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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
www.ti.com
SBAS363 – DECEMBER 2009
TYPICAL CHARACTERISTICS: AC Performance (continued)
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, fSAMPLE = 500kSPS, and fIN = 10kHz, unless otherwise noted.
EFFECTIVE NUMBER OF BITS
vs INPUT FREQUENCY
POWER-SUPPLY REJECTION RATIO
vs POWER-SUPPLY RIPPLE FREQUENCY
16.0
15.5
15.0
14.5
14.0
13.5
13.0
12.5
12.0
11.5
11.0
1
VA = VBD = 5.0V
VREF = 4.096V
VA = VBD = 2.7V
VREF = 2.500V
10
fIN (kHz)
100
250
95
90
VRIPPLE = 0.5VPP
85
80
VA = VBD = 2.7V
VREF = 2.500V
75
70
65
VA = VBD = 5.0V
60
VREF = 4.096V
55
50
45
40
35
0.1
1
10
100
500
Ripple Frequency (kHz)
Figure 31.
Figure 32.
-95
-100
-105
-110
-115
-120
-125
-130
1
CROSSTALK
vs INPUT FREQUENCY
VA = VBD = 5.0V
VREF = 4.096V
VA = VBD = 2.7V
VREF = 2.500V
10
fIN (kHz)
Figure 33.
100
250
Copyright © 2009, Texas Instruments Incorporated
Product Folder Link(s): ADS8331 ADS8332
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