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INA210 Datasheet(PDF) 3 Page - Texas Instruments

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Part # INA210
Description  High or Low Side, Bi-Directional CURRENT/POWER MONITOR with Two-Wire Interface
PDF  39 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

INA210 Datasheet(HTML) 3 Page - Texas Instruments

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INA220
www.ti.com
SBOS459D – JUNE 2009 – REVISED SEPTEMBER 2010
ELECTRICAL CHARACTERISTICS: VS = +3.3V
Boldface limits apply over the specified temperature range, TA = –40°C to +85°C.
At TA = +25°C, VIN+ = 12V, VSENSE = (VIN+ – VIN–) = 32mV, VBUS = 12V, PGA = ÷ 1, and BRNG
(1) = 1, unless otherwise noted.
INA220A
INA220B
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
INPUT
Full-Scale Current Sense (Input) Voltage Range
PGA = ÷ 1
0
±40
0
±40
mV
PGA = ÷ 2
0
±80
0
±80
mV
PGA = ÷ 4
0
±160
0
±160
mV
PGA = ÷ 8
0
±320
0
±320
mV
Bus Voltage (Input Voltage) Range(2)
BRNG = 1
0
32
0
32
V
BRNG = 0
0
16
0
16
V
Common-Mode Rejection
CMRR
VIN+ = 0V to 26V
100
120
100
120
dB
Offset Voltage, RTI(3)
VOS
PGA = ÷ 1
±10
±100
±10
±50(4)
mV
PGA = ÷ 2
±20
±125
±20
±75
mV
PGA = ÷ 4
±30
±150
±30
±75
mV
PGA = ÷ 8
±40
±200
±40
±100
mV
vs Temperature
0.16
0.16
mV/°C
vs Power Supply
PSRR
VS = 3V to 5.5V
10
10
mV/V
Current Sense Gain Error
±40
±40
m%
vs Temperature, MSOP-10
1
1
m%/°C
Input Impedance
Active Mode
VIN+ Pin
20
20
mA
VIN– Pin
20
20
mA
VBUS Pin
(5)
320
320
k
Ω
Input Leakage(6)
Power-Down Mode
VIN+ Pin
0.1
±0.5
0.1
±0.5
mA
VIN– Pin
0.1
±0.5
0.1
±0.5
mA
DC ACCURACY
ADC Basic Resolution
12
12
Bits
1LSB Step Size
Shunt Voltage
10
10
mV
Bus Voltage
4
4
mV
Current Measurement Error
±0.2
±0.5
±0.2
±0.3
%
over Temperature
±1
±0.5
%
Bus Voltage Measurement Error
VBUS = 12V
±0.2
±0.5
±0.2
±0.5
%
over Temperature
±1
±1
%
Differential Nonlinearity
±0.1
±0.1
LSB
ADC TIMING
ADC Conversion Time
12-Bit
532
586
532
586
ms
11-Bit
276
304
276
304
ms
10-Bit
148
163
148
163
ms
9-Bit
84
93
84
93
ms
Minimum Convert Input Low Time
4
4
ms
SMBus
SMBus Timeout(7)
28
35
28
35
ms
(1)
BRNG is bit 13 of the Configuration Register.
(2)
This parameter only expresses the full-scale range of the ADC scaling. In no event should more than 26V be applied to this device.
(3)
Referred-to-input (RTI).
(4)
Shaded cells indicate improved specifications of the INA220B.
(5)
The input impedance of this pin may vary approximately ±15%.
(6)
Input leakage is positive (current flowing into the pin) for the conditions shown at the top of the table. Negative leakage currents can
occur under different input conditions.
(7)
SMBus timeout in the INA220 resets the interface any time SCL or SDA is low for over 28ms.
Copyright © 2009–2010, Texas Instruments Incorporated
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