Datasheet

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T − Temperature − °C
85
87
89
91
93
95
−40 −20 0 20 40 60 80
SFDR − dBc
G049
72
73
74
75
76
77
SNR − dBFS
f
IN
= 10.1 MHz
SFDR
SNR
Input Amplitude − dBFS
30
40
50
60
70
80
90
100
110
−60 −50 −40 −30 −20 −10 0
SFDR − dBc, dBFS
G050
SFDR (dBc)
SFDR (dBFS)
SNR (dBFS)
50
55
60
65
70
75
80
85
90
SNR − dBFS
f
IN
= 20 MHz
Input Clock Duty Cycle − %
80
82
84
86
88
90
92
94
96
30 35 40 45 50 55 60 65 70
SFDR − dBc
G052
SNR − dBFS
72
73
74
75
76
77
78
79
80
SNR
SFDR
f
IN
= 10.1 MHz
76
78
80
82
84
86
88
90
92
0.5 1.0 1.5 2.0 2.5 3.0
SFDR − dBc
Input Clock Amplitude − V
PP
G051
SNR
SFDR
f
IN
= 20.1 MHz
SNR − dBFS
72
73
74
75
76
77
78
79
80
V
VCM
− VCM Voltage − V
82
84
86
88
90
92
1.30 1.35 1.40 1.45 1.50 1.55 1.60 1.65 1.70
f
IN
= 20.1 MHz
External Reference Mode
SFDR − dBc
G054
SNR
SFDR
SNR − dBFS
72
74
76
78
80
82
Output Code
0
5
10
15
20
25
30
35
40
8204 8205 8206 8207 8208 8209 8210 8211 8212 8213
Occurence − %
G053
RMS (LSB) = 1.037
ADS6145, ADS6144
ADS6143, ADS6142
SLWS198B – JULY 2007 – REVISED MARCH 2008
TYPICAL CHARACTERISTICS - ADS6143 (F
S
= 80 MSPS) (continued)
All plots are at 25 ° C, AVDD = DRVDD = 3.3 V, maximum rated sampling frequency, sine wave input clock, 1.5 V
PP
differential
clock amplitude, 50% clock duty cycle, – 1 dBFS differential analog input, internal reference mode, 0 dB gain, CMOS output
interface (unless otherwise noted)
PERFORMANCE vs TEMPERATURE PERFORMANCE vs INPUT AMPLITUDE
Figure 57. Figure 58.
PERFORMANCE vs CLOCK AMPLITUDE PERFORMANCE vs INPUT CLOCK DUTY CYCLE
Figure 59. Figure 60.
OUTPUT NOISE HISTOGRAM WITH
INPUTS TIED TO COMMON-MODE PERFORMANCE IN EXTERNAL REFERENCE MODE
Figure 61. Figure 62.
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Product Folder Link(s): ADS6145, ADS6144 ADS6143, ADS6142