Automotive ±250-mV input, precision reinforced isolated amplifier with integrated DC/DC converter
Product details
Parameters
Package | Pins | Size
Features
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to 125°C, TA
- 3.3-V or 5-V single supply with integrated DC/DC converter
- ±250-mV linear input voltage range optimized for current measurement using shunt resistors
- Fixed gain: 8.2
- Low DC errors:
- Input offset voltage: ±0.15 mV (max)
- Input offset drift: ±1 µV/°C (max)
- Gain error: ±0.2% (max)
- Gain error drift: ±40 ppm/°C (max)
- Nonlinearity: ±0.04% (max)
- High CMTI: 85 kV/µs (min)
- System-level diagnostic features
- Safety-related certifications:
- 6000-VPK reinforced isolation per DIN VDE V 0884-11
- 4250-VRMS isolation for 1 minute per UL1577
- Meets CISPR-11 and CISPR-25 EMI standards
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Description
The AMC3301-Q1 is a precision, isolated amplifier with a fully integrated, isolated DC/DC converter that allows single-supply operation from the low-side of the device. The reinforced capacitive isolation barrier is certified according to VDE V 0884-11 and UL1577 and separates sections of the system that operate on different common-mode voltage levels and protects low-voltage domains from damage.
The input of the AMC3301-Q1 is optimized for direct connection to shunt resistors or other low voltage-level signal sources. The integrated isolated DC/DC converter allows flexible placement of the shunt and the AMC3301-Q1, and makes the device a unique solution for space-constrained applications.
The excellent performance of the device supports accurate current monitoring and control, which is an important feature to achieve low torque ripple in motor control applications. The integrated DC/DC converter fault-detection and diagnostic output pin of the AMC3301-Q1 simplify system-level design and diagnostics.
The AMC3301-Q1 is specified over the industrial temperature range of –40°C to +125°C.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | AMC3301-Q1 Precision, ±250-mV Input, Reinforced Isolated Amplifier With Integrated DC/DC Converter datasheet | Jul. 30, 2020 |
Technical articles | Simplify your isolated current and voltage sensing designs with single-supply isolated amplifiers and ADCs | Oct. 26, 2020 | |
User guide | AMC3301, AMC3302, and AMC3330 Evaluation Module User's Guide (Rev. B) | Sep. 03, 2020 | |
Application note | Isolated voltage-measurement circuit with ±250-mV input and differential output | Jun. 28, 2020 | |
Technical articles | Isolation 101: How to find the right isolation solution for your application | Feb. 11, 2020 | |
Technical articles | Chief Technology Officer Ahmad Bahai discusses isolation in a world of collaboration | Oct. 02, 2018 | |
Technical articles | Why capacitive isolation: a vital building block for sensors in smart cities | Jan. 16, 2018 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The AMC3301 evaluation module (EVM) is a platform for evaluating the AMC3301 device, a precision isolated amplifier with an integrated DC/DC converter, which powers the high side of the amplifier. AMC3301 is a 7-kV reinforced isolated amplifier designed for use in current shunt measuring (...)
Features
- Integrated DC/DC converter for high-side power
- Reinforced isolated amplifier: 7-kV peak, 10-kV surge
- Fixed gain of 8.2
- ±250-mV input range
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SOIC (DWE) | 16 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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