Includes Ladder Current), I+ DATA OUTPUTS AND INTR Logic “0” Output Voltage ADC0802, ADC0803, ADC0804 (Notes 1, 7) (Continued) TEST CONDITIONS MIN 125 C and f = 640kHz, Unless Otherwise Specified ...
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... None of these A/Ds requires a zero-adjust. However all zero code is desired for an analog input other than 0V narrow full scale span exists (for example: 0. full scale) the V Timing Waveforms FIGURE 1A FIGURE 1C. t ADC0802, ADC0803, ADC0804 (Notes 1, 7) (Continued) TEST CONDITIONS MIN l = -360 4.75V OUT V ...
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... V+ SUPPLY VOLTAGE (V) FIGURE 4. CLK IN SCHMITT TRIP LEVELS vs SUPPLY VOLTAGE 400 800 f CLK FIGURE 6. FULL SCALE ERROR vs f ADC0802, ADC0803, ADC0804 500 400 300 200 100 5.00 5.25 5.50 FIGURE 3. DELAY FROM FALLING EDGE OUTPUT 1000 T(-) 100 5.00 5 ...
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... T AMBIENT TEMPERATURE ( A FIGURE 8. OUTPUT CURRENT vs TEMPERATURE Timing Diagrams CS WR ACTUAL INTERNAL STATUS OF THE CONVERTER (LAST DATA READ) INTR (LAST DATA NOT READ) INTR CS RD DATA OUTPUTS ADC0802, ADC0803, ADC0804 (Continued) 1 1.5 1.4 I SOURCE 1 2.4V OUT 1.2 1.1 1 100 125 - FIGURE 9. POWER SUPPLY CURRENT vs TEMPERATURE ...
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... FIGURE 11B. ACCURACY = constant negative slope and the abrupt upside steps are always 1 LSB in magnitude, unless the device has missing codes. Detailed Description The functional diagram of the ADC0802 series of A/D /2 pin). The digital output REF converters operates on the successive approximation princi- ple (see Application Notes AN016 and AN020 for a more detailed description of this principle) ...
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... Rejection This A/D gains considerable applications flexibility from the ana- log differential voltage input. The V ADC0802, ADC0803, ADC0804 to automatically subtract a fixed voltage value from the input reading (tare correction). This is also useful in 4mA - 20mA cur- rent loop conversion. In addition, common-mode noise can be reduced by use of the differential input ...
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... ADC0802, ADC0803, ADC0804 For low-source-resistance V /2 REF V REF the 2 ADJ. /2 pin. This REF /2 input. The REF FIGURE 13. OFFSETTING THE ZERO OF THE ADC0802 AND / of the 3V span or 1.5V. The 2 signal from 0.5V to 3.5V with V IN FIGURE 14. HANDLING 10V ANALOG INPUT RANGE 6- REF R 9 ANALOG R ...
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... LSB value ( 2.500V). REF ADC0802, ADC0803, ADC0804 Full Scale Adjust REF The full scale adjustment can be made by applying a differential input voltage which is 1 desired analog full scale voltage range and then adjusting ...
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... ADC0802 - ADC0804 150pF N.O. 4 CLK IN START 5 INTR ANALOG INPUTS AGND V 9 REF 10 DGND FIGURE 17. FREE-RUNNING CONNECTION Driving the Data Bus This CMOS A/D, like MOS microprocessors and memories, will require a bus driver when the total capacitance of the data bus gets large ...
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... This can be tied directly to the CS pin of the A/D, provided that no other devices are addressed at HEX ADDR: 4XXX or 5XXX. In Figure 24 the ADC0802 series is interfaced to the MC6800 microprocessor through (the arbitrarily chosen) Port B of the MC6820 or MC6821 Peripheral Interface Adapter (PlA). Here ...
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... OUT 8131 BUS COMPARATOR FIGURE 21. ADC0802 TO 8080A CPU INTERFACE 6-18 INT (14) I/O WR (27) (NOTE) I/O RD (25) (NOTE (13) (NOTE (16) (NOTE (11) (NOTE (9) (NOTE (5) (NOTE (18) (NOTE (20) (NOTE) 6 ...
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... AGND V 9 150pF REF 10 DGND † Numbers in parentheses refer to MC6800 CPU Pinout. †† Numbers or letters in brackets refer to standard MC6800 System Common Bus Code. FIGURE 23. ADC0802 TO MC6800 CPU INTERFACE 10K ADC0802 - ADC0804 CLK R 19 LSB ...
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... Type: Al Å Å Thickness: 10k 1k Metallization Mask Layout V /2 REF DGND DB 7 (MSB ADC0802, ADC0803, ADC0804 PASSIVATION: Type: Nitride over Silox Nitride Thickness: 8k Silox Thickness: 7k ADC0802, ADC0803, ADC0804 AGND V (-) V (+) 6-20 Å Å INTR CLK ...