Datasheet > AD5122AWBCPZ10-RL7

AD5122AWBCPZ10-RL7

更新时间： 2024-11-20 01:22:31

品牌	Logo	应用领域
亚德诺 - ADI		转换器电阻器
页数	文件大小	规格书
32页	768K
描述
Dual Channel, 128-/256-Position, I2C, Nonvolatile Digital Potentiometer

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Dual Channel, 128-/256-Position, I²C,

Nonvolatile Digital Potentiometer

Data Sheet

AD5122A/AD5142A

FEATURES

FUNCTIONAL BLOCK DIAGRAM

LOGIC

INDEP

10 kΩ and 100 kΩ resistance options

Resistor tolerance: 8% maximum

Wiper current: 6 mA

Low temperature coefficient: 35 ppm/°C

Wide bandwidth: 3 MHz

POWER-ON

RESET

AD5122A/

AD5142A

RDAC1

INPUT

Fast start-up time < 75 µs

Linear gain setting mode

RESET

SCL

SERIAL

INTERFACE

RDAC2

Single- and dual-supply operation

Independent logic supply: 1.8 V to 5.5 V

Wide operating temperature: −40°C to +125°C

3 mm × 3 mm package option

SDA

ADDR1

ADDR0

7/8

INPUT

EEPROM

MEMORY

Qualified for automotive applications

APPLICATIONS

GND

Portable electronics level adjustment

LCD panel brightness and contrast controls

Programmable filters, delays, and time constants

Programmable power supplies

Figure 1.

GENERAL DESCRIPTION

The AD5122A/AD5142A potentiometers provide a nonvolatile

solution for 128-/256-position adjustment applications, offering

guaranteed low resistor tolerance errors of 8% and up to 6 mA

current density in the Ax, Bx, and Wx pins.

Table 1. Family Models

Model

Channel Position Interface Package

AD5123¹

AD5124

AD5143¹

AD5144

Quad

128

256

128

256

128

256

I²C

LFCSP

TSSOP

LFCSP

TSSOP

LFCSP/TSSOP

LFCSP

SPI/I²C

SPI

The low resistor tolerance and low nominal temperature coefficient

simplify open-loop applications as well as applications requiring

tolerance matching.

I²C

SPI/I²C

SPI

I²C

SPI

I²C

SPI

I²C

SPI/I²C

The linear gain setting mode allows independent programming

of the resistance between the digital potentiometer terminals,

through R_AWand R_WBthe string resistors, allowing very accurate

resistor matching.

AD5144A Quad

AD5122 Dual

AD5122A Dual

AD5142 Dual

AD5142A Dual

The high bandwidth and low total harmonic distortion (THD)

ensure optimal performance for ac signals, making it suitable

for filter design.

AD5121

AD5141

Single

LFCSP

The low wiper resistance of only 40 Ω at the ends of the resistor

array allows for pin-to-pin connection.

¹Two potentiometers and two rheostats.

The wiper values can be set through an I²C-compatible digital

interface that is also used to read back the wiper register and

EEPROM contents.

The AD5122A/AD5142A are available in a compact, 16-lead,

3 mm × 3 mm LFCSP and a 16-lead TSSOP. The parts are

guaranteed to operate over the extended industrial temperature

range of −40°C to +125°C.

Rev. B

Document Feedback

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

rightsof third parties that may result fromits 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 andregisteredtrademarks are the property of their respective owners.

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

Technical Support

www.analog.com

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与AD5122AWBCPZ10-RL7相关器件

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AD5122BCPZ10-RL7	ADI	获取价格	The AD5122/AD5142 potentiometers provides a n
AD5122BRUZ10	ADI	获取价格	The AD5122/AD5142 potentiometers provides a n
AD5122BRUZ100	ADI	获取价格	The AD5122/AD5142 potentiometers provides a n
AD5122BRUZ100-RL7	ADI	获取价格	The AD5122/AD5142 potentiometers provides a n
AD5122BRUZ10-RL7	ADI	获取价格	The AD5122/AD5142 potentiometers provides a n
AD5122WBCPZ10-RL7	ADI	获取价格	Dual Channel, 128-/256-Position, SPI, Nonvolatile Digital Potentiometer
AD5122WBRUZ10-RL7	ADI	获取价格	Dual Channel, 128-Position, SPI, Nonvolatile Digital Potentiometer
AD5123	ADI	获取价格	Quad Channel, 128-/256-Position, I2C Nonvolatile Digital Potentiometer
AD51231	ADI	获取价格	Quad Channel, 128-/256-Position, I2C Nonvolatile Digital Potentiometer

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