參數(shù)資料
    

    


    


    
型號(hào)：
MAX4274BDEUA

    

    
廠商：
MAXIM INTEGRATED PRODUCTS INC

    

    
元件分類(lèi)：
運(yùn)動(dòng)控制電子

    

    
英文描述：
Application Specific Amplifier

    

    
中文描述：
DUAL OP-AMP, 2500 uV OFFSET-MAX, PDSO8

    

    
封裝：
MO-187, UMAX-8

    

    
文件頁(yè)數(shù)：
11/20頁(yè)

    

    
文件大?。?/td>
359K

    

    
代理商：
MAX4274BDEUA


    

    

    

	
    
    
    

    
    
	
    M
    SOT23, Rail-to-Rail, Fixed-Gain
    GainAmps/Open-Loop Op Amps
    ______________________________________________________________________________________
    11
    Detailed Description
    Maxim’s GainAmp fixed-gain amplifiers combine a low-
    cost rail-to-rail op amp with internal gain-setting resis-
    tors. Factory-trimmed on-chip resistors provide 0.1%
    gain accuracy while decreasing design size, cost, and
    layout. Three versions are available in this amplifier
    family: single/dual/quad open-loop, unity-gain-stable
    devices (MAX4281/MAX4282/MAX4284); single/dual
    fixed-gain devices (MAX4174/MAX4274); and single/
    dual devices with fixed gain plus internal V
    CC 
    / 2 bias
    at the noninverting input (MAX4175/MAX4275). All
    amplifiers feature rail-to-rail outputs and drive a 1k
    load while maintaining excellent DC accuracy. 
    Open-Loop Op Amps
    The single/dual/quad MAX4281/MAX4282/MAX4284
    are high-performance, open-loop op amps with rail-to-
    rail outputs. These devices are compensated for unity-
    gain stability, and feature a gain bandwidth (GBW) of
    2MHz. The op amps in these ICs feature an input com-
    mon-mode range that extends from 150mV below the
    negative rail to within 1.2V of the positive rail. These
    high performance op amps serve as the core for this
    family of GainAmp fixed-gain amplifiers. Although the
    -3dB bandwidth will not correspond to that of a fixed-
    gain amplifier in higher gain configurations, these
    open-loop op-amps can be used to prototype designs.
    Internal Gain-Setting Resistors
    Maxim’s proprietary laser trimming techniques produce
    the necessary R
    F
    /R
    G
     values (Figure 1), so many gain
    offerings are easily available. These GainAmp fixed-gain
    amplifiers feature a negative-feedback resistor network
    that is laser trimmed to provide a gain-setting feedback
    ratio (R
    F
    /R
    G
    ) with 0.1% typical accuracy. The standard
    op amp pinouts allow the GainAmp fixed-gain amplifiers
    to drop in directly to existing board designs, easily
    replacing op-amp-plus-resistor gain blocks.
    GainAmp Bandwidth 
    GainAmp fixed-gain amplifiers feature factory-trimmed
    precision resistors to provide fixed inverting gains from
    -0.25V/V to -100V/V or noninverting gains from
    +1.25V/V to +101V/V. The op-amp core is decompen-
    sated strategically over the gain-set options to maxi-
    mize bandwidth. Open-loop decompensation increases
    GBW product, ensuring that usable bandwidth is main-
    tained with increasing closed-loop gains. A GainAmp
    with a fixed gain of A
    V
    = 100V/V has a -3dB bandwidth
    of 230kHz. By comparison, a unity-gain-stable op amp
    configured for A
    V
     = 100V/V would yield a -3dB band-
    width of only 20kHz (Figure 2). Decompensation is per-
    formed at five intermediate gain sets, as shown in the
    Gain Selection Guide Low gain decompensation great-
    ly increases usable bandwidth, while decompensation
    above gains of +25V/V offers diminished returns.
    V
    CC 
    / 2 Internal Bias
    The MAX4175/MAX4275 GainAmp fixed-gain amplifiers
    with the V
    CC 
    / 2 bias option are identical to standard
    GainAmp fixed-gain amplifiers, with the added feature
    of V
    CC 
    / 2 internal bias at the noninverting inputs. Two
    150k
     resistors form a voltage-divider for self-biasing
    the noninverting input, eliminating external bias resis-
    tors for AC-coupled applications, and allowing maxi-
    mum signal swing at the op amp’s rail-to-rail output for
    single-supply systems (see Typical Operating Circuit).
    For DC-coupled applications, use the MAX4174/
    MAX4274.
    High-Voltage (±17V) Input Fault Protection
    The MAX4174/MAX4175/MAX4274/MAX4275 include
    ±17V input fault protection. For normal operation, see
    the input voltage range specification in the Electrical
    Characteristics Overdriven inputs up to ±17V will not
    OUT
    V
     = -R
    F
    A
    G
    R
    G
    R
    F
    IN-
    IN+
    V
    CC
    V
    EE
    V
     = 1 +  R
    F
    A
    G
    Figure 1.  Internal Gain-Setting Resistors
    FREQUENCY (Hz)
    G
    60
    0
    10
    20
    30
    40
    -3dB
    50
    10
    10k
    100k
    1M
    10M
    100
    1k
    20kHz
    230kHz
    MAX4281, A
    V
     = 100
    2MHz GBW
    MAX4174, 
    A
    V
     = 100
    23MHz GBW
    Figure 2.  Gain-Bandwidth Comparison
    Powered by ICminer.com Electronic-Library Service CopyRight 2003
    
    
    
    
    
    


    


    

    相關(guān)PDF資料
    		

    PDF描述
    		

    
    

    
MAX4274BEESA
Application Specific Amplifier

    

    
MAX4274BEEUA
Application Specific Amplifier

    

    
MAX4274BFESA
Application Specific Amplifier

    

    
MAX4274BFEUA
Application Specific Amplifier

    

    
MAX4274BGESA
Application Specific Amplifier

    

    

    

    


    


    

    相關(guān)代理商/技術(shù)參數(shù)
    		

    參數(shù)描述
    		

    
    

    
MAX4274BDEUA-T
功能描述:運(yùn)算放大器 - 運(yùn)放

 RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel

    

    
MAX4274BEESA
功能描述:運(yùn)算放大器 - 運(yùn)放 Integrated Circuits (ICs)

 RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel

    

    
MAX4274BEESA+T
功能描述:運(yùn)算放大器 - 運(yùn)放 RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel

    

    
MAX4274BEESA-T
功能描述:運(yùn)算放大器 - 運(yùn)放

 RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel

    

    
MAX4274BEEUA
功能描述:運(yùn)算放大器 - 運(yùn)放 Integrated Circuits (ICs)

 RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel

    

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

   	  
    
     

    
                    			    				      
    
                
    
                  
    
                    
                    
    
                      
    
                      
                      
    采購(gòu)需求
      (若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)
    
                      
                      
    發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)
    
                      
                      
    發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)
    
                       
                        
    
                                
                                
    
                                    *型號(hào)
                                    *數(shù)量
                                    廠商
                                    批號(hào)
                                    封裝
                                  
    
                                    
                                
                                
    
                                    
                                        
    
                                            
                                            
                                        
    
                                        		
                                     
                                    
                                        
    
                                        		
                                    
                                        
    
                                        		
                                    
                                        
    
                                        		
                                    
                                        
    
                                        		
                                  
    
                                  
                                   
                                    
                            
    
                             
                             
							                            
    
                          添加更多采購(gòu)
    
                      
    
                      
                      
    
                      
                      
    我的聯(lián)系方式
    
                     
                     
                       
    
                                
                                
                                
    
                                    
                                         *
                                    
                                    
                                  
    
                                  
                                  
    
                                    
                                         *
                                    
                                    
                                  
    
                                  
                                  
    
                                    
                                        
                                    
                                    
                                  
    
                                  
                                  
    
                                    
                                         *