參數資料
型號: ADS6242IRGZTG4
廠商: TEXAS INSTRUMENTS INC
元件分類: ADC
英文描述: 2-CH 14-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, PQCC48
封裝: 7 X 7 MM, GREEN, PLASTIC, QFN-48
文件頁數: 22/76頁
文件大?。?/td> 3497K
代理商: ADS6242IRGZTG4
www.ti.com
SNR
dBFS
70
71
72
73
74
75
76
77
72
74
76
78
80
82
84
86
0.5
1.0
1.5
2.0
2.5
3.0
SFDR
dBc
Input Clock Amplitude VPP
G013
SNR
SFDR
fIN = 50.1 MHz
SNR
dBFS
72
73
74
75
76
77
78
Input Clock Duty Cycle %
84
85
86
87
88
89
90
35
40
45
50
55
60
65
SFDR
dBc
G014
SNR
SFDR
fIN = 20.1 MHz
fS Sampling Frequency MSPS
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
25
50
75
100
125
P
D
Power
Dissipation
W
G015
LVDD
AVDD
Output Code
0
5
10
15
20
25
30
35
40
8187 8188 8189 8190 8191 8192 8193 8194 8195 8196
Occurence
%
G016
RMS (LSB) = 1.064
f Frequency MHz
100
90
80
70
60
50
40
30
20
10
0
50
100
150
200
250
300
CMRR
Common-Mode
Rejection
Ratio
dBc
G018
SNR
dBFS
68
70
72
74
76
78
VVCM VCM Voltage V
84
86
88
90
92
94
1.30
1.35
1.40
1.45
1.50
1.55
1.60
1.65
1.70
fIN = 50.1 MHz
External Reference Mode
SFDR
dBc
G017
SNR
SFDR
SLAS542A – MAY 2007 – REVISED JULY 2007
TYPICAL CHARACTERISTICS - ADS6245 (Fs = 125 MSPS) (continued)
All plots are at 25
°C, AVDD = LVDD = 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 (unless
otherwise noted)
PERFORMANCE vs CLOCK AMPLITUDE
PERFORMANCE vs CLOCK DUTY CYCLE
Figure 18.
Figure 19.
OUTPUT NOISE HISTOGRAM WITH
POWER DISSIPATION vs SAMPLING FREQUENCY
INPUTS TIED TO COMMON-MODE
Figure 20.
Figure 21.
PERFORMANCE IN EXTERNAL REFERENCE MODE
CMRR vs FREQUENCY
Figure 22.
Figure 23.
Copyright 2007, Texas Instruments Incorporated
29
Product Folder Link(s): ADS6245 ADS6244 ADS6243 ADS6242
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