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AD5270BRMZ20 数据手册 - ADI（亚德诺）
制造商:
ADI（亚德诺）
分类:
数字电位器
封装:
MSOP
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P10P23Hot
原理图在P1
封装尺寸在P23
型号编码规则在P24
焊接温度在P9
功能描述在P1P10P23
技术参数、封装参数在P1P3P7P9P17P22
应用领域在P1
电气规格在P3P5P11
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AD5270BRMZ20数据手册
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AD5270/AD5271 Data Sheet
Rev. F | Page 2 of 24
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Electrical Characteristics—AD5270 .......................................... 3
Electrical Characteristics—AD5271 .......................................... 5
Interface Timing Specifications .................................................. 7
Absolute Maximum Ratings ............................................................ 9
Thermal Resistance ...................................................................... 9
ESD Caution .................................................................................. 9
Pin Configuration and Function Descriptions ........................... 10
Typical Performance Characteristics ........................................... 11
Test Circuits ..................................................................................... 17
Theory of Operation ...................................................................... 18
Serial Data Interface ................................................................... 18
Shift Register ............................................................................... 18
RDAC Register ............................................................................ 18
50-TP Memory Block ................................................................ 18
Write Protection ......................................................................... 18
RDAC and 50-TP Read Operation .......................................... 19
Shut-Down Mode ....................................................................... 20
Resistor Performance Mode ...................................................... 20
Reset ............................................................................................. 20
SDO Pin and Daisy-Chain Operation ..................................... 21
RDAC Architecture .................................................................... 21
Programming the Variable Resistor ......................................... 22
EXT_CAP Capacitor .................................................................. 22
Terminal Voltage Operating Range ......................................... 22
Power-Up Sequence ................................................................... 22
Outline Dimensions ....................................................................... 23
Ordering Guide .......................................................................... 24
REVISION HISTORY
3/13—Rev. E to Rev. F
Changed Resistor Noise Density, R
AW
= 20 kΩ from 50 nV/√Hz
to 13 nV/√Hz; Table 1 ...................................................................... 4
Changed Resistor Noise Density, R
AW
= 20 kΩ from 50 nV/√Hz
to 13 nV/√Hz; Table 4 ...................................................................... 6
Updated Outline Dimensions ....................................................... 23
12/10—Rev. D to Rev. E
Changes to SDO Pin Description ................................................. 10
Changes to SDO Pin and Daisy-Chain Operation Section ....... 21
11/10—Rev. C to Rev. D
Changes to Figure 25 ...................................................................... 14
9/10—Rev. B to Rev. C
Changes to Figure 3 Caption ........................................................... 7
Changes to Figure 4 Caption ........................................................... 8
Deleted Daisy-Chain Operation Section, Added SDO Pin and
Daisy-Chain Operation Section ................................................... 21
5/10—Rev. A to Rev. B
Added LFCSP Throughout .............................................................. 1
Changed OTP to 50-TP Throughout.............................................. 1
Changes to Product Title, Features, and General Description .... 1
Changes to Table 1 ............................................................................. 3
Added Table 3; Renumbered Sequentially ..................................... 4
Changes to Table 4 ............................................................................. 5
Added Table 6 .................................................................................... 6
Changes to Table 8 and Table 9........................................................ 9
Added Figure 6 and changes to Table 10 ..................................... 10
Replaced Typical Performance Characteristics Section ............ 11
Changes to Figure 44 ...................................................................... 21
Updated Outline Dimensions ....................................................... 23
Changes to Ordering Guide .......................................................... 24
3/10—Rev. 0 to Rev. A
Changes to Product Title and General Description.....................1
Changes to Theory of Operation Section...................................14
10/09—Revision 0: Initial Version
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