Datasheet

f (kHz)
IN
1
10 100
95
100
105
110
115
120
125
130
-
-
-
-
-
-
-
-
250
VA=VBD=2.7V
V =2.500V
REF
VA=VBD=5.0V
V =4.096V
REF
Crosstalk(dB)
f (kHz)
IN
1
10 100
16.0
15.5
15.0
14.5
14.0
13.5
13.0
12.5
12.0
11.5
11.0
250
VA=VBD=5.0V
V =4.096V
REF
VA=VBD=2.7V
V =2.500V
REF
ENOB(Bits)
500
RippleFrequency(kHz)
0.1 1 10 100
95
90
85
80
75
70
65
60
55
50
45
40
35
PSRR(dB)
VA=VBD=2.7V
V =2.500V
REF
VA=VBD=5.0V
V =4.096V
REF
V =0.5V
RIPPLE PP
ADS8331
ADS8332
www.ti.com SBAS363C –DECEMBER 2009–REVISED MAY 2012
TYPICAL CHARACTERISTICS: AC Performance (continued)
At T
A
= +25°C, V
REF
(REF+ – REF–) = 4.096V when VA = VBD = 5V or V
REF
(REF+ – REF–) = 2.5V when VA = VBD = 2.7V,
f
SCLK
= 21MHz, f
SAMPLE
= 500kSPS, and f
IN
= 10kHz, unless otherwise noted.
EFFECTIVE NUMBER OF BITS POWER-SUPPLY REJECTION RATIO
vs INPUT FREQUENCY vs POWER-SUPPLY RIPPLE FREQUENCY
Figure 31. Figure 32.
CROSSTALK
vs INPUT FREQUENCY
Figure 33.
Copyright © 2009–2012, Texas Instruments Incorporated 17