Datasheet

´
PowerRegister
CurrentRegister
Two-Wire
Interface
VoltageRegister
V
S
(SupplyVoltage)
ADC
INA220
GND
V
I
V
IN+
V
IN-
A0
A1
SDA
DATA
SCL
CLK
C
0.1 F
BYPASS
m
+3.3Vto
+5V
BusVoltageInput
R1
F
R2
F
C
F
Load
Address
Select
Shunt
(40mV
max
for
12-bit)
Battery
INA220
SBOS459D –JUNE 2009–REVISED SEPTEMBER 2010 www.ti.com
Figure 25. General Source Low-Side Sensing
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REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision C (September, 2009) to Revision D Page
• Changed High Accuracy feature bullet from 1% to 0.5% for B-grade device ....................................................................... 1
• Added new paragraph to Description section regarding A- and B-grade versions of the device ......................................... 1
• Added new row to Packaging Information table to show new B-grade device ..................................................................... 2
• Added B-grade columns in the Electrical Characteristics for min, typ and max values ....................................................... 3
• Changed Current Sense Gain Error over temperature value and unit from "10 ppm/°C" to "1m%/°C" ............................... 3
• Added new section ............................................................................................................................................................. 22
Changes from Revision B (June, 2009) to Revision C Page
• Changed specified temperature range from –25°C to –40°C ............................................................................................... 3
• Changed Offset voltage (RTI) vs Temperature min specification from 0.1mV/°C to 0.16mV/°C ........................................... 3
• Changed specified temperature range from –25°C to –40°C ............................................................................................... 4
• Changed specified temperature range from –25°C to –40°C ............................................................................................... 4
• Updated Typical Characterstics: Figure 2, Figure 3, Figure 4, Figure 5 .............................................................................. 6
• Updated Typical Characterstics: Figure 8, Figure 9 ............................................................................................................. 7
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