680387-2

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680387-2 is a field-effect transistor (FET)-based impedance converter which is a key component in the application areas such as automotive, aerospace, industrial and medical electronics. It is mostly used to convert low-voltage analog signals into higher voltages for analog-to-digital conversion and in precision instrumentation. The 680387-2 is a single channel device and is composed of three major blocks: a low-power input stage, a high output power stage, and a wide bandwidth driver stage.

The 680387-2 impedance converter features a low input impedance and high output impedance, offering superior performance over traditional transformers and opto-isolators. As a result, they are able to deliver high-accuracy scaling and level shifting of signals without limitations on the signal quality. In addition, they feature low-noise and high bandwidth, consistent in all applications.

The 680387-2 operates on a unique circuit topology. It has two main components: a low-power input stage and a high output power stage. The low-power input stage is composed of an FET amplifier, an isolation transformer, and two impedance adjustment capacitors. The high output power stage is composed of two FET amplifiers, a transformer, and two variable output impedance capacitors. The amplifier topology is based on a positive feedback circuit which provides constant power gain and low distortion performance over a wide range of output voltages. This allows for accurate scaling of analog signals over a wide range.

The transformer in the 680387-2 transformer is high frequency isolated at all times, allowing for clean and stable high-voltage conversion without any interference. This eliminates the need for external gain setting resistors and offers excellent accuracy and precision. The FET amplifier also provides a split load, eliminating the need for high power dissipation.

The 680387-2 is a low power consumption device and is capable of operating from a single supply voltage. This allows for simpler and cost-effective power supply design while providing a reliable operation. The output of the converter is stable and exhibits low noise, which helps eliminate any unwanted disturbances.

The 680387-2 converter is an ideal choice for applications requiring precision signal scaling and conversion over a wide range. Its unique circuit topology, high accuracy, low power consumption, and low noise characteristics make it an ideal solution for precision instrumentation, automotive, aerospace, industrial and medical electronics applications.

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