Catalog
8-Bit Quad Digital POT with I2C™
Key Features
• * Quad Resistor Network
• * Potentiometer or Rheostat configuration options
• * 8-bit – 256 Resistors (257 Taps)
• * 5kΩ
• * 10kΩ
• * 50kΩ
• * 100kΩ
• * Zero-scale to Full-scale Wiper Operation
• * Low Wiper Resistance – 75Ω typical
• * Absolute (Rheostat) – 50 ppm typical (0°-70°C)
• * Ratiometric (Potentiometer) – 15 ppm typical
• * 100 kHz
• * 400 kHz
• * 3.4 MHz
• * Serial Protocol Allows High-Speed Read/Write to Wiper
• * Resistor Network Terminal Disconnect Feature via Terminal Control (TCON) Register
• * Reset Input Pin
• * 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
• * 2.7V to 5.5V - Device Characteristics Specified
• * 1.8V to 5.5V - Device Operation
• * Wide Bandwidth (-3 dB) Operation – 2 MHz typical for 5.0Ω Device
• * Extended Temperature Range (-40°C to +125°C)
• * Three Package Types: TSSOP-14
• * AEC-Q100 Grade 1 quarlified
Description
AI
The MCP445X devices are quad-channel, volatile, 8-bit (257 wiper steps) digital potentiometers with an I2C compatible interface. The MCP445X family is available with end-to-end resistor values of 5KΩ, 10KΩ, 50kΩ and 100KΩ. These devices offer a variety of configurations simplifying design while minimizing cost, package size and pin count.