3. 

        <meter id="pryje"><nav id="pryje"><delect id="pryje"></delect></nav></meter>
          <label id="pryje"></label>
          
	
	
          
		
			
		
          
    
    	
          
  		
          
		    
          
		      
		      
		      
		    
          
  		
          
  		
          
	
          


	


          
		
          
		            
            
        		
          
		
          







          


          
	
	
          
		
          新聞中心
          
	
          
	
          
	
          EEPW首頁 
	 > 模擬技術(shù) > 設(shè)計應(yīng)用 > 選擇合適的系列電壓基準(zhǔn)源的絕對精度電壓輸出
          
    
          

          

          


	
	
	

          
	
          
		
          
			
          選擇合適的系列電壓基準(zhǔn)源的絕對精度電壓輸出
          
						
          
				作者：
				時間：2012-01-30
				來源：網(wǎng)絡(luò)
				
				
				
				
				收藏
			
          

			
          
				
				
			
          

			
          
			
			
          
			
			
          
				
				
			
          
                
			DING-TOP: 0px">
          Output Voltage
          Range = 0 -2.5V
          Range = 0 - 4.096V
          Range = 0 -4.000V
          Range = 0 -2.048V
          DAC Output
          Force/sense
          Fixed gain = 1.638
          Fixed gain = 2
          Fixed gain = 1.638
          Power Supply
          5V(varying)
          4.5V min
          5.5V max
          5V(constant)
          4.95V min
          +12V available
          5V(constant)
          4.75V min
          5.25V max
          3V(varying VBATT)
          2.7V min
          3.6V max
          Temperature Range
          0°C to 70°C (commercial)
          0°C to 70°C (commercial)
          -40°C to 85°C (extended)
          15°C to 45°C ( commercial)
          Signal BW
          10Hz to 10kHz
          DC to 1kHz
          DC to 10Hz
          DC to 10Hz
          DAC Calibration
          None
          Burn-in + annual (gain and offset)
          One-time factory (gain and offset)
          None
          Maximum Error Target
          16LSB @ 10 bits (6-bit accuracy)
          2LSB @ 14 bits (13-bit accuracy)
          4LSB @ 12 bits (10-bit accuracy)
          8LSB @ 12 bits (9-bit accuracy)

          Step 1: Voltage Ranges and Reference-Voltage Determination
          The first consideration when selecting a voltage reference for a DAC application is to evaluate the supply-voltage and the DAC output-voltage ranges (Table 2). To simplify the design examples described above, DACs have already been chosen, so their output gain is not a variable we will trade off as in a real design.

          Table 2. Voltage-Related Parameters for DAC Design Examples
          Parameter
          Design A
          Design B
          Design C
          Design D
          Main Design Objectives
          Low cost, loose accuracy
          High absolute accuracy and precision
          One-time calibrated, low drift
          Low voltage, battery powered, moderate accuracy
          Example Application
          Consumer audio device
          Lab instrument
				
            
                
			
							
          
                
			            
                            
              
            
		
		
          
		
          
		
          
		
          
			
            
				
          • 
					
					
			  	
            • 
			  	
          • 
					
					
			  	
            • 
			  	
          • 
					
					
			  	
            • 
				
          • 
					
					
				
            • 
				
          • 
					
					
				
            • 
			
          
			
          
		
          
		
		
          
		
          
			
			
		
          
        
			
		

	

          
	
	
          
		
          
			
          評論
          					
		
          
		
          
			
          
			
				
          
					
					
          
						
                        
					
          
				
          
                		
						
						
			
          
		
          
		
          
		
          
            
			
            
		
          
	
          
	
          
	
          
		

          
	
          
		
          相關(guān)推薦
          					
	
          
	
    
	

          		



	
          
	
          
		
		
	
          


    
          
        
          技術(shù)專區(qū)
          
      
          
       
       


   











          
	
	
	

          







	
	





          



          


看屁屁www成人影院,亚洲人妻成人图片,亚洲精品成人午夜在线,日韩在线 欧美成人

(function(){
    var bp = document.createElement('script');
    var curProtocol = window.location.protocol.split(':')[0];
    if (curProtocol === 'https') {
        bp.src = 'https://zz.bdstatic.com/linksubmit/push.js';
    }
    else {
        bp.src = 'http://push.zhanzhang.baidu.com/push.js';
    }
    var s = document.getElementsByTagName("script")[0];
    s.parentNode.insertBefore(bp, s);
})();