參數(shù)資料
型號: AD7302BRZ
廠商: ANALOG DEVICES INC
元件分類: DAC
英文描述: 2.7 V to 5.5 V, Parallel Input Dual Voltage Output 8-Bit DAC
中文描述: PARALLEL, 8 BITS INPUT LOADING, 1.2 us SETTLING TIME, 8-BIT DAC, PDSO20
封裝: SOIC-20
文件頁數(shù): 15/16頁
文件大?。?/td> 292K
代理商: AD7302BRZ
AD7302
–8–
REV. 0
1
2
VOB
M20.0ms
VOA
VDD
3
CH1
CH3
5.00V
CH2
5.00V
CH1
T
Figure 11. Power-On—RESET
INPUT CODE (10 to 245)
INL
ERROR
LSB
0
256
32
64
96
128 160
192
224
DAC B
DAC A
VDD = 5V
INTERNAL REFERENCE
5k
100pf. LOAD
LIMITED CODE RANGE (10–245)
TA = +25°C
–0.5
0.4
0.1
–0.1
–0.3
–0.4
0.3
0.2
0
–0.2
0.5
Figure 14. Integral Linearity Plot
–25
4
0
7
6
2
1
5
3
8
9
10
–50
0
25
50
75
100
125
TEMPERATURE – C
DAC A
DAC B
ZERO
CODE
ERROR
LSB
VDD = 2.7 TO 5.5V
DAC LOADED WITH ALL ZEROES
INTERNAL REFERENCE
Figure 12. Zero Code Error vs.
Temperature
VDD = 5V
INTERNAL REFERENCE
0.5
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
–60 –40 –20
0
20
40
60
80 100 120 140
INL
ERROR
LSB
TEMPERATURE – C
Figure 15. Typical INL vs. Temperature
2
1
WR
VOUT
VDD = 5V
INTERNAL VOLTAGE
REFERENCE
10 LSB STEP CHANGE
TA = +25 C
CH1 5.00V, CH2 50.0mV, M 250ns
Figure 13. Small-Scale Settling Time
VDD = 5V
INTERNAL REFERENCE
0.5
0.4
0.3
0.2
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
DNL
ERROR
LSB
Figure 16. Typical DNL vs. Temperature
VDD = 5V
0.6
0.4
0.2
0
–60 –40 –20
0
20
40
60
80 100 120 140
TEMPERATURE – C
INT
REFERENCE
ERROR
%
0.8
1.0
Figure 17. Typical Internal Reference
Error vs. Temperature
TEMPERATURE – C
0
–50
–25
0
100
125
VDD = 5V
LOGIC INPUTS = VDD OR GND
100
200
300
400
500
600
700
800
900
1000
25
50
75
POWER-DOWN
CURRENT
nA
Figure 18. Power-Down Current vs.
Temperature
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