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 or DC voltage sensing without external

resistors

• Better than 1% accuracy over temperature and

lifetime without system-level calibration

• Supply voltage range:

– High-side (AVDD): 3.0V to 5.5V

– Low-side (DVDD): 2.7V to 5.5V

• Low DC errors:

– Offset error: ±0.9mV (maximum)

– Offset drift: ±7μV/°C (maximum)

– Attenuation error: ±0.25% (maximum)

– Attenuation drift: ±40ppm/°C (maximum)

• High CMTI: 100V/ns (min)

• Missing high-side supply detection

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

• Available input options:

– AMC0386M04-Q1: 400V, 8MΩ

– AMC0386M06-Q1: 600V, 10MΩ

– AMC0386M10-Q1: 1000V, 12.5MΩ

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

standards

• Safety-related certifications:

– 7000VPK reinforced isolation per DIN EN IEC

60747-17 (VDE 0884-17)

– 5000VRMS isolation for 1 minute per UL1577

2 Applications

• Traction inverters

• Onboard chargers

• DC/DC converters

• Battery junction box

3 Description

The AMC0386-Q1 is a precision, galvanically isolated

delta-sigma (ΔΣ) modulator with a high-voltage, high

impedance input, and external clock. The input is

designed to connect directly to a high-voltage 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 of up to 5kVRMS (60s).

The output bitstream of the AMC0386-Q1 is

synchronized to an external clock. Combined with a

sinc3, OSR 256 filter, the device achieves 16 bits of

resolution with an 84dB dynamic range and a 39kSPS

data rate.

With its integrated resistive divider, excellent DC

accuracy, low temperature drift and high stability,

the AMC0386-Q1 achieves better than 1% accuracy

over lifetime and temperature without system-level

calibration.

The AMC0386-Q1 is available in a 15-pin, 0.65mm

pitch SSOP package and is fully specified over the

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