INA271-HT Datasheet, PDF (1/18 Pages) Texas Instruments – VOLTAGE OUTPUT, UNIDIRECTIONAL MEASUREMENT CURRENT-SHUNT MONITOR

INA271-HT
www.ti.com
SBOS521D – SEPTEMBER 2010 – REVISED AUGUST 2013
VOLTAGE OUTPUT, UNIDIRECTIONAL MEASUREMENT CURRENT-SHUNT MONITOR
Check for Samples: INA271-HT
FEATURES
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• 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 available
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.
R_S
-16V to +80V
Supply
Load
Single-Pole Filter
Capacitor
+2.7V to +18V
IN+
IN-
PRE OUT BUF IN
V+
5kW
5kW
A1
OUT
96kW
A2
R_L
INA271
GND
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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