AMC3301 Series
±250-mV input, precision current sensing reinforced isolated amplifier with integrated DC/DC
Manufacturer: Texas Instruments
Catalog
±250-mV input, precision current sensing reinforced isolated amplifier with integrated DC/DC
Key Features
• 3.3-V or 5-V single supply with integrated DC/DC converter±250-mV input voltage range optimized for current measurement using shunt resistorsFixed gain: 8.2Low DC errors:Offset voltage: ±150 µV (max)Offset drift: ±1 µV/°C (max)Gain error: ±0.2% (max)Gain error drift: ±40 ppm/°C (max)Nonlinearity: ±0.04% (max)High CMTI: 85 kV/µs (min)System-level diagnostic featuresMeets CISPR-11 and CISPR-25 EMI standardsSafety-related certifications:6000-VPKreinforced isolation per DIN VDE V 0884-114250-VRMSisolation for 1 minute per UL1577Fully specified over the extended industrial temperature range: –40°C to +125°C3.3-V or 5-V single supply with integrated DC/DC converter±250-mV input voltage range optimized for current measurement using shunt resistorsFixed gain: 8.2Low DC errors:Offset voltage: ±150 µV (max)Offset drift: ±1 µV/°C (max)Gain error: ±0.2% (max)Gain error drift: ±40 ppm/°C (max)Nonlinearity: ±0.04% (max)High CMTI: 85 kV/µs (min)System-level diagnostic featuresMeets CISPR-11 and CISPR-25 EMI standardsSafety-related certifications:6000-VPKreinforced isolation per DIN VDE V 0884-114250-VRMSisolation for 1 minute per UL1577Fully specified over the extended industrial temperature range: –40°C to +125°C
Description
AI
The AMC3301 is a precision, isolated amplifier 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 VDE V 0884-11 and UL1577 and supports a working voltage of up to 1.2 kVRMS.
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 AMC3301 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.
The integrated DC/DC converter fault-detection and diagnostic output pin of the AMC3301 simplify system-level design and diagnostics.
The AMC3301 is a precision, isolated amplifier 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 VDE V 0884-11 and UL1577 and supports a working voltage of up to 1.2 kVRMS.
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 AMC3301 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.
The integrated DC/DC converter fault-detection and diagnostic output pin of the AMC3301 simplify system-level design and diagnostics.
