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INA138-Q1 Datasheet(PDF) 1 Page - Texas Instruments

Part # INA138-Q1
Description  HIGH-SIDE MEASUREMENT CURRENT SHUNT MONITOR
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

INA138-Q1 Datasheet(HTML) 1 Page - Texas Instruments

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INA138-Q1, INA168-Q1
www.ti.com
SGLS174G – SEPTEMBER 2003 – REVISED JANUARY 2013
HIGH-SIDE MEASUREMENT CURRENT SHUNT MONITOR
Check for Samples: INA138-Q1, INA168-Q1
1
FEATURES
DESCRIPTION
Qualified For Automotive Applications
The
INA138-Q1
and
INA168-Q1
are
high-side,
ESD Protection Exceeds 2000 V Per MIL-STD-
unipolar, current shunt monitors. Wide input common-
883, Method 3015; Exceeds 200 V Using
mode voltage range, low quiescent current, and tiny
Machine Model (C = 200 pF, R = 0)
TSSOP and SOT23 packaging enable uses in a
Complete Unipolar High-Side Current-
variety of applications.
Measurement Circuit
Input common-mode and power-supply voltages are
Wide Supply And Common-Mode Range
independent and can range from 2.7 V to 36 V for the
INA138-Q1 and 2.7 V to 60 V for the INA168-Q1.
INA138-Q1: 2.7 V to 36 V
Quiescent current is only 25
μA, which permits
INA168-Q1: 2.7 V to 60 V
connecting the power supply to either side of the
Independent Supply and Input Common-Mode
current-measurement shunt with minimal error.
Voltages
The device converts a differential input voltage to a
Single Resistor Gain Set
current output. This current is converted back to a
Low Quiescent Current (25 µA Typical)
voltage with an external load resistor that sets any
gain from 1 to over 100. Although designed for
Wide Temperature Range: –40°C to 125°C
current
shunt
measurement,
the
circuit
invites
TSSOP
−8 and SOT23−5 Packages
creative applications in measurement and level
shifting.
APPLICATIONS
Both the INA138-Q1 and INA168-Q1 are available in
Current Shunt Measurement
TSSOP
−8 and SOT23−5 and are specified for the
Portable and Battery-Backup Systems
–40°C to 125°C temperature range.
Battery Chargers
Power Management
Precision Current Source
NC
− No internal connection
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2003–2013, Texas Instruments Incorporated
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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