Low noise amplifiers, 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.

Electro Optical Components ships all FEMTO orders
FedEx 2 day, but only bills you at the FedEx Ground rate.

FEMTO Ultra Low Noise Current Amplifier

Current Amplifier with 400 MHz Bandwidth

Products include:

Current amplifiers - fixed & variable gain transimpedance amplifiers - TIA
Voltage amplifiers - low frequency, wideband and logarithmic voltage amplifiers
High Speed GHz amplifiers
Custom amplifiers
Photoreceivers - ultra-fast fixed & variable gain, balanced and custom photoreceivers (with or without photodetector modules)
Lock-in amplifiers
Remote Power Supply

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 Selection Guides:

Amplifier Selection Guide (pdf)

Photoreceiver Selection Guide (pdf)

Variable Gain Current Amplifier Comparison

FEMTO Catalog:

2010 FEMTO Catalog (pdf)

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
LCA-M Series Miniature Fixed Gain	1 KHz-400KHz	3- 65 fA	5 x 10⁹ to 1 x 10⁷

Miniature Fixed Gain Amplifier

	3-dB Bandwidth (DC….)	Noise Current /√Hz	Transimpedance Gain V/A	Remote Control
LCA-M Series Miniature Fixed Gain	1 KHz-400KHz	3- 65 fA	5 x 10⁹ 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	2.6 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

High Speed GHz Amplifier

	Bandwidth	Input Noise /√Hz	Gain	Remote Control
HSA-X Series	10 KHz - 2 GHz	330 - 660 pV	20 - 40 dB
HSA-Y Series	10 KHz - 2 GHz	330 - 660 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

	Spectral Range	Bandwidth	Input Noise /√Hz	Gain	Input	Remote Control
FWPR-20 Series	320 - 1700 nm	DC - 20 Hz	0.7 - 7.5 fW	10¹¹-10¹²	Free Space
LCA-S-400K Series	400 - 1700 nm	DC - 400 KHz	75 - 130 fW	10⁷	Free Space
OE-200 Series Variable Gain	190 - 1700 nm	DC - 500 KHz	10 - 17 fW	10³ - 10¹¹	FC, SC, SMA	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

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