INA114AUG4

The INA114AUG4 is a precision, low noise, chopper-stabilized instrumentation amplifier, designed to provide exceptional ac and dc performance. It utilizes a proprietary, trimmed-offset architecture, which minimizes the effects of offset voltage drift and minimizes board space, while providing low noise, wide bandwidth, and low power dissipation. The INA114AUG4 is available in a variety of packages to suit a wide range of applications.

Application Field

The INA114AUG4 is an instrumentation amplifier that can be used in a wide range of applications, including but not limited to, medical instrumentation, audio processing, data acquisition, automotive modules and testing/measuring equipment. It has excellent ac and dc electrical specifications, as well as good noise rejection and wide bandwidth. The wide range of operational amplifiers and buffers built into the circuit also provide its users with excellent versatility.

Working Principle

The INA114AUG4 consists of a pair of differential amplifiers, formed by the upper and the lower half of the device, with a common input stage. The lower half operates as a non-inverting amplifier, while the upper half acts as an inverting amplifier. The output of the lower half is fed to the common input stage, while the output of the upper half is fed to an output buffer. The output of the buffer is then connected to the output pin. The INA114AUG4 provides a high common-mode rejection ratio of 140dB, a low output offset voltage of 30μV, and input bias current of 50pA making it ideal for low-level signal measurements. Additionally, the INA114AUG4 is characterized by its low distortion, excellent supply noise rejection and minimal drift.

Conclusion

The INA114AUG4 is an excellent choice of instrumentation amplifier for applications that require low noise, wide bandwidth and low power dissipation. It is designed to provide exceptional ac and dc performance, while minimizing the effects of offset voltage drift. Additionally, the INA114AUG4 provides excellent common-mode rejection ratio, low output offset voltage, and low distortion and noise rejection, making it an ideal choice for medical instrumentation, audio processing, data acquisition, automotive modules, and testing/measuring equipment.