High temp, -16 to 80V, split-stage current sense amplifier w/ in-line filter capability
Product details
Parameters
Package | Pins | Size
Features
- Wide Common-Mode Range: –16V to +80V
- CMRR: 78dB
- Accuracy:
±10mV Offset (max)
±7.5% Gain Error (max)
100µV/°C Offset Drift (max) - Bandwidth: Up to 130kHz
- Transfer Function: 20V/V
- Quiescent Current: 1600µA (max)
- Power Supply: +2.7V to +18V
- Provision for Filtering
- APPLICATIONS
- Down-Hole Drilling
- High Temperature Environments
- Supports Extreme Temperature Applications
- Controlled Baseline
- One Assembly/Test Site
- One Fabrication Site
- Available in Extreme (–55°C/210°C)
Temperature Range(1) - Extended Product Life Cycle
- Extended Product-Change Notification
- Product Traceability
- Texas Instruments high temperature products utilize
highly optimized silicon (die) solutions with design
and process enhancements to maximize performance over
extended temperatures.
(1) Custom temperature ranges
Description
The INA271 is a current-shunt monitor with voltage output and can sense drops across current shunts at common-mode voltages from –16V to +80V, independent of the supply voltage. The INA271 pinouts readily enable filtering.
The INA271 is available with a 20V/V output voltage scale. The 130kHz bandwidth simplifies use in current-control loops.
The INA271 operates from a single +2.7V to +18V supply, drawing a maximum of 1600µA of supply current. This device is specified over the extended operating temperature range of –55°C to +210°C.
Technical documentation
= Top documentation for this product selected by TI
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | Voltage Output, Unidirectional Measurement Current-Shunt Monitor datasheet (Rev. D) | Aug. 27, 2013 |
| * | Radiation & reliability report | INA271SHKJ Reliability Report | May 07, 2012 |
| * | Radiation & reliability report | INA271SHKQ Reliability Report | May 07, 2012 |
| 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
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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
- (...)
TINA-TI — TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
SBOR020A.ZIP (525 KB)
Reference designs
TIDA-00302 — This high-side current shunt monitor is used to measure the voltage developed across a current-sensing resistor when current passes through it.
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 |
|---|---|---|
| (KGD) | 0 | View options |
| CFP (HKJ) | 8 | View options |
| CFP (HKQ) | 8 | View options |
Ordering & quality
Information included:
- 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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