The AD629ARZ is a high-performance difference amplifier engineered by Analog Devices Inc., designed to accurately measure voltage differences in the presence of high common-mode voltages up to ±270V. This precision amplifier is a crucial component for applications that require isolation and amplification of small differential voltages in the presence of large common-mode voltages, such as in industrial, medical, and automotive environments.

Key Features

• Wide Common-Mode Range: The AD629ARZ can handle common-mode voltages from -270V to +270V, making it highly versatile for various applications.
• High Accuracy: With a typical nonlinearity of ±0.003% max, the device ensures precise measurements critical for quality-sensitive applications.
• High CMRR: The Common-Mode Rejection Ratio (CMRR) of 86 dB (min) at 60 Hz allows for accurate readings in noisy environments with minimal interference.
• Single or Dual Supply Operation: The device can be powered from a single supply of 4.5 V to 36 V or a dual supply of ±2.25 V to ±18 V, providing flexibility in system design.
• Robust Design: The AD629ARZ is designed to handle harsh conditions, making it suitable for industrial and automotive applications.

Applications

The AD629ARZ is ideal for a broad range of applications, including:

• Motor control feedback systems
• Battery monitoring in energy systems
• Data acquisition systems
• Medical instrumentation
• Isolation amplifiers for general-purpose use

Product Specifications

The AD629ARZ comes in an 8-lead SOIC package and is characterized for operation from -40°C to +85°C. It is designed to be a robust and reliable solution for systems that require differential to single-ended conversion while maintaining high accuracy and linearity.

Conclusion

With its ability to manage high common-mode voltages and provide precise and stable measurements, the AD629ARZ from Analog Devices Inc. is an excellent choice for designers seeking a dependable difference amplifier for their high-voltage applications. Its combination of features and performance makes it a valuable component for ensuring the accuracy and integrity of electronic systems.