Product Summary

The AD694ARZ 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 AD694ARZ 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 of the AD694ARZ may be programmed with external resistor.

Parametrics

AD694ARZ absolute maximum ratings: (1)Supply Voltage: +36 V; (2)VS to IOUT: +36 V; (3)Input Voltage, (Either Input Pin 2 or 3): –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 +125℃; (9)Lead Temperature, 10 sec Soldering: +300℃; (10)Maximum Junction Temperature: +150℃; (11)Maximum Case Temperature: Plastic Package (N, R): +125℃, Cerdip Package (Q): +125℃.

Features

AD694ARZ 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

AD694ARZ block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
AD694ARZ
AD694ARZ

IC TRANSMITTER 4-20MA 16-SOIC
Data Sheet
0-1: $7.16
1-10: $6.51
10-100: $5.54
100-250: $5.05
250-500: $4.72
500-1000: $4.34
AD694ARZ-REEL
AD694ARZ-REEL

IC TRANSMITTER 4-20MA 16SOIC
Data Sheet
0-1: $6.17
1-10: $5.60
10-25: $5.19
25-100: $4.75
100-250: $4.35
250-500: $4.05