Texas Instruments

OPA2140AIDR

The OPA2140AIDR is a precision operational amplifier (op-amp) from Texas Instruments. It is designed for high-precision applications and offers several features that make it suitable for a wide range of uses.

Description:

The OPA2140AIDR is a low-noise, low-drift operational amplifier that is available in an 8-pin DIP (dual in-line package) or SOIC (small-outline integrated circuit) package. It is designed to provide high precision and accuracy in a wide range of applications.

Features:

Some of the key features of the OPA2140AIDR include:

1. Low input offset voltage: The OPA2140AIDR has an input offset voltage of typically 70µV, which is very low for an op-amp. This makes it suitable for high-precision applications where accuracy is critical.
2. Low input bias current: The input bias current of the OPA2140AIDR is typically 1pA, which is very low. This makes it suitable for use with high-impedance inputs, such as sensors or other devices that require low input current.
3. Low noise: The OPA2140AIDR has a low input voltage noise of 4.3nV/√Hz, which is ideal for applications that require low-noise amplification.
4. Precision gain: The OPA2140AIDR can achieve precision gains of up to 100,000, making it suitable for a wide range of applications that require high-precision amplification.
5. Wide supply voltage range: The OPA2140AIDR can operate on supply voltages from ±2.5V to ±18V, making it suitable for a wide range of applications.

Applications:

The OPA2140AIDR is suitable for a wide range of precision applications, including:

1. Strain gauge amplifiers: The low input offset voltage and low drift of the OPA2140AIDR make it ideal for use in strain gauge amplifiers, which require high precision and accuracy.
2. Medical instruments: The low noise and low input bias current of the OPA2140AIDR make it suitable for use in medical instruments, such as electrocardiogram (ECG) amplifiers and other medical monitoring equipment.
3. Sensor conditioning: The OPA2140AIDR can be used to condition signals from a variety of sensors, including temperature, pressure, and humidity sensors.
4. Data acquisition systems: The OPA2140AIDR can be used in data acquisition systems to provide high-precision amplification of signals from sensors and other devices.
5. Audio equipment: The low noise and precision gain of the OPA2140AIDR make it suitable for use in audio equipment, such as microphone preamplifiers and audio mixers.

Overall, the OPA2140AIDR is a versatile and high-performance operational amplifier that offers excellent precision and accuracy for a wide range of applications.