INA828ID

The INA828ID is a precision instrumentation amplifier manufactured by Texas Instruments. It is designed for high-performance applications requiring accurate signal amplification, particularly in environments with low-level signals and high common-mode voltages.

Key Features:

1. Architecture: The INA828ID utilizes a three-op-amp design, which provides excellent common-mode rejection and high gain accuracy. This architecture allows it to amplify differential signals while rejecting common-mode noise.

2. Gain Configuration: The gain of the INA828 can be set using a single external resistor, allowing for flexibility in applications. The gain can be adjusted from 1 to 1000, making it suitable for a wide range of signal levels.

3. Input Voltage Range: The amplifier has a wide input voltage range, accommodating signals that may be near the power supply rails. This feature is particularly useful in battery-operated devices and other low-voltage applications.

4. Low Noise: The INA828ID is designed to minimize noise, with a low input voltage noise density, making it ideal for applications that require high precision, such as medical instrumentation and sensor signal conditioning.

5. Power Supply: It operates on a dual power supply, typically ranging from ±2.5V to ±18V, which provides flexibility in various circuit designs. The device also features low power consumption, making it suitable for portable applications.

6. Temperature Stability: The INA828ID exhibits excellent temperature stability, ensuring consistent performance across a range of operating temperatures. This is crucial for applications in varying environmental conditions.

7. Package: The INA828ID is available in an 8-pin SOIC (Small Outline Integrated Circuit) package, which is compact and suitable for space-constrained designs.

8. Applications: Common applications for the INA828ID include medical devices (such as ECG and EEG monitors), industrial process controls, data acquisition systems, and any application requiring precise measurement of small differential signals.

Electrical Characteristics:

• Input Offset Voltage: Typically low, ensuring minimal error in signal amplification.
• Common-Mode Rejection Ratio (CMRR): High CMRR, which is essential for rejecting noise and interference from common-mode signals.
• Output Swing: The output can swing close to the supply rails, enhancing its usability in low-voltage applications.

Conclusion:

The INA828ID from Texas Instruments is a versatile and high-performance instrumentation amplifier that excels in precision applications. Its combination of low noise, high gain accuracy, and flexible gain configuration makes it a popular choice among engineers designing sensitive measurement systems.