Current Amplifiers
Most of the light detectors deliver a current proportional to the intensity of light. This current needs to be transformed to a voltage with very low noise electronics. This is the purpose of our current amplifiers. Our models covers a wide range of amplifiers from ultra low noise and low frequency to GHz bandwidth amplifiers. Some of them has variable gain to accommodate to your light level. If further amplification is necessary please see our section with Voltage amplifiers and Lock-in amplifiers.
These amplifiers are sorted by bandwidth.
High Speed, 400 MHz
Features Minimum Input Noise 20 pA /√Hz Bandwidth up to 400 MHz Gain up to 5*10^3 V/A Flat Frequency Response Stabilized and Adjustable...
Variable gain, up to 200 MHz
Features Transimpedance Gain from 10^2 to 10^8 V/A Bandwidth up to 200 MHz Rise Time down to 1.8 ns Internal Signal Filters Adjustable Bias...
High Speed, 4 MHz
Features Minimum Input Noise 3.5 pA /√Hz Bandwidth up to 4 MHz Gain up to 5*10^5 V/A Flat Frequency Response Stabilized and Adjustable...
Ultra Low Noise, 40 kHz
Features Extremely Low Input Noise Current of 19 fA/√Hz Fixed Gain 1×10^8 V/A Low Pass Filter 40kHz Flat frequency...
Ultra Low Noise, 200 kHz
Features Extremely Low Input Noise Current of 40 fA/√Hz Fixed Gain 2×10^7 V/A Low Pass Filter 200kHz Flat frequency...
Ultra Low Noise, 400 kHz
Features Extremely Low Input Noise Current of 65 fA/√Hz Fixed Gain 1×10^7 V/A Low Pass Filter 400kHz Flat frequency...
Variable Gain, up to 400 Hz
Features 0.4 fA peak-to-peak noise Transimpedance gain from 10^4 to 10^13 V/A 240 dB dynamic range for sub-fA to mA measurements Adjustable...
High Speed, 2 MHz
Features Minimum Input Noise 340 pA /√Hz Bandwidth up to 2 MHz Gain up to 10^6 V/A Flat Frequency Response Stabilized and Adjustable...
Variable gain, up to 500 kHz
Features Transimpedance Gain from 10^3 to 10^11 V/A Input Noise Down to 4.3 fA/√Hz Bandwidth up to 500 kHz Rise Time down to 700...
Ultra Low Noise, 200 Hz
Features Extremely Low Input Noise Current of 1.5 fA/√Hz Fixed Gain 10^11 V/A Low Pass Filter 200 Hz Flat frequency response EMI-shielded...
Ultra Low Noise, 10 kHz
Features Extremely Low Input Noise Current of 10 fA/√Hz Fixed Gain 5×10^8 V/A Low Pass Filter 10kHz Flat frequency...
Ultra Low Noise, 200 Hz
Features Extremely Low Input Noise Current of 1.5 fA/√Hz Fixed Gain 10^10 V/A Low Pass Filter 200 Hz Flat frequency response EMI-shielded...
High Speed, 100 MHz
Features Minimum Input Noise 3.9 pA /√Hz Bandwidth up to 100 MHz Gain up to 5*10^4 V/A Flat Frequency Response Stabilized and Adjustable...
Ultra Low Noise, 30 Hz
Features Extremely Low Input Noise Current of 0.5 fA/√Hz Fixed Gain 10^12 V/A Low Pass Filter 30 Hz Flat frequency response EMI-shielded...
High Speed, 1 MHz
Features Minimum Input Noise 270 fA /√Hz Bandwidth up to 1 MHz Gain up to 10^6 V/A Flat Frequency Response Stabilized and Adjustable...
Ultra Low Noise, 20 kHz
Features Extremely Low Input Noise Current of 20 fA/√Hz Fixed Gain 2×10^8 V/A Low Pass Filter 20kHz Flat frequency...
High Speed, 200 MHz
Features Minimum Input Noise 5.3 pA /√Hz Bandwidth up to 200 MHz Gain up to 2*10^4 V/A Flat Frequency Response Stabilized and Adjustable...
Ultra Low Noise, 2 Hz
Features Extremely Low Input Noise Current of 0.18 fA/√Hz Variable Gain 10^12 V/A and 10^13 V/A Variable Low Pass Filter 2 Hz, 0.3 Hz and 0.1...