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| BQ27620-G1 Datasheet, PDF (7/45 Pages) Texas Instruments – System-Side Impedance Track™ Fuel Gauge | |||
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bq27620-G1
www.ti.com
SLUSAE3 â OCTOBER 2012
3.8 ADC (TEMPERATURE AND CELL MEASUREMENT) CHARACTERISTICS
TA = â40°C to 85°C, 2.4 V < VCC < 2.6 V; typical values at TA = 25°C and VCC = 2.5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
VA1
Input voltage range (TS )
VSS â
2
0.125
VA2
Input voltage range (BAT)
VSS â
5
0.125
VIN(ADC)
GTEMP
Input voltage range
Internal temperature sensor
voltage gain
0.05
1
â2
tADC_CONV
Conversion time
Resolution
125
14
15
VOS(ADC)
ZADC1
Input offset
Effective input resistance
(TS )(1)
1
8
ZADC2
Ilkg(ADC)
Effective input resistance
(BAT) (1)
Input leakage current(1)
bq27620-G1 not measuring cell
voltage
bq27620-G1 measuring cell voltage
8
100
0.3
(1) Specified by design. Not tested in production.
UNIT
V
V
V
mV/°C
ms
bits
mV
Mâ¦
Mâ¦
kâ¦
μA
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ELECTRICAL SPECIFICATIONS
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