ADN8835ACPZ-R2 manufactured by Analog Devices Inc. is a type of monolithic TEC controller with an integrated TEC controller. With the PWM driver, it is able to control the internal power MOSFETs in an H bridge configuration. Based on the built in, zero-drift chopper amplifiers, its temperature control loop can be stabilized by PID compensation and excellent long-term temperature stability can be maintained via an autonomous analog temperature control loop.