OPA380AIDG4

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OPA380AIDG4 is a low-power, precision instrumentation amplifiers with very high common-mode rejection. It features a maximum supply voltage of 5.5V, very low noise so that it can provide high signal-to-noise ratio. Its low power operation makes it perfect for use in battery-powered applications. OPA380AIDG4 is well-known for its high accuracy and decent linearity, used in various applications.

OPA380AIDG4 Application Field:

OPA380AIDG4 offers great performance in sensor measurements such as medical and industrial temperature measurements, bridge sensor, strain gauges and pressure sensors, among others. It is suitable for amplifier or buffer applications, for example audio routing and recording, line drivers and differential amplifiers. OPA380AIDG4 can be used as part of active filter circuits, thanks to its high common-mode rejection ratio and low noise level.

OPA380AIDG4 Working Principle:

OPA380AIDG4 is a three-op-amp instrumentation amplifier which operates from a single power supply. It is configured by connecting two resistors in a minimum-gain bridge configuration to the input. OPA380AIDG4 offers high common-mode rejection and low noise operation. The amplifier is well-known for its low offset, stability, high power supply rejection and no temperature drift.

OPA380AIDG4 is made up of three independent amplifier stages. The first two stages are set up as a nested differential amplifier with the two-stage gain at unity. This allows the input signal to be amplified with a low-noise high common-mode rejection. The output stage is then used to provide the overall gain of the instrumentation amplifier.

In normal operation, the input signal is applied to the two balanced inputs so that the differential input is a sum of the two signals while their common-mode voltage is equal. This makes the non-inverting input and the inverting input identically affected by the common-mode input signal, allowing the OPA380AIDG4 to be used as an inverting or non-inverting amplifier, depending on the configuration.

The OPA380AIDG4 has excellent applications for use as an analog-to-digital converter as it can provide excellent linearity and resolution as well as very low distortion. In conclusion, the OPA380AIDG4 is a highly reliable, low-power, precision linear instrumentation amplifier ideal for use in various applications.

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