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.
AMC0100R
- Linear input voltage range: ±250mV
- Supply voltage range:
- High-side (VDD1): 3.0V to 5.5V
- Low-side (VDD2): 3.0V to 5.5V
- Single-ended, ratiometric output
- Reference Input: 2.7V to 5.5V
- Low DC errors:
- Offset error: ±0.25mV (maximum)
- Offset drift: ±1µV/°C (maximum)
- Gain error: ±0.25% (maximum)
- Gain drift: ±35ppm/°C (maximum)
- Nonlinearity: 0.04% (maximum)
- High CMTI: 150V/ns (minimum)
- Low EMI: Meets CISPR-11 and CISPR-25 standards
- Functional Isolation:
- 200VRMS, 280VDC working voltage
- 570VRMS, 800VDC transient overvoltage (60s)
- Fully specified over the extended industrial temperature range: –40°C to +125°C
The AMC0100R is a precision, galvanically isolated amplifier with a ±250mV differential input, and single-ended, ratiometric output. The input is optimized for direct connection to a shunt resistor or other low-impedance signal source.
The isolation barrier separates parts of the system that operate on different common-mode voltage levels or noise sensitive circuitry from power stages. The isolation barrier supports a working voltage up to 200VRMS / 280VDC and transient over voltages up to 570VRMS / 800VDC (60s).
The AMC0100R outputs a single-ended signal proportional to the input voltage. The full-scale output is set by the voltage applied to the REFIN pin. The output of the AMC0100R is designed to connect directly to the input of an ADC. Connect REFIN to the same reference voltage as the ADC to match the dynamic input voltage range of the ADC.
The AMC0100R is available in a 8-pin, 0.65mm pitch VSON package and 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 | AMC0100R Precision, ±250mV Input, Functionally Isolated Amplifier With Single-Ended, Ratiometric Output datasheet | PDF | HTML | 17 Oct 2025 |
| Application note | System Benefits of Ratiometric Output Isolated Amplifiers | PDF | HTML | 04 Sep 2025 |
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
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 |
|---|---|---|
| VSON (DEN) | 8 | Ultra Librarian |
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