AD5687R(Rev0) Просмотр технического описания (PDF) - Analog Devices
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AD5687R Datasheet PDF : 28 Pages
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Data Sheet
TYPICAL PERFORMANCE CHARACTERISTICS
2.5020
2.5015
2.5010
DEVICE 1
DEVICE 2
DEVICE 3
DEVICE 4
DEVICE 5
VDD = 5V
2.5005
2.5000
2.4995
2.4990
2.4985
2.4980
–40 –20
0
20
40
60
80 100 120
TEMPERATURE (°C)
Figure 8. Internal Reference Voltage vs. Temperature (Grade B)
2.5020
2.5015
2.5010
DEVICE 1
DEVICE 2
DEVICE 3
DEVICE 4
DEVICE 5
2.5005
2.5000
2.4995
2.4990
2.4985
2.4980
–40 –20 0
VDD = 5V
20 40 60 80 100 120
TEMPERATURE (°C)
Figure 9. Internal Reference Voltage vs. Temperature (Grade A)
90
VDD = 5V
80
70
60
50
40
30
20
10
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
TEMPERATURE DRIFT (ppm/°C)
Figure 10. Reference Output Temperature Drift Histogram
AD5689R/AD5687R
0 HOUR
60
168 HOURS
500 HOURS
1000 HOURS
50
VDD = 5.5V
40
30
20
10
0
2.498
2.499
2.500
VREF (V)
2.501
2.502
Figure 11. Reference Long-Term Stability/Drift
1600 VDD = 5V
TA = 25°C
1400
1200
1000
800
600
400
200
0
10
100
1k
10k
100k
1M
FREQUENCY (MHz)
Figure 12. Internal Reference Noise Spectral Density vs. Frequency
VDD = 5V
T
TA = 25°C
1
CH1 10µV
M1.0s
A CH1 160mV
Figure 13. Internal Reference Noise, 0.1 Hz to 10 Hz
Rev. 0 | Page 11 of 28
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