<noscript id="jzg9f"><xmp id="jzg9f">
    •         


    
    



    

    
  
    
    
    
    
    
      
    
    
  
    
  
  

    





    


    
 
 




 
 


    

    
    


    參數(shù)資料
    

    


    


    
型號：
LTC1289CC

    

    
廠商：
Linear Technology Corporation

    

    
元件分類：
Codec

    

    
英文描述：
Single Channel Codec W/Master-Slave Function (3 Slaves) and 89 dB SNR 28-SOIC

    

    
中文描述：
3伏單芯片12位數(shù)據(jù)采集系統(tǒng)

    

    
文件頁數(shù)：
15/28頁

    

    
文件大小：
487K

    

    
代理商：
LTC1289CC


    

    

    

	
    
    
    

    
    
	
    15
    LTC1289
    U
    S
    A
    O
    PPLICATI
    IU
    U
    Logic Levels
    The logic level standards for this supply range have not been
    well defined. What standards that do exist are not universally
    accepted. The trip point on the logic inputs of the LTC1289 is
    0.28 
    ×
     V
    CC
    . This makes the logic inputs compatible with HC
    type logic levels and processors that are specified at 3.3V.
    The output D
    OUT
     is also compatible with the above stan-
    dards. The following summarizes such levels.
    The LTC1289 can be driven with 5V logic even when V
    CC
    is at 3.3V. This is due to a unique input protection device
    that is found on the LTC1289.
    Microprocessor Interfaces
    The LTC1289 can interface directly (without external hard-
    ware) to most popular microprocessor (MPU) synchro-
    nous serial formats. If an MPU without a serial interface is
    used, then four of the MPU’s parallel port lines can be
    programmed to form the serial link to the LTC1289. Many
    of the popular MPU's can operate with 3V supplies. For
    example the MC68HC11 is an MPU with a serial format
    (SPI). Likewise parallel MPU’s that have the 8051 type
    architecture are also capable of operating at this voltage
    range. The code for these processors remains the same
    and can be found in the LTC1290 datasheet or application
    notes AN36A and AN36B.
    Sharing the Serial Interface
    The LTC1289 can share 3-wire serial interface with other
    peripheral components or other LTC1289s (See Figure 5).
    In this case, the CS signals decide which LTC1289 is being
    addressed by the MPU.
    ANALOG CONSIDERATIONS
    1. Grounding
    The LTC1289 should be used with an analog ground plane
    and single point grounding techniques.
    Pin 11 (AGND) should be tied directly to this ground plane.
    Pin 10 (DGND) can also be tied directly to this ground
    plane because minimal digital noise is generated within
    the chip itself.
    Pin 20 (V
    CC
    ) should be bypassed to the ground plane with a
    22
    μ
    F tantalum with leads as short as possible. Pin 12 (V
    –
    )
    should be bypassed with a 0.1
    μ
    F ceramic disk. For single
    supply applications, V
    – 
    can be tied to the ground plane.
    It is also recommended that pin 13 (REF
    –
    ) and pin 9 (COM)
    be tied directly to the ground plane. All analog inputs should
    be referenced directly to the single point ground. Digital
    inputs and outputs should be shielded from and/or routed
    away from the reference and analog circuitry.
    Figure 5. Several LTC1289s Sharing One 3-Wire Serial Interface
    V
    OH
     (no load)
    V
    OL
     (no load)
    V
    OH
    V
    OL
    V
    IH
    V
    IL
    V
    CC
     - 0.1V
    0.1V
    0.9 
    ×
     V
    CC
    0.1 
    ×
     V
    CC
    0.7 
    ×
     V
    CC
    0.2 
    ×
     V
    CC
    8 CHANNELS
    8 CHANNELS
    8 CHANNELS
    3
    3
    3
    3
    3-WIRE SERIAL
    INTERFACE TO OTHER
    PERIPHERALS OR LTC1289s
    2
    1
    0
    OUTPUT PORT
    SERIAL DATA
    MPU
    LTC1289 AIF05
    LTC1289
    CS
    LTC1289
    CS
    LTC1289
    CS
    
    
    
    
    
    


    


    

    相關(guān)PDF資料
    		

    PDF描述
    		

    
    

    
LTC1289CI
3 Volt Single Chip 12-Bit Data Acquisition System

    

    
LTC1289BCJ
3 Volt Single Chip 12-Bit Data Acquisition System

    

    
LTC1289BIJ
3 Volt Single Chip 12-Bit Data Acquisition System

    

    
LTC1289BIN
3 Volt Single Chip 12-Bit Data Acquisition System

    

    
LTC1289CIJ
3 Volt Single Chip 12-Bit Data Acquisition System

    

    

    

    


    


    

    相關(guān)代理商/技術(shù)參數(shù)
    		

    參數(shù)描述
    		

    
    

    
LTC1289CCN
功能描述:IC DATA ACQ SYS 12BIT 3V 20-DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS
	Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤

    

    
LTC1289CCN#PBF
功能描述:IC DATA ACQ SYS 12BIT 3V 20-DIP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS
	Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤

    

    
LTC1289CCSW
功能描述:IC DATA ACQ SYS 12BIT 3V 20-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS
	Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤

    

    
LTC1289CCSW#PBF
功能描述:IC DATA ACQ SYS 12BIT 3V 20-SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS
	Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤

    

    
LTC1289CCSW#TR
功能描述:IC DATA ACQ SYS 12BIT 3V 20SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS
	Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤

    

    
    
    
    
	
    	
    
    
     
     
    發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。
    
 
     
    

   	  
    
     

    
                    			    				      
    
                
    
                  
    
                    
                    
    
                      
    
                      
                      
    采購需求
      (若只采購一條型號，填寫一行即可)
    
                      
                      
    發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價
    
                      
                      
    發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價
    
                       
                        
    
                                
                                
    
                                    *型號
                                    *數(shù)量
                                    廠商
                                    批號
                                    封裝
                                  
    
                                    
                                
                                
    
                                    
                                        
    
                                            
                                            
                                        
    
                                        		
                                     
                                    
                                        
    
                                        		
                                    
                                        
    
                                        		
                                    
                                        
    
                                        		
                                    
                                        
    
                                        		
                                  
    
                                  
                                   
                                    
                            
    
                             
                             
							                            
    
                          添加更多采購
    
                      
    
                      
                      
    
                      
                      
    我的聯(lián)系方式
    
                     
                     
                       
    
                                
                                
                                
    
                                    
                                         *
                                    
                                    
                                  
    
                                  
                                  
    
                                    
                                         *
                                    
                                    
                                  
    
                                  
                                  
    
                                    
                                        
                                    
                                    
                                  
    
                                  
                                  
    
                                    
                                         *