The OP747AS is a precision single-supply operational amplifier from Analog Devices (ADI). It is designed for applications requiring high accuracy, low power consumption, and single-supply operation. This amplifier offers excellent DC performance, making it suitable for instrumentation and sensor signal conditioning.

Applications

• Precision instrumentation
• Sensor signal conditioning (e.g., pressure sensors, temperature sensors)
• Battery-powered equipment
• Portable medical devices
• Data acquisition systems

Features

• Single-Supply Operation: Operates from a single 3V to 36V supply.
• Low Input Offset Voltage: Typically 75 µV, ensuring high accuracy.
• Low Input Bias Current: Typically 0.7 nA, minimizing errors in high impedance circuits.
• High Open-Loop Gain: 120 dB typical, providing excellent signal amplification.
• Low Supply Current: 450 µA typical, suitable for power-sensitive applications.
• Rail-to-Rail Output Swing: Allows for maximum dynamic range in single-supply configurations.
• Wide Input Voltage Range: Extends below ground, accommodating various input signals.

Benefits

• High Accuracy: Low offset voltage and bias current ensure precise signal processing.
• Low Power Consumption: Extends battery life in portable applications.
• Versatile Single-Supply Operation: Simplifies power supply requirements.
• Improved Signal Integrity: High open-loop gain minimizes signal distortion.
• Wide Dynamic Range: Rail-to-rail output swing maximizes signal resolution.
• Robust Performance: Operates reliably in demanding industrial environments.

Additional Details

The OP747AS is available in various packages, including SOIC and PDIP. It features internal protection against overvoltage and short-circuit conditions. The amplifier's low noise performance makes it ideal for sensitive measurement applications. It is specified over the industrial temperature range (-40°C to +85°C) ensuring reliable operation in harsh environments.