The AD693AQ from Analog Devices Inc. is a state-of-the-art loop-powered 4-20 mA sensor transmitter that integrates a precision instrumentation amplifier (IA) and a voltage-to-current converter on a single monolithic chip. This advanced device is designed to condition and transmit analog signals over long distances where noise immunity and signal integrity are critical requirements.

Key Features

• Loop-Powered Operation: The AD693AQ can operate on supply voltages as low as 10 V and up to 36 V, making it ideal for 4-20 mA current loop systems.
• High Accuracy: With a nonlinearity specification of less than ±0.01%, the AD693AQ ensures precise signal conditioning for critical applications.
• Wide Input Range: The device can accept differential input signals in the range of ±10 mV to ±1 V, providing flexibility for various sensor types.
• Burnout Current Detection: The transmitter includes a burnout current feature that detects sensor failures or disconnections, enhancing system reliability.
• Temperature Compensation: The AD693AQ offers excellent temperature stability, thanks to its built-in temperature compensation circuitry.
• Rugged Construction: Encased in a robust package, the AD693AQ is designed to withstand harsh industrial environments.

Applications

The AD693AQ is an ideal choice for a wide array of industrial and process control applications. It is particularly suited for:

• 4-20 mA current loop systems in industrial environments
• Remote industrial sensors and transducers
• Process control systems
• Data acquisition systems
• Factory automation systems

Technical Specifications

For detailed technical specifications, application notes, and support, visit the Analog Devices Inc. website or contact their support team.