Features and Benefits
- 256 position
- 10 kΩ, 50 kΩ, 100 kΩ
- +20 V to +30 V single-supply operation
- ±10 V to ±15 V dual-supply operation
- 3-wire SPI®-compatible serial interface
- Low temperature coefficient 35 ppm/°C typical
- THD 0.006% typical
- Midscale preset
- Compact MSOP-10 package
- Automotive temperature range: −40°C to +125°C
- iCMOS™ process technology
The AD5290 is one of the few high voltage, high performance, and compact digital potentiometers1 in the market at present. This device can be used as a programmable resistor or resistor divider. The AD5290 performs the same electronic adjustment function as mechanical potentiometers, variable resistors, and trimmers, with enhanced resolution, solid-state reliability, and superior temperature stability.
With digital rather than manual control, the AD5290 provides layout flexibility and allows closed-loop dynamic controllability.
The AD5290 is available in MSOP-10 package and has 10 kΩ, 50 kΩ, and 100 kΩ options. All parts are guaranteed to operate over the –40°C to +125°C extended automotive temperature range.
- High voltage DAC
- Programmable power supply
- Programmable gain and offset adjustment
- Programmable filters and delays
- Actuator control
- Audio volume control
- Mechanical potentiometer replacement
1 The RDAC segmentation is protected by U.S. Patent Number 5,495,245.
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
The user guide describes the full featured EVAL-AD5290DBZ board for evaluating the AD5290 digital potentiometer. The AD5290 is a single-channel, 256-position with high voltage, high performance, and compact digital potentiometers. The AD5290 is capable of operating at high voltages, supporting both dual supply (±10 V to ±15 V) and single supply (20 V to 30 V) operation.
The AD5290 uses a versatile 3-wire serial interface that operates at clock rates of up to 4 MHz and is compatible with the standard serial peripheral interface (SPI).
The EVAL-AD5290DBZ incorporates an internal power supply from the USB and allows an external power supply for the logic voltage levels. The EVAL-AD5290DBZ can operate in single supply and dual supply modes, and incorporates an output buffer.
Complete specifications for the AD5290 can be found in the AD5290 data sheet available from Analog Devices, Inc., and must be consulted in conjunction with the user guide when using the evaluation board.
Features & Benefits
- Full featured evaluation board in conjunction with high voltage digital potentiometer motherboard (EVAL-MB-HV-SDZ)
- PC control via SDP-B or SDP-S
- PC software for control
Software & Systems Requirements
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.