参数资料
型号: AD7679ASTZ
厂商: Analog Devices Inc
文件页数: 6/28页
文件大小: 0K
描述: IC ADC 18BIT 570KSPS 48-LQFP
标准包装: 1
系列: PulSAR®
位数: 18
采样率(每秒): 570k
数据接口: 串行,并联
转换器数目: 1
功率耗散(最大): 103mW
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-AD7679CBZ-ND - BOARD EVALUATION FOR AD7679
AD7679
Rev. A | Page 14 of 28
–55
S
NR,
S
/[N+D]
(dB)
98
96
03085-0-018
99
97
–35
125
85
65
5
–15
100
SNR
ENOB
14.5
15.0
15.5
16.5
16.0
S/(N+D)
25
45
105
TEMPERATURE (
°C)
TEMPERATURE (
°C)
1000
–55
P
O
WE
R-DOWN
OP
E
RATING
CURRE
NTS
(nA)
700
400
200
0
300
100
500
125
DVDD
–35
–155
25456585
105
AVDD
OVDD
03085-0-021
500
800
900
Figure 17. SNR, S/(N+D), and ENOB vs. Temperature
Figure 20. Power-Down Operating Currents vs. Temperature
TEMPERATURE (
°C)
–55
ZE
RO
E
RROR,P
O
S
ITIV
E
AND
NEGATIVE
FULL
SCALE
(LSB)
–15
–25
03085-0-022
–20
–35
125
85
65
5
–15
25
45
105
–5
5
–10
0
10
15
20
POSITIVE
FULL SCALE
NEGATIVE
FULL SCALE
ZERO ERROR
TEMPERATURE (
°C)
–55
THD,
HARMONICS
(dB)
–120
–140
03085-0-019
–110
–130
–35
125
85
65
5
–15
–100
25
45
105
THIRD
HARMONIC
SECOND
HARMONIC
THD
Figure 18. THD and Harmonics vs. Temperature
Figure 21. Zero Error Positive and Negative Full Scale vs. Temperature
SAMPLING RATE (SPS)
100000
OP
E
RATING
CURRE
NTS
(
μA)
0.001
1M
10000
1000
100
10
1
0.1
0.01
100k
10k
1k
100
1
AVDD
10
DVDD
OVDD
PDBUF HIGH
03085-0-020
CL (pF)
0
t 12
DE
LAY
(ns
)
10
0
03085-0-024
200
150
50
100
30
20
40
OVDD = 2.7V @ 85°C
OVDD = 5V @ 85°C
OVDD = 5V @ 25°C
OVDD = 2.7V @ 25°C
Figure 19. Operating Current vs. Sampling Rate
Figure 22. Typical Delay vs. Load Capacitance CL
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