参数资料
型号: MCP4011T-503E/MS
厂商: Microchip Technology
文件页数: 32/54页
文件大小: 0K
描述: IC DGTL POT 50K 1CH 8MSOP
标准包装: 2,500
接片: 64
电阻(欧姆): 50k
电路数: 1
温度系数: 标准值 150 ppm/°C
存储器类型: 易失
接口: 2 线串行(芯片选择,增/减)
电源电压: 1.8 V ~ 5.5 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
供应商设备封装: 8-MSOP
包装: 带卷 (TR)
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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