描述 Description

The AMC0106M25 is a precision, functionally isolated, delta-sigma modulator with a ±250mV input voltage range. The isolation barrier separates parts of the system that operate on different common-mode voltage levels. The isolation barrier supports a working voltage up to 200VRMS / 280VDC and transient overvoltages up to 570VRMS / 800VDC.

With a small package size and low input voltage range, the AMC0106M25 is designed for high accuracy, isolated current sensing in space-constrained applications. The galvanic isolation barrier supports high common-mode transients and allows for isolating sensitive control circuitry from switching noise from the power stage.

The output bitstream of the AMC0106M25 is synchronized to an external clock. Combined with a sinc3, OSR 256 filter, the device achieves 16 bits of resolution with an 86dB dynamic range and a 78kSPS data rate.

The AMC0106M25 is available in an 8-pin, 0.65mm pitch VSON package and is specified over the extended industrial temperature range of –40°C to +125°C.

特性 Features

? Linear input voltage range: ±250mV
? Supply voltage range:
? High-side (AVDD): 3.0V to 5.5V
? Low-side (DVDD): 2.7V to 5.5V

? Low DC errors:
? Offset error: ±200μV (max)
? Offset drift: ±3μV/°C (max)
? Gain error: ±0.2% (max)
? Gain drift: ±40ppm/°C (max)

? High CMTI: 150V/ns (min)
? Missing high-side supply detection
? Low EMI: Meets CISPR-11 and CISPR-25 standards
? Functional isolation:
? 200VRMS, 280VDC working voltage
? 570VRMS, 800VDC transient overvoltage (60s)

? Fully specified over extended industrial temperature range: –40°C to +125°C