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AD774B - Complete 12-Bit A/D Converters

Key Features

  • Complete Monolithic 12-Bit A/D Converters with Reference, Clock, and Three-State Output Buffers Industry Standard Pinout High Speed Upgrades for AD574A 8- and 16-Bit Microprocessor Interface 8 ␮s (Max) Conversion Time (AD774B) 15 ␮s (Max) Conversion Time (AD674B) ؎5 V, ؎10 V, 0 V.
  • 10 V, 0 V.
  • 20 V Input Ranges Commercial, Industrial, and Military Temperature Range Grades MIL-STD-883-Compliant Versions Available Complete 12-Bit A/D Converters AD674B /AD774B.

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a FEATURES Complete Monolithic 12-Bit A/D Converters with Reference, Clock, and Three-State Output Buffers Industry Standard Pinout High Speed Upgrades for AD574A 8- and 16-Bit Microprocessor Interface 8 ␮s (Max) Conversion Time (AD774B) 15 ␮s (Max) Conversion Time (AD674B) ؎5 V, ؎10 V, 0 V–10 V, 0 V–20 V Input Ranges Commercial, Industrial, and Military Temperature Range Grades MIL-STD-883-Compliant Versions Available Complete 12-Bit A/D Converters AD674B /AD774B FUNCTIONAL BLOCK DIAGRAM 5V SUPPLY VLOGIC DATA MODE SELECT 12/8 CHIP SELECT CS BYTE ADDRESS/ SHORT CYCLE A0 READ/CONVERT R/C 1 2 3 4 5 CHIP ENABLE CE 6 12V/15V SUPPLY VCC 10V REFERENCE REF OUT 7 8 ANALOG COMMON AC 9 REFERENCE INPUT REF IN 10 –12V/–15V SUPPLY VEE 11 BIPOLAR OFFSET BIPOFF 12 10V SPAN INPUT 10VIN 13 2