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AMC1400-Q1
Automotive, ±250-mV input, precision, voltage-sensing, reinforced isolated amplifier with high CMTI
Data sheet
AMC1400-Q1
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, TA
- 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: ±0.9 µV/°C (max)
- Gain error: ±0.3% (max)
- Gain drift: ±30 ppm/°C (max)
- Nonlinearity: 0.03% (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)
- Low EMI, meets CISPR-11 and CISPR-25 standards
- Safety-related certifications:
- 10600-VPK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
- 7500-VRMS isolation for 1 minute per UL1577
The AMC1400-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 galvanic isolation of up to 7.5 kVRMS according to DIN EN IEC 60747-17 (VDE 0884-17) and UL1577, and supports a working voltage of up to 2 kVRMS.
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 AMC1400-Q1 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 power factor correction (PFC) stages, DC/DC converters, traction inverters, and other applications that must operate at high common-mode voltages, high altitudes, or in environments with high pollution degrees.
The AMC1400-Q1 is offered in a stretched 8-pin SOIC package and 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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View all 3 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | AMC1400-Q1 Automotive, Precision, ±250-mV Input, Reinforced Isolated Amplifierin a 15-mm Stretched SOIC Package datasheet | PDF | HTML | 25 Jul 2022 |
| Application brief | Shunt Resistor Selection for Isolated Data Converters | PDF | HTML | 04 May 2023 | |
| Application brief | TI's First Isolated Amplifiers With Ultra-Wide Creepage and Clearance | PDF | HTML | 13 Aug 2021 |
Design & development
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Evaluation board
AMC1400EVM — AMC1400 evaluation module for ±250-mV input, precision, voltage-sensing isolated amplifier
The AMC1400 evaluation module (EVM) is an platform for developing the AMC1400, which is a precision isolated amplifier with a ±250-mV input range and an output separated from the input circuitry by a silicon dioxide (SiO2) barrier that is highly resistant to magnetic interference. AMC1400 10600-VPK (...)
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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 | Download |
|---|---|---|
| SOIC (DWL) | 8 | View options |
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