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.