Products Mentioned

AD9655 Recommended for New Designs
The AD9655 is a dual, 16-bit, 125 MSPS analog-to-digital converter (ADC) with an on-chip sample-and-hold circuit designed for low cost, low power, small...
Datasheet
AD9655 on Analog.com

LTC2195 Production
The LTC2195/LTC2194/LTC2193 are 2-channel, simultaneous sampling 16-bit A/D converters designed for digitizing high frequency, wide dynamic range signals...
Datasheet
LTC2195 on Analog.com

LTC2185 Production
The LTC2185/LTC2184/LTC2183 are two-channel simultaneous sampling 16-bit A/D converters designed for digitizing high frequency, wide dynamic range signals...
Datasheet
LTC2185 on Analog.com

AD9650 Recommended for New Designs
The AD9650 is a dual, 16-bit, 25 MSPS/65 MSPS/80 MSPS/ 105 MSPS analog-to-digital converter (ADC) designed for digitizing high frequency, wide dynamic...
Datasheet
AD9650 on Analog.com

LTC2184 Production
The LTC2185/LTC2184/LTC2183 are two-channel simultaneous sampling 16-bit A/D converters designed for digitizing high frequency, wide dynamic range signals...
Datasheet
LTC2184 on Analog.com

LTC2194 Production
The LTC2195/LTC2194/LTC2193 are 2-channel, simultaneous sampling 16-bit A/D converters designed for digitizing high frequency, wide dynamic range signals...
Datasheet
LTC2194 on Analog.com

AD9268 Production
The AD9268 is a dual, 16-bit, 80 MSPS/105 MSPS/125 MSPS analog-to-digital converter (ADC). The AD9268 is designed to support communications applications...
Datasheet
AD9268 on Analog.com

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ADC 16bits Sample Rate >= 100SPS; double channel / Synchronization

		
	
				

			

									
					    BP_FRANCE
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Nov 4, 2021 
				
			
			
		
    
		
		                     
				
        		
    
		    
		    		    
		    			
    
			    
    Hi,
    

    I am looking for an AD 16 bits 2 channels 16bits with a minimum sample rate of 100 SPS.
    

    I find several analog device references like : AD9655 / LTC2195 / LTC2185 / TC2195 / AD9650 / LTC2184 / LTC2194 / AD9268
    

    I would like to synchronize up to 4 ADC in the same board plus another ADC on another board.
    

    The above ADC references havn't JESD interface but serial LVDS or Parallel Data Output interface ...
    

    

    Questions :
    

    AD9650 / AD9268 can be synchronized but are more expensive than AD9655 / LTC2195 / LTC2185 / TC2195 /  / LTC2184 / LTC2194  ADC references.
    

    Without JESD interface, is it possible to synchronize multiple ADC if it doesn't own synchronize function ?
    

    Thanks
    

    B.PINARD
    

    
			
    
			
									
		                             
                        

    
    
                                            
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							FormerMember
					
      
		
      
		    
		    		    
			
				
									FormerMember
							        
			
			
			
    
            
						
                            
            
            				
            
                on Nov 4, 2021 9:39 AM
            
            
						
			            		
    
		
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    Hello,
    

    Typically the answer is yes if the same  pipe-line ADC's (having fixed latency) are being used and driven by clock that is equal to the ADC rate (i.e. not using an internal divider) with care taken to match trace lengths such that rising edge of clock seen by all devices occurs at same instance.  If ADC has clock divider, one can use a SYNC pin (should it exist) to synchronize devices such that clock dividers of all devices are also phase aligned.   

    Regards