参数资料
型号: AD7674ACPZRL
厂商: Analog Devices Inc
文件页数: 4/28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 12 of 28
TYPICAL PERFORMANCE CHARACTERISTICS
CODE
2.5
0
65536
131072
196608
262144
INL-LSB
(18-Bit)
1.5
1.0
0
–1.5
0.5
–0.5
03083-0-005
–1.0
2.0
Figure 5. Integral Nonlinearity vs. Code
CODE IN HEX
70000
2004C
0
COUNTS
60000
40000
20000
0
30000
10000
50000
2004D
0
2004E
87
2004F
5073
20050
59121
20051 20052 20053
47
20054
0
20055
0
VREF = 5V
7165
58556
03083-0-006
Figure 6. Histogram of 131,072 Conversions of a
DC Input at the Code Transition
POSITIVE INL (LSB)
120
0
NUMBE
R
OF
UNITS
100
60
20
0
40
80
0.5
1.0
1.5
2.0
03083-0-007
2.5
Figure 7. Typical Positive INL Distribution (424 Units)
CODE
2.0
0
65536
131072
196608
262144
DNL-LS
B
(1
8
-Bit)
1.5
1.0
0
–1.0
0.5
–0.5
03083-0-008
Figure 8. Differential Nonlinearity vs. Code
CODE IN HEX
90000
2004D
0
COUNTS
60000
40000
20000
0
30000
10000
50000
1
2004E 2004F 20050 20051 20052 20053
627
20054
8
20055
0
VREF = 5V
25964
70000
80000
26939
28939
03083-0-009
793
Figure 9. Histogram of 131,072 Conversions of a
DC Input at the Code Center
NEGATIVE INL (LSB)
100
–2.5
NUMBE
R
OF
UNITS
80
60
20
0
50
70
–2.0
–1.5
1.0
–0.5
03083-0-010
90
40
30
10
0
Figure 10. Typical Negative INL Distribution (424 Units)
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