1 Features
• ±250-mV input voltage range optimized for current
measurements using shunt resistors
• Fixed gain: 8.2 V/V
• Low DC errors:
– Offset error: ±0.2 mV (max)
– Offset drift: ±3 μV/°C (max)
– Gain error: ±0.3% (max)
– Gain drift: ±50 ppm/°C (max)
– Nonlinearity: 0.03% (max)
• 3.3-V operation on high-side and low-side
• System-level diagnostic features
• Safety-related certifications:
– 7070-VPK reinforced isolation per DIN EN IEC
60747-17 (VDE 0884-17)
– 5000-VRMS isolation for 1 minute per UL1577
• Fully specified over the extended industrial
temperature range: –40°C to +125°C

2 Applications
• Shunt-resistor-based current sensing in:
– Motor drives
– Frequency inverters
– Uninterruptible power supplies

3 Description
The AMC1301 is a precision, isolated amplifier with
an 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 kVRMS.
The isolation barrier separates parts of the system
that operate on different common-mode voltage levels
and protects the low-side from voltage levels that can
cause electrical damage and are potentially harmful to
an operator.
The input of the AMC1301 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, frequency inverters, or other highvoltage
applications. The integrated common-mode
overvoltage and missing high-side supply voltage
detection features of the AMC1301 simplify systemlevel
design and diagnostics.
The AMC1301 is fully specified over the extended
industrial temperature range of –40°C to +125°C
and is available in a wide-body 8-pin SOIC (DWV)
package. The AMC1301S is specified over the
temperature range of –55°C to +125°C.