参数资料
型号: AD9244BSTZRL-40
厂商: Analog Devices Inc
文件页数: 8/36页
文件大小: 0K
描述: IC ADC 14BIT SGL 40MSPS 48LQFP
标准包装: 2,000
位数: 14
采样率(每秒): 40M
数据接口: 并联
转换器数目: 1
功率耗散(最大): 300mW
电压电源: 模拟和数字
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 48-LQFP
供应商设备封装: 48-LQFP(7x7)
包装: 带卷 (TR)
输入数目和类型: 2 个单端,单极;1 个差分,单极
AD9244
Rev. C | Page 16 of 36
02404-034
FREQUENCY (MHz)
32.5
05
25
20
15
10
30.0
AMP
LITUDE
(dBFS
)
0
–20
–40
–60
–80
–100
–120
SNR = 62.6dBc
SFDR = 60.7dBc
Figure 34. Dual-Tone with fIN1 = 239.1 MHz and
fIN2 = 240.7 MHz (AIN1 = AIN2 = –6.5 dBFS)
02404-035
FREQUENCY (MHz)
0
5
10
15
20
25
30
AMP
LITUDE
(dBFS
)
0
–20
–10
–40
–30
–60
–50
–100
–110
–90
–80
–70
–120
SNR = 71.3dBc
THD = –90.8dBc
NOTE: SPUR FLOOR
BELOW 90dBFS @ 240MHz
Figure 35. Driving ADC Inputs with Transformer and Balun,
fIN = 240 MHz, AIN = –8.5 dBFS
02404-036
INPUT FREQUENCY (MHz)
250
0
50
100
150
200
AMP
LITUDE
(dBFS
)
105
100
95
90
85
80
75
70
65
Figure 36. CMRR vs. Input Frequency (AIN = 0 dBFS and CML = 2.5 V)
02404-037
AIN (dBFS)
–5
–30
–25
–20
–15
–10
dBFS
AND
dBc
100
90
80
70
60
50
40
SFDR = 90dBc
REFERENCE LINE
SNR (dBc)
SFDR (dBFS)
SNR (dBFS)
SFDR (dBc)
Figure 37. Dual-Tone SNR/SFDR vs. AIN with
fIN1 = 239.1 MHz and fIN2 = 240.7 MHz
02404-038
AIN (dBFS)
0
–21
–18
–15
–12
–9
–6
–3
dBFS
AND
dBc
100
85
90
95
80
75
70
65
60
55
50
SNR (dBc)
SNR (dBFS)
SFDR (dBc)
SFDR (dBFS)
SFDR = 90dBc
REFERENCE LINE
Figure 38. Driving ADC Inputs with Transformer and
Balun SNR/SFDR vs. AIN, fIN = 240 MHz
02404-039
AIN (dBFS)
0
–21
–18
–15
–12
–9
–6
–3
dBFS
AND
dBc
95
90
85
80
75
70
65
60
55
SNR (dBc)
SNR (dBFS)
SFDR (dBc)
SFDR (dBFS)
SFDR = 90dBc
REFERENCE LINE
Figure 39. Driving ADC Inputs with Transformer and
Balun SNR/SFDR vs. AIN, fIN = 190 MHz
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