The A7590D is an isolated high voltage regulator specifically designed for SiPM bias. It has a built in temperature compensation controller with programmable coefficient.
The module can be digitally controlled by UART and I2C. Output voltage could be also controlled proportionally to an analog input, providing a voltage on a pin. A7590D can provide up to 50 mA and the output voltage could be regulated between 20 V and 80 V with a resolution of 1 mV. It is possible to set a programmable ramp starting from 1.2 V to the setpoint with configurable slope. The module is equipped with 24 bit ADC to monitor output voltage and output current. A PID controller can be enabled to exploit the high resolution of the ADC to stabilize the output.
The module output is electrically isolated from the power supply and control interface. The module indeed can be used as floating power supply, or, grounding the negative or positive output, as a non-isolated positive or negative power supply.
2-75 V Output Voltage
Programmable output ramp starting from 1.2V to output voltage
50 mA maximum output current
1 mV Output Step Voltage
Low noise, 560 μVrms at 50mA
Isolated output. It can be used to provide both positive and negative power supply
I2C, UART, USB and Analog Voltage control
HV SiPM temperature compensation with remote temperature sensing
100 μV resolution voltage monitor
100 nA resolution current monitor
0.05°C resolution temperature monitor
Programmable over-current protection
Open source libraries in C/C++ and Python compatible with Arduino and Raspberry PI
Working on Windows and Linux
Zeus User interface to control multiple devices both via I2C, UART or USB
THT and SMT compatible footprint