Datasheet > AD5227BUJZ100-R22

AD5227BUJZ100-R22

更新时间： 2024-11-28 22:17:35

品牌	Logo	应用领域
亚德诺 - ADI		电位器
页数	文件大小	规格书
16页	331K
描述
64-Position Up/Down Control Digital Potentiometer

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64-Position Up/Down

Control Digital Potentiometer

AD5227

FEATURES

64-position digital potentiometer

FUNCTIONAL BLOCK DIAGRAM

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, I_DD= 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

AD5227

6-BIT UP/DOWN

CONTROL

LOGIC

U/D

CLK

GND

POR

MIDSCALE

WIPER

Figure 1.

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

GENERAL DESCRIPTION

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

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.

power-up. When

is enabled, the devices changes step at

Table 1. Truth Table

every clock pulse. The direction is determined by the state of

the U/ pin (see Table 1). The interface is simple to activate by

CLK

↓

Operation¹

U/D

R_WBDecrement

R_WBIncrement

No Operation

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.

¹R_WAincrements if R_WBdecrements and vice versa.

¹The terms digital potentiometer and RDAC are used interchangeably.

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable.

However, no responsibility is assumed by Analog Devices for its use, nor for any

infringements of patents or other rights of third parties that may result from its use.

Specifications subject to change without notice. No license is granted by implication

or otherwise under any patent or patent rights of Analog Devices. Trademarks and

registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.326.8703

www.analog.com

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与AD5227BUJZ100-R22相关器件

型号	品牌	获取价格	描述	数据表
AD5227BUJZ100-R7	ADI	获取价格	IC 100K DIGITAL POTENTIOMETER, INCREMENT/DECREMENT CONTROL INTERFACE, 64 POSITIONS, PDSO8,
AD5227BUJZ100-RL7	ADI	获取价格	64-Position Up/Down Control Digital Potentiometer
AD5227BUJZ100-RL72	ADI	获取价格	64-Position Up/Down Control Digital Potentiometer
AD5227BUJZ10-R2	ADI	获取价格	64-Position Up/Down Control Digital Potentiometer
AD5227BUJZ10-R22	ADI	获取价格	64-Position Up/Down Control Digital Potentiometer
AD5227BUJZ10-R7	ADI	获取价格	IC 10K DIGITAL POTENTIOMETER, INCREMENT/DECREMENT CONTROL INTERFACE, 64 POSITIONS, PDSO8,
AD5227BUJZ10-RL7	ADI	获取价格	64-Position Up/Down Control Digital Potentiometer
AD5227BUJZ10-RL72	ADI	获取价格	64-Position Up/Down Control Digital Potentiometer
AD5227BUJZ50	ADI	获取价格	IC 50K DIGITAL POTENTIOMETER, INCREMENT/DECREMENT CONTROL INTERFACE, 64 POSITIONS, PDSO8,
AD5227BUJZ50-R2	ADI	获取价格	64-Position Up/Down Control Digital Potentiometer

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