参数资料
型号: AD7451BRMZ
厂商: Analog Devices Inc
文件页数: 4/25页
文件大小: 0K
描述: IC ADC 12BIT DIFF 1MSPS 8MSOP
标准包装: 50
位数: 12
采样率(每秒): 1M
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
功率耗散(最大): 9.25mW
电压电源: 单电源
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
供应商设备封装: 8-MSOP
包装: 管件
输入数目和类型: 1 个伪差分,单极
AD7441/AD7451
Rev. D | Page 11 of 24
5
CHAN
G
E
I
N
DNL
(
L
S
B)
–1.0
–0.5
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
1
234
4.0
VREF (V)
POSITIVE DNL
NEGATIVE DNL
03
15
3-
01
3
Figure 13. Change in DNL vs. VREF for VDD = 5 V
CHANG
E
IN
I
NL
(
L
S
B)
–2
–1
0
1
2
3
4
0
1
234
5
VREF (V)
5
POSITIVE DNL
NEGATIVE DNL
03
15
3-
01
4
Figure 14. Change in INL vs. VREF for VDD = 5 V
E
F
E
CT
IV
E
NUM
BE
R
O
F
BI
T
S
6
7
8
9
10
11
012345
12
VREF (V)
VDD = 3V
VDD = 5V
03
15
3-
01
5
Figure 15. ENOB vs. VREF for VDD = 5 V and 3 V
S
N
R
(
d
B)
0
100
200
300
400
500
0
–20
–40
–60
–80
–100
–120
–140
VREF (V)
8192 POINT FFT
fSAMPLE = 1MSPS
fIN = 100kSPS
SINAD = 61.7dB
THD = –81.7dB
SFDR = –82dB
03
15
3-
01
6
Figure 16. AD7441 Dynamic Performance
DNL
E
RRO
R
(
L
S
B)
0
256
512
768
1024
0.5
–0.5
–0.4
–0.3
–0.2
–0.1
0
0.1
0.2
0.3
0.4
CODE
0
31
53
-01
7
Figure 17. Typical DNL for the AD7441
INL
E
RRO
R
(
L
S
B
)
0
256
512
768
1024
0.5
–0.5
–0.4
–0.3
–0.2
–0.1
0
0.1
0.2
0.3
0.4
CODE
0
31
53
-01
8
Figure 18. Typical INL for the AD7441
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