Microchip Technology MCP4017/MCP4018/MCP4019 I2C Digital Potentiometers
Microchip Technology MCP4017, MCP4018, and MCP4019 I2C Digital Potentiometers provide the advantages of low-power consumption and digital control. The MCP4017, MCP4018, and MCP4019 Potentiometers are controlled digitally through an I2C interface. This eliminates the need for human interaction and increases system reliability, accuracy, and flexibility while keeping costs low. These devices also feature low static current consumption of just 2.5mA to extend battery life in a variety of consumer and industrial applications. The Microchip Technology MCP4017, MCP4018, and MCP4019 are available in 5- and 6-pin SC-70 packages.
Features
- Potentiometer or rheostat configuration options
- 7-bit resistor network resolution
- 127 resistors (128 Steps)
- Zero scale to full-scale wiper operation
- RAB resistances 5kΩ, 10kΩ, 50kΩ, or 100kΩ
- Low wiper resistance 100Ω (typical)
- Low Tempco:
- Absolute (rheostat) 50ppm (typical) (0°C to 70°C)
- Ratiometric (potentiometer) 10ppm (typical)
- Simple I2C protocol with read and write commands
- Brown-out reset protection (1.5V typical)
- Power-on default wiper setting (Mid-scale)
- Low-power operation:
- 2.5µA static current (typical)
- Wide operating voltage range:
- 2.7V to 5.5V - device characteristics specified
- 1.8V to 5.5V - device operation
Applications
- Systems calibration
- Electronics level settings
- Mechanical trimmer replacement in new designs
- Permanent factory printed circuit board (PCB) setting
- Transducer adjustment of pressure, temperature, position, chemical, and optical sensors
- RF amplifier biasing
- Gain control and offset adjustments
MCP401x Block Diagram
Publicado: 2009-05-07
| Actualizado: 2025-06-13