1 Features
• Linear input voltage range: 77mV to 2.25V
• High input impedance: 2.4GΩ (typical)
• Supply voltage range:
– High-side (VDD1): 3.0V to 5.5V
– Low-side (VDD2): 3.0V to 5.5V
• Single-ended output, ratiometric to VREFIN
– Reference Input: 2.7V to 5.5V
• Low DC errors:
– Offset error: ±1.5mV (maximum)
– Offset drift: ±30μV/°C (maximum)
– Gain error: ±0.25% (maximum)
– Gain drift: ±40ppm/°C (maximum)
– Nonlinearity: ±0.08% (maximum)
• High CMTI: 150V/ns (minimum)
• Low EMI: Meets CISPR-11 and CISPR-25
standards
• Isolation ratings:
– AMC0211R: Basic isolation
– AMC0311R: Reinforced isolation
• Safety-related certifications:
– DIN EN IEC 60747-17 (VDE 0884-17)
– UL1577
• Fully specified over the industrial temperature
range: –40°C to +125°C

2 Applications
• Motor drives
• Photovoltaic inverters
• Server power-supply units (PSU)
• EV charging stations

3 Description
The AMC0x11R is a precision, galvanically isolated
amplifier with a 2.25V, high impedance input and
single-ended ratiometric output. The high-impedance
input is optimized for connection to a high-impedance
resistive divider or other voltage signal source with
high output resistance.
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 AMC0x11R 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 AMC0x11R 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 AMC0x11R devices come in 8-pin, wide- and
narrow-body SOIC packages, and are fully specified
over the temperature range from –40°C to +125°C.