2-V input, precision voltage sensing reinforced isolated amplifier

The AMC1311 is a precision,

isolated amplifier with an output separated from the input circuitry by a capacitive

isolation barrier that is highly resistant to magnetic interference. This barrier is

certified to provide reinforced galvanic isolation of up to 5 kVRMS

according to DIN EN IEC 60747-17 (VDE 0884-17) and UL1577 and supports a working

voltage of up to 1500 VRMS.

The isolation barrier separates parts

of the system that operate on different common-mode voltage levels and protects the

low-voltage side from voltages that can cause electrical damage or be harmful to an

operator.

The high-impedance input of the AMC1311 is optimized for connection to high-impedance resistive

dividers or any other high-impedance voltage signal source. The excellent DC

accuracy and low temperature drift support accurate, isolated voltage sensing and

control in closed-loop systems. The integrated missing high-side supply voltage

detection feature simplifies system-level design and diagnostics.

The AMC1311 is offered with two

performance grade options: the AMC1311B is specified over the

extended industrial temperature range of –55°C to +125°C, and the AMC1311 is specified for operation at –40°C to +125°C.