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ADS131A02IPBSR Datasheet(PDF) 8 Page - Texas Instruments

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No. de pieza ADS131A02IPBSR
Descripción Electrónicos  2- or 4-Channel, 24-Bit, Analog Front-Ends for Power Monitoring, Control, and Protection
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

ADS131A02IPBSR Datasheet(HTML) 8 Page - Texas Instruments

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8
ADS131A02, ADS131A04
SBAS590A – MARCH 2016 – REVISED MARCH 2016
www.ti.com
Product Folder Links: ADS131A02 ADS131A04
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Copyright © 2016, Texas Instruments Incorporated
Electrical Characteristics (continued)
Minimum and maximum specifications apply from TA = –40°C to +125°C. Typical specifications are at TA = 25°C. All
specifications are at VIOVDD = 3.3 V, VAVDD = 2.5 V, VAVSS = –2.5 V, VNCPEN (register 0Bh, bit 7) = 0, internal VREF = 2.442 V,
fCLKIN = 16.384 MHz, fMOD = 4.096 MHz, data rate = 8 kSPS, and gain = 1 (unless otherwise noted).
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
INTERNAL REFERENCE VOLTAGE (REFP – REFN)
VREF
Reference output voltage
VREF_4V bit = 0
2.442
V
VREF_4V bit = 1, VAVDD – VAVSS > 4.5 V
4.0
Accuracy
±0.1%
Temperature drift
Including reference buffer drift, –40°C
≤ TA ≤ +125°C
4
20
ppm/°C
Start-up time
REFEXT = 1-µF to AVSS, settled to 1%
0.2
ms
REFEXT = 1-µF to AVSS, settled to 0.1%
1.2
REFEXT = 1-µF to AVSS, settled to 0.01%
250
REFP source capability
100
µA
EXTERNAL CLOCK SOURCE
fICLK
Internal ICLK frequency (SCLK output
in master mode)
CLKSRC bit = 0
0.2
8.192
12.5
MHz
fMOD
ADC modulator frequency
High-resolution mode
VNCPEN bit = 0
0.1
4.096
4.25
MHz
VNCPEN bit = 1
0.512
4.096
4.25
Low-power mode
VNCPEN bit = 0
0.1
1.024
1.05
VNCPEN bit = 1
0.512
1.024
1.05
DIGITAL INPUT/OUTPUT
VIH
High-level input voltage
0.8
IOVDD
IOVDD
V
VIL
Low-level input voltage
GND
0.2
IOVDD
V
VOH
High-level output voltage
IOH = 1 mA
0.8
IOVDD
V
VOL
Low-level output voltage
IOL = –1 mA
0.2
IOVDD
V
IIN
Input current
0 V < VDigital Input < IOVDD
–10
10
μA
POWER-SUPPLY
Power dissipation
Standby mode, fCLKIN = 16.384 MHz
2.6
mW
POWER-SUPPLY (Negative Charge Pump Enabled, VNCPEN = 1)
VNCP
Negative charge pump output voltage
–2.25
–1.95
–1.65
V
AVDD current
ADS131A02, high-resolution mode
3.2
mA
ADS131A02, low-power mode
0.9
ADS131A04, high-resolution mode
4.0
ADS131A04, low-power mode
1.1
IOVDD current
ADS131A02, high-resolution mode
0.6
mA
ADS131A02, low-power mode
0.5
ADS131A04, high-resolution mode
0.8
ADS131A04, low-power mode
0.5
POWER-SUPPLY (ADS131A02, VNCPEN = 1, VAVDD = 3.3 V, VAVSS = 0 V)
Power dissipation
High-resolution mode
12.5
mW
Low-power mode
4.6
POWER-SUPPLY (ADS131A04, VNCPEN = 1, VAVDD = 3.3 V, VAVSS = 0 V)
Power dissipation
High-resolution mode
15.8
mW
Low-power mode
5.3


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