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.
AMC0303M0510
- Linear input voltage range: ±50mV
- Supply voltage range:
- High-side (AVDD): 3.0V to 5.5V
- Low-side (DVDD): 2.7V to 5.5V
- Low DC errors:
- Offset error: ±100µV (maximum)
- Offset drift: ±1µV/°C (maximum)
- Gain error: ±0.2% (maximum)
- Gain drift: ±30ppm/°C (maximum)
- High CMTI: 150V/ns (minimum)
- Missing high-side supply detection
- Low EMI: Meets CISPR-11 and CISPR-25 standards
- Isolation ratings:
- AMC0203M0510: Basic isolation
- AMC0303M0510: Reinforced Isolation
- Safety-related certifications:
- DIN EN IEC 60747-17 (VDE 0884-17)
- UL 1577
- Fully specified over the extended industrial temperature range: –40°C to +125°C
The AMC0x03M0510 is a precision, galvanically isolated delta-sigma (ΔΣ) modulator with a ±50mV input and internal clock. The input is optimized for connection to low-impedance shunt resistors commonly used for current-sensing applications.
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. This barrier is certified to provide reinforced isolation up to 5kVRMS (DWV package) and basic isolation up to 3kVRMS (D package) (60s).
The output bitstream of the AMC0x03M0510 is synchronized to the internally generated 10MHz clock. Combined with a sinc3, OSR 256 filter, the device achieves 12.2 effective bits of resolution or 78dB of dynamic range, at a 39kSPS sample rate.
The AMC0x03M0510 comes in 8-pin, wide- and narrow-body SOIC packages. The device is fully specified over the temperature range from –40°C to +125°C.
Technical documentation
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View all 2 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | AMC0x03M0510 Precision, ±50mV Input Isolated Delta-Sigma Modulators With Internal Clock datasheet | PDF | HTML | 01 Dec 2025 |
| Application note | Clock Edge Delay Compensation With Isolated Modulators Digital Interface to MCUs (Rev. A) | PDF | HTML | 12 Jan 2024 |
Design & development
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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 |
|---|---|---|
| — (—) | — |
Ordering & quality
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