Datasheet Microchip MCP4251T-502E/ML — 数据表

MCP413X/415X/423X/425X
7/8-Bit Single/Dual SPI Digital POT with Volatile Memory
Features Description Single or Dual Resistor Network options Potentiometer or Rheostat configuration options Resistor Network Resolution
-7-bit: 128 Resistors (129 Steps)
-8-bit: 256 Resistors (257 Steps) RAB Resistances options of:
-5 kΩ
-10 kΩ
-50 kΩ
-100 kΩ Zero Scale to Full-Scale Wiper operation Low Wiper Resistance: 75Ω (typical) Low Tempco:
-Absolute (Rheostat): 50 ppm typical
(0В°C to 70В°C)
-Ratiometric (Potentiometer): 15 ppm typical SPI Serial Interface (10 MHz, modes 0,0 & 1,1)
-High-Speed Read/Writes to wiper registers
-SDI/SDO multiplexing (MCP41X1 only) Resistor Network Terminal Disconnect Feature
via:
-Shutdown pin (SHDN)
-Terminal Control (TCON) Register Brown-out reset protection (1.5V typical) Serial Interface Inactive current (2.5 uA typical) High-Voltage Tolerant Digital Inputs: Up to 12.5V Supports Split Rail Applications Internal weak pull-up on all digital inputs Wide Operating Voltage:
-2.7V to 5.5V -Device Characteristics
Specified
-1.8V to 5.5V -Device Operation Wide Bandwidth (-3 dB) Operation:
-2 MHz (typical) for 5.0 kΩ device Extended temperature range (-40°C to +125°C) The MCP41XX and MCP42XX devices offer a wide
range of product offerings using an SPI interface. This
family of devices support 7-bit and 8-bit resistor …