Calculation tool
SBAR013 — Isolated Amplifier Voltage Sensing Excel Calculator
This calculator provides estimates of the errors associated with using isolation amplifier devices in a voltage sensing configuration.
AMC0386
- Integrated, high-voltage resistive divider for direct AC or DC voltage sensing without external resistors
- Supply voltage range:
- High-side (AVDD): 3.0V to 5.5V
- Low-side (DVDD): 2.7V to 5.5V
- Low DC errors:
- Offset error: ±0.9mV (maximum)
- Offset drift: ±7µV/°C (maximum)
- Attenuation error: ±0.25% (maximum)
- Attenuation drift: ±30ppm/°C (maximum)
- High CMTI: 150V/ns (minimum)
- Missing high-side supply detection
- Low EMI: Meets CISPR-11 and CISPR-25 limits
- Available input options:
- AMC0386M06: ±600V, 10MΩ
- AMC0386M10: ±1000V, 12.5MΩ
- Safety-related certifications:
- 7000VPK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
- 5000VRMS isolation for 1 minute per UL1577
- Fully specified over the extended industrial temperature range: –40°C to +125°C
The AMC0386 is a precision, galvanically isolated delta-sigma (ΔΣ) modulator with a high-voltage, high impedance input, and external clock. The input is designed to connect directly to a high-voltage signal source.
The isolation barrier separates parts of the system that operate on different common-mode voltage levels. The isolation barrier is highly resistant to magnetic interference and is certified to provide reinforced isolation of up to 5kVRMS (60s).
The output bitstream of the AMC0386 is synchronized to the internally generated 10MHz clock. Combined with a sinc3, OSR 256 filter, the device achieves 14.8 effective bits of resolution or 89dB of dynamic range, at a 39kSPS sample rate.
With the integrated resistive divider, excellent DC accuracy, low temperature drift and high stability, the AMC0386 achieves better than 1% accuracy over lifetime and temperature without system-level calibration.
The AMC0386 is available in a 15-pin, 0.65mm pitch SSOP package and is fully specified over the temperature range from –40°C to +125°C.
Technical documentation
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View all 6 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | AMC0386 Precision, High-Voltage Input, Reinforced Isolated Delta-Sigma Modulator With External Clock datasheet (Rev. A) | PDF | HTML | 20 Oct 2025 |
| Application note | AMC0386 Output Histograms in HEV/EV Traction Inverter Voltage Sensing Application | PDF | HTML | 05 Nov 2025 | |
| E-book | Ein Leitfaden für Techniker zu isolierten Signalkettenlösungen | PDF | HTML | 23 Jan 2025 | |
| E-book | 절연 신호 체인 솔루션에 관한 엔지니어 가이드 | PDF | HTML | 23 Jan 2025 | |
| E-book | An Engineer's Guide to Isolated Signal Chain Solutions | PDF | HTML | 23 May 2024 | |
| Application note | Clock Edge Delay Compensation With Isolated Modulators Digital Interface to MCUs (Rev. A) | PDF | HTML | 12 Jan 2024 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
AMC038XEVM — AMC038x evaluation module
The AMC038x evaluation module (EVM), in conjunction with one of the AMC038x devices, demonstrates a high-precision, high-voltage sensing design. The evaluation module is capable of measuring up to 1600V input voltages with no external voltage dividor resistors needed. The design also includes a (...)
Evaluation board
DIYAMC-0-EVM — Universal do-it-yourself (DIY) isolated amplifier and modulator evaluation module
The DIYAMC-0-EVM is a break-apart evaluation module (EVM) with twenty configurations in a five-by-four grid layout. For isolated-amplifiers, the three output options include differential output, single-ended output with fixed gain and single-ended output with ratiometric gain. For isolated (...)
Calculation tool
SBAR020 — Isolated Amplifier Current Sensing Excel Calculator
This calculator provides estimates of the errors associated with using isolation amplifier devices in a current sensing configuration.
Supported products & hardware
Products
Isolated amplifiers
Isolated ADCs
Precision ADCs
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SSOP (DFX) | 15 | Ultra Librarian |
Ordering & quality
Information included:
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Information included:
- Fab location
- Assembly location
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Support & training
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