(AVDD = +5 V, DVDD = +5 V, DRVDD = +5 V, f
參數(shù)資料
型號(hào)： AD9241ASZRL
廠商： Analog Devices Inc
文件頁數(shù)： 21/24頁
文件大?。?/td> 0K
描述： IC ADC 14BIT SGL 1.25MSPS 44MQFP
標(biāo)準(zhǔn)包裝： 800
位數(shù)： 14
采樣率（每秒）： 1.25M
數(shù)據(jù)接口： 并聯(lián)
轉(zhuǎn)換器數(shù)目： 7
功率耗散（最大）： 85mW
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(yīng)商設(shè)備封裝： 44-MQFP（10x10）
包裝： 帶卷 (TR)
輸入數(shù)目和類型： 2 個(gè)單端，單極；1 個(gè)差分，單極
AD9241
REV. 0
–6–
Typical Differential AC Characterization Curves/Plots
(AVDD = +5 V, DVDD = +5 V, DRVDD = +5 V, fSAMPLE =
1.25 MSPS, TA = +25 C, Differential Input)
INPUT FREQUENCY – MHz
SINAD
–
dB
80
75
40
0.01
0.1
10.0
1.0
70
65
45
60
55
50
–0.5dBFS
–6.0dBFS
–20dBFS
Figure 2. SINAD vs. Input Frequency
(Input Span = 5 V, VCM = 2.5 V)
INPUT FREQUENCY – MHz
SINAD
–
dB
80
75
40
0.01
0.1
10.0
1.0
70
65
45
60
55
50
–0.5dBFS
–6.0dBFS
–20.0dBFS
Figure 5. SINAD vs. Input Frequency
(Input Span = 2 V, VCM = 2.5 V)
SAMPLE RATE – MSPS
–40
–100
0.1
1.0
10.0
–50
–80
–60
–70
THD
–
dB
–90
5V SPAN
2V SPAN
Figure 8. THD vs. Sample Rate
(fIN = 0.3 MHz, AIN = –0.5 dBFS,
VCM = 2.5 V)
–0.5dBFS
–6.0dBFS
–20.0dBFS
INPUT FREQUENCY – MHz
THD
–
dB
–40
–50
–100
0.01
0.1
10.0
1.0
–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 – MHz
THD
–
dB
–40
–50
–100
0.01
0.1
10.0
1.0
–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
–45 –39
–33
–27
–21
–15
100
90
80
60
50
70
dBc - 5V
dBFS - 5V
dBc - 2V
dBFS - 5V
–9
–3
0
Figure 9. Single Tone SFDR
(fIN = 0.6 MHz, VCM = 2.5 V)
8
FUND
5
3
2
6
7
9
4
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
0
FREQUENCY – kHz
AMPLITUDE
–
dB
–110
–120
–130
–140
–150
–160
–170
100
200
300
400
500
600
Figure 4. Typical FFT, fIN
500 kHz
(Input Span = 5 V, VCM = 2.5 V)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
0
FREQUENCY – kHz
AMPLITUDE
–
dB
–110
–120
–130
–140
–150
–160
–170
100
200
300
400
500
600
FUND
6
7
3
2
5
8
9
4
Figure 7. Typical FFT, fIN
500 kHz
(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 = 0.5 MHz, f2 = 0.6 MHz,
VCM = 2.5 V)
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