1 Features

• 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: ±30ppm/°C (maximum)

• High CMTI: 150V/ns (minimum)

• Missing high-side supply detection

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

• Available input options:

– AMC0386M06: ±600V, 10MΩ

– AMC0386M10: ±1000V, 12.5MΩ

• Safety-related certifications:

– 7000VPK reinforced isolation per DIN EN IEC

60747-17 (VDE 0884-17)

– 5000VRMS isolation for 1 minute per UL1577

• Fully specified over the extended industrial

temperature range: –40°C to +125°C

2 Applications

• Server power supply units (PSU)

• Energy storage systems (ESS)

• Solar inverters

• EV charging stations

3 Description

The AMC0386 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 is synchronized

to an external clock. Combined with a sinc3, OSR

256 filter, the device achieves 14.8 effective bits of

resolution or 89dB of dynamic range, at a sample rate

of 39kSPS.

With the integrated resistive divider, excellent DC

accuracy, low temperature drift and high stability,

the AMC0386 achieves better than 1% accuracy

over lifetime and temperature without system-level

calibration.

The AMC0386 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.