參數(shù)資料
型號(hào)： MCP42050T
廠商： Microchip Technology Inc.
元件分類(lèi)： 數(shù)字電位計(jì)
英文描述： Single/Dual Digital Potentiometer with SPI⑩ Interface
中文描述： 單/雙數(shù)字電位器接口與SPI⑩
文件頁(yè)數(shù)： 10/33頁(yè)
文件大?。?/td> 682K
代理商： MCP42050T
MCP41XXX/42XXX
DS11195C-page 10
2003 Microchip Technology Inc.
Note:
Unless otherwise indicated, curve represents 10 k
, 50 k
and 100 k
devices, V
DD
= 5V, V
SS
= 0V, T
A
= +25°C,
V
B
= 0V.
FIGURE 2-19:
50k
Potentiometer.
Gain vs. Frequency for
FIGURE 2-20:
100k
Potentiometer.
Gain vs. Frequency for
FIGURE 2-21:
-3 dB Bandwidths.
FIGURE 2-22:
Ratio vs. Frequency.
Power Supply Rejection
FIGURE 2-23:
Voltage.
10 k
Wiper Resistance vs.
FIGURE 2-24:
Resistance vs. Voltage.
50 k
& 100 k
Wiper
-60
-54
-48
-42
-36
-30
-24
-18
-12
-6
0
6
Frequency (Hz)
G
C
L
= 30pF, Refer to Figure 2-29
MCP41050, MCP42050 (50k
potentiometers)
Code = FFh
Code = 80h
Code = 40h
Code = 20h
Code = 10h
Code = 08h
Code = 04h
Code = 02h
Code = 01h
100
1k
10k
100k
1M
10M
-60
-54
-48
-42
-36
-30
-24
-18
-12
-6
0
6
Frequency (Hz)
G
C
L
= 30pF, Refer to Figure 2-29
MCP41100, MCP42100 (100k
potentiometers)
Code = FFh
Code = 80h
Code = 40h
Code = 20h
Code = 10h
Code = 08h
Code = 04h
Code = 02h
Code = 01h
100
1k
10k
100k
1M
-36
-30
-24
-18
-12
-6
0
Frequency (Hz)
G
279 kHz
145 kHz
1.06 MHz
10 k
50 k
100 k
C
L
= 30 pF, Code = 80h
Refer to Figure 2-29
1k
10k
100k
1M
10M
0
5
10
15
20
25
30
35
40
Frequency (Hz)
P
100 k
Potentiometer
50 k
Potentiometer
10 k
Potentiometer
V
DD
= 4.5V to 5.5V,
Code = 80h,
C
L
= 27 pF,
V
A
= 4V
Refer to Figure 2-28
1k
10k
100k
1M
10M
0
100
200
300
400
500
600
700
0
1
2
3
4
5
Terminal B Voltage (V)
W
)
MCP41010, MCP42010
Iw = 1 mA, Code = 00h,
Refer to Figure 2-27
V
DD
= 2.7V
V
DD
= 5V
0
50
100
150
200
250
300
350
400
450
0
1
2
3
4
5
Terminal B Voltage (V)
W
)
V
DD
= 2.7V
V
DD
= 5V
Code = 00h
Refer to Figure 2-27
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