OPA132UG4

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OPA132UG4 is a single-supply, low-power, rail-to-rail, instrumentation amplifier from an OpAmp family. It operates from a single 2.7V to 12V supply, making it ideal for most battery-powered applications. It offers low distortion, noise and high output current.

This component can be used in a variety of applications, including medical and scientific instrumentation, portable audio systems, industrial transducers, and consumer electronics. It is well suited for low-frequency sine wave measurements, such as precision instrumentation scan circuitry or battery-powered medical devices, due to its low cost, low power, and excellent dc and ac performance.

The main features of OPA132UG4 are low input offset voltage of 1.25 µV and low input bias current of 0.2 pA at 25 °C, both making it ideal for a high accuracy, low noise instrumentation amplifier. Additionally, the input range of ±15 V (with Vin = 1 V) allows extended dynamic range. The low offset and input drift enable excellent accuracy over a wide temperature range. It also has high CMRR, excellent PSRR and low output impedance, making it suitable for battery-powered applications.

One of the key operation principles of the OPA132UG4 is its ability to amplify differential signals, whilst rejecting common-mode signals. This is achieved by forming three connected sections within the device: a differential amplifier, a gain amplifier and a buffer. The differential amplifier amplifies the signal voltage difference and converts it into current, which is then amplified by the gain and buffer sections. This amplifies only differential signals, rejecting the common-mode signal, which remains unchanged.

The OPA132UG4 is a very versatile component and can be used in a variety of applications. Its low noise, excellent ac and dc performance, and low power consumption make it ideal for portable audio systems, medical and scientific instrumentation, industrial transducers, and consumer electronics. It is suitable for low-frequency sine wave measurements due to its low cost, low power and excellent performance.

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