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.
AMC0311S-Q1
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, TA
- Linear input voltage range: 0 to 2.25V
- High input impedance: 2.4GΩ (typical)
- Supply voltage range:
- High-side (VDD1): 3.0V to 5.5V
- Low-side (VDD2): 3.0V to 5.5V
- Fixed gain: 1V/V
- Single-ended output
- Low DC errors:
- Offset error: ±1mV (maximum)
- Offset drift: ±30µV/°C (maximum)
- Gain error: ±0.25% (maximum)
- Gain drift: ±50ppm/°C (maximum)
- Nonlinearity: ±0.08% (maximum)
- High CMTI: 150V/ns (minimum)
- Low EMI: Meets CISPR-11 and CISPR-25 standards
- Isolation ratings:
- AMC0211S-Q1: Basic isolation
- AMC0311S-Q1: Reinforced Isolation
- Safety-related certifications:
- DIN EN IEC 60747-17 (VDE 0884-17)
- UL1577
The AMC0x11S-Q1 is a precision, galvanically isolated amplifier with a 2.25V, high impedance input, fixed-gain, and single-ended output. The high-impedance input is optimized for connection to a high-impedance resistive divider or other voltage signal source with high output resistance.
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 AMC0x11S-Q1 outputs a single-ended signal proportional to the input voltage with a fixed gain of 1V/V. The output is designed to connect directly to the input of an ADC. The voltage applied to the REFIN pin sets the output voltage at 0V input.
The AMC0x11S-Q1 devices come in 8-pin, wide- and narrow-body SOIC packages, and are fully specified over the temperature range from –40°C to +125°C.
Technical documentation
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View all 5 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | AMC0x11S-Q1 Automotive, Precision, 2.25V Input, Basic and Reinforced Isolated Amplifiers With Fixed-Gain and Single-Ended Output datasheet (Rev. A) | PDF | HTML | 30 May 2025 |
| Application brief | High Voltage Measurement in HEV/EV Application | PDF | HTML | 16 Jun 2025 | |
| White paper | 透過隔離式電壓感測最大化電源轉換 與馬達控制效率 (Rev. A) | PDF | HTML | 16 Dec 2024 | |
| White paper | 절연 전압 감지를 통해 전력 변환 및 모터 제어 효율 극대화 (Rev. A) | PDF | HTML | 16 Dec 2024 | |
| White paper | Maximizing Power Conversion and Motor Control Efficiency With Isolated Voltage Sensing (Rev. A) | PDF | HTML | 10 Dec 2024 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
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
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 |
|---|---|---|
| SOIC (DWV) | 8 | Ultra Librarian |
Ordering & quality
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