INA271-HT
High temp, -16 to 80V, split-stage current sense amplifier w/ in-line filter capability
INA271-HT
- 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
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
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | Voltage Output, Unidirectional Measurement Current-Shunt Monitor datasheet (Rev. D) | 27 Aug 2013 | |
* | Radiation & reliability report | INA271SHKJ Reliability Report | 07 May 2012 | |
* | Radiation & reliability report | INA271SHKQ Reliability Report | 07 May 2012 | |
Application note | Using a PCB Copper Trace as a Current-Sense Shunt Resistor | PDF | HTML | 25 Jan 2022 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
CIRCUIT060035 — Bidirectional current sensing with a window comparator circuit
CIRCUIT060037 — Precision over-current latch circuit
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TINA-TI — SPICE-based analog simulation program
TIDA-00302 — Current Shunt Monitor with Transient Robustness Reference Design
Additionally, an external protection circuit is implemented to provide surge and fast-transient protection and demonstrate the different immunity levels to (...)
Package | Pins | Download |
---|---|---|
CFP (HKJ) | 8 | View options |
CFP (HKQ) | 8 | View options |
DIESALE (KGD) | — |
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