0
ACTIVE
Device type |
Current sensing |
Peak-to-peak input voltage range (V) |
50mV |
Interface type |
Serial CMOS |
Sample rate (max) (Msps) |
21 |
Rating |
Automotive |
CMTI (min) (kV/µs) |
75 |
Number of input channels |
1 |
Architecture |
Delta-Sigma |
SNR (dB) |
77 |
Operating temperature range (°C) |
-40 to 125 |
Power consumption (typ) (mW) |
85.8 |
SFDR (dB) |
87 |
Isolation rating |
Reinforced |
Withstand isolation voltage (VISO) (Vrms) |
4250 |
Working isolation voltage (VIOWM) (Vrms) |
1200 |
Transient isolation voltage (VIOTM) (VPK) |
6 |
Creepage (min) (mm) |
8 |
Clearance (min) (mm) |
8 |
SO-MOD (DWE)-16-106.09 mm² 10.3 x 10.3
The AMC3306M05-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 AMC3306M05-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.
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