Expected Current
Estimate the minimum and maximum detector current.
FEMTO TECHNOLOGY CENTER
Current / Transimpedance Amplifiers
Explore low-noise current amplifiers for photodiodes, APDs, PMTs, ion detectors, leakage-current measurement and other precision current-sensing applications.
TECHNOLOGY OVERVIEW TYPICAL APPLICATIONS FEMTO current amplifiers are optimized for extremely small detector currents in optical, scientific and industrial measurement systems. Precision low-current measurement using ultra-low-noise transimpedance technology. Precision low-current measurement using ultra-low-noise transimpedance technology. Precision low-current measurement using ultra-low-noise transimpedance technology. Precision low-current measurement using ultra-low-noise transimpedance technology. Precision low-current measurement using ultra-low-noise transimpedance technology. Precision low-current measurement using ultra-low-noise transimpedance technology. HOW TO SELECT Choose the amplifier by evaluating the expected detector current, required output voltage, measurement bandwidth, detector capacitance and acceptable noise level. Choose the gain required to produce a usable output voltage. Confirm that the selected gain supports the required signal bandwidth. Account for photodiode and cable capacitance that may reduce bandwidth or stability. Select the lowest practical noise level for the target signal.Where Current Amplifiers Are Used
Photodiodes
APD Detectors
PMT
Ion Detectors
Leakage Current
Beam Monitoring
Select the Right Current Amplifier
Output Voltage
Bandwidth
Detector Capacitance
Noise
Precision Current Measurement
Current and transimpedance amplifiers convert small detector currents into measurable voltage signals. The correct amplifier must be selected by considering expected current, gain, bandwidth, detector capacitance, noise and output-voltage range.
Applications
Photodiodes, APDs, PMTs, ion detectors and leakage-current measurement.
How to Select
Evaluate current range, transimpedance gain, bandwidth, noise and detector capacitance.
Series
Compare variable-gain, fixed-gain, high-speed and high-current amplifier families.
AI Engineering
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