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INA210, INA211, INA212, INA213, INA214, INA215
SBOS437J – MAY 2008 – REVISED FEBRUARY 2017
INA21x Voltage Output, Low- or High-Side Measurement, Bidirectional,
Zero-Drift Series, Current-Shunt Monitors
1 Features
3 Description
•
•
The INA21x are voltage-output, current-shunt
monitors (also called current-sense amplifiers) that
are commonly used for overcurrent protection,
precision-current
measurement
for
system
optimization, or in closed-loop feedback circuits. This
series of devices can sense drops across shunts at
common-mode voltages from –0.3 V to 26 V,
independent of the supply voltage. Six fixed gains are
available: 50 V/V, 75 V/V, 100 V/V, 200 V/V, 500 V/V,
or 1000 V/V. The low offset of the zero-drift
architecture enables current sensing with maximum
drops across the shunt as low as 10-mV full-scale.
1
•
•
•
•
Wide Common-Mode Range: –0.3 V to 26 V
Offset Voltage: ±35 μV (Maximum, INA210)
(Enables Shunt Drops of 10-mV Full-Scale)
Accuracy:
– Gain Error (Maximum Over Temperature):
– ±0.5% (Version C)
– ±1% (Versions A and B)
– 0.5-µV/°C Offset Drift (Maximum)
– 10-ppm/°C Gain Drift (Maximum)
Choice of Gains:
– INA210: 200 V/V
– INA211: 500 V/V
– INA212: 1000 V/V
– INA213: 50 V/V
– INA214: 100 V/V
– INA215: 75 V/V
Quiescent Current: 100 μA (Maximum)
SC70 and Thin UQFN Packages: All Models
These devices operate from a single 2.7-V to 26-V
power supply, drawing a maximum of 100 µA of
supply current. All versions are specified over the
extended
operating
temperature
range
(–40°C to +125°C), and offered in SC70 and UQFN
packages.
Device Information(1)
PART NUMBER
•
•
•
•
•
BODY SIZE (NOM)
2.00 mm × 1.25 mm
UQFN (10)
INA21x
2 Applications
PACKAGE
SC70 (6)
1.80 mm × 1.40 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Notebook Computers
Cell Phones
Telecom Equipment
Power Management
Battery Chargers
Simplified Schematic
RSHUNT
Supply
Reference
Voltage
REF
INA21x
2.7 V to 26 V
CBYPASS
0.01 mF
to
0.1 mF
R1
R3
R4
IN-
IN+
V+
SC70
Output
OUT
R2
GND
Load
PRODUCT
GAIN
R3 and R4
R1 and R2
INA210
INA211
INA212
INA213
INA214
INA215
200
500
1000
50
100
75
5 kW
2 kW
1 kW
20 kW
10 kW
13.3 kW
1 MW
1 MW
1 MW
1 MW
1 MW
1 MW
VOUT = (ILOAD ´ RSHUNT) Gain + VREF
Copyright © 2017, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
