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Physimetron

Physimetron is a specialist on development and production of compact low-noise preamplifiers.  Focus is on modular transimpedance- and charge-amplifiers. The company is based in Berlin, Germany.  Custom-specific solutions are also developed.

On-Trak is Physimetron’s distribution partner for North America.

Product Details

Physimetron provides lines of amplifiers:

Well-suited for standard laboratory use.  BNC input and output provide convenient connection.  A matching power supply is available as accessory. The cased amplifiers have dimensions of approximately 84 x 55 x 24 mm

Current Amplifiers in a compact Aluminum Case

Cased Amplifiers

Transimpedance Amplifiers Fixed Gain

Model
Gain
Bandwidth
A6201
A6202
A6203
A6204
A6205
A6206
1e7 V/A
1e8 V/A
1e9 V/A
1e10 V/A
1e11 V/A
1e12 V/A
DC-500 kHz
DC-50 kHz
DC-5 kHz
DC-400 Hz
DC-40 Hz
DC-3 Hz

Transimpedance Amplifier Variable Gain

Model
Gain
Bandwidth
A6221
1e7 V/A
1e8 V/A
1e9 V/A
DC-200 kHz
DC-20 kHz
DC-2 kHz

Photoreceivers

100 fW/√Hz
40 fW/√Hz
12 fW/√Hz
4 fW/√Hz
1.5 fW/√Hz
0.8 fW/√Hz
DC-500 kHz
DC-50 kHz
DC-5 kHz
DC-400 Hz
DC-40 Hz
DC-3 Hz
1e7 V/A
1e8 V/A
1e9 V/A
1e10 V/A
1e11 V/A
1e12 V/A
Model
Gain
Bandwidth
Min. NEP
A6401-SI
A6402-SI
A6403-SI
A6404-SI
A6405-SI
A6406-SI

Spectral Range 400 bis 1100 nm, Min. NEP @ 850 nm, Active Area 1.0 mm2

Photoreceiver with InGaAs-Photodiode in F-SMA Receptacle

100 fW/√Hz
40 fW/√Hz
12 fW/√Hz
4 fW/√Hz
1.5 fW/√Hz
0.8 fW/√Hz
DC-500 kHz
DC-50 kHz
DC-5 kHz
DC-400 Hz
DC-40 Hz
DC-3 Hz
1e7 V/A
1e8 V/A
1e9 V/A
1e10 V/A
1e11 V/A
1e12 V/A
Model
Gain
Bandwidth
Min. NEP
A6401-SI
A6402-SI
A6403-SI
A6404-SI
A6405-SI
A6406-SI

Spectral Range 900 bis 1700 nm, Min. NEP @ 1550 nm, Active Area Ø 500 µm

Charge Amplifiers in a compact aluminum case

Charge Amplifiers Fixed Gain

Model
Gain
Bandwidth
A6503
A6504
1e11 V/C
1e13 V/C
200 Hz-20 MHz
500 Hz-15 MHz

Integrating 4-Channel Charge Amplifier with 16-bit ADC

Model
Gain
Gate Time
A759-005
1e12 V/C
1 ms - 1 s
 

The A759-005 combines high dynamic range with 16-bit resolution, measuring input currents of 10 nA to 10 pA Full Scale.   Maximum sampling rate is 1 kHz. Output via serial RS-422 interface with 1 MBaud data rate. 

Static Charge Amplifier Variable Gain 

The A7530 provides variable gain swichtable over 7 decades. It has a very low input bias current of < 100 fA.  Input pulse currents of up to 500 mA peak can be integrated without loss of linearity. 

Model
Gain
Bandwidth
A7530
1e4 bis 1e10 V/C
DC-10 kHz

Mini-modules

Compact requiring minimal space.  It can be used near to the detector, even in complex 

instruments with little space left.  Due to this input cable length can be reduced to a minimum, thus reducing external interference and noise generated by cable capacitance.  The mini-modules have dimensions of approximately 40 x 40 x 10 mm (fixed gain) or approximately 60 x 60 x 10 mm (variable gain), respectively.

Transimpedance Amplifiers Fixed Gain

Model
Gain
Bandwidth
A1201
A1202
A1203
A1204
A1205
1e7 V/A
1e8 V/A
1e9 V/A
1e10 V/A
1e11 V/A
DC-500 kHz
DC-50 kHz
DC-5 kHz
DC-400 Hz
DC-40 Hz

Transimpedance Amplifier Variable Gain

Model
Gain
Bandwidth
A1221
1e7 V/A
1e8 V/A
1e9 V/A
DC-200 kHz
DC-20 kHz
DC-2 kHz

Gain is electronically switchable in three Steps.

Charge Amplifiers

Model
Gain
Bandwidth
A1503
A1504
1e11 V/C
1e13 V/C
200 Hz - 20 MHz
500 Hz - 15 MHz

Photoreceiver with Silicon-Photodiode

Model
Gain
Bandwidth
Min. NEP
A1301-SI
A1302-SI
A1303-SI
A1304-SI
A1305-SI
1e7 V/A
1e8 V/A
1e9 V/A
1e10 V/A
1e11 V/A
DC-500 kHz
DC-50 kHz
DC-5 kHz
DC-400 Hz
DC-40 Hz
100 fW/√Hz
40 fW/√Hz
12 fW/√Hz
4 fW/√Hz
1.5 fW/√Hz

Spectral Range 320 bis 1100 nm, Min. NEP @ 900 nm, Active Area 1.1 mm2.

Photoreceiver with InGaAs-Photodiode

Model
Gain
Bandwidth
Min. NEP
A1301-IN
A1302-IN
A1303-IN
A1304-IN
A1305-IN
1e7 V/A
1e8 V/A
1e9 V/A
1e10 V/A
1e11 V/A
DC-500 kHz
DC-50 kHz
DC-5 kHz
DC-400 Hz
DC-40 Hz
70 fW/√Hz
25 fW/√Hz
11 fW/√Hz
9 fW/√Hz
8 fW/√Hz

Spectral Range 900 bis 1700 nm, Min. NEP @ 1550 nm, Active Area Ø 500 µm.

Custom-Designed Solutions

If required, development of custom-built amplifiers is offered, whether it is an adapted mechanical design or new electronics.  On-Trak and Physimetron will find an optimal solution for your measurement task in close collaboration with you.

Please contact us for additional detail on these products and others