The AMC3306M25-Q1 is a precision, isolated delta-sigma (ΔΣ) modulator, optimized for shunt-based current measurements. The fully integrated, isolated DC/DC converter allows single-supply operation from the low-side of the device which makes the device a unique solution for space-constrained applications. The reinforced capacitive isolation barrier is certified according to DIN EN IEC 60747-17 (VDE 0884-17) and UL1577 and supports a working voltage up to 1.2kVRMS.
The isolation barrier separates parts of the system that operate on different common-mode voltage levels and protects the low-voltage side from hazardous voltages and damage.
The input of the AMC3306M25-Q1 is optimized for direct connection to a low-impedance shunt resistor or other, low-impedance voltage source with low signal levels. The excellent DC accuracy and low temperature drift supports accurate current measurements over the extended industrial temperature range from –40°C to +125°C.
Use a digital filter (such as a sinc3 filter) to decimate the bitstream. By using this digital filter, the device achieves 16 bits of resolution with an 85dB dynamic range at a data rate of 78kSPS.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | AMC3306M25-Q1 Automotive, Precision, ±250mV Input, Reinforced Isolated Delta-Sigma Modulator With Integrated DC/DC Converter datasheet | PDF | HTML | 02 Aug 2024 |
| Application note | AMC High Side Power Supply Options | PDF | HTML | 15 Oct 2025 | |
| Application note | Isolated Converters CISPR25 Radiated Emissions | PDF | HTML | 13 Oct 2025 | |
| Application note | Clock Edge Delay Compensation With Isolated Modulators Digital Interface to MCUs (Rev. A) | PDF | HTML | 12 Jan 2024 |
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The AMC3306 evaluation module (EVM) is a platform for evaluating the AMC3306 product, a precision isolated amplifier with an integrated DC/DC converter that powers the high side of the amplifier. AMC3306 is a 7-kV reinforced isolation modulator designed for use in current shunt measuring (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SO-MOD (DWE) | 16 | Ultra Librarian |
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Second version
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