Microchip | MCP4551-103E/MS

The MCP45XX and MCP46XX devices offer a wide range of product offerings using an I2C™Compatible interface.

This family of devices support 7-bit and 8-bit resistor networks, Non-Volatile memory configurations, and Potentiometer and Rheostat pinouts. WiperLock Technology allows application-specific calibration settings to be secured in the EEPROM.  

Features:

• 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 (typ.)
• Low Tempco:
• Absolute (Rheostat): 50 ppm typical (0°C to 70°C)
• Ratiometric (Potentiometer): 15 ppm typical
• Non-volatile Memory
• Automatic Recall of Saved Wiper Setting
• WiperLock™ Technology
• 10 General Purpose Memory Locations
• I2C™Compatible Serial interface
• 100 kHz, 400 kHz and 3.4 MHz support
• Serial protocol allows:
• High-Speed Read/Write to wiper
• Read/Write to EEPROM
• Write Protect to be enabled/disabled
• WiperLock to be enabled/disabled
• Resistor Network Terminal Disconnect Feature via the Terminal Control (TCON) Register
• Write Protect Feature:
• Hardware Write Protect (WP) Control pin
• Software Write Protect (WP) Configuration bit
• Brown-out reset protection (1.5 V typical)
• Serial Interface Inactive current (2.5 uA typ.)
• High-Voltage Tolerant Digital Inputs: Up to 12.5 V
• Wide Operating Voltage:
• 2.7 V to 5.5 V - Device Characteristics Specified
• 1.8 V to 5.5 V - Device Operation
• Wide Bandwidth (-3dB) Operation:
• 2 MHz (typ.) for 5.0 kΩ device
• Extended temperature range (-40°C to +125°C)