AD7091R-5BCPZ-RL7 Просмотр технического описания (PDF) - Analog Devices
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AD7091R-5BCPZ-RL7 Datasheet PDF : 34 Pages
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Data Sheet
–75
THD
–77
SFDR
–79
–81
VDD = 3.0V
VREF = EXTERNAL
fSCL = 400kHz
fIN = 1kHz
SIGNAL AMPLITUDE = –0.5dB
TA = 25°C
–83
–85
–87
–89
–91
–93
–95
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
REFERENCE INPUT VOLTAGE (V)
Figure 17. THD, SFDR vs. Reference Input Voltage
–80
–81
–82
–83
–84
–85
–86
VDD = 5.0V
fSCL = 400kHz
–87 fIN = 1kHz
–88
–89
–90
–55 –35 –15
5
25 45 65
TEMPERATURE (°C)
85 105 125
Figure 18. THD vs. Temperature
68.8
68.6
68.4
68.2
68.0
VDD = 3.0V
VREF = 2.5V
fSCL = 400kHz
fIN = 1kHz
67.8
67.6
67.4
67.2
67.0
–55 –35 –15
5
25 45 65
TEMPERATURE (°C)
85 105 125
Figure 19. SNR vs. Temperature
AD7091R-5
50
VDD = 3.0V
45
VREF = INTERNAL 2.5V
fSCL = 400kHz
40
2.70V
3.00V
5.25V
35
30
25
20
15
10
–55
25
85
125
TEMPERATURE (°C)
Figure 20. Operational IDD Supply Current vs. Temperature
for Various VDD Supply Voltages
8
7
6
5.25V
5.0V
3.3V
5
2.7V
4
3
2
1
0
–40
25
85
125
TEMPERATURE (°C)
Figure 21. Total Power-Down Current vs. Temperature for Various Supply
Voltages
2.510
VDD = VDRIVE = 3.0V
2.505
–55°C
–40°C
+25°C
+85°C
+125°C
2.500
2.495
2.490
0
10 20 30 40 50 60 70 80 90 100
CURRENT LOAD (µA)
Figure 22. Reference Voltage Output (VREF) vs. Current Load
for Various Temperatures
Rev. A | Page 11 of 34
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