0
ACTIVE
Device type |
Current sensing |
Peak-to-peak input voltage range (V) |
250mV |
Interface type |
Serial CMOS |
Sample rate (max) (Msps) |
20 |
Rating |
Automotive, Catalog |
CMTI (min) (kV/µs) |
50 |
Number of input channels |
1 |
Architecture |
Delta-Sigma |
SNR (dB) |
84.5 |
Operating temperature range (°C) |
-40 to 125 |
Power consumption (typ) (mW) |
36 |
SFDR (dB) |
98 |
Isolation rating |
Reinforced |
Withstand isolation voltage (VISO) (Vrms) |
5000 |
Working isolation voltage (VIOWM) (Vrms) |
1500 |
Transient isolation voltage (VIOTM) (VPK) |
7 |
Creepage (min) (mm) |
8.5 |
Clearance (min) (mm) |
8.5 |
SOIC (DWV)-8-67.275 mm² 5.85 x 11.5
The AMC1303 (AMC1303x0510, AMC1303x0520, AMC1303x2510, and AMC1303x2520) is a family of precision, isolated delta-sigma (ΔΣ) modulators. The output is separated from the input circuitry by a capacitive isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide reinforced isolation of up to 7000VPK according to the DIN EN IEC 60747-17 (VDE 0884-17) and UL1577 standards, and supports a working voltage up to 1.5kVRMS
The input of the AMC1303 device is optimized for direct connection to shunt resistors or other, low-impedance signal sources. The small size, high DC accuracy, low temperature drift, and high common-mode transient immunity (CMTI) support accurate isolated current sensing in noisy high-voltage applications.
The output bitstream of the AMC1303 is synchronized to the internally generated clock and is Manchester coded (AMC1303Ex) or uncoded (AMC1303Mx). Combined with a digital low-pass filter (such as a Sinc-filter) the device achieves 85dB of dynamic range at an effective output data rate of 78kSPS.
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