参数资料
型号: AD7674ASTZ
厂商: Analog Devices Inc
文件页数: 5/28页
文件大小: 0K
描述: IC ADC 18BIT 800KSPS 48-LQFP
产品培训模块: ADC Applications
ADC Architectures
ADC DC/AC Performance
标准包装: 1
系列: PulSAR®
位数: 18
采样率(每秒): 800k
数据接口: 串行,并联
转换器数目: 1
功率耗散(最大): 138mW
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: 托盘
输入数目和类型: 1 个差分,双极
产品目录页面: 778 (CN2011-ZH PDF)
配用: EVAL-AD7674CBZ-ND - BOARD EVALUATION FOR AD7674
AD7674
Rev. A | Page 13 of 28
POSITIVE DNL (LSB)
120
0
NUMBE
R
OF
UNITS
100
60
20
0
40
80
0.5
1.0
1.5
03083-0-011
2.0
Figure 11. Typical Positive DNL Distribution (424 Units)
FREQUENCY (kHz)
0
50
100
400
AMP
L
ITUDE
(dB
of
Full
S
c
a
le
)
–40
–60
–100
–180
–80
–120
03083-0-012
–140
–20
–160
150
200
250
300
350
fS = 800kSPS
fIN = 10kHz
VREF = 4.096V
SNR = 98.4dB
THD = 119.1dB
SFDR = 120.4dB
SINAD = 98.4dB
Figure 12. FFT (10 kHz Tone)
FREQUENCY (kHz)
0
50
100
400
AMP
L
ITUDE
(dB
of
Full
S
c
a
le
)
–40
–60
–100
–180
–80
–120
03083-0-013
–140
–20
–160
150
200
250
300
350
fS = 800kSPS
fIN = 100kHz
VREF = 4.096V
SNR = 98.8dB
THD = 104.3dB
SFDR = 104.9dB
SINAD = 97.8dB
Figure 13. FFT (100 kHz Tone)
NEGATIVE DNL (LSB)
250
–2.0
NUMBE
R
OF
UNITS
200
150
50
0
–1.5
–1.0
–0.5
03083-0-014
100
0
Figure 14. TypicalNegative DNL Distribution (424 Units)
FREQUENCY (kHz)
102
1
S
NR
AND
S
/[N+D]
(dB)
99
90
78
75
84
96
10
100
1000
03083-0-015
93
81
87
ENOB
S/(N+D)
SNR
16.0
16.5
15.0
15.5
14.0
14.5
13.5
ENOB
(
B
it
s)
Figure 15. SNR, S/(N+D), and ENOB vs. Frequency
FREQUENCY (kHz)
–60
1
THD,
HARMONICS
(dB)
–70
–100
–130
–120
–80
10
100
1000
03083-0-016
–90
–110
THD
THIRD
HARMONIC
SFDR
140
60
20
40
0
S
F
DR
(dB)
120
80
100
SECOND
HARMONIC
Figure 16. THD, SFDR, and Harmonics vs. Frequency
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