Texas Instruments' AMC1100 is a precision isolation amplifier with an output separated from the input circuitry by a silicon dioxide (SiO2 barrier that is highly resistant to magnetic interference. This barrier is certified to provide galvanic isolation of up to 4250 VPEAK, according to UL1577 and IEC60747-5-2. Used in conjunction with isolated power supplies, this device prevents noise currents on a high common-mode voltage line from entering the local ground and interfering with or damaging sensitive circuitry.
The AMC1100 input is optimized for direct connection to shunt resistors or other low-voltage-level signal sources. The excellent performance of the device enables accurate current and voltage measurement in energy-metering applications. The output signal common-mode voltage is automatically adjusted to either the 3 V or 5 V low-side supply.
The AMC1100 is fully specified over the extended industrial temperature range of -40°C to +105°C and is available in the SMD-type, wide-body SOIC-8 (DWV), and gullwing-8 (DUB) packages.