AD678
FEATURES
AC and DC Characterized and Specified
(K, B and T Grades) 200k Conversions per Second 1 MHz Full Power Bandwidth 500 k Hz Full Linear Bandwidth 72 d B S/N+D (K, B, T Grades) Twos plement Data Format (Bipolar Mode) Straight Binary Data Format (Unipolar Mode) 10 M⍀ Input Impedance 8-Bit or 16-Bit Bus Interface On-Board Reference and Clock 10 V Unipolar or Bipolar Input Range mercial, Industrial and Military Temperature
Range Grades MIL-STD-883 pliant Versions Available
12-Bit 200 k SPS plete Sampling ADC
REFOUT REFIN
BIPOFF AIN
AGND
FUNCTIONAL BLOCK DIAGRAM
CS SC OE EOCEN SYNC 12/8 EOC
VOLTAGE REF.
CONTROL LOGIC
12-BIT D/A
CONVERSION
CONVERTER
LOGIC
OUTPUT REGISTER
SAMPLE/ HOLD
GAIN STAGE
4-BIT FLASH A/D
CONVERTER
DB11
DB2 DB1 (R/L)
DB0 (HBE) VCC VEE VDD DGND
PRODUCT DESCRIPTION
The AD678 is a plete, multipurpose 12-bit monolithic analog-to-digital converter, consisting of a sample-hold amplifier (SHA), a microprocessor patible bus interface,...
