Packaging information
| Package | Pins SO-MOD (DWE) | 16 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 40 | TUBE |
Features for the AMC3302
- 3.3-V or 5-V single supply with integrated DC/DC converter
- ±50-mV input voltage range optimized for current measurement using shunt resistors
- Fixed gain: 41
- Low DC errors:
- Offset voltage: ±50 µV (max)
- Offset drift: ±0.5 µV/°C (max)
- Gain error: ±0.2% (max)
- Gain error drift: ±35 ppm/°C (max)
- Nonlinearity: ±0.03% (max)
- High CMTI: 95 kV/µs (min)
- System-level diagnostic features
- Meets CISPR-11 and CISPR-25 EMI standards
- Safety-related certifications:
- 6000-VPK reinforced isolation per DIN VDE V 0884-11
- 4250-VRMS isolation for 1 minute per UL1577
- Fully specified over the extended industrial temperature range: –40°C to +125°C
Description for the AMC3302
The AMC3302 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 AMC3302 is optimized for direct connection to a low-impedance shunt resistor or another 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 AMC3302 simplify system-level design and diagnostics.