1 Features

• AEC-Q100 qualified for automotive applications:

– Temperature grade 1: –40°C to +125°C, TA

• Linear input voltage range: 0.13V to 2.25V

• High input impedance: 1GΩ (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: 0.05% (maximum)

• High CMTI: 50V/ns (minimum)

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

standards

• Isolation ratings:

– AMC0211R-Q1: Basic isolation

– AMC0311R-Q1: Reinforced Isolation

• Safety-related certifications:

– DIN EN IEC 60747-17 (VDE 0884-17)

– UL1577

2 Applications

• Traction inverters

• Onboard chargers

• DC/DC converters

3 Description

The AMC0x11R-Q1 is a precision, galvanically

isolated amplifier with a 2.25V, high impedance input

and differential output. The high-impedance input is

optimized for connection to high-impedance resistive

dividers or other voltage signal sources 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-Q1 outputs a single-ended signal

that is proportional to the input voltage. The fullscale

output is set by the voltage applied to the REFIN

pin. The output of the AMC0x11R-Q1 is designed

to connect directly to the input of an ADC. Connect

REFIN to the same reference voltage as the ADC to

match the ADC's dynamic input voltage range.

The AMC0x11R-Q1 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.