1 Features
• Linear input voltage range: ±250 mV
• Low DC errors:
– Offset error: ±100 μV (max)
– Offset drift: 1 μV/°C (max)
– Gain error: ±0.2% (max)
– Gain drift: ±40 ppm/°C (max)
• High CMTI: 100 kV/μs (min)
• Low EMI: Meets CISPR-11 and CISPR-25
standards
• Safety-related certifications:
– 7070-VPEAK reinforced isolation per DIN EN
IEC 60747-17 (VDE 0884-17): 2021-10
– 5000-VRMS isolation for 1 minute per UL1577
• Fully specified over the extended industrial
temperature range: –40°C to +125°C
• Supports operation down to –55°C

2 Applications
• Shunt-resistor-based current sensing and isolated
voltage measurements in:
– Traction inverters
– Onboard chargers
– DC/DC converters
– HEV/EV DC chargers

3 Description
The AMC1306M25E is a precision, delta-sigma (ΔΣ)
modulator with the output separated from the input
circuitry by an isolation barrier that is highly resistant
to magnetic interference. This barrier is certified to
provide reinforced isolation of up to 7070 VPEAK
according to the DIN EN IEC 60747-17 (VDE
0884-17) and UL1577 standards, and supports a
working voltage up to 1.5 kVRMS. The isolation barrier
separates parts of the system that operate on different
common-mode voltage levels and protects the lowvoltage
side from voltages that can cause electrical
damage or be harmful to an operator.
The input of the AMC1306M25E is optimized for
direct connection to shunt resistors or other low
voltage-level signal sources. The excellent DC
accuracy and low temperature drift supports accurate
current control in onboard chargers (OBC), DC/DC
converters, traction inverters, or other high-voltage
applications. 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 AMC1306M25E is offered in a 8-pin, wide-body
SOIC package, is fully specified over the extended
industrial temperature range of –40°C to +125°C, and
supports operation down to –55°C.