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Amplifiers - Current and Voltage
Low noise, high speed, wideband, lock-in
Photoreceivers, photodetector modules

FEMTO photoreceivers and amplifiers - with or without photodetector modules - are "sophisticated tools for signal recovery" in scientific and industrial applications. They are developed and continually upgraded to be the best products available. FEMTO is a leading manufacturer of high quality low-noise amplifiers.
Products include:

HQA Charge Amplifier

FEMTO Ultra Low Noise Current Amplifier

Current Amplifier with 400 MHz Bandwidth

Electro Optical Components ships all FEMTO orders FedEx 3 day, but only bills you at the FedEx Ground rate.

New Products from FEMTO

FEMTO offers customized solutions in any quantity.
They also offer OEM versions of every standard amplifier tailored to meet customer-specific requirements. A common application is the Custom Photoreceiver where a specific photodiode is integrated in the FEMTO amplifier. The noise and capacitive effects of the cable connecting the photodiode are eliminated. This significantly improves the overall performance of the photodiode / amplifier. Please contact us with your needs.

Use the FEMTO Selection Guides to help you choose the best amplifier / photoreceiver for your application:

FEMTO Catalog: 2010 FEMTO Catalog (pdf)

FEMTO Application Notes

 

Current Amplifiers (TIA - Transimpedance Amplifier)

Ultra-Low Noise Current Amplifier

3-dB Bandwidth
(DC....)
Noise Current
/√Hz
Transimpedance
Gain   V/A
Remote
 Control
DLPCA-200 Variable Gain 1.2 - 500 KHz  4.3 fA - 13 pA 1 x 1011 Max. YES
DLPCA-D-S1 - 2 Channel Variable gain 1.5 - 2 KHz 4.5 - 500 fA 1 x 109 Max. YES
DDPCA-300 1.5 - 450 Hz 1.5 fA - 10 nA 1 x 1013 Max. YES
LCA-Series Fixed Gain 1 Hz - 400 KHz 0.18 - 65 fA 1 x 1013 to 1 x 107   

Variable Gain Low Noise Current Amplifier

3-dB Bandwidth
(DC....)
Noise Current
/√Hz
Transimpedance
Gain   V/A
Remote
 Control
DLPCA-200 1.2 - 500 KHz  4.3 fA - 13 pA 1 x 1011 Max. YES
DLPCA-D-S1 - 2 Channel 1.5 - 2 KHz 4.5 - 500 fA 1 x 109 Max. YES
DDPCA-300 1.5 - 450 Hz 1.5 fA - 10 nA 1 x 1013 YES

High Speed Current Amplifier

  3-dB Bandwidth
(DC....)
Noise Current
/√Hz
Transimpedance
Gain   V/A
Remote
 Control
DHPCA-100 Variable Gain 0.22 - 200 MHz  55 fA - 200 pA 1 x 108 Max. YES
HCA- Series Fixed Gain 1 MHz - 200 270 fA - 4.5 pA 1 x 106 to 2 x 104   

Variable Gain High Speed Current Amplifier

  3-dB Bandwidth
(DC....)
Noise Current
/√Hz
Transimpedance
Gain   V/A
Remote
 Control
DHPCA-100 0.22 - 200 MHz  55 fA - 200 pA 1 x 108 Max. YES

Charge Amplifiers

  3-dB Bandwidth
(DC....)
Noise Current
/√Hz
Transimpedance
Gain   V/A
Remote
 Control
HQA-15M-10T 250Hz - 15MHz 90x10-21 C 1 x 1013 Max.  

 

Voltage Amplifiers

Low Frequency Voltage Amplifier

Bandwidth Input Noise /√Hz Gain Remote
 Control
DLPVA-100- Series Varible Gain DC - 100 KHz 0.4 - 6.9 nV 20 - 100 dB YES

Wideband Voltage Amplifier

Bandwidth Input Noise /√Hz Gain Remote
 Control
DHPVA- Series Variable Gain  DC - 200 MHz 2.3 nV 10 - 60 dB YES
HVA - Series DC - 500 MHz 0.9 - 4.8 nV 20 - 60 dB  

Logarithmic Wideband Voltage Amplifier

  Bandwidth Input Noise /√Hz Gain Remote
 Control
HLVA-100 100MHz 2 nV 60 - 80 dB YES

Technical Notes: Voltage Amplifier Comparison

 

High Speed GHz Amplifier

Bandwidth Input Noise /√Hz Gain Remote
 Control
HSA-X Series 10 KHz - 2.5 GHz 330 - 670 pV 20 - 40 dB  
HSA-Y Series 10 KHz - 2 GHz 330 - 680 pV 20 - 60 dB  
DUPVA-1 Series Variable Gain 1 KHz - 1.2 GHz 330 - 450 pV 20 - 70 dB YES

 

Custom Amplifers

Custom Amplifier Modules Designed for your special amplifier requirement

 

Photoreceivers

Photoreceivers

Spectral Range Bandwidth Input Noise /√Hz Gain Input Remote
 Control
FWPR-20 Series 320 - 1700 nm DC - 20 Hz Down to 0.7 fW 1011-1012 Free Space  
PWPR-2K Series 320 - 1700nm    DC - 2 KHz 9 - 10 fW 109-1010 FS, FC, FSMA  
LCA-S-400K Series 400 - 1700 nm DC - 400 KHz Down to 75 fW 107 Free Space  
OE-200 Series Variable Gain 190 - 1700 nm DC - 500 KHz Down to 6 fW 103 - 1011 FC, Free Space YES
OE-300 Series Variable Gain 320 - 1700 nm DC - 200 MHz Down to 47 fW 102 - 108 FC, Free Space YES

High Speed Photoreceivers

Spectral Range Bandwidth Input Noise /√Hz Gain Input Remote
 Control
HCA-S-200M Series - 200 MHz 320 - 1700 nm DC - 200 MHz 6 - 12 pW 2 x 104 Free Space  
HCA-S-400M Series - 400MHz 320 - 1700 nm DC - 400 MHZ 21-40 pW 5 x 103 Free Space  
HSA-X-S Series - 2 GHz  320 - 1700 nm 10 KHz - 2 GHz 14 - 26 pW 5 x 103 Free Space  

Balanced Photoreceivers

Spectral Range Bandwidth Input Noise /√Hz Gain Input Remote
 Control
OE-200-S Variable Gain 320 - 1060 nm DC - 500 KHz 10 fW - 37 pW 103 - 1011 FC, SC, SMA YES
HCA-S - 4 MHz 320 - 1060 nm DC - 4 MHz 0.6 pW 5.7 x 105 Free Space  
HCA-S - 100 MHz
(also 200, 300 & 400 Mhz)
320 - 1000 nm DC - 100 (to 400) MHz 6.9 pW 50 x 103 Free Space  

Custom Photoreceivers

Custom Photoreceivers Designed for your special photoreceiver requirement

 

Lock In Amplifier

Working
Frequency
Time Constant Sensitivity Gain
Accuracy
Remote
 Control
 
LIA-MV-150 Series - Miniature Module 10 Hz - 45 KHz 3 ms - 10 s 3 μV - 100 nV +2% YES Standard or true Differential Input
LIA-MV(D)-200 Series Module  5 Hz - 120 KHz 300 μs - 10 s 3 μV - 1 V +2% YES Single or Dual Phase
LIA-BV(D)-150 Series Plug in Board 5 Hz - 120 KHz 300 μs - 10 s 3 μV - 1 V +2% YES Single or Dual Phase
SOM-1 Reference Oscillator
   Module
For LIA-MV(D)200 & LIA-BV(D)-150
SC-LIA-S Rack System 8 slot LIA-BV rack system
MK-LIA-3-A Module Housing Housing for the LIA-BV(D) Series

 

Remote Low Ripple Power Supply

PS-15-25-L (US) Low Ripple Power Supply 120 VAC  
PS-15-25-L (EU) Low Ripple Power Supply 220 - 240 VAC Replaces PS-15-2-L

 

Amplifier Interface Software

LUCI-10 Interface Software Windows PC

Accessories

Low Noise Cable
LIA-BV-150 Lock-in Amplifier Euro Connector
LEMO Connectors
Fiber Adapters

FEMTO Product Catalog (pdf)

Application Notes: