参数资料
型号: AD7791BRMZ
厂商: Analog Devices Inc
文件页数: 20/20页
文件大小: 0K
描述: IC ADC 24BIT BUFFERED LP 10MSOP
标准包装: 50
位数: 24
采样率(每秒): 120
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
功率耗散(最大): 230µW
电压电源: 单电源
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
供应商设备封装: 10-MSOP
包装: 管件
输入数目和类型: 1 个差分,单极;1 个差分,双极
产品目录页面: 779 (CN2011-ZH PDF)
Data Sheet
AD7791
Rev. A | Page 9 of 20
TYPICAL PERFORMANCE CHARACTERISTICS
04227-0-012
–120
–110
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
40
80
20
60
100
120
140
dB
160
0
FREQUENCY (Hz)
Figure 6. Frequency Response with 16.6 Hz Update Rate
04227-0-010
0
20
8388591
OCCURENCE
8388619
40
60
80
100
CODE
VDD = 3V
VREF = 2.048V
9.5Hz UPDATE RATE
TA = 25°C
RMS NOISE = 1
V
Figure 7. Noise Distribution Histogram
(CDIV1 = CDIV0 = 0)
04227-0-011
8388591
0
200
400
600
800
CODE
1000
8388619
READ NO.
VDD = 3V, VREF = 2.048V, 9.5Hz UPDATE RATE
TA = 25°C, RMS NOISE = 1V
Figure 8. Typical Noise Plot with 16.6 Hz Update Rate
(CDIV1 = CDIV0 = 0)
04227-0-014
0
1
2
3
4
5
6
7
8
8388592
OCCURENCE
8388616
9
CODE
VDD = 3V
VREF = 2.048V
1.1875Hz UPDATE RATE
TA = 25°C
RMS NOISE = 1.25
F
Figure 9. Noise Histogram for Clock Divide by 8 Mode
(CDIV0 = CDIV1 = 1)
04227-0-013
8388592
0
20
40
60
80
CODE
100
8388616
READ NO.
VDD = 3V, VREF = 2.048V
1.1875Hz UPDATE RATE
TA = 25°C, RMS NOISE = 1.25F
Figure 10. Noise Plot in Clock Divide by 8 Mode
(CDIV0 = CDIV1 = 1)
04227-0-015
0
0.5
1.0
1.5
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
RMS
NOISE
(
V)
5.0
3.0
2.5
2.0
VREF (V)
VDD = 5V
UPDATE RATE = 16.6Hz
TA = 25°C
Figure 11. RMS Noise vs. Reference Voltage
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