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• Isolating Amplifiers, Avago Technologies. The range of isolation amplifier optocouplers from Avago Technologies is ideal for industrial environments where the optocoupler is used to insulate high voltages and isolate any unwanted signals. Sigma-delta modulator technology allows the current and voltage sensor families to provide precise measurements of phase current and bus voltage in motor drives, power inverters and voltage signals in general isolation circuits. These isolation amplifiers offer high CMR (common mode rejection) performance and built-in safety insulation. They are a suitable alternative to the Hall Effect isolation amplifiers, for current and voltage sensing in power converters. Various types available including: precision isolation amplifiers miniature isolation amplifiers precision optically isolated voltage sensors isolated linear sensing ICs isolation amplifiers with short circuit and overload detection automotive isolation amplifiers