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PDF INA168 Data sheet ( Hoja de datos )
| Número de pieza | INA168 | |
| Descripción | High-Side Measurement CURRENT SHUNT MONITOR | |
| Fabricantes | Burr-Brown Corporation | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de INA168 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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® INA138
INA168
For most current data sheet and other product
information, visit www.burr-brown.com
High-Side Measurement
CURRENT SHUNT MONITOR
FEATURES
q COMPLETE UNIPOLAR HIGH-SIDE
CURRENT MEASUREMENT CIRCUIT
q WIDE SUPPLY AND COMMON-MODE
RANGE
q INA138: 2.7V to 36V
q INA168: 2.7V to 60V
q INDEPENDENT SUPPLY AND INPUT
COMMON-MODE VOLTAGES
q SINGLE RESISTOR GAIN SET
q LOW QUIESCENT CURRENT (25µA typ)
q SOT23-5 Package
APPLICATIONS
q CURRENT SHUNT MEASUREMENT
Automotive, Telephone, Computers
q PORTABLE & BATTERY BACKUP
SYSTEMS
q BATTERY CHARGERS
q POWER MANAGEMENT
q CELL PHONES
q PRECISION CURRENT SOURCE
DESCRIPTION
The INA138 and INA168 are high-side, unipolar,
current shunt monitors. Wide input common-mode
voltage range, low quiescent current, and tiny SOT-23
packaging enable use in a variety of applications.
Input common-mode and power supply voltages are
independent and can range from 2.7V to 36V for the
INA138 and 2.7V to 60V for the INA168. Both
models draw only 25µA quiescent current, which also
permits connecting the power supply to either side of
the current measurement shunt with minimal error.
The device converts a differential input voltage to a
current output. This current is converted back to a
voltage with an external load resistor that sets any
gain from 1 to over 100. Although designed for
current shunt measurement, the circuit invites creative
applications in measurement and level shifting.
Both the INA138 and INA168 are available in
SOT23-5 and are specified for the –40°C to +85°C
industrial temperature range.
VIN+
RS IS
3
VIN+
4
VIN–
Load
5kΩ
V+
5
5kΩ
GND
2
OUT
1
VO = ISRSRL/5kΩ
RL
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111
Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©1999 Burr-Brown Corporation
PDS-1576A
Printed in U.S.A. December, 1999
1 page  
TYPICAL PERFORMANCE CURVES (Cont.)
At TA = +25°C, V+ = 5V, VI+N = 12V, RL = 125kΩ, unless otherwise noted.
200mV
G=1
100mV
100mV
G=1
0mV
STEP RESPONSE
10µs/div
50mV/div
G = 25
0V
G = 10
0V
STEP RESPONSE
10µs/div
1V/div
500mV/div
®
5 INA138, INA168
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet INA168.PDF ] | |
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