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ADS8331 View Datasheet(PDF) - Texas Instruments

Part NameDescriptionManufacturer
ADS8331 2.7V~5.5V, 16 Bit 500KSPS Low Power Serial ADC / Low-Power, 16-Bit, 500kSPS, 4-/8-Channel Unipolar Input TI
Texas Instruments TI
ADS8331 Datasheet PDF : 39 Pages
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ADS8331
ADS8332
SBAS363 – DECEMBER 2009
www.ti.com
TYPICAL CHARACTERISTICS: DC Performance
At TA = +25°C, VREF (REF+ – REF–) = 4.096V when VA = VBD = 5V or VREF (REF+ – REF–) = 2.5V when VA = VBD = 2.7V,
fSCLK = 21MHz, and fSAMPLE = 500kSPS, unless otherwise noted.
INTEGRAL LINEARITY ERROR
vs CODE
INTEGRAL LINEARITY ERROR
vs CODE
3
3
VA = VBD = 2.7V
VA = VBD = 5.0V
2
VREF = 2.500V
2
VREF = 4.096V
1
1
0
0
-1
-1
-2
-2
-3
0000h
4000h
8000h
Output Code
Figure 5.
C000h
FFFFh
-3
0000h
4000h
8000h
Output Code
Figure 6.
C000h
FFFFh
DIFFERENTIAL LINEARITY ERROR
vs CODE
3
VA = VBD = 2.7V
2
VREF = 2.500V
1
0
-1
-2
-3
0000h
4000h
8000h
Output Code
Figure 7.
C000h
FFFFh
DIFFERENTIAL LINEARITY ERROR
vs CODE
3
VA = VBD = 5.0V
2
VREF = 4.096V
1
0
-1
-2
-3
0000h
4000h
8000h
Output Code
Figure 8.
C000h
FFFFh
ANALOG SUPPLY CURRENT
vs ANALOG SUPPLY VOLTAGE
8.0
7.5
VREF = 4.096V
7.0
6.5
VREF = 2.500V
6.0
5.5
5.0
4.5
4.0
VA (V)
Figure 9.
ANALOG SUPPLY CURRENT IN NAP MODE
vs ANALOG SUPPLY VOLTAGE
500
450
VREF = 2.500V
400
VREF = 4.096V
350
300
VA (V)
Figure 10.
12
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Product Folder Link(s): ADS8331 ADS8332
Copyright © 2009, Texas Instruments Incorporated
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