AMC0386中文资料Precision, high-voltage AC-input reinforced isolated modulator with external clock数据手册TI规格书

描述 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.

特性 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