±50-mV input, precision reinforced isolated amplifier with integrated DC/DC converter
Product details
Parameters
Package | Pins | Size
Features
- 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: 85 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
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Description
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.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The AMC3302 evaluation module (EVM) is a platform for evaluating the AMC3302 product, a precision isolated amplifier with an integrated DC/DC converter, which powers the high side of the amplifier. AMC3302 is a 7-kV reinforced isolated amplifier designed for use in current shunt measuring (...)
Features
- Integrated DC/DC converter for high-side power
- Reinforced isolated amplifier: 7-kV peak, 10-kV surge
- Fixed gain of 41
- ±50-mV input range
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Reference designs
Design files
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download TIDA-010210 BOM Files.zip (1189KB) -
download TIDA-010210 Assembly Files.zip (1511KB) -
download TIDA-010210 Layer Plots.zip (3325KB) -
download TIDA-010210 CAD Files.zip (9755KB) -
download TIDA-010210 Gerber.zip (8672KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SOIC (DWE) | 16 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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