AMC3336 Series
±1-V input, precision voltage sensing reinforced isolated modulator with integrated DC/DC
Manufacturer: Texas Instruments
Catalog
±1-V input, precision voltage sensing reinforced isolated modulator with integrated DC/DC
Key Features
• 3.3-V or 5-V single supply with integrated DC/DC converter±1-V input voltage range optimized for voltage measurementsInput resistance: 1 GΩ (typ)Low DC errors:Offset error: ±0.3 mV (max)Offset drift: ±4 µV/°C (max)Gain error: ±0.2% (max)Gain drift: ±40 ppm/°C (max)High CMTI: 90 kV/µs (min)System-level diagnostic featuresLow EMI: Meets CISPR-11 and CISPR-25 standardsSafety-related certifications:6000-VPEAKreinforced 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±1-V input voltage range optimized for voltage measurementsInput resistance: 1 GΩ (typ)Low DC errors:Offset error: ±0.3 mV (max)Offset drift: ±4 µV/°C (max)Gain error: ±0.2% (max)Gain drift: ±40 ppm/°C (max)High CMTI: 90 kV/µs (min)System-level diagnostic featuresLow EMI: Meets CISPR-11 and CISPR-25 standardsSafety-related certifications:6000-VPEAKreinforced 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 AMC3336 is a precision, isolated delta-sigma (ΔΣ) modulator, optimized for high-impedance AC voltage 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 AMC3336 is optimized for direct connection to a resistor network or other, high-impedance voltage-signal source. The excellent DC accuracy and low temperature drift support accurate voltage measurements over the extended industrial temperature range from –40°C to +125°C.
By using a digital filter (such as a sinc3filter) 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 AMC3336 is a precision, isolated delta-sigma (ΔΣ) modulator, optimized for high-impedance AC voltage 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 AMC3336 is optimized for direct connection to a resistor network or other, high-impedance voltage-signal source. The excellent DC accuracy and low temperature drift support accurate voltage measurements over the extended industrial temperature range from –40°C to +125°C.
By using a digital filter (such as a sinc3filter) 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.
