1 Features

• Linear input voltage range: ±1V

• 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: ±20μV/°C (maximum)

– Gain error: ±0.25% (maximum)

– Gain drift: ±40ppm/°C (maximum)

– Nonlinearity: ±0.025% (maximum)

• High CMTI: 150V/ns (minimum)

• Low EMI: Meets CISPR-11 and CISPR-25

standards

• Isolation ratings:

– AMC0230R: Basic isolation

– AMC0330R: 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

• Motor drives

• Photovoltaic inverters

• Server power supply units (PSU)

• EV charging stations

3 Description

The AMC0x30R is a precision, galvanically isolated

amplifier with a ±1V, high impedance input and singleended,

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 AMC0x30R 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 AMC0x30R 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 AMC0x30R comes in 8-pin, wide- and narrowbody

SOIC packages, and is fully specified over the

temperature range from –40°C to +125°C.