The INA821ID from Texas Instruments is a high-precision, low-power instrumentation amplifier designed to offer excellent accuracy and stability for a wide range of applications. This versatile amplifier is ideal for use in medical instrumentation, industrial process controls, and precision data acquisition systems, among other demanding environments.

Key Features

• High Precision: The INA821ID boasts a low offset voltage and low offset drift, ensuring precise measurements over time and temperature variations.
• Wide Supply Range: Operating on a supply voltage range from 2.7V to 36V, or ±1.35V to ±18V, this amplifier is flexible for both single and dual supply operations, making it suitable for various applications.
• Low Power Consumption: With a quiescent current of just 475 µA, the INA821ID is optimized for energy-efficient applications, helping to extend the battery life of portable devices.
• High Common-Mode Rejection Ratio (CMRR): The device offers a CMRR of 114 dB (typical), which is critical for applications where signals are subject to noise and interference from varying common-mode voltages.
• Wide Temperature Range: With an operating temperature range from -40°C to +125°C, the INA821ID is built to perform reliably in extreme conditions.

Applications

The INA821ID's combination of precision and robustness makes it an excellent choice for:

• Medical instrumentation such as ECG and non-invasive blood pressure monitors.
• Industrial control systems, including temperature and pressure measurement.
• Precision data acquisition for scientific and engineering research.
• Battery-powered and portable devices where power efficiency is crucial.

Package and Quality

The INA821ID is offered in a compact SOIC-8 package, making it easy to integrate into space-constrained designs. Texas Instruments is committed to high standards of quality and reliability, ensuring that the INA821ID meets stringent industry requirements for performance and durability.