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Isolation Amplifier
Isolation amplifiers provide electrical isolation and an electrical safety barrier. They protect data-acquisition components from potentially destructive voltages present at remote transducers. These amplifiers are also useful when you need to amplify low-level signals in multi-channel applications. They can also eliminate measurement errors caused by ground loops. Amplifiers with internal transformers reduce circuit costs by eliminating the need for additional isolated power supply. We usually use them as analogue interfaces between systems with separated grounds. There are two types: In most applications, an output voltage is obtained by passing the output current through a resistor. Other possible applications:
 * Two ports:
 * When the DC/DC is not integrated.
 * When there are two isolated parts.
 * Three ports:
 * When the DC/DC is integrated.
 * The parts are isolated between them.
 * Floating pulse amplifier output voltage and current interface.
 * Instrumentation in high-noise environments.
 * Analogue front-end processing.
 * Medical instrumentation.