AD822BRZ-REEL7

The AD822BRZ-REEL7 is a precision instrumentation amplifier manufactured by Analog Devices Inc., which is now part of Maxim Integrated. This component is designed for applications requiring high accuracy and low noise, making it ideal for sensor signal conditioning, medical instrumentation, and data acquisition systems.

Key Features:

1. Instrumentation Amplifier Configuration: The AD822B is a three-op-amp design that provides high input impedance and excellent common-mode rejection ratio (CMRR), which is crucial for amplifying small differential signals in the presence of large common-mode voltages.

2. Low Noise Performance: The amplifier boasts a low noise density, typically around 8 nV/√Hz, which helps in maintaining signal integrity, especially in sensitive applications.

3. Wide Supply Voltage Range: It operates over a wide supply voltage range from ±2.3 V to ±18 V, allowing flexibility in various circuit designs.

4. Gain Configuration: The gain of the AD822B can be set using a single external resistor, providing versatility for different applications. The gain can be adjusted from 1 to 1000, making it suitable for a wide range of signal levels.

5. High Input Impedance: With an input impedance of 10^9 ohms, the AD822B minimizes the loading effect on the sensor or source, ensuring accurate signal representation.

6. Low Offset Voltage: The device features a low input offset voltage, typically around 50 µV, which contributes to its high precision in measurement applications.

7. Temperature Range: The AD822BRZ-REEL7 is rated for operation over an extended temperature range of -40°C to +85°C, making it suitable for industrial and automotive applications.

8. Package Type: The component comes in a 8-lead SOIC (Small Outline Integrated Circuit) package, which is surface-mountable, facilitating easy integration into compact designs.

9. Applications: Common applications include medical devices (such as ECG and EEG), industrial process controls, strain gauge amplifiers, and any application requiring precise low-level signal amplification.

Electrical Characteristics:

• Supply Current: The typical supply current is around 1.5 mA, which is efficient for battery-operated devices.
• Common-Mode Rejection Ratio (CMRR): The CMRR is typically 100 dB, ensuring that common-mode signals do not affect the output significantly.
• Output Voltage Swing: The output can swing close to the supply rails, allowing for maximum dynamic range in signal processing.

Conclusion:

The AD822BRZ-REEL7 from Analog Devices Inc. is a robust and versatile instrumentation amplifier that excels in precision applications. Its combination of low noise, high input impedance, and adjustable gain makes it a preferred choice for engineers looking to amplify small differential signals accurately in various electronic systems.