Molecular Devices Axon Axoclamp 900A


Axon Axoclamp 900A

Following the Axoclamp tradition, this amplifier model is a complete microelectrode current clamp and voltage clamp amplifier, useful for a wide range of intracellular microelectrode recording techniques. 
The Axoclamp™ 900A Microelectrode Amplifier represents the latest generation of our Axoclamp amplifier family. This model features many enhancements that improve its recording capability, make the amplifier easier to use, and help your experiments last longer.
Axon Axoclamp 900A
Depth 14.3 in
Height 4.3 in
Width 19 in
Power Requirements 100-240 VAC 50-60 Hz, 30 W max
Weight 9.5 lbs
Additional Specifications Headstage (in.) 0.75 (H) x 0.70 (W) x 2.25 (D) 
Rack use Standard 19" rack-mount (2U) with handles 
Benchtop use Bayonet feet 
Safety CE marking (Conformité Européenne)


  • Five modes of operation provide the broadest range of electrophysiological applications 
  • Software control of all amplifier settings for automated optimization features, reduction of manipulation steps, and convenient, reliable telegraphing 
  • Optional SoftPanel allows amplifier control using knobs and buttons for a more conventional feel to amplifier control 
  • Large output compliance range (±180 V in TEVC and HVIC modes) enable passing larger currents and ensures faster clamp speeds 
  • Wide AC voltage clamp gain ranges in TEVC and dSEVC modes for excellent voltage control 
  • Space-saving headstage design for easier access to the preparation on a crowded microscope stage 
  • New dSEVC design with more stability and faster clamp provides an excellent alternative to standard continuous single-electrode voltage clamping 
  • Pipette Capacitance Compensation neutralizes the contribution of the glass pipette and the pipette holder to the capacitance of the circuitry 
  • Automatic oscillation detection prevents damage to a cell when electrical feedback occurs 
  • Selectable output gain with 11 settings to scale the output signal to the desired level 
  • Audio monitor for acoustic tracking of the signal while you are busy looking down a microscope 
  • Fine-tunable 4-pole Bessel and Butterworth low-pass filters act as anti-aliasing filters and can be used to pre-condition the output signal 
  • Buzz feature with a hand-held remote switch facilitates breaking through cell membranes 
  • Two included pipette holders of different barrel lengths accept glass pipettes in most standard dimensions 
  • User guide written by scientific consultants, with the assistance of Axon Instruments staff, for straightforward start-up and as an in-depth reference 


Axoclamp 900A

Axoclamp 900A

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