数据搜索系统,热门电子元器件搜索 |
|
ADC08238BIN 数据表(PDF) 15 Page - National Semiconductor (TI) |
|
|
ADC08238BIN 数据表(HTML) 15 Page - National Semiconductor (TI) |
15 / 24 page Functional Description (Continued) Since the input configuration is under software control it can be modified as required before each conversion A channel can be treated as a single-ended ground refer- enced input for one conversion then it can be reconfigured as part of a differential channel for another conversion Fig- ure 1 illustrates the input flexibility which can be achieved The analog input voltages for each channel can range from 50mV below ground to 50mV above VCC (typically 5V) with- out degrading conversion accuracy 20 THE DIGITAL INTERFACE A most important characteristic of these converters is their serial data link with the controlling processor Using a serial communication format offers two very significant system im- provements it allows many functions to be included in a small package and it can eliminate the transmission of low level analog signals by locating the converter right at the analog sensor transmitting highly noise immune digital data back to the host processor To understand the operation of these converters it is best to refer to the Timing Diagrams and Functional Block Diagram and to follow a complete conversion sequence For clarity a separate timing diagram is shown for each device 1 A conversion is initiated by pulling the CS (chip select) line low This line must be held low for the entire conver- sion The converter is now waiting for a start bit and its MUX assignment word 2 On each rising edge of the clock the status of the data in (DI) line is clocked into the MUX address shift register The start bit is the first logic ‘‘1’’ that appears on this line (all leading zeros are ignored) Following the start bit the converter expects the next 2 to 4 bits to be the MUX assignment word 8 Single-Ended 8 Pseudo-Differential 4 Differential Mixed Mode TLH11015 – 17 FIGURE 1 Analog Input Multiplexer Options for the ADC08238 15 |
类似零件编号 - ADC08238BIN |
|
类似说明 - ADC08238BIN |
|
|
链接网址 |
隐私政策 |
ALLDATASHEETCN.COM |
ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |