AD5242 查看數據表（PDF） - Analog Devices

零件编号

产品描述 (功能)

生产厂家

AD5242

I2C-Compatible, 256-Position Digital Potentiometers

Analog Devices 

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS

AD5241/AD5242

A1 1

14 O1

W1 2

13 NC

B1

VDD

SHDN

3 AD5241 12 O2

4 TOP VIEW 11 VSS

5 (Not to Scale) 10 DGND

SCL 6

9 AD1

SDA 7

8 AD0

NC = NO CONNECT

Figure 6. AD5241 Pin Configuration

Table 4. AD5241 Pin Function Descriptions

Pin No. Mnemonic Description

1

A1

Resistor Terminal A1.

2

W1

Wiper Terminal W1.

3

B1

Resistor Terminal B1.

4

VDD

Positive Power Supply, Specified for

Operation from 2.2 V to 5.5 V.

5

SHDN

Active low, asynchronous connection of

Wiper W to Terminal B, and open circuit

of Terminal A. RDAC register contents

unchanged. SHDN should tie to VDD

if not used.

6

SCL

Serial Clock Input.

7

SDA

Serial Data Input/Output.

8

AD0

Programmable Address Bit for Multiple

Package Decoding. Bit AD0 and Bit AD1

provide four possible addresses.

9

AD1

Programmable Address Bit for Multiple

Package Decoding. Bit AD0 and Bit AD1

provide four possible addresses.

10

DGND

Common Ground.

11

VSS

Negative Power Supply, Specified for

Operation from 0 V to −2.7 V.

12

O2

Logic Output Terminal O2.

13

NC

No Connect.

14

O1

Logic Output Terminal O1.

O1 1

A1 2

16 A2

15 W2

W1 3

14 B2

B1 4 AD5242 13 O2

TOP VIEW

VDD 5 (Not to Scale) 12 VSS

SHDN 6

11 DGND

SCL 7

10 AD1

SDA 8

9 AD0

Figure 7. AD5242 Pin Configuration

Table 5. AD5242 Pin Function Descriptions

Pin No. Mnemonic Description

1

O1

Logic Output Terminal O1.

2

A1

Resistor Terminal A1.

3

W1

Wiper Terminal W1.

4

B1

Resistor Terminal B1.

5

VDD

Positive Power Supply, Specified for

Operation from 2.2 V to 5.5 V.

6

SHDN

Active Low, Asynchronous Connection

of Wiper W to Terminal B, and Open

Circuit of Terminal A. RDAC register

contents unchanged. SHDN should

tie to VDD, if not used.

7

SCL

Serial Clock Input.

8

SDA

Serial Data Input/Output.

9

AD0

Programmable Address Bit for Multiple

Package Decoding. Bit AD0 and Bit AD1

provide four possible addresses.

10

AD1

Programmable Address Bit for Multiple

Package Decoding. Bit AD0 and Bit AD1

provide four possible addresses.

11

DGND

Common Ground.

12

VSS

Negative Power Supply, Specified for

Operation from 0 V to −2.7 V.

13

O2

Logic Output Terminal O2.

14

B2

Resistor Terminal B2.

15

W2

Wiper Terminal W2.

16

A2

Resistor Terminal A2.

Rev. C | Page 7 of 20

Share Link: