1 Features
• AEC-Q100 qualified for automotive applications:
– Temperature grade 1: –40°C to +125°C, TA
• Integrated, high-voltage resistive divider for direct
AC voltage sensing without external resistors
• Linear input range and impedance: ±400V, 8.3MΩ
• Differential output
• Supply voltage range:
– High-side (VDD1): 3.0V to 5.5V
– Low-side (VDD2): 3.0V to 5.5V
• Low DC errors:
– Offset error: ±0.8mV (maximum)
– Offset drift: ±10μV/°C (maximum)
– Attenuation error: ±0.25% (maximum)
– Attenuation drift: ±40ppm/°C (maximum)
– Nonlinearity: 0.025% (maximum)
• High CMTI: 150V/ns (minimum)
• Low EMI: Meets CISPR-11 and CISPR-25 limits
• Safety-related certifications:
– 7000VPK reinforced isolation per DIN EN IEC
60747-17 (VDE 0884-17)
– 5000VRMS isolation for 1 minute per UL 1577

2 Applications
• Traction inverters
• Onboard chargers
• DC/DC converters
• Battery junction boxes

3 Description
The AMC0380D-Q1 is a precision, galvanically
isolated amplifier with a high-voltage AC, high
impedance input, and fixed-gain differential output.
The input is designed to connect directly to a highvoltage
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 and is certified to provide
reinforced isolation up to 5kVRMS (60s).
The AMC0380D-Q1 outputs a differential signal
proportional to the input voltage. The differential
output is insensitive to ground shifts and enables
routing the output signal over long distances.
The AMC0380D-Q1 has a linear input voltage range
of ±400V. With an integrated precision resistive
divider, the AMC0380D-Q1 achieves better than 1%
accuracy over the full temperature range, including
lifetime drift.
The AMC0380D-Q1 is available in a 15-pin, 0.65mm
pitch SSOP package. The device is fully specified
over the temperature range from –40°C to +125°C.