Calculation tool
Data sheet
AMC1202
- ±50-mV input voltage range optimized for current measurements using shunt resistors
- Fixed gain: 41
- Low DC errors:
- Offset error: ±50 µV (max)
- Offset drift: ±0.8 µV/°C (max)
- Gain error: ±0.2% (max)
- Gain drift: ±35 ppm/°C (max)
- Nonlinearity: 0.03% (max)
- 3.3-V or 5-V operation on high-side and low-side
- Fail-safe output
- High CMTI : 100 kV/µs (min)
- Low EMI, meets CISPR-11 and CISPR-25 standards
- Safety-related certifications:
- 4250-VPK basic isolation per DIN VDE V 0884-11: 2017-01
- 3000-VRMS isolation for 1 minute per UL1577
The AMC1202 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 basic galvanic isolation of up to 3 kVRMS according to VDE V 0884-11 and UL1577, and supports a working voltage of up to 1 kVRMS.
The isolation barrier separates parts of the system that operate on different common-mode voltage levels and protects the low-voltage side from hazardous voltages and damage.
The input of the AMC1202 is optimized for direct connection to a low-impedance shunt resistor or other low-impedance voltage source with low signal levels. The excellent DC accuracy and low temperature drift supports accurate current control in PFC stages, DC/DC converters, traction inverters, and OBCs over the full automotive temperature range from –40°C to +125°C.
The integrated missing shunt and missing high-side supply detection features simplify system-level design and diagnostics.
Technical documentation
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View all 9 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | AMC1202 Precision, ±50-mV Input, Basic Isolated Amplifier datasheet | PDF | HTML | 17 May 2021 |
| Certificate | VDE Certificate for Basic Isolation for DIN EN IEC 60747-17 (Rev. W) | 31 Jan 2024 | ||
| Application brief | Shunt Resistor Selection for Isolated Data Converters | PDF | HTML | 04 May 2023 | |
| Circuit design | Isolated Current-Sensing Circuit With Front-End Gain Stage | PDF | HTML | 24 Apr 2023 | |
| Application note | Design Considerations for Current Sensing in DC EV Charging Applications | PDF | HTML | 13 Dec 2022 | |
| Certificate | UL Certificate of Compliance File E181974 Vol 4 Sec 1 (Rev. A) | 05 Aug 2022 | ||
| Circuit design | Isolated Current-Sensing Circuit With ±50-mV Input and Single-Ended Output | PDF | HTML | 28 Jul 2022 | |
| Circuit design | Isolated Current-Sensing Circuit With ±50-mV Input and Differential Output | PDF | HTML | 30 Jun 2022 | |
| EVM User's guide | AMC130x Evaluation Module User's Guide (Rev. C) | 28 Jun 2018 |
Design & development
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Evaluation board
AMC1302EVM — AMC1302 evaluation module for ±50-mV-input, high-precision, reinforced isolated amplifier
The AMC1302 evaluation module (EVM) is a platform for evaluating the AMC1302, which is a 7-kV reinforced isolation amplifier designed for use in current shunt measuring applications. AMC1302EVM allows the user to explore all the features of the AMC1302 device.
User guide: PDF
Calculation tool
SBAR020 — Isolated Amplifier Current Sensing Excel Calculator
Supported products & hardware
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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 (...)
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| SOIC (DWV) | 8 | View options |
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