Automotive ±50mV-Input High-Precision Reinforced Isolated Amplifier 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
- ±50-mV Input Voltage Range for Low Dissipation, Shunt-Resistor-Based Current Measurement
- Fixed Gain With Low Drift: 41 ± 0.3%, ±50 ppm/°C
- Low Input Offset and Drift: ±100 µV, ±0.8 µV/°C
- Low Nonlinearity and Drift: ±0.03%, ±1 ppm/°C
- Very Low Isolated High-Side Power Dissipation When Operated From a 3.3-V Supply
- System-Level Diagnostic Features
- Safety-Related Certifications:
- 7071-VPK Reinforced Isolation per DIN V VDE V 0884-11 (VDE V 0884-11): 2017-01
- 5000-VRMS Isolation for 1 Minute per UL1577
- CAN/CSA No. 5A-Component Acceptance Service Notice
- High CMTI: 140 kV/µs (typ), 70 kV/µs (min)
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Description
The AMC1302-Q1 is a precision isolated amplifier with a capacitive isolation barrier that has high immunity to magnetic interference. This barrier provides reinforced isolation of 5 kVRMS (maximum) with a very long lifetime and low power dissipation. When used with isolated power supplies, this device isolates components that operate on different common-mode voltage levels. Furthermore, the AMC1302-Q1 also protects lower-voltage devices from damage.
The input of the AMC1302-Q1 is optimized for direct connection to shunt resistors or other low voltage-level signal sources. The ±50-mV input voltage range allows significant reduction of the power dissipation through the shunt. Additionally, the low high-side supply current and voltage of the AMC1302-Q1 allow use of low-cost isolated power-supply solutions. The performance of the device supports accurate current control resulting in system-level power savings and in low torque ripple that is particularly important in motor control applications. The integrated input common-mode overvoltage and missing high-side supply voltage detection features of the AMC1302-Q1 simplify system-level diagnostics.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | AMC1302-Q1 Precision, Reinforced Isolated Amplifier With High CMTI, Input Voltage Range of ±50 mV, and High Bandwidth of 280 kHz datasheet | Oct. 01, 2018 |
Application note | Isolated voltage-measurement circuit with ±250-mV input and differential output | Jun. 28, 2020 | |
White paper | Comparing shunt- and Hall-based current-sensing solutions in onboard chargers an (Rev. A) | Mar. 19, 2019 | |
Technical article | Chief Technology Officer Ahmad Bahai discusses isolation in a world of collaboration | Oct. 02, 2018 | |
Technical article | Power trip: new integrated device sends power and data over isolation barrier | Apr. 04, 2017 | |
White paper | High Voltage Isolation Quality and Reliability for AMC130x | Jun. 21, 2016 | |
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 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
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.
Features
- Reinforced isolation amplifier: 7-kV peak, 10-kV surge
- Fixed gain of 41
- ±50-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
- (...)
Reference designs
Design files
-
download PMP21553 Assembly Drawing.pdf (110KB) -
download PMP21553 PCB.pdf (475KB) -
download PMP21553 Gerber.zip (1804KB) -
download PMP21561 Assembly Drawing.pdf (110KB) -
download PMP21561 PCB.pdf (472KB) -
download PMP21561 Gerber.zip (1795KB) -
download PMP21553 BOM (Rev. A).pdf (94KB) -
download PMP21561 BOM (Rev. A).pdf (94KB) -
download PMP21561 CAD Files (Rev. A).zip (592KB) -
download PMP21495 BOM.pdf (109KB) -
download PMP21495 Assembly Drawing.pdf (898KB) -
download PMP21495 PCB.pdf (2843KB) -
download PMP21495 CAD Files.zip (3137KB) -
download PMP21495 Gerber.zip (3381KB) -
download PMP21553 CAD Files (Rev. B).zip (592KB)
Design files
-
download PMP21495 BOM.pdf (109KB) -
download PMP21495 Assembly Drawing.pdf (898KB) -
download PMP21495 PCB.pdf (2843KB) -
download PMP21495 CAD Files.zip (3137KB) -
download PMP21495 Gerber.zip (3381KB)
Design files
-
download PMP21999 BOM Files.zip (396KB) -
download PMP21999 Assembly Files.zip (1473KB) -
download PMP21999 Layer Plots.zip (2169KB) -
download PMP21999 CAD Files.zip (8523KB) -
download PMP21999 Gerber.zip (8676KB)
Design files
-
download TIDA-020018 BOM.pdf (37KB) -
download TIDA-020018 Assembly Drawing.pdf (105KB) -
download TIDA-020018 PCB.pdf (458KB) -
download TIDA-020018 CAD Files.zip (585KB) -
download TIDA-020018 Gerber.zip (698KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SOIC (DWV) | 8 | 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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