1 Features
• Linear input voltage range: ±50mV
• 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: ±50μV (maximum)
– Offset drift: ±1μV/°C (maximum)
– Gain error: ±0.2% (maximum)
– Gain drift: ±45ppm/°C (maximum)
– Nonlinearity: 0.04% (maximum)
• High CMTI: 150V/ns (minimum)
• Low EMI: Meets CISPR-11 and CISPR-25
standards
• Isolation ratings:
– AMC0202R: Basic isolation
– AMC0302R: Reinforced Isolation
• Safety-related certifications:
– DIN EN IEC 60747-17 (VDE 0884-17)
– UL1577
• Fully specified over the extended industrial
temperature range: –40°C to +125°C

2 Applications
• Industrial motor drives
• Frequency inverters
• Server Power Supply Units (PSU)
• Power Factor Correction (PFC)

3 Description
The AMC0x02R is a precision, galvanically isolated
amplifier with a ±50mV, 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. The isolation barrier is highly resistant to
magnetic interference. This barrier is certified to
provide reinforced isolation up to 5kVRMS (DWV
package) and basic isolation up to 3kVRMS (D
package) (60s).
The AMC0x02R 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 AMC0x02R 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 AMC0x02R comes in 8-pin, wide- and narrowbody
SOIC packages, and is fully specified over the
temperature range from –40°C to +125°C.