Datasheet


SLAS400B − SEPTEMBER 2003 − REVISED NOVEMBER 2005
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13
TYPICAL CHARACTERISTICS
(1)
Figure 13
0
20000
40000
60000
80000
100000
120000
140000
2046 2047 2048 2049 2050
Count
Code
HISTOGRAM
(DC CODE SPREAD AT THE CENTER OF CODE)
+VA = 5 V,
+VBD = 5 V,
Code = 2048,
T
A
= 255C
Count = 130879
Count
= 0
Count
= 1
Count
= 192
Count
= 0
Figure 14
11
11.1
11.2
11.3
11.4
11.5
11.6
11.7
11.8
11.9
12
−40 −20 0 20 40 60 80
ENOB − Effective Number of Bits − Bits
EFFECTIVE NUMBER OF BITS
vs
FREE-AIR TEMPERATURE
T
A
− Free-Air Temperature − °C
f
i
= 100 kHz,
+VA = 5 V,
+VBD = 5 V
Figure 15
71
71.2
71.4
71.6
71.8
72
−40 −20 0 20 40 60 80
SIGNAL-TO-NOISE AND DISTORTION
vs
FREE-AIR TEMPERATURE
SINAD − Signal-to-Noise and Distortion − dB
T
A
− Free-Air Temperature − °C
f
i
= 100 kHz,
+VA = 5 V,
+VBD = 5 V
Figure 16
71
71.1
71.2
71.3
71.4
71.5
71.6
71.7
71.8
71.9
72
−40 −20 0 20 40 60 80
SIGNAL-TO-NOISE RATIO
vs
FREE-AIR TEMPERATURE
SNR − Signal-to-Noise Ratio − dB
T
A
− Free-Air Temperature − °C
f
i
= 100 kHz,
+VA = 5 V,
+VBD = 5 V
(1)
At sample rate = 4 MSPS, V
ref
= 2.5 V external, unless otherwise specified.