AMC0x00R Precision, ±250-mV Input,

Basic and Reinforced Isolated Amplifiers With Single-Ended, Ratiometric Output

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: ±0.2mV (maximum)

– Offset drift: ±3µV/°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

• Isolation ratings:

– AMC0200R: Basic isolation

– AMC0300R: 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 AMC0x00R is a precision, galvanically isolated

amplifier with a ±250mV, differential input and single-

ended, ratiometric output. The input is optimized for

direct connection to a shunt resistor or other low-

impedance 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 AMC0x00R 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 AMC0x00R 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 AMC0x00R comes in 8-pin, wide- and narrow-

body SOIC packages, and is fully specified over the

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

Package Information

PART NUMBER

PACKAGE(1)

PACKAGE SIZE(2)

AMC0200R

D (SOIC, 8)

4.9mm × 6mm

AMC0300R

DWV (SOIC, 8)

5.85mm × 11.5mm

(1)

For more information, see the Mechanical, Packaging, and

Orderable Information.

(2)

The package size (length × width) is a nominal value and

includes pins, where applicable.

GND1

INP

INN

VDD1

I

High-side supply

(3.3V or 5V)

+250mV

0 V

–250mV

OUT

GND2

VDD2

ADC

REFIN

MCU

VDDA

VREFHI

Low-side supply

(3.3 V or 5 V)

ADCIN

VSSA

½ VREFIN

VREFIN

Typical Application

AMC0300R, AMC0200R

SBASAR9 – DECEMBER 2025

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.