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.
AMC1301-Q1
Automotive Precision ±250mV-Input 3µs-Delay Reinforced Isolated Amplifier
Data sheet
AMC1301-Q1
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, T A
- Functional Safety-Capable
- ±250-mV input voltage range optimized for current measurements using shunt resistors
- Fixed gain: 8.2 V/V
- Low DC errors:
- Offset error: ±0.2 mV (max)
- Offset drift: ±3 µV/°C (max)
- Gain error: ±0.3% (max)
- Gain drift: ±50 ppm/°C (max)
- Nonlinearity: 0.03% (max)
- 3.3-V operation on high-side and low-side
- System-level diagnostic features
- Safety-related certifications:
- 7070-V PK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
- 5000-V RMS isolation for 1 minute per UL1577
The AMC1301-Q1 is a precision, isolated amplifier with an output separated from the input circuitry by an isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide reinforced isolation of up to 7070 V PEAK according to the DIN EN IEC 60747-17 (VDE 0884-17) and UL1577 standards, and supports a working voltage up to 1 kV RMS.
The isolation barrier separates parts of the system that operate on different common-mode voltage levels and protects the low-side from voltage levels that can cause electrical damage and are potentially harmful to an operator.
The input of the AMC1301-Q1 is optimized for direct connection to shunt resistors or other low voltage-level signal sources. The excellent DC accuracy and low temperature drift supports accurate current control in onboard chargers (OBC), DC/DC converters, frequency inverters, or other high-voltage applications. The integrated common-mode overvoltage and missing high-side supply voltage detection features of the AMC1301-Q1 simplify system-level design and diagnostics.
The AMC1301-Q1 is offered in a wide-body 8-pin SOIC package, is AEC-Q100 qualified for automotive applications, and supports the temperature range from –40°C to +125°C.
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Technical documentation
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Evaluation board
AMC1301EVM — AMC1301 Evaluation Module
The AMC1301EVM is an evaluation platform for the AMC1301, a 7kV reinforced isolation amplifier designed for use in current shunt measuring applications. The AMC1301EVM allows the user to explore all the features of the AMC1301 device.
User guide: PDF
Simulation model
AMC1301 TINA-TI Reference Design (Rev. B)
SBAM271B.TSC (121 KB) - TINA-TI Reference Design
Simulation model
AMC13xx TINA-TI SPICE Model for Isolated Voltage-Measurement Circuit
SBAM448.TSC (43 KB) - TINA-TI Spice Model
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.
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOIC (DWV) | 8 | Ultra Librarian |
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