Datasheet

-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
0 5 10 15
ChannelNumber
DNL max
DNL min
DNL -DifferentialNonlinearity-LSBs
+VA =5V,
+VBD=5V,
f =1MSPS
S
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
0 5 10 15
ChannelNumber
INL -IntegralNonlinearity-LSBs
INL max
INL min
+VA =5V,
+VBD=5V,
f =1MSPS
S
70
72
74
76
78
80
82
84
86
88
90
20 40 60 80 100
SFDR-SpuriousFreeDynamicRange-dB
f -InputFrequency-KHz
IN
10 W
1000 W
+VA =5V
+VBD=5V,
f =1MSPS,
T =25°C,
BufferBetweenMXOand AINP
S
A
100 W
500 W
70
70.5
71
71.5
72
72.5
73
1 2 3 4 5 6 7 8 9 10 11 12 1314 15 16
ChannelNumber
SNR-Signal-to-NoiseRatio-dB
+VA =5V,
+VBD=5V,
f =1MSPS
S
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
0 5 10 15 20
E -OffsetError-LSBs
O
ChannelNumber
+VA =5V,
+VBD=5V,
f =1MSPS
S
0
0.05
0.1
0.15
0.2
0.25
0 5 10 15 20
E -GainError-LSBs
G
ChannelNumber
+VA =5V,
+VBD=5V,
f =1MSPS
S
ADS7950, ADS7951, ADS7952, ADS7953
ADS7954, ADS7955, ADS7956, ADS7957
ADS7958, ADS7959, ADS7960, ADS7961
SLAS605A –JUNE 2008–REVISED JANUARY 2010 www.ti.com
TYPICAL CHARACTERISTICS (12-Bit Devices Only) (continued)
Variations for 10-bit and 8-bit devices are too small to be illustrated through the characteristic curves
SPURIOUS FREE DYNAMIC RANGE
vs
INPUT FREQUENCY
(Across Different Source Resistance DIFFERENTIAL NONLINEARITY INTEGRAL NONLINEARITY VARIATION
Values) VARIATION ACROSS CHANNELS ACROSS CHANNELS
Figure 31. Figure 32. Figure 33.
OFFSET ERROR VARIATION ACROSS GAIN ERROR VARIATION ACROSS SIGNAL-TO-NOISE RATIO VARIATION
CHANNELS CHANNELS ACROSS CHANNELS
Figure 34. Figure 35. Figure 36.
20 Submit Documentation Feedback Copyright © 2008–2010, Texas Instruments Incorporated
Product Folder Link(s): ADS7950, ADS7951, ADS7952, ADS7953 ADS7954, ADS7955, ADS7956, ADS7957 ADS7958,
ADS7959, ADS7960, ADS7961