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.
AMC1411
2-V input, precision voltage sensing reinforced isolated amplifier with high CMTI
Data sheet
AMC1411
- 2-V, high-impedance input voltage range optimized for isolated voltage measurements
- Fixed gain: 1.0 V/V
- Low DC errors:
- Offset error ±1.5 mV (max)
- Offset drift: ±10 µV/°C (max)
- Gain error: ±0.2% (max)
- Gain drift: ±30 ppm/°C (max)
- Nonlinearity 0.04% (max)
- 3.3-V or 5-V operation on high-side and low-side
- Missing high-side supply detection feature
- High CMTI: 100 kV/µs (min)
- ≥15.7-mm creepage, stretched SOIC package
- Reinforced isolation:
- 10600-VPK reinforced isolation per DIN VDE V 0884-11: 2017-01
- 7500-VRMS isolation for 1 minute per UL1577
- Fully specified over the extended industrial temperature range: –40°C to +125°C
The AMC1411 is a precision, isolated amplifier with an output separated from the input circuitry by a capacitive isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide reinforced galvanic isolation of up to 7.5 kVRMS according to VDE V 0884-11 and UL1577 and supports a working voltage of up to 1600 VRMS.
The isolation barrier separates parts of the system that operate on different common-mode voltage levels and protects the low-voltage side from voltages that can cause electrical damage or be harmful to an operator.
The high-impedance input of the AMC1411 is optimized for connection to high-impedance resistive dividers or other high-impedance voltage signal source. The excellent DC accuracy and low temperature drift support accurate voltage sensing in DC/DC converters, solar or wind turbine inverters, AC motor drives, or other applications that must operate at high voltages, high altitudes, or in environments with high pollution degrees.
The AMC1411 is specified over the extended industrial temperature range from –40°C to +125°C and supports operation down to –55°C.
Technical documentation
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Evaluation board
AMC1411EVM — AMC1411 evaluation module for 2-V-input reinforced isolated amplifier for voltage sensing
The AMC1411 evaluation module (EVM) is a platform for evaluating the AMC1411 precision isolated amplifier. AMC1411 is a 10.5-kV amplifier designed for use in unipolar voltage-measuring applications. A complete circuit description, including the schematic diagram and bill of materials (BOM), is (...)
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 (DWL) | 8 | Ultra Librarian |
Ordering & quality
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