AD5291
AD5291 is Digital Potentiometer manufactured by Analog Devices.
FEATURES
FUNCTIONAL BLOCK DIAGRAM
- Single-channel, 256-/1024-position resolution
- 20 kΩ, 50 kΩ, and 100 kΩ nominal resistance
- Maximum ±1% nominal resistor tolerance error (resistor perform- ance mode)
- 20-times programmable wiper memory
- Rheostat mode temperature coefficient: 35 ppm/°C
- Voltage divider temperature coefficient: 5 ppm/°C
- +9 V to +33 V single-supply operation
- ±9 V to ±16.5 V dual-supply operation
- SPI-patible serial interface
- Wiper setting readback
- Power-on refreshed from 20-TP memory
APPLICATIONS
- Mechanical potentiometer replacement
- Instrumentation: gain and offset adjustment
- Programmable voltage-to-current conversion
- Programmable filters, delays, and time constants
- Programmable power supply
- Low resolution DAC replacement
- Sensor calibration
VLOGIC SCLK SYNC DIN SDO RDY
VDD POWER-ON
RESET
RESET
AD5291/ AD5292
RDAC
REGISTER
SERIAL DATA
INTERFACE
MEMORY
BLOCK
EXT_CAP GND
Figure...
