Datasheet > DS1844

DS1844

更新时间： 2024-11-22 22:50:47

品牌	Logo	应用领域
达拉斯 - DALLAS		电位器
页数	文件大小	规格书
14页	292K
描述
Quad Digital Potentiometer

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DS1844 数据手册

DS1844

Quad Digital Potentiometer

www.dalsemi.com

FEATURES

PIN ASSIGNMENT

§ Four independent, digitally controlled 64-

position potentiometers

§ Two interface control options

V_CC

5-wire serial

2-wire addressable

§ Standard resistance values

DS1844-010 10 kW

DS1844-050 50 kW

DS1844-100 100 kW

R/W, A0

A2, RST

GND

SCL, CLK

SDA, D_IN

A1, D_OUT

§ Mixed resistor value combinations (contact

factory for availability)

§ Operating Temperature Range

- Industrial: -40°C to +85°C

20-Pin DIP (300-mil)

Device Description

20-Pin SOIC (300-mil)

20-Pin TSSOP (173-mil)

PIN DESCRIPTION

V_CC

- 2.7V to 5.5V

- Port Select

A0, A1, A2 - Device Select Pins (2-Wire)

SDA

SCL

- Serial Data I/O (2-Wire)

- Serial Clock (2-Wire)

- Read/Write enable (5-Wire)

- Serial Port Reset Input (5-Wire)

- Serial Port Data Input (5-Wire)

- Serial Port Clock Input (5-Wire)

- Cascade Data Output (5-Wire)

- High-end Terminal of Pot

- Low-end Terminal of Pot

- Wiper Terminal of Pot

RST

D_IN

CLK

D_OUT

H₀-H₃

L₀-L₃

W₀-W₃

GND

- Ground

DESCRIPTION

The DS1844 Quad Digital Potentiometer is a four-channel, digitally controlled linear potentiometer. Each

potentiometer is comprised of 63 equi-resistive sections and has three terminals accessible to the user.

These include the high side terminals, H_X, the wiper terminals, W_X, and the low-side terminals, L_X.The

wiper position on the resistor ladder is selected via an 8-bit register value. Communication and control of

the device are supported by two types of serial interface. These include a 5-wire I/O shift register

interface and a 2-wire addressable interface.

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与DS1844相关器件

型号	品牌	获取价格	描述	数据表
DS1844_05	DALLAS	获取价格	Quad Digital Potentiometer
DS1844-010	DALLAS	获取价格	Quad Digital Potentiometer
DS1844-010+	MAXIM	获取价格	QUAD 10K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 64 POSITIONS, PDIP20, 0.3
DS1844-050	DALLAS	获取价格	Quad Digital Potentiometer
DS1844-10	ETC	获取价格	Digital Potentiometer
DS1844-100	DALLAS	获取价格	Quad Digital Potentiometer
DS1844-100	MAXIM	获取价格	Digital Potentiometer, 4 Func, 100000ohm, 2-wire Serial Control Interface, 64 Positions, C
DS1844-100E	DALLAS	获取价格	Digital Potentiometer, CMOS, PDSO20,
DS1844-100S	ETC	获取价格	Digital Potentiometer
DS1844-10E	DALLAS	获取价格	Digital Potentiometer, CMOS, PDSO20,