Analog Devices Inc. AD5204 & AD5206 Digital Potentiometers
Analog Devices Inc. AD5204 (4-Channel) and AD5206 (6-Channel) Digital Potentiometers are 256-position digitally controlled variable resistor devices. Potentiometers are three-terminal resistors with sliding or rotating contacts that forms an adjustable voltage divider. If two terminals are used (one end and the wiper), the potentiometer acts as a variable resistor. Each channel of the Analog Devices AD5204/AD5206 devices contain a fixed resistor with a wiper contact that taps the fixed resistor value at a point determined by a digital code loaded into the SPI-compatible serial-input register. The devices are used in mechanical potentiometer replacement; programmable filters, delays, and time constants; and line impedance matching. The devices are designed for PCB mounts.
Features
- 256 positions
- 10kΩ, 50kΩ, 100kΩ terminal resistance
- 3-wire SPI-compatible serial data input
- +2.7V to +5.5V single-supply operation; ±2.7 V dual-supply
- 700PPM (parts per million)/°C temperature coefficient
- 12uA operating supply current
- -40°C to +85°C operating temperature range
Applications
- Mechanical potentiometer replacement
- Instrumentation: gain, offset adjustment
- Programmable voltage-to-current conversion
- Programmable filters, delays, time constants
- Line impedance matching
Functional Block Diagrams
Published: 2019-06-26
| Updated: 2022-03-10