AD8221ARZ

The AD8221ARZ is a precision instrumentation amplifier from Analog Devices, designed for accurate and low-noise signal amplification. It is suitable for a variety of applications including medical instrumentation, sensor interfacing, and data acquisition systems. Here are the key features and specifications:

1. Type:
   • Instrumentation Amplifier: Provides precise and stable amplification of low-level signals with high common-mode rejection.
2. Gain:
   • Fixed Gain: Features a fixed gain of 1, making it suitable for applications requiring consistent amplification without the need for external resistors to set gain.
3. Input Offset Voltage:
   • Low Input Offset Voltage: Offers a low input offset voltage of 50 µV (maximum), ensuring minimal error in the amplified output.
4. Input Bias Current:
   • Low Input Bias Current: Provides a low input bias current of 1 nA (maximum), reducing error due to bias current variations.
5. Common-Mode Rejection Ratio (CMRR):
   • High CMRR: Features a high common-mode rejection ratio of 120 dB (typical), which improves performance in environments with significant common-mode noise.
6. Output Voltage Range:
   • Rail-to-Rail Output: Supports rail-to-rail output operation, allowing the output voltage to swing very close to the supply rails, maximizing dynamic range.
7. Power Supply:
   • Supply Voltage: Operates with a single supply voltage ranging from 2.3V to 5.5V, providing flexibility in various power supply configurations.
8. Package Type:
   • 8-Pin SOIC Package: Housed in an 8-pin SOIC (Small Outline Integrated Circuit) package for compact and surface-mount applications.
9. Applications:
   • Medical Instrumentation: Ideal for amplifying signals from medical sensors and equipment.
   • Sensor Interfacing: Suitable for interfacing with various types of sensors requiring precise amplification.
   • Data Acquisition Systems: Used in systems that require accurate measurement and data collection.
10. Features:
    • Low Noise: Designed for low noise operation, making it suitable for sensitive applications.
    • High Accuracy: Provides high accuracy with minimal drift and offset errors.

The AD8221ARZ is a versatile and high-performance instrumentation amplifier that ensures precise signal amplification with low noise and high accuracy, making it ideal for demanding applications in medical, industrial, and data acquisition systems.