Detailed Introduction to Isolated ADC chip
An Isolated ADC chip is a specialized analog-to-digital conversion device that integrates both analog-to-digital conversion and electrical isolation functions onto a single chip. Its primary function is to convert analog signals to digital signals while simultaneously providing electrical isolation between the analog input side and the digital output side. This breaks the direct current path between the two circuit domains while ensuring reliable signal transmission.
In applications such as industrial measurement, power monitoring, and medical equipment, measured signals often involve challenges such as high common-mode voltages and strong electromagnetic interference. Electrical isolation is essential for protecting downstream digital circuitry and suppressing ground loop interference, and isolated ADCs are specialized chips developed specifically to meet these requirements.
Specific model numbers of Isolated ADC chip
The AMC1333M10-Q1 is a precision delta-sigma modulator featuring an isolation barrier that separates the input and output circuits and offers exceptional immunity to electromagnetic interference. This isolation barrier is certified to provide reinforced isolation up to 8000 VPEAK-compliant with DIN EN IEC 60747-17 (VDE 0884-17) and UL1577 standards-and supports a working voltage of up to 1.5kVRMS.
The AMC1333M10-Q1 features a wide bipolar input voltage range of ±1V and high input resistance, allowing for direct connection to resistive dividers in high-voltage applications. Its output bitstream is synchronized with an internally generated clock. By processing the output bitstream through an integrated digital filter (such as those found in the TMS320F2807x or TMS320F2837x microcontroller series) for decimation, the device achieves 16-bit resolution and an 87dB dynamic range at a data rate of 39kSPS. The AMC1333M10-Q1 is available in an 8-pin wide-body SOIC package and features an industrial-grade operating temperature range of –40°C to +125°C.
Specific model numbers of Isolated ADC chip
The Isolated ADC chip parameters are as follows:
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Rating |
Automotive |
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Operating temperature range (°C) |
–40°C to 125°C |
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