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參數(shù)資料
型號: AD5220BRM100
廠商: Analog Devices Inc
文件頁數(shù): 6/11頁
文件大小: 0K
描述: IC DGTL POT SNGL 128POS 8USOIC
標準包裝: 50
接片: 128
電阻(歐姆): 100k
電路數(shù): 1
溫度系數(shù): 標準值 800 ppm/°C
存儲器類型: 易失
接口: 4 線串行(芯片選擇,遞增,增/減)
電源電壓: 2.7 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 8-TSSOP,8-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 8-MSOP
包裝: 管件
AD5220
–4–
REV.
–Typical Performance Characteristics
PERCENT
OF
NOMINAL
END-TO-END
RESISTANCE
%
R
AB
100
75
0
32
128
64
96
50
25
RWB
RWA
CODE – Decimal
Figure 4. Wiper to End Terminal
Resistance vs. Code
CODE – Decimal
RDNL
LSB
0.5
–0.5
0
16
128
32
48
64
80
96
112
0.4
0.1
0.0
–0.2
–0.4
0.3
0.2
–0.1
–0.3
TA = +25 C
VDD = +5.5V
50k
VERSION
10k
VERSION
100k
VERSION
Figure 7. R-DNL Relative Resistance
Step Position Nonlinearity Error vs.
Code
CODE – Decimal
DNL
LSB
0.5
–0.5
0
16
128
32
48
64
80
96
112
0.4
0.1
0.0
–0.2
–0.4
0.3
0.2
–0.1
–0.3
50k
VERSION
10k
VERSION
100k
VERSION
TA = +25 C
VDD = +5.5V
VA = +5.5V
VB = 0V
Figure 10. Potentiometer Divider
DNL Error vs. Code
CONDUCTION CURRENT, IWB – A
V
WB
V
6
0
20
120
40
60
80
100
5
4
3
2
1
VDD = 5.5V
RAB = 50k
7FH
08H
01H
02H
04H
10H
20H
40H
Figure 5. Resistance Linearity vs.
Conduction Current
CODE – Decimal
RINL
LSB
0.5
–0.5
0
16
128
32
48
64
80
96
112
0.4
0.1
0.0
–0.2
–0.4
0.3
0.2
–0.1
–0.3
TA = +25 C
VDD = +5.5V
50k
VERSION
10k
VERSION
100k
VERSION
Figure 8. R-INL Resistance Non-
linearity Error vs. Supply Voltage
SUPPLY VOLTAGE – V
POTENTIOMETER
DIVIDER
NONLINEARITY
LSB
0.600
0.000
2.00 2.50
6.00
3.00 3.50 4.00 4.50 5.00 5.50
0.525
0.300
0.255
0.150
0.075
0.450
0.375
CODE = 40H
RAB = 50k
VA = VDD
Figure 11. Potentiometer Divider
INL Error vs. Supply Voltage
WIPER RESISTANCE –
FREQUENCY
48
24
0
20
40
32
16
8
28
36
44
52
60
SS = 300 UNITS
VDD = +2.7V
TA = +25 C
Figure 6. Wiper Contact Resistance
CODE – Decimal
INL
LSB
0.5
–0.5
0
16
128
32
48
64
80
96
112
0.4
0.1
0.0
–0.2
–0.4
0.3
0.2
–0.1
–0.3
TA = +25 C
VDD = +5.5V
VA = +5.5V
VB = 0V
50k
VERSION
10k
VERSION
100k
VERSION
Figure 9. Potentiometer Divider INL
Error vs. Code
TEMPERATURE – C
NOMINAL
END-TO-END
RESISTANCE
k
100
80
0
–40
–15
85
10
35
60
40
20
100k
VERSION
50k
VERSION
10k
VERSION
Figure 12. Nominal Resistance vs.
Temperature
A
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