Quadrant photodetector

A high-performance quadrant photodetector featuring an ultra-sensitive, low-noise transimpedance amplifier (TIA). The device is optimized for precise beam positioning and optical displacement measurements. Photodiode parameters are matched to the target wavelength and optical power levels to ensure maximum sensitivity and dynamic range for specific applications.

The standard version includes adjustable BIAS voltage for fine-tuning the photodiode’s operating point.

Applications:

• Precision laser beam alignment

• Interferometry and displacement sensing

• Laser distance measurement (LIDAR)

• Optical beam stabilization

• Tracking systems in optical setups

Documentation

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Interlock (quick response system)

Low-noise, ultra-fast circuit designed to protect laser systems, especially amplifiers, from sudden power drops. The device has a wide range of possibilities for adjusting the operating logic and voltage levels. The default version of the device allows you to choose the reference voltage between external and built-in on the board.

response time: in the basic version 86 ns
input impedance (50 Ω, Hi-Z possible)
reference level adjustment range

Applications: interlock, protection, voltage comparison.

Model	Supply voltage [V]	Max. input signal [V]	Reaction time* [ns]	Reference voltage range [V]
CTR-ILK-I5T	7-15	5	>86	floor - 5.0
CTR-ILK-I3V3T	5-14	3	>80	floor - 3.3
CTR-ILK-I5S	7-10	5	>40	floor - 5.0
CTR-ILK-I3V3T	7-10	3	>40	floor - 3.3

* parameter may depend on output devices

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Analog Adder + second-order filter

Precise, low-noise circuit designed for the most faithful signal reproduction in a wide range of voltages and frequencies. The following features can be customized to the customer's needs:

active second-order filter (low-, high-pass) with a selected cut-off frequency.
input impedance (50 Ω, 75 Ω, Hi-Z)
gain adjustment range (option)

The adder is available in several hardware versions.

Applications: summing analog signals, signal filtering, Hi-Z to 50 Ω adapter.

Model	Frequency [MHz]	Slew rate [V/us]	Noise floor RMS [dBm]	Typ. input bias [mV]	Supply voltage [V]
AO-SLPF-()-ST	DC - 5 MHz	20	< -115	0.1	±2.8 to ±18
AO-SLPF-()-LN*	DC - 40 MHz	27	< -130	0.1	±2.8 to ±18
AO-SLPF-()-MF*	DC - 22.5 MHz	150	< -119	0.2	±2.8 to ±18
AO-SLPF-()-HS*	DC - 50 MHz	3000	< -110	1.6	±3.3 to ±18

* preliminary, parameters may change

Low noise power supply

Symmetrical power supply combining the efficiency of switching converters with low noise thanks to careful selection of filtering technology. Available in various voltage and current variants.

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Model	Supply voltage [V]	Output voltage tolerance [%]	Max. current [A]	Safety fuse
PW-05-1	5	5	1,0	present
PW-12-08	12	5	0,8	present
PW-15-09	15	3	0,9	present
PW-24-1	24	3	0,7	present

response time: in the basic version 86 ns

input impedance (50 Ω, Hi-Z possible)

reference level adjustment range

Applications: interlock, protection, voltage comparison.

* parameter may depend on output devices

Analog Adder + second-order filter

Precise, low-noise circuit designed for the most faithful signal reproduction in a wide range of voltages and frequencies. The following features can be customized to the customer's needs:

active second-order filter (low-, high-pass) with a selected cut-off frequency.

input impedance (50 Ω, 75 Ω, Hi-Z)

gain adjustment range (option)

The adder is available in several hardware versions.

Applications: summing analog signals, signal filtering, Hi-Z to 50 Ω adapter.

Low noise power supply

Symmetrical power supply combining the efficiency of switching converters with low noise thanks to careful selection of filtering technology. Available in various voltage and current variants.

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