Texas Instruments AMC3330QDWERQ1 is an automotive precision voltage-sensing isolated amplifier with reinforced isolation and an integrated isolated DC/DC converter. Its 16-pin SOIC (DWE) package combines the signal-isolation path and isolated-side power generation, allowing single-supply operation from the low-voltage side.

The linear differential input range is -1 to +1 V with a fixed gain of 2 V/V. The recommended low-side supply is 3.0 to 5.5 V, supporting nominal 3.3 V or 5 V operation. It is specified for an ambient temperature range of -40 to +125 °C and is AEC-Q100 Grade 1 qualified.

Typical applications include isolated voltage sensing in HEV/EV onboard chargers, DC/DC converters, traction inverters and battery management systems. High-voltage signals require an appropriately designed resistor-divider network; the amplifier input must remain within its specified range. Review the TI datasheet for isolation ratings, pin connections and layout requirements before design-in.

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