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.
AMC0380D-Q1
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, TA
- Integrated, high-voltage resistive divider for direct AC voltage sensing without external resistors
- Differential output
- Supply voltage range:
- High-side (VDD1): 3.0V to 5.5V
- Low-side (VDD2): 3.0V to 5.5V
- Low DC errors:
- Offset error: ±0.8mV (maximum)
- Offset drift: ±10µV/°C (maximum)
- Attenuation error: ±0.25% (maximum)
- Attenuation drift: ±40ppm/°C (maximum)
- Nonlinearity: 0.025% (maximum)
- High CMTI: 150V/ns (minimum)
- Low EMI: Meets CISPR-11 and CISPR-25 limits
- Available input options:
- AMC0380D04-Q1: ±400V, 8.3MΩ
- AMC0380D06-Q1: ±600V, 10MΩ
- Safety-related certifications:
- 7000VPK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
- 5000VRMS isolation for 1 minute per UL 1577
The AMC0380D-Q1 is a precision, galvanically isolated amplifier with a high-voltage AC, high impedance input, and fixed-gain differential output. 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 up to 5kVRMS (60s).
The AMC0380D-Q1 outputs a differential signal proportional to the input voltage. The differential output is insensitive to ground shifts and enables routing the output signal over long distances.
The AMC0380D-Q1 is available in two linear input voltage ranges: ±400 and ±600V. With an integrated precision resistive divider, the AMC0380D-Q1 achieves better than 1% accuracy over the full temperature range, including lifetime drift.
The AMC0380D-Q1 is available in a 15-pin, 0.65mm pitch SSOP package. The device is fully specified over the temperature range from –40°C to +125°C.
Technical documentation
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View all 4 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | AMC0380D-Q1 Automotive, Precision, High-Voltage AC Input, Reinforced Isolated Amplifier With Fixed-Gain Differential Output datasheet (Rev. B) | PDF | HTML | 19 Nov 2025 |
| Application note | Isolated Converters CISPR25 Radiated Emissions | PDF | HTML | 13 Oct 2025 | |
| Application note | Pairing Isolated Amplifiers With SAR AD Converters | PDF | HTML | 24 Sep 2025 | |
| Application note | Increased Accuracy and Performance with Integrated High Voltage Resistor Isolated Amplifiers and Modulators (Rev. A) | PDF | HTML | 02 Dec 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 (...)
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
Simulation tool
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SSOP (DFX) | 15 | Ultra Librarian |
Ordering & quality
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