AD5227 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

AD5227
Manufacturer

ADI
ChipWorker Part#

CW1205335188
Description

64Position Digital Up/Down Control Potentiometer
Documentation

Datasheet

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AD5227 Specifications

Attribute	Attribute Value

Part Number	AD5227
Manufacturer	ADI
ChipWorker Part#	CW1205335188
Documentation	Datasheet
	expand all
Product Lifecycle Status	Active

Product Description

Product Details
The AD5227 is Analog Devices’ latest 64-step up/down control digital potentiometer1. 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
1RWA increments if RWB decrements and vice versa.
### 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

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- Anti-static packaging
- Anti-vibration foam
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- Surface testing

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