AMC3311DWER-Texas Instruments-Price, Stock & Datasheet

The AMC3311 is a precision, isolated amplifier with a fully integrated, isolated DC/DC converter that allows single-supply operation from the low-side of the device. The reinforced capacitive isolation barrier is highly resistant to magnetic interference, is certified according to DIN EN IEC 60747-17 (VDE 0884-17) and UL1577, and supports a working voltage of up to 1200 V RMS.

The isolation barrier separates parts of the system that operate on different common-mode voltage levels and protects the low-voltage side from voltage levels that can cause electrical damage and are potentially harmful to an operator.

The input of the AMC3311 is optimized for direct connection to high-impedance resistive dividers that are typically used for sensing high voltages. The integrated isolated DC/DC converter allows measurement of non-ground-referenced signals and makes the device a unique solution for noisy, space-constrained applications. The high DC accuracy and low temperature drift support accurate voltage monitoring and control.

The AMC3311 is offered in a wide-body, 16-pin SOIC package, and is specified over the temperature range of –40°C to +125°C.

Single-supply operation (3.3 V or 5 V) with integrated DC/DC converter
Input voltage range (2 V) optimized for voltage measurements with high input impedance
Fixed gain: 1.0
Low DC errors:
- Offset error: ±1 mV (max)
- Offset drift: ±10 µV/°C (max)
- Gain error: ±0.2% (max)
- Gain drift: ±40 ppm/°C (max)
- Nonlinearity: ±0.02% (max)
High CMTI: 85 kV/µs (min)
System-level diagnostic features
Meets CISPR-11 and CISPR-25 EMI standards
Safety-related certifications:
- 6000-V PK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
- 4250-V RMS isolation for 1 minute per UL1577
Fully specified over the extended industrial temperature range: –40°C to +125°C