Datasheet > MCP42100T-IST

MCP42100T-IST

更新时间： 2024-11-02 00:38:47

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美国微芯 - MICROCHIP		/
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32页	689K
描述
Single/Dual Digital Potentiometer with SPI Interface

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中文翻译

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MCP42100T-IST 数据手册

MCP41XXX/42XXX

Single/Dual Digital Potentiometer with SPI^™Interface

Features

Description

• 256 taps for each potentiometer

The MCP41XXX and MCP42XXX devices are 256-

position, digital potentiometers available in 10 kΩ,

50 kΩ and 100 kΩ resistance versions. The

MCP41XXX is a single-channel device and is offered in

an 8-pin PDIP or SOIC package. The MCP42XXX con-

tains two independent channels in a 14-pin PDIP, SOIC

or TSSOP package. The wiper position of the

MCP41XXX/42XXX varies linearly and is controlled via

an industry-standard SPI interface. The devices con-

sume <1 µA during static operation. A software shut-

down feature is provided that disconnects the “A”

terminal from the resistor stack and simultaneously con-

nects the wiper to the “B” terminal. In addition, the dual

MCP42XXX has a SHDN pin that performs the same

function in hardware. During shutdown mode, the con-

tents of the wiper register can be changed and the

potentiometer returns from shutdown to the new value.

The wiper is reset to the mid-scale position (80h) upon

power-up. The RS (reset) pin implements a hardware

reset and also returns the wiper to mid-scale. The

MCP42XXX SPI interface includes both the SI and SO

pins, allowing daisy-chaining of multiple devices. Chan-

nel-to-channel resistance matching on the MCP42XXX

varies by less than 1%. These devices operate from a

single 2.7 - 5.5V supply and are specified over the

extended and industrial temperature ranges.

• Potentiometer values for 10 kΩ, 50 kΩ and

100 kΩ

• Single and dual versions

• SPI™ serial interface (mode 0,0 and 1,1)

•

±1 LSB max INL & DNL

• Low power CMOS technology

• 1 µA maximum supply current in static operation

• Multiple devices can be daisy-chained together

(MCP42XXX only)

• Shutdown feature open circuits of all resistors for

maximum power savings

• Hardware shutdown pin available on MCP42XXX

only

• Single supply operation (2.7V - 5.5V)

• Industrial temperature range: -40°C to +85°C

• Extended temperature range: -40°C to +125°C

Block Diagram

SHDN

V_DD

V_SS

PB0

Resistor

Wiper

Control

Logic

Array 0

Package Types

PDIP/SOIC

PA0

PW0

PB1

PA1

PW1

SCK

V_DD

Wiper Resistor

16-Bit

Shift

Array 1*

PB0

PW0

PA0

SCK

V_SS

*Potentiometer P1 is only available on the dual

PDIP/SOIC/TSSOP

MCP42XXX version.

V_DD

SCK

V_SS

PB1

PW1

PA1

SHDN

PB0

PW0

PA0

 2003 Microchip Technology Inc.

DS11195C-page 1

12 3 4 5 6 7...32

中文翻译

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型号	品牌	获取价格	描述	数据表
MCP4231	MICROCHIP	获取价格	7/8-Bit Single/Dual SPI Digital POT with Volatile Memory
MCP4231-103E/MF	MICROCHIP	获取价格	7/8-Bit Single/Dual SPI Digital POT with Volatile Memory
MCP4231-103E/ML	MICROCHIP	获取价格	7/8-Bit Single/Dual SPI Digital POT with Volatile Memory
MCP4231-103E/MS	MICROCHIP	获取价格	7/8-Bit Single/Dual SPI Digital POT with Volatile Memory
MCP4231-103E/P	MICROCHIP	获取价格	7/8-Bit Single/Dual SPI Digital POT with Volatile Memory
MCP4231-103E/SL	MICROCHIP	获取价格	7/8-Bit Single/Dual SPI Digital POT with Volatile Memory
MCP4231-103E/SN	MICROCHIP	获取价格	7/8-Bit Single/Dual SPI Digital POT with Volatile Memory
MCP4231-103E/ST	MICROCHIP	获取价格	7/8-Bit Single/Dual SPI Digital POT with Volatile Memory
MCP4231-103E/UN	MICROCHIP	获取价格	7/8-Bit Single/Dual SPI Digital POT with Volatile Memory
MCP4231-103I/MF	MICROCHIP	获取价格	7/8-Bit Single/Dual SPI Digital POT with Volatile Memory

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