Anfatec Instruments AG

Measurement Science and Technology &
Scanning Probe Microscopy

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Precision preamplifier VV

 

Typical applications

  •   tunnel current detection, conduction AFM, AES

    •  
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Technical data


 Input OPV
Maximum current
Amplification
User input offset voltage
Band width
Supply voltage
Board dimensions		 OPA 128 
10 nA or 100nA 
1 or 100 
Offset voltage (= voltage @ input) 
customer specific
+/- 15V 
40 mm x 20 mm

Description

This small highly-sensitive board is a current voltage converter for extra small current detection directly at the place of their origin. It bases on the extremely low-noise  operational amplifier OPA128 from Burr Brown. At the measurement point, external voltages can be added. Therefore, this preamplifiers is ecspecially suitable for the detection of tunneling currents.