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FEATURES 4–20 mA, 0–20 mA Output Ranges Precalibrated Input Ranges:
0 V to 2 V, 0 V to 10 V Precision
Voltage Reference
Programmable to 2.
000 V or 10.
000 V Single or Dual Supply Operation Wide Power Supply Range: 4.
5 V to 36 V Wide Output Compliance Input Buffer Amplifier Open-Loop Alarm Optional External Pass Transistor to Reduce
Self-Heating Errors 0.
002% Typ Nonlinearity
4–20 mA Transmitter AD694
FUNCTIONAL BLOCK DIAGRAM
PRODUCT DESCRIPTION The AD694 is a monolithic current transmitter that accepts high level signal inputs to drive a standard 4–20 mA current loop for the control of valves, actuators, and other devices commonly used in process control.
The input signal is buffered by a...