-16 to 80V, split-stage current sense amplifier w/ in-line filter capability
Product details
Parameters
Package | Pins | Size
Features
- Wide Common-Mode Range: –16 V to +80 V
- CMRR: 120 dB
- Accuracy:
±0.5-mV Offset (typ)
±0.2% Gain Error (typ)
2.5 µV/°C Offset Drift (typ)
50 ppm/°C Gain Drift (max) - Bandwidth: Up to 130 kHz
- Two Gain Options Available:
14 V/V (INA270)
20 V/V (INA271) - Quiescent Current: 700 µA (typ)
- Power Supply: +2.7 V to +18 V
- Provision for Filtering
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Description
The INA270 and INA271 family of voltage-output, current-sense amplifiers can sense drops across shunt resistors at common-mode voltages from –16 V to +80 V, independent of the supply voltage. The INA270 and INA271 pinouts readily enable filtering.
The INA270 and INA271 are available with two gain options: 14 V/V and 20 V/V. The 130-kHz bandwidth simplifies use in current-control loops.
The INA270 and INA271 operate from a single +2.7-V to +18-V supply, drawing 700 µA (typical) of supply current. The devices are specified over the extended operating temperature range of –40°C to +125°C and are offered in an SOIC-8 package.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | INA27x Voltage Output, Unidirectional Measurement Current-Shunt Monitor datasheet (Rev. E) | Jan. 25, 2018 |
Technical articles | How current-sense amplifiers monitor satellite health | Feb. 08, 2021 | |
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.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 |
---|---|---|
SOIC (D) | 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
Support & training
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