The AMC1200 and AMC1200B are precision isolation amplifiers with an output separated from
the input circuitry by a silicon dioxide (SiO2) barrier that is highly
resistant to magnetic interference. This barrier has been certified to provide galvanic isolation
of up to 4250 VPEAK (AMC1200B) or 4000 VPEAK
(AMC1200) according to UL1577 and VDE V 0884-10. Used in conjunction with isolated power supplies,
these devices prevent noise currents on a high common mode voltage line from entering the local
ground and interfering with or damaging sensitive circuitry.
The input of the AMC1200 or AMC1200B is optimized for direct connection to shunt
resistors or other low voltage level signal sources. The excellent performance of the device
supports accurate current control resulting in system-level power saving and, especially in
motor-control applications, lower torque ripple. The common mode voltage of the output signal is
automatically adjusted to either the 3-V or 5-V low-side supply.
AMC1200 and AMC1200B are fully specified over the extended industrial temperature range of 40°C to
105°C and are available in a wide-body SOIC-8 package (DWV) and a gullwing-8 package (DUB).
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