INA270 Datasheet, PDF (1/13 Pages) Burr-Brown (TI) – Voltage Output, Unidirectional Measurement Current-Shunt Monitor

INA270
INA271
SBOS381 − FEBRUARY 2007
Voltage Output, Unidirectional Measurement
Current-Shunt Monitor
FEATURES
DESCRIPTION
D WIDE COMMON-MODE RANGE: −16V to +80V
D CMRR: 120dB
D ACCURACY:
The INA270 and INA271 family of current-shunt monitors
with voltage output can sense voltage drops across
current shunts at common-mode voltages from −16V to
+80V, independent of the supply voltage. The INA270 and
− ±2.5mV offset (max)
INA271 pinouts readily enable filtering.
− ±1% gain error (max)
− 20µV/°C offset drift (max)
− 55ppm/°C gain drift (max)
The INA270 and INA271 are available with two output
voltage scales: 14V/V and 20V/V. The 130kHz bandwidth
simplifies use in current-control loops.
D BANDWIDTH: Up to 130kHz
The INA270 and INA271 operate from a single +2.7V to
D TWO TRANSFER FUNCTIONS AVAILABLE:
− 14V/V (INA270)
− 20V/V (INA271)
D QUIESCENT CURRENT: 900µA (max)
+18V supply, drawing a maximum of 900µA of supply
current. They are specified over the extended operating
temperature range of −40°C to +125°C and are offered in
an SO-8 package.
D POWER SUPPLY: +2.7V to +18V
D PROVISION FOR FILTERING
R_S
−16V to +80V
Supply
APPLICATIONS
D POWER MANAGEMENT
Load
Single−Pole Filter
Capacitor
D AUTOMOTIVE
+2.7V to +18V
D TELECOM EQUIPMENT
D NOTEBOOK COMPUTERS
D BATTERY CHARGERS
IN+
IN−
PRE OUT BUF IN
V+
5kΩ
5kΩ
D CELL PHONES
D WELDING EQUIPMENT
A1
OUT
DEVICE COMPARISON
DEVICE
INA270
INA271
GAIN
14V/V
20V/V
96kΩ
A2
R_L
INA270
GND
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PRODUCTION DATA information is current as of publication date. Products
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Production processing does not necessarily include testing of all parameters.
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