参数资料
型号: AD7674ACPZRL
厂商: Analog Devices Inc
文件页数: 6/28页
文件大小: 0K
描述: IC ADC 18BIT SAR 5V 48LFCSP
产品培训模块: ADC Applications
ADC Architectures
ADC DC/AC Performance
标准包装: 2,500
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-VFQFN 裸露焊盘,CSP
供应商设备封装: 48-LFCSP-VQ(7x7)
包装: 带卷 (TR)
输入数目和类型: 1 个差分,双极
配用: EVAL-AD7674CBZ-ND - BOARD EVALUATION FOR AD7674
AD7674
Rev. A | Page 14 of 28
INPUT LEVEL (dB)
–60
S
NR
RE
FE
RRE
D
TO
FULL
S
CALE
(dB)
101
98
95
96
100
03083-0-017
99
97
SNR
–50
0
–10
–20
–30
–40
105
102
104
103
VREF = 4.096V
S/(N+D)
Figure 17. SNR and S/(N+D) vs. Input Level
–55
S
NR,
S
/[N+D]
(dB)
98
96
03083-0-018
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)
VREF = 4.096V
Figure 18. SNR, S/(N+D), and ENOB vs. Temperature
TEMPERATURE (
°C)
–55
THD,
HARMONICS
(dB)
–120
–140
03083-0-019
–110
–130
–35
125
85
65
5
–15
–100
25
45
105
THIRD
HARMONIC
SECOND
HARMONIC
THD
Figure 19. THD and Harmonics 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, WARP/NORMAL
AVDD, IMPULSE
10
DVDD, WARP/NORMAL
DVDD, IMPULSE
OVDD, ALL MODES
PDBUF HIGH
03083-0-020
Figure 20. Operating Current vs. Sampling Rate
TEMPERATURE (
°C)
800
–55
P
O
WE
R-DOWN
OP
E
RATING
CURRE
NTS
(nA)
700
500
300
0
400
100
600
125
DVDD
–35
–15
5
25456585
105
AVDD
OVDD
03083-0-021
Figure 21. Power-Down Operating Currents vs. Temperature
TEMPERATURE (
°C)
–55
ZE
RO
E
RROR,P
O
S
ITIV
E
AND
N
E
GA
TIVE
FU
LL
SC
A
L
E
(
L
SB
)
–15
–25
03083-0-022
–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
Figure 22. Zero Error, Positive and Negative Full Scale vs. Temperature
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