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说明

MCP443X设备是四通道、易失性、7位（129步）数字电位计，带有I^2.C兼容接口。MCP443X系列提供端到端电阻值为5K岛、10K岛、50k岛和100K岛。这些设备提供了多种配置，简化了设计，同时最大限度地降低了成本、封装尺寸和引脚数量。

特性

• Quad Resistor Network
• Potentiometer or Rheostat configuration options
• 7-bit – 128 Resistors (129 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)
• Package Types: 4x4 QFN-20, TSSOP-20

参数