Automotive ±250-mV input, reinforced isolated amplifier with high CMTI for current sensing
Product details
Parameters
Package | Pins | Size
Features
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to 125°C, TA
- ±250-mV input voltage range optimized for current measurements using shunt resistors
- Fixed gain: 8.2
- 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
- Failsafe output
- High CMTI : 100 kV/µs (min)
- Low EMI, meets CISPR-11 and CISPR-25 standards
- Safety-related certifications:
- 7071-VPK reinforced isolation per DIN VDE V 0884-11: 2017-01
- 5000-VRMS isolation for 1 minute per UL1577
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Description
The AMC1300B-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 5 kVRMS according to VDE V 0884-11 and UL1577, and supports a working voltage of up to 1.5 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 AMC1300B-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 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
Type | Title | Date | |
---|---|---|---|
* | Datasheet | AMC1300B-Q1 Precision, ±250-mV Input, Reinforced Isolated Amplifier datasheet (Rev. A) | Jan. 12, 2021 |
White paper | Best in Class Radiated Emissions EMI Perf. with AMC1300B-Q1 Isolated Amplifier | Jun. 29, 2020 | |
Application note | Isolated voltage-measurement circuit with ±250-mV input and differential output | Jun. 28, 2020 | |
User guide | AMC130x Evaluation Module User's Guide (Rev. C) | Jun. 28, 2018 | |
Technical article | Get cerTIfied, not certi-FRIED! Electromagnetic compatibility testing explained (Part 4) | Feb. 06, 2015 | |
Technical article | Using delta-sigma modulators for isolated high-voltage measurements | Jan. 09, 2015 | |
Technical article | Part III: Get CerTIfied, not certi-FRIED! Electromagnetic compatibility testing explained | Dec. 02, 2014 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The AMC1300 evaluation module (EVM) is a platform for evaluating the AMC1300, which is a 7-kV reinforced isolation amplifier designed for use in current shunt measuring applications. AMC1300EVM allows the user to explore all the features of the AMC1300.
Features
- Reinforced isolation amplifier: 7-kV peak, 10-kV surge
- Fixed gain of 8.2
- ±250-mV input range
- Low gain error and drift
- Extended industrial temperature 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 (DWV) | 8 | View options |
Ordering & quality
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- 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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