Product Summary

The AD694JN 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 of the AD694JN is buffered by an input amplifier that can be used to scale the input signal or buffer the output from a current mode DAC. Precalibrated input spans of 0 V to 2 V and 0 V to 10 V are selected by simple pin strapping; other spans may be programmed with external resistor.

Parametrics

AD694JN absolute maximum ratings: (1)Supply Voltage: +36 V; (2)VS to IOUT: +36 V; (3)Input Voltage: –0.3 V to +36 V; (4)Reference Short Circuit to Common: Indefinite; (5)Alarm Voltage, Pin 10: +36 V; (6)4 mA Adj, Pin 6: +1 V; (7)4 mA On/Off, Pin 9: 0 V to 36 V; (8)Storage Temperature Range: –65℃ to +150℃; (9)Lead Temperature, 10 sec Soldering: +300℃; (10)Maximum Junction Temperature: +150℃; (11)Maximum Case Temperature Plastic Package (N, R): +125℃; (12)Cerdip Package (Q): +125℃.

Features

AD694JN features: (1)4–20 mA, 0–20 mA Output Ranges; (2)Precalibrated Input Ranges: 0 V to 2 V, 0 V to 10 V; (3)Precision Voltage Reference. Programmable to 2.000 V or 10.000 V; (4)Single or Dual Supply Operation; (5)Wide Power Supply Range: +4.5 V to +36 V; (6)Wide Output Compliance; (7)Input Buffer Amplifier; (8)Open-Loop Alarm; (9)Optional External Pass Transistor to Reduce. Self-Heating Errors; (10)0.002% typ Nonlinearity.

Diagrams

AD694AQ functional block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
AD694JN
AD694JN

Analog Devices Inc

IC TRANSMITTER 4-20MA 16-DIP

Data Sheet

1-1: $7.21
AD694JNZ
AD694JNZ


IC TRANSMITTER 4-20MA 16-DIP

Data Sheet

0-1: $7.78
1-25: $6.54
25-100: $6.01
100-250: $5.48
250-500: $5.13
500-1000: $4.72