The CS pin is High-Voltage (V
參數(shù)資料
型號: MCP4011T-503E/MC
廠商: Microchip Technology
文件頁數(shù): 32/54頁
文件大?。?/td> 0K
描述: IC DGTL POT 50K 1CH 8DFN
標(biāo)準(zhǔn)包裝: 1
接片: 64
電阻(歐姆): 50k
電路數(shù): 1
溫度系數(shù): 標(biāo)準(zhǔn)值 150 ppm/°C
存儲器類型: 易失
接口: 2 線串行(芯片選擇,增/減)
電源電壓: 1.8 V ~ 5.5 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 8-VFDFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 8-DFN(2x3)
包裝: 標(biāo)準(zhǔn)包裝
其它名稱: MCP4011T-503E/MCDKR
MCP4011/2/3/4
DS21978C-page 38
2006 Microchip Technology Inc.
5.3
CS High Voltage
The CS pin is High-Voltage (VIHH) tolerant, like the
MCP402X. This allows the MCP401X to be used in
MCP402X applications without needing to change
other portions of the application circuit.
6.0
RESISTOR
Digital potentiometer applications can be divided into
two categories:
Rheostat configuration
Potentiometer (or voltage divider) configuration
Figure 6-1 shows a block diagram for the MCP401X
resistors.
FIGURE 6-1:
Resistor Block Diagram.
Step resistance (RS) is the resistance from one tap
setting to the next. This value will be dependent on the
RAB value that has been selected. Table 6-1 shows the
typical step resistances for each device.
The total resistance of the device has minimal variation
due to operating voltage (see Figure 2-11, Figure 2-24,
TABLE 6-1: TYPICAL STEP RESISTANCES
Terminal A and B, as well as the wiper W, do not have
a polarity. These terminals can support both positive
and negative current.
RS
A
RS
B
N = 63
N = 62
N = 61
N = 1
N = 0
RW (1)
W
01h
Analog
Mux
RW (1)
00h
RW (1)
3Dh
RW (1)
3Eh
RW (1)
3Fh
Note 1: The wiper resistance is tap dependent.
That is, each tap selection resistance
has a small variation. This variation
effects the smaller resistance devices
(2.1 k
Ω) more.
Part Number
Typical Resistance (
Ω)
Total (RAB)
Step (RS)
MCP401X-203E
2100
33.33
MCP401X-503E
5000
79.37
MCP401X-104E
10000
158.73
MCP401X-504E
50000
793.65
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