AD629ARZ-R7

The AD629ARZ-R7 is a high-performance differential amplifier from Analog Devices, Inc. (ADI), designed for applications requiring a high input common-mode voltage range. This device offers a combination of low offset, low offset drift, low gain error drift, and excellent common-mode rejection ratio (CMRR) over a wide frequency range, making it an ideal choice for precision amplification tasks.

Key Features and Specifications:

1. High Common-Mode Voltage Range:
   • The AD629ARZ-R7 can handle common-mode voltages up to ±270V, making it suitable for applications where high-voltage signals need to be amplified.
2. Low Offset and Low Drift:
   • The device features a low input offset voltage of 200μV and low drift characteristics, ensuring high accuracy and stability over time and temperature variations.
3. Excellent CMRR:
   • With a minimum CMRR of 77 dB at 500 Hz, the AD629ARZ-R7 effectively rejects common-mode signals, minimizing errors in the amplified output.
4. Wide Bandwidth:
   • The amplifier offers a bandwidth of 500 kHz, allowing it to amplify high-frequency signals with minimal distortion.
5. Wide Power Supply Range:
   • The AD629ARZ-R7 can operate with power supplies ranging from ±2.5V to ±18V, providing flexibility in power supply selection.
6. Compact Package:
   • The device is available in an 8-lead SOIC package, making it suitable for space-constrained applications.
7. Temperature Range:
   • The AD629ARZ-R7 operates over a temperature range of -40°C to +85°C, ensuring stable performance in a variety of environments.
8. Applications:
   • The AD629ARZ-R7 is suitable for a wide range of applications, including high-voltage current sensing, battery cell voltage monitors, power supply current monitors, motor controls, and isolation amplifiers where galvanic isolation is not required.

Summary:

The AD629ARZ-R7 is a versatile and high-performance differential amplifier that offers a combination of high common-mode voltage range, low offset, low drift, and excellent CMRR. Its compact package, wide power supply range, and temperature stability make it an ideal choice for precision amplification tasks in a variety of applications. With its ability to replace costly isolation amplifiers in many applications, the AD629ARZ-R7 provides a cost-effective and reliable solution for designers seeking high-quality differential amplification.