AEC-Q100, 2.7-V to 120-V, 1.1-Mhz current sense amplifier in small (SC-70) package
Product details
Parameters
Package | Pins | Size
Features
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40 °C to +125 °C, TA
- Functional Safety-Capable
- Wide common-mode voltage:
- Operational voltage: 2.7 V to 120 V
- Survival voltage: −20 V to +122 V
- Excellent CMRR:
- 120-dB DC (minimum)
- 85-dB AC at 50 kHz
- Accuracy
- Gain:
- Gain error: ±0.5% (maximum)
- Gain drift: ±20 ppm/°C (maximum)
- Offset:
- Offset voltage: ±150 µV (maximum)
- Offset drift: ±1 µV/°C (maximum)
- Gain:
- Available gains:
- INA280A1-Q1: 20 V/V
- INA280A2-Q1: 50 V/V
- INA280A3-Q1: 100 V/V
- INA280A4-Q1: 200 V/V
- INA280A5-Q1: 500 V/V
- High bandwidth: 1.1 MHz
- Slew rate: 2 V/µs
- Quiescent current: 370 µA
All trademarks are the property of their respective owners.
Description
The INA280-Q1 is a current sense amplifier that can measure voltage drops across shunt resistors over a wide common-mode range from 2.7 V to 120 V. It is in a highly space-efficient SC-70 package with a PCB footprint of only 2.0 mm × 2.1 mm. The current measurement accuracy is achieved thanks to the combination of an ultra-low offset voltage of ±150 µV (maximum), a small gain error of ±0.5% (maximum), and a high DC CMRR of 140 dB (typical). The INA280-Q1 is not only designed for DC current measurement, but also for high-speed applications (like fast overcurrent protection, for example) with a high bandwidth of 1.1 MHz (at gain of 20 V/V) and an 85-dB AC CMRR (at 50 kHz).
The INA280-Q1 operates from a single 2.7-V to 20-V supply and draws a 370-µA supply current (typical). The INA280-Q1 available with five gain options: 20 V/V, 50 V/V, 100 V/V, 200 V/V, and 500 V/V. The low offset and drift of the INA280-Q1 enables accurate current sensing over the extended operating temperature range of −40 °C to +125 °C.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | INA280-Q1AEC-Q100, 2.7-V to 120-V, 1.1-MHz, High Precision Current Sense Amplifier in Small (SC-70) Package datasheet | Nov. 20, 2020 |
Application note | High-Side Motor Current Monitoring for Over-Current Protection (Rev. B) | Feb. 23, 2021 | |
Technical articles | How current-sense amplifiers monitor satellite health | Feb. 08, 2021 | |
Application note | Current Sensing in an H-Bridge (Rev. B) | Feb. 05, 2021 | |
Application note | INA2x0-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | Nov. 17, 2020 | |
Technical articles | A key to accurate system thermal management: monitoring both current flow and temperature | Oct. 04, 2018 | |
Technical articles | System trade-offs for high- and low-side current measurements | Jun. 01, 2017 | |
Technical articles | Why should you care about overcurrent protection in your system? | Jun. 16, 2016 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The INA280 evaluation module (EVM) is a small module with five completely independent boards that can be broken off by the designer. Five schematically identical boards are available for each of the five gain variations of the INA280 with inputs up to 120-V common-mode and 5-A (on-board shunt) input (...)
Features
- Easy to test INA280 with differential voltage or shunt resistor
- Pads and sockets allow quick and easy implementation of SMD filtering
- Breakable panels enable designers to experiment and test with all gain variants
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
Additionally, an external protection circuit is implemented to provide surge and fast-transient protection and demonstrate the different immunity levels to (...)
Design files
-
download TIDA-00302 BOM.pdf (52KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SC70 (DCK) | 5 | 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
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.