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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.

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  
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: