1 Features
• Linear input voltage range: ±250mV
• Supply voltage range:
– High-side (VDD1): 3.0V to 5.5V
– Low-side (VDD2): 3.0V to 5.5V
• Single-ended, ratiometric output
– Reference Input: 2.7V to 5.5V
• Low DC errors:
– Offset error: ±0.25mV (maximum)
– Offset drift: ±1μV/°C (maximum)
– Gain error: ±0.25% (maximum)
– Gain drift: ±35ppm/°C (maximum)
– Nonlinearity: 0.04% (maximum)
• High CMTI: 150V/ns (minimum)
• Low EMI: Meets CISPR-11 and CISPR-25
standards
• Functional Isolation:
– 200VRMS, 280VDC working voltage
– 570VRMS, 800VDC transient overvoltage (60s)
• Fully specified over the extended industrial
temperature range: –40°C to +125°C

2 Applications
• 48V motor drives
• 48V frequency inverters
• Analog input modules
• Power supplies

3 Description
The AMC0100R is a precision, galvanically isolated
amplifier with a ±250mV differential input, and singleended,
ratiometric output. The input is optimized for
direct connection to a shunt resistor or other lowimpedance
signal source.
The isolation barrier separates parts of the system
that operate on different common-mode voltage levels
or noise sensitive circuitry from power stages. The
isolation barrier supports a working voltage up to
200VRMS / 280VDC and transient over voltages up to
570VRMS / 800VDC (60s).
The AMC0100R outputs a single-ended signal
proportional to the input voltage. The full-scale output
is set by the voltage applied to the REFIN pin. The
output of the AMC0100R is designed to connect
directly to the input of an ADC. Connect REFIN to
the same reference voltage as the ADC to match the
dynamic input voltage range of the ADC.
The AMC0100R is available in a 8-pin, 0.65mm
pitch VSON package and is fully specified over the
temperature range from –40°C to +125°C.