AD7398 查看數據表（PDF） - Analog Devices
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AD7398 Datasheet PDF : 24 Pages
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1.00
0.75
DNL
0.50
AD7398
TA = 25°C
VDD = +5V
VSS = –5V
0.25
INL
0
FSE
–0.25
–0.50
–0.75
–1.00
–5 –4 –3 –2 –1 0 1 2 3 4 5
REFERENCE VOLTAGE (V)
Figure 10. AD7398 INL, DNL, FSE vs. Reference Voltage
100
90
80
70
60
50
40
30
20
10
0
0
AD7398
VDD = +5V
VSS = –5V
VREF = +2.5V
TA = 25°C
512 1024 1536 2048 2560 3072 3584 4096
CODE (Decimal)
Figure 11. AD7398 Reference Input Current vs. Code
1000
AD7398
VDD = +5V
VSS = –5V
TA = 25°C
100
10
0
512 1024 1536 2048 2560 3072 3584 4096
CODE (Decimal)
Figure 12. AD7398 Reference Input Resistance vs. Code
AD7398/AD7399
10
AD7398/AD7399
8
SINKING CURRENT INTO VOUT
TA = 25°C
6
VDD = +3V, VSS = 0V
4
VDD = +5V, VSS = –5V
2
0
VDD = +5V, VSS = 0V
–2
–4
SOURCING CURRENT FROM VOUT
–6
VDD = +5V, VSS = –5V
VDD = +5V, VSS = 0V
–8
VDD = +3V, VSS = 0V
–10
–20 –15 –15 –5
0
5
10
15
20
SOURCE OR SINK CURRENT FROM VOUT (mA)
Figure 13. ΔVOUT vs. Load Current
25
AD7398
SAMPLE SIZE = 125
–40°C TO +125°C
20
15
10
5
0
0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6
FULL-SCALE ERROR TEMPCO (ppm/°C)
Figure 14. AD7398 Full-Scale Error Tempco
100
90
CS (5V/DIV)
10
VOUT (0.2V/DIV)
0%
TIME (2µs/DIV)
Figure 15. AD7398 Midscale Glitch
Rev. C | Page 11 of 24
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