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      參數(shù)資料
      

      


      


      
型號(hào)：
LT1167AC

      

      
廠商：
Linear Technology Corporation

      

      
英文描述：
TRANS NPN 50VCEO 1A TO-92L

      

      
中文描述：
單電阻增益可編程精密儀表放大器

      

      
文件頁(yè)數(shù)：
13/20頁(yè)

      

      
文件大小：
426K

      

      
代理商：
LT1167AC


      

      

      

	
      
    
    

    
      
	
      13
      LT1167
      THEORY OF OPERATIOU
      Figure 3. Providing an Input Common Mode Current Path
      A 2N4393 drain/source to gate is a good low leakage diode
      for use with 1k resistors, see Figure 4. The input resistors
      should be carbon and not metal film or carbon film.
      RFI Reduction
      In many industrial and data acquisition applications,
      instrumentation amplifiers are used to accurately amplify
      small signals in the presence of large common mode
      voltages or high levels of noise. Typically, the sources of
      these very small signals (on the order of microvolts or
      millivolts) are sensors that can be a significant distance
      from the signal conditioning circuit. Although these sen-
      sors may be connected to signal conditioning circuitry,
      using shielded or unshielded twisted-pair cabling, the ca-
      bling may act as antennae, conveying very high frequency
      interference directly into the input stage of the LT1167.
      The amplitude and frequency of the interference can have
      an adverse effect on an instrumentation amplifier’s input
      stage by causing an unwanted DC shift in the amplifier’s
      input offset voltage. This well known effect is called RFI
      rectification and is produced when out-of-band interfer-
      ence is coupled (inductively, capacitively or via radiation)
      and rectified by the instrumentation amplifier’s input tran-
      sistors. These transistors act as high frequency signal
      detectors, in the same way diodes were used as RF
      envelope detectors in early radio designs. Regardless of
      the type of interference or the method by which it is
      coupled into the circuit, an out-of-band error signal ap-
      pears in series with the instrumentation amplifier’s inputs.
      APPLICATIO
      S I
      N
      FOR
      ATIO
      U
      The LT1167 is a low power precision instrumentation
      amplifier that requires only one external resistor to accu-
      rately set the gain anywhere from 1 to 1000. The output
      can handle capacitive loads up to 1000pF in any gain
      configuration and the inputs are protected against ESD
      strikes up to 13kV (human body).
      W
      U
      Input Protection
      The LT1167 can safely handle up to 
      ±
      20mA of input
      current in an overload condition. Adding an external 5k
      input resistor in series with each input allows DC input
      fault voltages up to 
      ±
      100V and improves the ESD immu-
      nity to 8kV (contact) and 15kV (air discharge), which is the
      IEC 1000-4-2 level 4 specification. If lower value input
      resistors are needed, a clamp diode from the positive
      supply to each input will maintain the IEC 1000-4-2
      specification to level 4 for both air and contact discharge.
      Figure 4. Input Protection
      10k
      R
      G
      R
      G
      R
      G
      1167 F03
      THERMOCOUPLE
      200k
      MICROPHONE,
      HYDROPHONE,
      ETC
      200k
      CENTER-TAP PROVIDES
      BIAS CURRENT RETURN
      –
      +
      LT1167
      –
      +
      LT1167
      –
      +
      LT1167
      V
      EE
      1167 F04
      V
      CC
      V
      CC
      V
      CC
      J2
      2N4393
      J1
      2N4393
      OUT
      OPTIONAL FOR HIGHEST
      ESD PROTECTION
      R
      G
      R
      IN
      R
      IN
      –
      +
      LT1167
      REF
      
    
      
    
    
      


      


      

      相關(guān)PDF資料
      		

      PDF描述
      		

      
      

      
LT1167IN8
Precision Instrumentation Amplifier

      

      
LT1167IS8
Precision Instrumentation Amplifier

      

      
LT1167
Precision Instrumentation Amplifier

      

      
LT1167ACN8
TRANS NPN 50VCEO 1A TO-92L

      

      
LT1167ACS8
TRANS NPN 200VCEO 70MA TO-92

      

      

      

      


      


      

      相關(guān)代理商/技術(shù)參數(shù)
      		

      參數(shù)描述
      		

      
      

      
LT1167ACN8
功能描述:IC PREC INSTRMNT-AMP PROG 8-DIP RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:150 系列:- 放大器類型:音頻 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:5 V/µs 增益帶寬積:12MHz -3db帶寬:- 電流 - 輸入偏壓:100nA 電壓 - 輸入偏移:500µV 電流 - 電源:6mA 電流 - 輸出 / 通道:50mA 電壓 - 電源，單路/雙路(±):4 V ~ 32 V，±2 V ~ 16 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:8-TSSOP 包裝:管件

      

      
LT1167ACN8#PBF
功能描述:IC PREC INSTRMNT-AMP PROG 8-DIP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:150 系列:- 放大器類型:音頻 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:5 V/µs 增益帶寬積:12MHz -3db帶寬:- 電流 - 輸入偏壓:100nA 電壓 - 輸入偏移:500µV 電流 - 電源:6mA 電流 - 輸出 / 通道:50mA 電壓 - 電源，單路/雙路(±):4 V ~ 32 V，±2 V ~ 16 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:8-TSSOP 包裝:管件

      

      
LT1167ACS8
功能描述:IC PREC INSTRMNT-AMP PROG 8-SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:150 系列:- 放大器類型:音頻 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:5 V/µs 增益帶寬積:12MHz -3db帶寬:- 電流 - 輸入偏壓:100nA 電壓 - 輸入偏移:500µV 電流 - 電源:6mA 電流 - 輸出 / 通道:50mA 電壓 - 電源，單路/雙路(±):4 V ~ 32 V，±2 V ~ 16 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:8-TSSOP 包裝:管件

      

      
LT1167ACS8#PBF
功能描述:IC PREC INSTRMNT-AMP PROG 8-SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:150 系列:- 放大器類型:音頻 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:5 V/µs 增益帶寬積:12MHz -3db帶寬:- 電流 - 輸入偏壓:100nA 電壓 - 輸入偏移:500µV 電流 - 電源:6mA 電流 - 輸出 / 通道:50mA 電壓 - 電源，單路/雙路(±):4 V ~ 32 V，±2 V ~ 16 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:8-TSSOP 包裝:管件

      

      
LT1167ACS8#TR
功能描述:IC AMP INSTR PROG PREC LP 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:150 系列:- 放大器類型:音頻 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:5 V/µs 增益帶寬積:12MHz -3db帶寬:- 電流 - 輸入偏壓:100nA 電壓 - 輸入偏移:500µV 電流 - 電源:6mA 電流 - 輸出 / 通道:50mA 電壓 - 電源，單路/雙路(±):4 V ~ 32 V，±2 V ~ 16 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:8-TSSOP 包裝:管件

      

      
    
    
    
	
      	
    
    
     
     
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