AD7801BR 查看數據表（PDF） - Analog Devices
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AD7801BR Datasheet PDF : 16 Pages
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AD7801–Typical Performance Characteristics
T
VDD
1
T
2
VOUT
CH1 5.00V CH2 5.00V M20.0ms CH1
Figure 11. Power-On—Reset
10
9
8
7
VDD = 2.7 TO 5.5V
6 DAC LOADED WITH ALL ZEROES
INTERNAL REFERENCE
5
4
3
2
1
0
–50 –25
0 25 50 75 100 125
TEMPERATURE – C
Figure 12. Zero Code Error vs.
Temperature
WR
1
VOUT
VDD = 5V
INTERNAL VOLTAGE
REFERENCE
10 LSB STEP CHANGE
TA = +25؇C
2
CH1 5.00V, CH2 50.0mV, M 250ns
Figure 13. Small-Scale Settling Time
0.5
0.4 VDD = 5V
INTERNAL REFERENCE
0.3
5kΩ 100pF LOAD
LIMITED CODE RANGE (15–245)
0.2 TA = +25°C
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
0
32 64 96 128 160 192 224 256
INPUT CODE (15 to 245)
Figure 14. Integral Linearity Plot
0.5
0.4
0.3
0.2 VDD = 5V
INTERNAL REFERENCE
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
–60 –40 –20 0 20 40 60 80 100 120 140
TEMPERATURE – C
Figure 15. Typical INL vs. Temperature
0.5
0.4
0.3
0.2
0.1 VDD = 5V
INTERNAL REFERENCE
0
–0.1
–0.2
–0.3
–0.4
–0.5
–60 –40 –20 0 20 40 60 80 100 120 140
TEMPERATURE – C
Figure 16. Typical DNL vs. Temperature
1.0
VDD = 5V
0.8
0.6
0.4
0.2
0
–60 –40 –20 0 20 40 60 80 100 120 140
TEMPERATURE – C
Figure 17. Typical Internal Reference
Error vs. Temperature
1000
900
800
700
600
500
400
300
200
100
0
–50
VDD = 5V
LOGIC INPUTS = VDD OR GND
–25 0 25 50 75 100 150
TEMPERATURE – C
Figure 18. Power-Down Current vs.
Temperature
–6–
REV. 0
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