PMT Transimpedance Amplifier

Overview
Specs
Graphs
Pin Diagrams
Feedback

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The TIA60's connections include an SMA input, a 4-pin power socket, and a BNC output.

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The image above shows how to use the included screwdriver to adjust the DC offset.

Features

Transimpedance Gain: 30 200 V/A
Large Operation Bandwidth: DC to 60 MHz
Low Input Current Noise: 4.8 pA/√Hz @ 1 MHz
Designed for Multiphoton and Other Laser Scanning Microscopies
Ideal for Hamamatsu H7422, H10720, and H10721 Series PMTs

Thorlabs' TIA60 Transimpedance Amplifier is designed to amplify the output signal from a photomultiplier tube (PMT), PIN photodiode, or other devices that require an amplified current to voltage signal. It offers a large operational bandwidth range from DC to 60 MHz (3 dB) and low noise output (4.8pA/√Hz @ 1 MHz). A trim pot, accessible through a hole in the top of the amplifier (see image to the right), provides a DC offset adjustment to improve the dynamic range of the data collection system.

The TIA60 can be powered by the KPS101 Power Supply Unit (sold below). Internal electronics of the TIA60 regulate the power to the amplification circuitry, isolating the performance of this amplifier from electrical noise that may be inherent to the power source.

The compact amplifier housing is designed to be mounted close to the detector in order to reduce the noise coupled into the unamplified signal between the detector and the amplifier. It comes with an SMA to BNC adapter, a 4-pin to power jack adapter, and a trim pot adjuster. M3 screws are also included for mounting the amplifier to the Hamamatsu H7422 series PMT.

This amplifier is fully compatible with Hamamatsu's H7422, H10720, and H10721 series PMTs, but the mounting hole pattern will only accommodate the H7422 series. The TIA60 amplifier is also compatible with our biased photodetectors and passive electrical filters.

Specifications	Minimum	Typical	Maximum
AC Performance
Bandwidth (3 dB, C_in = 4 pF)^a	-	60 MHz	-
Rise/Fall Time (10% to 90%)	-	5.5 ns	-
Settling Time (3%, 0.5 V Output)	-	16 ns	-
Transfer Characteristics
Total Transimpedance (Combined Stages, DC)^b	29 000 V/A	30 200 V/A	32 000 V/A
Transresistance (Input Stage Z-Amp, DC)	-	6.04 kΩ	-
Input
Linear Input Range, 0 V Bias	-	-	±50 µA
Maximum Input^c	-	-	±500 µA
DC Input Impedance	-	33 Ω	-
Input Reference	-	0 V	-
Noise
Input Current Noise (1 MHz, C_in = 4 pF)^a	-	4.8 pA/√Hz	-
Total Input RMS Noise (DC to 60 MHz)^a	-	50 nA	-
Output
DC Bias (50 Ω Load)	-0.15 VDC	0 VDC	1.5 VDC
Output Range (50 Ω Load)	-1.5 V	-	1.5 V
Impedance (DC to 60 MHz)	-	50 Ω	-
Return Loss (DC to 60 MHz)	15 dB	-	-
Slew Rate	-	625 V/µs	-
DC Performance
Offset Voltage Drift (at Output)	-	±103 µV/°C	-
Power Supply
Input Voltage	9 V	12 V	15 V
Input Current	-	65 mA	100 mA
Physical
Operating Temperature	5 °C	-	55 °C
Storage Temperature	-40 °C	-	55 °C
Dimensions (L x W x H)	3.78" x 2.20" x 1.06" (95.9 mm x 55.9 mm x 26.8 mm)
Weight	100 g

Bandwidth and equivalent input current noise are typical values, which depend on the source capacitance. Keep the source capacitance as low as possible by using short cables at the input to achieve best possible bandwidth and noise performance.
Positive Gain. Current is considered positive flowing into the amplifier input, and produces a resulting positive output voltage.
A significant chance of damaging the amplifier exists if operating above this specification.

The graphs below represent measured data using the KPS101 as the power source. For a file containing the raw data, click here.

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Output Voltage Signal

BNC Female

50 Ω Recommended Termination

Input Current Signal

Input Power Signal

Pin	Description
1	+V Input
2	NC
3	NC
4	Ground

Posted Comments:

paulg (posted 2018-02-24 14:38:29.02)

Hi, we want to also know the frequency response below 100 kHz (to 10 kHz). Can you please provide this too? Thank you!

nbayconich (posted 2018-03-15 10:58:47.0)

Thank you for contacting Thorlabs. The response is essentially flat across the frequency range of 10kHz to 100khz. The frequency response, 3dB bandwidth and noise floor can slightly change when using different connection cable lengths. I will reach out to you directly with test data regarding the frequency response.

jugon.shin (posted 2018-02-05 23:42:51.883)

Dear THORLABS. Hi, we are using the TIA60 with PMTss, also we are using the KPS101 as a power supplier for TIA60. Now, we adjusted a initial signal position at the 0.01V using by a Trim Pot Adjuster, then the output voltage was going down from 0.01V to 0.005V, when light source was detected. We would like to ask about the output signal we got. Could we use the TIA60 right way? and Could we get the manual about TIA60?

tfrisch (posted 2018-02-06 09:39:55.0)

Hello, thank you for contacting Thorlabs. KPS101 is the recommend power supply unit for TIA60. The manual is available below through the Docs icon, but I will also reach out to you directly about the set up and using the TIA60 with the PMTSS.

joseph.raimondo (posted 2017-12-11 18:50:49.753)

Hi, we are attempting to use the TIA60 together with a Hamamatsu H10770PA-40 PMT, is this trans-impedence amplifier compatible the PMT as we are struggling to get it working? Many thanks, Joseph

tfrisch (posted 2017-12-27 04:37:28.0)

Hello, Joseph. Thank you for contacting Thorlabs. While I don't have a Hamamatsu H10770PA-40 on hand to test, I see that the max output current is about 2uA, only a little less than PMTSS. I will reach out to you directly to troubleshoot.

johanna.tragardh (posted 2016-05-23 16:27:50.757)

We are using the TIA60 together with the Thorlabs PMTSS PMT. (We are connecting the PMT to the amplifier with the supplied BNC to SMA cable and driving them from the same 15V source.) It seems that this combination results in an excessive noise level. Already at very low PMT gain and light levels the amplifier is completely saturated and/or there is excessive number of voltage spikes in the signal. (We have tested the PMT and TIA60 separately and they function as expected). Is there a problem specific to this amplifier/PMT combination?

besembeson (posted 2016-05-25 10:23:06.0)

Response from Bweh at Thorlabs USA: You can in principle use these together as the KPS101 that is used for the TIA60 should have enough power if proper wiring is done, which may not be the case with your setup now. We can actually provide a special version of the PMTSS with the amplifier and power supply integrated that should give you the desired performance. Or you may test using a separate power supply for the PMTSS. I will follow-up with you.

bernd.polder (posted 2015-11-23 16:21:53.97)

Dear Ladies and Gentlemen, I am looking for a transimpedance amplifier with a large operating temperature range. Could you please give me further information about the thermal behaviour of the TIA60? Thank you very much With best regards Bernd Polder Inertial Sensors MEMS Technologies Sensor Business Group TDK-EPC AG & Co. KG A TDK Group Company Beeskowdamm 3- 11 14167 Berlin Telephone: +49 30 890 4055 5345 Fax: +49 3329 6068 15 mailto: bernd.polder@epcos.com www.global.tdk.com · www.epcos.com Headquarters: Berlin ∙ Commercial register of the local court (Amtsgericht): Charlottenburg ∙ HRA 28220 B General Partner: EPCOS AG Headquarters: Munich ∙ Commercial register of the local court (Amtsgericht): Munich ∙ HRB 127250 Chairman of the Supervisory Board: Dr. Werner Faber Management Board: Joachim Zichlarz, Chairman ∙ Joachim Thiele · Dr. Norbert Hess · Christian Block

besembeson (posted 2015-11-25 02:19:43.0)

Response from Bweh at Thorlabs USA: Our Germany division will provide this to you via email.

daniel.o-connor (posted 2015-04-29 16:53:23.86)

I have a number of biased Si photodiodes e.g. DET100A DET10A and was wondering on the compatibility of this amplifier (TIA60) with them to boost their output when observing low power beams and scatterred light that is modulated at high frequency (close to MHz). I am aware of the PDA200C for photodiodes but I wish to sample beyond 1 MHz if possible to avoid undersampling the signals.

jlow (posted 2015-04-29 03:40:00.0)

Response from Jeremy at Thorlabs: The TIA60 can be used with the DET series detector. Please make sure the cable between them is as short as possible (one short SMA to BNC cable is included with the TIA60).

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