AD674BBR Analog Devices Inc, AD674BBR Datasheet
AD674BBR
Specifications of AD674BBR
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AD674BBR Summary of contents
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PRODUCT DESCRIPTION The AD674B and AD774B are complete 12-bit successive- approximation analog-to-digital converters with three-state output buffer circuitry for direct interface to 8- and 16-bit microprocessor busses. A high-precision voltage reference and clock are included on chip, and the ...
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AD674B/AD774B–SPECIFICATIONS 10 –15 V 10% or –12 V LOGIC EE Model (AD674B or AD774B) Min Typ Max Min Typ Max RESOLUTION LINEARITY ERROR @ 25° MIN MAX DIFFERENTIAL LINEARITY ERROR (Minimum ...
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DIGITAL SPECIFICATIONS Parameter LOGIC INPUTS V High Level Input Voltage IH V Low Level Input Voltage IL I High Level Input Current IH I Low Level Input Current IL C Input Capacitance IN LOGIC OUTPUTS V High Level Output Voltage ...
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... Model Temperature AD674BJN 0°C to 70°C AD674BKN 0°C to 70°C AD674BAR –40°C to +85°C AD674BBR –40°C to +85°C AD674BAD –40°C to +85°C AD674BBD –40°C to +85°C AD674BTD –55°C to +125°C AD774BJN 0°C to 70°C AD774BKN 0° ...
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DEFINITION OF SPECIFICATIONS Linearity Error Linearity error refers to the deviation of each individual code from a line drawn from “zero” through “full scale.” The point used as “zero” occurs 1/2 LSB (1.22 mV for 10 V span) before the ...
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AD674B/AD774B Symbol Pin No. Type Name and Function AGND 9 P Analog Ground (Common Byte Address/Short Cycle conversion is started with A 0 cycle is initiated results. During Read (R with ...
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CIRCUIT OPERATION The AD674B and AD774B are complete 12-bit monolithic A/D converters that require no external components to provide the complete successive-approximation analog-to-digital conversion function. A block diagram is shown in Figure 5. 5V SUPPLY 1 V LOGIC DATA MODE ...
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AD674B/AD774B Circuit layout should attempt to locate the ADC, associated analog input circuitry, and interconnections as far as possible from logic circuitry. For this reason, the use of wire-wrap circuit construction is not recommended. Careful printed-circuit layout and manufacturing is ...
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12/8 CONTROL LOGIC The AD674B and AD774B contain on-chip logic to provide conversion initiation and data read operations from signals commonly available in microprocessor systems; this internal logic circuitry is shown in Figure 9. The ...
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AD674B/AD774B STANDALONE MODE “Standalone” mode is useful in systems with dedicated input ports available and thus not requiring full bus interface capabil- ity. Standalone mode applications are generally able to issue conversion start commands more precisely than full-control mode, resulting ...
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OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 28-Lead Ceramic DIP Package (D-28) 0.050 (12.83 0.59 + 0.01 – (14.98 0.085 1.42 (36.07) 0.095 (2.41) (2.16) 1.40 (35.56) + – 0.017 0.003 0.1 (2.54) + 0.047 ...
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AD674B/AD774B Revision History Location Data Sheet changed from REV REV. C. Edits to ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . ...