标题: MCP41/42XX DataSheet [打印本页] 作者: admin 时间: 2010-4-17 17:48 标题: MCP41/42XX DataSheet 7/8-Bit Single/Dual SPI Digital POT with Volatile Memory
The MCP41/42XX devices are non-volatile, 7-bit (129 wiper steps) digital potentiometers that are programmed/reprogrammed through an SPI compatible interface. The MCP41/42XX devices offer a variety of configurations simplifying design while minimizing cost, package size and pin count. The MCP41/42XX family of devices are available with resistor values of 5KΩ, 10KΩ, 50k and 100KΩ.
Parameter Name Value
Temp. Range (°C) -40 to +125
Volatile / Non Volatile Volatile
Number of Taps 129
Resistance (ohms) K 10,100,5,50
# per Package 1
INL (Max) 0.5
DNL (Max) 0.25
Interface SPI
Features
7-bit: 128 Resistors with Taps to VSS and VDD
SPI compatible interace
Automatic Recall of Potentiometer Wiper Settings
Resistance Values: 5kΩ, 10kΩ, 50kΩ, 100kΩ
Low Tempco:
- Absolute (Rheostat): <100 ppm (typ.)
- Ratiometric (Potentiometer): <10 ppm (typ.)
Low Wiper Resistance: 100Ω (typ.)
Low-Power Operation: 1μA Max Static Current
Wide Operating Voltage: 1.8V to 5.5V
Extended Temperature Range: -40°C to +125°C
