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MAX495CSA

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    相关型号 MAX491CPD+ MAX491CSD MAX491ECSD MAX491EESD MAX500 MAX504EPD MAX517 MAX518
Description
 
 


 

 

The dual MAX492, quad MAX494, and single MAX495 operational amplifiers combine excellent DC accuracy with rail-to-rail operation at the input and output. Since the common-mode voltage extends from VCC to VEE, the devices can operate from either a single supply (+2.7V to +6V) or split supplies (±1.35V to ±3V). Each op amp requires less than 150µA supply current. Even with this low current, the op amps are capable of driving a 1k load, and the input referred voltage noise is only 25nV/Hz. In addition, these op amps can drive loads in excess of 1nF.

The precision performance of the MAX492/MAX494/MAX495, combined with their wide input and output dynamic range, low-voltage single-supply operation, and very low supply current, makes them an ideal choice for battery-operated equipment and other low-voltage applications. The MAX492/MAX494/MAX495 are available in DIP and SO packages in the industry-standard op-amp pin configurations. The MAX495 is also available in the smallest 8-pin SO: the µMAX® package.

Key Features   Applications
  • Low-Voltage Single-Supply Operation (+2.7V to +6V)
  • Rail-to-Rail Input Common-Mode Voltage Range
  • Rail-to-Rail Output Swing
  • 500kHz Gain-Bandwidth Product
  • Unity-Gain Stable
  • 150µA Max Quiescent Current per Op Amp
  • No Phase Reversal for Overdriven Inputs
  • 200µV Offset Voltage
  • High Voltage Gain (108dB)
  • High CMRR (90dB) and PSRR (110dB)
  • Drives 1k Load
  • Drives Large Capacitive Loads
  • MAX495 Available in µMAX Package-8-Pin SO
  • Dual, precision, rail-to-rail input and output (MAX492)
  • Quad, precision, rail-to-rail input and output (MAX494)
  • Single, precision, rail-to-rail input and output (MAX495)

 
  • Battery-Powered Applications
  • Data Acquisition
  • Low-Voltage Applications
  • Portable Equipment
  • Signal Conditioning

    Key Specifications:   Operational Amplifiers
    Part Number Amps Per Pkg Input CMVR to Neg. Rail Rail to Rail Input or Output Min. Stable Closed Loop Gain (V/V) Min. Total Supply (V) Max. Total Supply (V) Typ. Supply Current per Amp. (µA) Max. Supply Current per Amp. (µA) Max. VOS (µV) Typ CMRR @ DC (dB) Typ PSRR @ DC (dB) Max. Input IBIAS (nA) Typ. Unity Gain BW (MHz) Typ. Slew Rate (V/us) Input CMVR (V) Typical Output Swing @ RLOAD (V) Input Voltage Noise (nV/rt.Hz) Input Current Noise (pA/rt.Hz) Noise Spec'd at: Low Power Shutdown Package RoHS Available Operating Temp. Range (°C) Price
    MAX492  2 Yes Input and Output 1 2.7 6.0 150.0 170.0 500 90 110 60.0 0.5 0.2 VEE to VCC VEE+0.15 to VCC-0.15 @ 1k 25.0 0.1 1kHz No 8/PDIP
    8/SOIC
    Yes 0 to +70 -40 to +85 -55 to +125 $2.25 @ 1k
    MAX494  4 14/PDIP
    14/SOIC
    $3.60 @ 1k
    MAX495  1 8/PDIP
    8/SOIC
    8/uMAX
    $1.45 @ 1k

    Application Notes
  • App Note 741: Rail-to-Rail Outputs and Beyond-the-Rails Inputs: The Inside Story on Micropower Op Amps - MAX492
  • App Note 851: Battery Charger Delivers 2.5A With >96% Efficiency - MAX495
  • App Note 899: Low Noise Audio Power Supply Circuit - MAX495
  • App Note 930: Synchronous Buck-Regulator Output Terminates High-Speed Data - MAX495
  • App Note 1047: SSB Modulator Draws Only 5mA at 2.7V - MAX492, MAX494
  • App Note 1094: Choosing The Optimum Buffer/ADC Combination For Your Application - MAX495
  • App Note 3536: Moving-Coil Meter Measures Low-Level Currents - MAX495


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