Sensitive Electrical Measurements

Electrometers, picoammeters, and nanovoltmeters


Keithley Model 2182A Nanovoltmeter

  • Stable, low noise, voltage measurements
  • Also measures current, resistance, and temperature
  • Dual channels
  • Wide range of response times
  • Characterize low resistance materials and devices

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Keithley Ultra-low resistance configurations


Keithley Ultra-low Resistance Configurations

  • Resistance measurement ranges include 10n ohm -100M ohm
  • Resistance measurement sensitivity of 1µ ohm or 100n ohm
  • 3-1/2 digit to 7-1/2 digit resolution
  • Difference conductance measurements (622x/2182A)
  • Delta mode for low noise measurements (622x/2182A)


Keithley 6200 Series Ultra-sensitive current soures image


Keithley 6200 Series Ultra-sensitive Current Souces

  • AC and DC current sources combine ease of use with exceptionally low current noise
  • Low current sourcing is critical to applications in test environments ranging from R&D to production, especially in the semiconductor, nanotechnology, and superconductor industries
  • High sourcing accuracy and built-in control functions make the Models 6220 and 6221 ideal for applications like Hall measurements, resistance measurements using delta mode, pulsed measurements, and differential conductance measurements



Keithley 6400 Series Picoammeters

  • Measure current to <1fA
  • Voltage and resistance measurement options
  • Voltage burden <200µV (most models)
  • 5-1/2 to 6-1/2 digit resolution (most models)
  • Feedback ammeter design for higher accuracy




Keithley 6500 & 6400 Series High Resistance / Low Current Electrometers

  • Measure low current & high voltage, resistance, and charge
  • Resistance measurements to 10P ohm
  • Current sensitivity as low as 400aA
  • Voltage burden as low as 200µV
  • Superior accuracy and sensitivity