AMC3306M25
±250-mV input, precision current sensing reinforced isolated modulator with integrated DC/DC
AMC3306M25
- 3.3-V or 5-V single supply with integrated DC/DC converter
- ±250-mV input voltage range optimized for current measurement using shunt resistors
- Low DC errors:
- Offset error: ±50 µV (max)
- Offset drift: ±1 µV/°C (max)
- Gain error: ±0.2% (max)
- Gain drift: ±35 ppm/°C (max)
- High CMTI: 75 kV/µs (min)
- System-level diagnostic features
- Low EMI: Meets CISPR-11 and CISPR-25 standards
- Safety-related certifications:
- 6000-VPEAK 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
The AMC3306M25 is a precision, isolated delta-sigma (ΔΣ) modulator, 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 AMC3306M25 is optimized for direct connection to a low-impedance shunt resistor or other, low-impedance voltage sources with low signal levels. The excellent DC accuracy and low temperature drift support accurate current measurements over the extended industrial temperature range from –40°C to +125°C.
By using a digital filter (such as a sinc3 filter) 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.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
AMC3306EVM — AMC3306 precision reinforced isolated modulator with integrated DC/DC converter evaluation module
The AMC3306 evaluation module (EVM) is a platform for evaluating the AMC3306 product, a precision isolated amplifier with an integrated DC/DC converter that powers the high side of the amplifier. AMC3306 is a 7-kV reinforced isolation modulator designed for use in current shunt measuring (...)
SBAR010 — Delta Sigma Modulator Filter Calculator
Supported products & hardware
Products
Isolated ADCs
Precision ADCs
Hardware development
Evaluation board
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
SO-MOD (DWE) | 16 | Ultra Librarian |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
- Fab location
- Assembly location
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.