OPA2349UA/2K5G4

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OPA2349UA/2K5G4 is a popular linear amplifier device that belongs to the group of instrumentation Operational Amplifiers (OP Amps), Buffer Amps. It is widely used for a variety of purposes, from audio buffering, gain control, and signal level shifting, to amplifying low level signals, increasing precision of transducers, and isolation of analog circuits.

A key feature of the device is its very low current draw. It has the lowest input offset current (1.7pA max) of all other amplifiers in its class, and its input bias current is 6.2nA (1µA max). This allows the device to be used for many low input signal applications with excellent signal-to-noise ratio.

The OPA2349UA/2K5G54 offers balanced inputs, meaning it can accept signals from highly sensitive transducers with superior noise rejection. It has a large common-mode rejection ratio (CMR) of 132dB min, a gain bandwidth of 1.46MHz and an output signal swing of ±16V. This makes it an ideal choice for signal conditioning and high-performance signal amplification.

Apart from a single op-amp mode, the device can also be used in a differential input configuration. This allows the user to take the output of two transducers and connect it to the OPA2349UA/2K5G54 to measure the difference in their outputs. This is useful in temperature and strain gage measurements, where a differential arrangement is preferred to accurately measure small changes in signal levels.

The OPA2349UA/2K5G54 is available in a variety of packages, making it suitable for different applications. It has an 8-pin DIP, SOIC, and TO-5 single stage packages, as well as a 14-pin DIP dual stage package. There is also an SOIC 4-channel version available, which can be connected in parallel to increase the output voltage swing.

The OPA2349UA/2K5G54 is a versatile device that is suitable for many applications. It is designed to be used in AC and DC coupled circuits and can be used in single-ended or differential input configurations. Its low current draw makes it ideal for low level signal amplification, while its excellent common-mode rejection and high CMR make it suitable for signal conditioning and transducer measurement applications. With options for a range of packages, the OPA2349UA/2K5G54 ensures there is a versatile and high performance amplifier for every application.

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