The AD629BN is a high-performance difference amplifier designed by Analog Devices Inc. to tackle the challenges of measuring small differential voltages in the presence of large common-mode signals. This precision amplifier is an ideal choice for a variety of applications, including motor control, battery monitoring, and data acquisition systems.

Key Features

• Wide Common-Mode Range: The AD629BN operates with a common-mode voltage range of -270V to +270V, making it suitable for applications that experience high common-mode voltages.
• High CMRR: With a high Common-Mode Rejection Ratio (CMRR) of 86 dB (min) at 60 Hz, this amplifier effectively minimizes the impact of common-mode noise and enhances measurement accuracy.
• Low Offset Voltage: It boasts a low input offset voltage, which ensures precision in the measurement of differential signals.
• Flexible Power Supply: The AD629BN is designed to work with dual power supplies ranging from ±2.3 V to ±18 V, or a single supply of 4.5 V to 36 V, providing flexibility in various system designs.
• Robust Protection: Equipped with input over-voltage protection, the device can handle up to ±35 V without damage, safeguarding the amplifier in demanding environments.

Applications

• Industrial Process Controls
• Motor Control Feedback Systems
• Battery Monitoring
• Isolation Amplifiers
• Data Acquisition Systems

Product Specifications

The AD629BN comes in a standard 8-lead PDIP package, ensuring compatibility with a wide range of PCB layouts. Its operating temperature range from -40°C to +85°C makes it reliable in extreme conditions. The product also features a bandwidth of 10 kHz, which is sufficient for many signal processing tasks.

For designers and engineers seeking a robust solution to differential signal amplification in high common-mode voltage environments, the AD629BN from Analog Devices Inc. stands out as a versatile and reliable component.