The TECLD200MA203D combines a high efficiency TEC controller and a low noise laser driver into one compact module without sacrificing the performance of each one. All the input analog parameters can be set,and the output analog signals can be read, by a digital port. Thus, the 2 pin digital port has saved numerous dedicated analog port pins as found in many conventional analog modules.

The TEC controller comes an auto PID compensation network, it saves the effort to tune the network for matching the thermal load, saves the cost and space for implementing the analog compensation network, and allows retuning the compensation network parameters for matching a different new thermal load. These analog parameters can be programmed through the digital port: Set-point temperature range, Set-point temperature, maximum cooling current, and maximum heating current. One of these parameters can be chosen and set by the analog input port, AI pin. These output parameters can be monitored by through the digital port: actual target object temperature, TEC current, TEC voltage, and TEC
loop status. One of them can be chosen to be monitored directly through the analog output port, AO pin.