参数资料
型号: AD7440BRTZ-REEL7
厂商: Analog Devices Inc
文件页数: 5/29页
文件大小: 0K
描述: IC ADC 10BIT DIFF 1MSPS SOT23-8
标准包装: 1
位数: 10
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: SOT-23-8
供应商设备封装: SOT-23-8
包装: 标准包装
输入数目和类型: 1 个差分,单极
其它名称: AD7440BRTZ-REEL7DKR
AD7440/AD7450A
Rev. C | Page 12 of 28
AD7440/AD7450A–TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25°C, fS = 1 MSPS, fSCLK = 18 MHz, unless otherwise noted.
75
70
65
60
55
10
100
1000
03051-A
-007
FREQUENCY (kHz)
S
INAD
(dB)
VDD = 5.25V
VDD = 4.75V
VDD = 3.6V
VDD = 2.7V
Figure 7. AD7450A SINAD vs. Analog Input Frequency for Various
Supply Voltages
0
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
10
1000
100
10000
03051-A
-008
FREQUENCY (kHz)
CMRR
(dB)
VDD = 3V
VDD = 5V
Figure 8. CMRR vs. Frequency for VDD = 5 V and 3 V
0
–120
–20
–40
–60
–80
–100
0
100
200
300
400
500
600
700
800
900
1000
03051-A
-009
SUPPLY RIPPLE FREQUENCY (kHz)
P
S
RR
(dB)
100mV p-p SINEWAVE ON VDD
NO DECOUPLING ON VDD
VDD = 3V
VDD = 5V
Figure 9. PSRR vs. Supply Ripple Frequency without Supply Decoupling
0
–140
–120
–100
–80
–60
–40
–20
0
100
200
300
400
500
03051-A
-010
FREQUENCY (kHz)
S
NR
(dB)
8192 POINT FFT
fSAMPLE = 1MSPS
fIN = 100kSPS
SINAD = +71.7dB
THD = –82dB
SFDR = –83dB
Figure 10. AD7450A Dynamic Performance with VDD = 5 V
1.0
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
0
1024
2048
3072
4096
03051-A
-011
CODE
DNL
E
RROR
(LS
B
)
Figure 11. Typical DNL for the AD7450A for VDD = 5 V
1.0
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
0
1024
2048
3072
4096
03051-A
-012
CODE
INL
E
RROR
(LS
B
)
Figure 12. Typical INL for the AD7450A for VDD = 5 V
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