(AVDD = +5 V, DVDD = +5 V, DRVDD = +5 V, f
參數(shù)資料
型號: AD9243ASZ
廠商: Analog Devices Inc
文件頁數(shù): 21/24頁
文件大?。?/td> 0K
描述: IC ADC 14BIT 3MSPS 44-MQFP
標準包裝: 1
位數(shù): 14
采樣率(每秒): 3M
數(shù)據接口: 并聯(lián)
轉換器數(shù)目: 7
功率耗散(最大): 145mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 44-QFP
供應商設備封裝: 44-MQFP(10x10)
包裝: 托盤
輸入數(shù)目和類型: 2 個單端,單極;1 個差分,單極
AD9243
REV. A
–6–
Typical Differential AC Characterization Curves/Plots
(AVDD = +5 V, DVDD = +5 V, DRVDD = +5 V, fSAMPLE
= 3.00 MSPS, TA = +25 C, Differential Input)
INPUT FREQUENCY – Hz
SINAD
dB
90
85
50
100k
1M
20M
10M
80
75
55
70
65
60
–0.5dBFS
–6.0dBFS
–20.0dBFS
14.7
13.8
8.0
13.0
12.2
8.8
11.3
10.5
9.7
ENOB
Bits
Figure 2. SINAD vs. Input Frequency
(Input Span = 5 V, VCM = 2.5 V)
INPUT FREQUENCY – Hz
SINAD
dB
100k
1M
20M
10M
–0.5dBFS
–20.0dBFS
14.7
13.8
8.0
13.0
12.2
8.8
11.3
10.5
9.7
ENOB
Bits
90
85
80
75
70
65
60
55
50
–6.0dBFS
Figure 5. SINAD vs. Input Frequency
(Input Span = 2 V, VCM = 2.5 V)
SAMPLE RATE – MSPS
–60
–65
–100
0.1
1
5
5V SPAN
2V SPAN
–70
–75
–95
–80
–85
–90
THD
dB
Figure 8. THD vs. Sample Rate
(fIN = 1.5 MHz, AIN = –0.5 dBFS,
VCM = 2.5 V)
–0.5dBFS
–6.0dBFS
–20.0dBFS
INPUT FREQUENCY – Hz
THD
dB
–40
–50
–100
100k
1M
20M
10M
–70
–80
–90
–60
Figure 3. THD vs. Input Frequency
(Input Span = 5 V, VCM = 2.5 V)
–0.5dBFS
–6.0dBFS
–20.0dBFS
INPUT FREQUENCY – Hz
THD
dB
–40
–50
–100
100k
1M
20M
10M
–70
–80
–90
–60
Figure 6. THD vs. Input Frequency
(Input Span = 2 V, VCM = 2.5 V)
AIN – dBFS
SFDR
dBc
AND
dBFS
110
40
–60
–50
0
–40
–30
–20
–10
100
90
80
60
50
70
dBc – 5V
dBc – 2V
dBFS – 5V
dBFS – 2V
Figure 9. Single Tone SFDR
(fIN = 1.5 MHz, VCM = 2.5 V)
93
4
2
8
5
7
6
0
–15
–30
–45
–60
–75
–90
–105
–120
–135
–150
0
1.5
FREQUENCY – MHz
AMPLITUDE
dB
1
Figure 4. Typical FFT, fIN = 500 kHz
(Input Span = 5 V, VCM = 2.5 V)
9
3
4
2
8
5
7
6
1
0
–15
–30
–45
–60
–75
–90
–105
–120
–135
–150
0
1.5
FREQUENCY – MHz
AMPLITUDE
dB
Figure 7. Typical FFT, fIN = 1.50 MHz
(Input Span = 2 V, VCM = 2.5 V)
INPUT POWER LEVEL (F1 = F2) – dBFS
WORST
CASE
SPURIOUS
dBc
AND
dBFS
110
60
–40 –35
0
–30 –25 –20 –15 –10
–5
105
90
85
75
65
100
95
80
70
5V SPAN - dBFS
5V SPAN - dBc
2V SPAN - dBFS
2V SPAN - dBc
Figure 10. Dual Tone SFDR
(f1 = 0.95 MHz, f2 = 1.04 MHz,
VCM = 2.5 V)
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