INA139NA/3KG4

The INA139NA/3KG4 is a precision instrumentation amplifier manufactured by Texas Instruments. This device is designed for high-performance applications requiring accurate signal amplification, particularly in environments where low noise and high common-mode rejection are critical.

Key Features:

1. Architecture: The INA139 is a three-op-amp instrumentation amplifier, which provides excellent input impedance and high common-mode rejection ratio (CMRR). This architecture minimizes the effects of noise and interference from external sources.

2. Input Voltage Range: The amplifier can handle a wide input voltage range, making it suitable for various sensor applications, including thermocouples, strain gauges, and other low-level signal sources.

3. Gain Configuration: The gain of the INA139 can be set using external resistors, allowing for flexibility in design. The typical gain range is from 1 to 1000, which can be adjusted based on the specific application requirements.

4. Low Noise: The device features low input voltage noise, which is crucial for applications that require high precision and accuracy. This characteristic ensures that the signal integrity is maintained even in noisy environments.

5. Power Supply: The INA139 operates on a dual power supply, typically ranging from ±2.5V to ±18V, providing versatility in various circuit designs. It also has low power consumption, making it suitable for battery-operated devices.

6. Temperature Range: The device is designed to operate over an extended temperature range, typically from -40°C to +85°C, ensuring reliability in harsh environments.

7. Package Type: The INA139NA/3KG4 is available in a standard 8-pin DIP (Dual In-line Package) configuration, which facilitates easy integration into existing designs and prototyping.

8. Applications: Common applications for the INA139 include medical instrumentation, industrial process controls, data acquisition systems, and any application requiring precise measurement of small signals in the presence of larger common-mode voltages.

Summary:

The INA139NA/3KG4 from Texas Instruments is a robust and versatile instrumentation amplifier that excels in precision applications. Its combination of high CMRR, low noise, and flexible gain settings makes it an ideal choice for engineers looking to amplify low-level signals accurately in a variety of demanding environments.