参数资料
型号: AD7661ASTZ
厂商: Analog Devices Inc
文件页数: 5/28页
文件大小: 0K
描述: IC ADC 16BIT W/REF 48-LQFP
标准包装: 1
系列: PulSAR®
位数: 16
采样率(每秒): 100k
数据接口: 串行,并联
转换器数目: 1
功率耗散(最大): 25mW
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: 2 个伪差分,单极
配用: EVAL-AD7661CBZ-ND - BOARD EVALUATION FOR AD7661
AD7661
Rev. 0 | Page 13 of 28
370
81
0
10005
16406
0
20000
40000
60000
80000
100000
120000
140000
7FFD 7FFE 7FFF 8000 8001 8002 8003 8004 8005 8006
COUNTS
CODE IN HEX
03033-0-011
0
00
117518
116740
Figure 11. Histogram of 261,120 Conversions of a
DC Input at the Code Transition
–180
–160
–140
–120
–100
–80
–60
–40
–20
0
AMP
LITUDE
(dB
of
Full
S
c
a
le
)
fS= 100kSPS
fIN= 45kHz
SNR = 89.2dB
THD = –102dB
SFDR = 103.1dB
S/[N+D] = 88.9dB
050
FREQUENCY (kHz)
03033-0-012
10
20
30
40
Figure 12. FFT Plot
81
82
83
84
85
86
87
88
89
90
91
1
10
100
1000
FREQUENCY (kHz)
S
NR,
S
/[N+D]
(dB)
13.0
13.5
14.0
14.5
15.0
15.5
ENOB
(
B
it
s)
SNR
S/[N+D
]
ENOB
03033-0-013
Figure 13. SNR, S/(N+D), and ENOB vs. Frequency
0
59
5181
3745
8
56132
61586
0
20000
40000
60000
80000
100000
120000
140000
7FFD 7FFE
7FFF
8000
8001
8002
8003
8004
7FFC
COUNTS
CODE IN HEX
03033-0-014
160000
180000
0
134409
Figure 14. Histogram of 261,120 Conversions of a
DC Input at the Code Center
–120
–115
–110
–105
–100
–95
–90
–85
–80
–75
–70
1
10
100
1000
20
30
40
50
60
70
80
90
100
110
120
SFDR
THD
THIRD
HARMONIC
FREQUENCY (kHz)
THD,
HARMONICS
(dB)
S
F
DR
(dB)
03033-0-015
SECOND
HARMONIC
Figure 15. THD, Harmonics, and SFDR vs. Frequency
87
88
89
90
91
92
–60
–50
–40
–30
–20
–10
0
INPUT LEVEL (dB)
S
NR,
S
/[N+D]
RE
FE
RRE
D
TO
FULL
S
CALE
(dB)
SNR
S/[N+D]
03033-0-016
Figure 16. SNR and S/(N+D) vs. Input Level (Referred to Full Scale)
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