- Overview
- Features & Applications
- Diagram
- Buy Now
Overview
Designed for open-loop applications and systems that demand precision calibration and tolerance matching, the AD5292 consists of three single-channel, 10-bit programmable DigiPOTs that feature less than one percent end-to-end resistor tolerance (RTol) error over a wide ±15V supply range. The best-in-class resistor matching of the AD5292 allows users to take full advantage of up to 1024 tap adjustments to more precisely adjust and trim electronic circuits for improved overall system performance.
The AD5292 is manufactured on Analog Devices iCMOS® (industrial CMOS) modular manufacturing process, which combines high-voltage CMOS and bipolar technologies to enable the device to support dual power supplies in the ±10.5V to ±16.5V range and single supply operation in the 21V to 33V range. The 1024-tap AD5292 digiPot features a 20-times-programmable memory. The wiper setting of these two devices is controlled through an SPI (serial peripheral interface)-compatible port. An internal fuse is blown to permanently save the wiper position. Triggered by a simple software command, no external power supply is required to program the device, saving cost and PCB area. |
Features
- Single-channel, 256-/1024-position resolution
- 20kΩ nominal resistance
- Calibrated ±1% nominal resistor tolerance (resistor performance mode)
- 20-time programmable (20-TP) set-and-forget resistance setting allows multiple time permanent programming
- Rheostat mode temperature coefficient: 35ppm/°C
- Voltage divider temperature coefficient: 5ppm/°C
- +21V -> +33V single-supply operation
- ±10.5V -> ±16.5V dual-supply operation
- SPI-compatible 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
 |
Functional Block Diagram
 |
Digi-Key
Part Number |
ADI
Part Number |
# of
Circuits |
Resistance In Ohms |
Taps |
Voltage - Supply |
Package / Case |
|
AD5292BRUZ-20 |
1 |
20K |
1024 |
9V ~ 33V,
±9V ~ 16.5V |
14-TSSOP |
Digi-Key
Part Number |
ADI
Part Number |
# of
Circuits |
Resistance In Ohms |
Taps |
Voltage - Supply |
Package / Case |
|
AD5291BRUZ-20 |
1 |
20K |
256 |
9V ~ 33V,
±9V ~ 16.5V |
14-TSSOP |
|
