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MIKROE-3309, Click Board, Waveform Click7/15/2019
Overview
Features and Benefits
- 64-position digital potentiometer
- 10 kΩ, 50 kΩ, 100 kΩ end-to-end terminal resistance
- Simple up/down digital or manual configurable control
- Midscale preset
- Low potentiometer mode tempco = 10 ppm/°C
- Low rheostat mode tempco = 35 ppm/°C
- Ultralow power, IDD = 0.4 μA typ and 3 μA max
- Fast adjustment time, ts = 1 μs
- Chip select enable multiple device operation
- Low operating voltage, 2.7 V to 5.5 V
- Automotive temperature range, −40°C to +105°C
- Compact thin SOT-23-8 (2.9 mm × 3 mm) Pb-free package
Product Details
The AD5227 is Analog Devices’ latest 64-step up/down control digital potentiometer. This device performs the same electronic adjustment function as a 5 V potentiometer or variable resistor. Its simple 3-wire up/down interface allows manual switching or high speed digital control. The AD5227 presets to midscale at power-up. When CS is enabled, the devices changes step at every clock pulse. The direction is determined by the state of the U/D pin (see ). The interface is simple to activate by any host controller, discrete logic, or manually with a rotary encoder or pushbuttons. The AD5227’s 64-step resolution, small footprint, and simple interface enable it to replace mechanical potentiometers and trimmers with typically 6× improved resolution, solid-state reliability, and design layout flexibility, resulting in a considerable cost savings in end users’ systems.
The AD5227 is available in a compact thin SOT-23-8 (TSOT-8) Pb-free package. The part is guaranteed to operate over the automotive temperature range of −40°C to +105°C.
Users who consider EEMEM potentiometers should refer to some recommendations in the Applications section.
APPLICATIONS
- Mechanical potentiometer and trimmer replacements
- LCD backlight, contrast, and brightness controls
- Portable electronics level adjustment
- Programmable power supply
- Digital trimmer replacements
- Automatic closed-loop control
Product Categories
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)
Documentation & Resources
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AD5227: 64-Position Up/Down Control Digital Potentiometer Data Sheet (Rev. B)5/14/2009PDF331 kB
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AN-1291: Digital Potentiometers: Frequently Asked Questions8/18/2020
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AN-686: Implementing an I2C® Reset (Rev. 0)12/16/2003PDF44 kB
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AN-711: ADN2847 AC-Coupled Optical Evaluation Kit (Rev. 0)1/1/2000PDF877 kB
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FAQs7/26/2017
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Choosing the Correct digiPOT for Your Application6/7/2013PDF311 K
Design Resources
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.
PCN-PDN Information
Support & Discussions
AD5227 Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku 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. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
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