1 Features
1• Pin-compatible family optimized for shunt-resistorbased
current measurements:
– ±50-mV or ±250-mV input voltage ranges
– Manchester coded or uncoded bitstream
options
• Excellent DC performance:
– Offset error: ±50 μV or ±100 μV (max)
– Offset drift: 1 μV/°C (max)
– Gain error: ±0.2% (max)
– Gain drift: ±40 ppm/°C (max)
• Transient immunity: 100 kV/μs (typ)
• System-level diagnostic features
• Safety-related certifications:
– 7000-VPEAK reinforced isolation per DIN VDE V
0884-11: 2017-01
– 5000-VRMS isolation for 1 minute per UL1577
– CAN/CSA no. 5A-component acceptance
service notice and IEC 62368-1 end equipment
standard
• Fully specified over the extended industrial
temperature range: –40°C to +125°C

2 Applications
• Shunt-resistor-based current sensing and isolated
voltage measurements in:
– Industrial motor drives
– Photovoltaic inverters
– Uninterruptible power supplies

3 Description
The AMC1306 is a precision, delta-sigma (ΔΣ)
modulator with the output separated from the input
circuitry by a capacitive double isolation barrier that is
highly resistant to magnetic interference. This barrier
is certified to provide reinforced isolation of up to
7000 VPEAK according to the DIN VDE V 0884-11 and
UL1577 standards. Used in conjunction with isolated
power supplies, this isolated modulator separates
parts of the system that operate on different commonmode
voltage levels and protects lower-voltage parts
from damage.
The input of the AMC1306 is optimized for direct
connection to shunt resistors or other low voltagelevel
signal sources. The unique low input voltage
range of the ±50-mV device allows significant
reduction of the power dissipation through the shunt
and supports excellent ac and dc performance. The
output bitstream of the AMC1306 is Manchester
coded (AMC1306Ex) or uncoded (AMC1306Mx),
depending on the derivate. By using an integrated
digital filter (such as those in the TMS320F2807x or
TMS320F2837x microcontroller families) to decimate
the bitstream, the device can achieve 16 bits of
resolution with a dynamic range of 85 dB at a data
rate of 78 kSPS.
The bitstream output of the Manchester coded
AMC1306Ex versions support single-wire data and
clock transfer without having to consider the setup
and hold time requirements of the receiving device.