ad7376 Analog Devices, Inc., ad7376 Datasheet - Page 2

• Manufacturer Part Number: ad7376
• Description: +30 V/?15 V Operation 128-position Digital Potentiometer
• Manufacturer: Analog Devices, Inc.

AD7376
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
3-Wire Digital Interface................................................................... 6
Absolute Maximum Ratings............................................................ 7
Pin Configurations and Function Descriptions ........................... 8
Typical Performance Characteristics ............................................. 9
Theory of Operation ...................................................................... 12
REVISION HISTORY
3/07—Rev. A to Rev. B
Updated Format..................................................................Universal
Changes to Absolute Maximum Ratings ....................................... 7
Changes to ESD Protection Section ............................................. 14
Changes to Ordering Guide .......................................................... 19
11/05—Rev. 0 to Rev. A
Updated Format..................................................................Universal
Deleted DIP Package ..........................................................Universal
Changes to Features.......................................................................... 1
Separated Electrical Characteristics into Table 1 and Table 2 .... 3
Separated Interface Timing into Table 3 ....................................... 5
Changes to Table 1 Through Table 3.............................................. 3
Added Table 4.................................................................................... 6
Added Figure 2.................................................................................. 6
Changes to Absolute Maximum Ratings Section......................... 7
Deleted Parametric Test Circuits Section...................................... 7
Changes to Typical Performance Characteristics......................... 9
Added Daisy-Chain Operation Section....................................... 14
Added ESD Protection Section..................................................... 14
Added Terminal Voltage Operating Range Section................... 14
Added Power-Up and Power-Down Sequences Section ........... 14
Added Layout and Power Supply Biasing Section...................... 15
Added Applications Section.......................................................... 16
Updated Outline Dimensions ....................................................... 18
Changes to Ordering Guide .......................................................... 19
10/97—Revision 0: Initial Version
Electrical Characteristics—10 kΩ Version................................ 3
Electrical Characteristics—50 kΩ, 100 kΩ Versions ............... 4
Timing Specifications .................................................................. 5
ESD Caution.................................................................................. 7
Rev. B | Page 2 of 20
Applications Information .............................................................. 16
Outline Dimensions ....................................................................... 18
Programming the Variable Resistor......................................... 12
Programming the Potentiometer Divider............................... 13
3-Wire Serial Bus Digital Interface .......................................... 13
Daisy-Chain Operation ............................................................. 14
ESD Protection ........................................................................... 14
Terminal Voltage Operating Range ......................................... 14
Power-Up and Power-Down Sequences.................................. 14
Layout and Power Supply Biasing ............................................ 15
High Voltage DAC...................................................................... 16
Programmable Power Supply ................................................... 16
Audio Volume Control .............................................................. 17
Ordering Guide .......................................................................... 19