RDM-Apps                                                      
   SPECIFICATIONS:
      CTVS10PF & CTVM10PF
    
Low Current to Voltage Converter

Other Related Products:  Precision Voltage Amplifiers, Current to Voltage Converters 
 & Constant Current Sources 

Dont waste your time designing and/or packaging  a pico-amp input OpAmp circuit for your application.
Utilize one of our self contained  Ultra-low input modules  or  simply use in conjunction with a basic

Multimeter as an inexpensive alternative to an expensive Picoammeter. 
( Note: Ready modules are AD549 or LMC6001 op-amp based units. * )


  CTVM10PF Gain:  
100pA/Volt  to  10nA/Volt
  CTVS10PF Gain:   100pA/Volt 
   Gain Control (one of the following; option#1 is default):
 
            Option#1.) Manual 20 turn Trim-pot for Min. Gain to Max. Gain, respectfully. 
             Option#2.) Digital; Min. Gain, Interim Gain & Max. Gain selectable. 
             ( The above does not apply to fixed gain modules ) 

  Input Bias current 75fA typical  
  Output Voltage:
10V  
 
Enable / Disable Low-pass filter ( 15Hz cutoff). 
  Enable / Disable High-pass filter ( 500Hz cutoff). 
 
Offset Voltage Null Capability
  Accuracy:  Better than 0.2%  ( 0C  to  50C )
 
Operating Temp Range:   -10C  to  70C 
 
No Frequency Compensation Required
 
Short Circuit Protection
 
Low Power Consumption
  Call for single supply/polarity, PCB only, custom
      application specific or small scale product alternative
      options.


                    
 
Similar models with more or less gain

 ( 2-3 weeks Delivery, Call for order quantities greater than 5 )
                                                                                                                          



   Please contact us and
ask how we can help
   you
design or implement the right module for    
   your needs
.

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CTVS & CTVM Series Modules

CTVM Block Diagram / Documentation
CTVS Block Diagram / Documentation
 


 Applications:
  Picoampere or Microvolt Instrumentation
  Opamp Instrumentation Amplifier
  Thermocouple and Bridge Amplifier
  Low Frequency Active Filter
  Photo Current Amplifier
  Battery-Powered Systems, Standard Cell Buffers
  Electrometer,  Charge Integrator
  Low Current Ammeter   
  Long Term Integrator
  PH Meter , Light Meter
  Proximity Detector
  Logarithmic Amplifier
  Photo-diode Preamplifier
  Low energy measurements
  Low energy electron measurements
   
 
 


Similar models with more or less gain    

 Specifications    Value   Unit      Specifications   Value   Unit  
 Gain - Ctvm10pf   100 to 10000      pA / V      Input capacitance  typ.  1.5     pf  
 Gain - Ctvs10pf   100    pA / V          
 Max. Input Current    40    nA      Input Current Noise   < 1   fA / sqr(Hz)         
 Output voltage range   10   V      Input Voltage Noise   < 20    nV / sqr(Hz)   
 Output Voltage: Max.  Load Current ... typ.   10   mA      Output Voltage Noise   <1    uV / sqr(Hz)  
 Output Voltage: Output Impedance    1.0   KΩ     Operating Temperature   -10 to 70    C
 Max. Output Voltage Drift   < 20  uV / Deg.C    Freq. Response; small signal    100   KHz  
 Max. Input Bias Current ... less than                        0.25   pA      DC Supply Max. Current ... +5VDC Supply       ~200  mA   
 Input Impedance  ... less than   500   Ω            
 Max. Input Offset Current  @25deg.C      < 100     fA    Signal In / Out connector   SMA    female
 Max. Input Offset Current Drift  ..  0 to 70 deg.C   < 30     fA / deg.C        
 Max. Input Offset Voltage  @25deg.C   < 50  uV     Dimensions - L x H x W;    Enclosure B            
 Max. Input Offset Voltage Drift  ..  0 to 70 deg.C   < 2.0     uV / deg.C    Dimensions - L x H x W;    Enclosure D            

Rev.12-14; 1.4