An isolated gate driver device, comprising: a low-voltage section, having a control input (IN PWM), which is designed to receive from a control stage a PWM control signal (S PWM) at a switching frequency (f PWM_HV); a high-voltage section, galvanically isolated from the low-voltage section, having a driving output (OUT DRV), which is designed to provide a gate-driving signal (V G), as a function of said PWM control signal (S PWM), to a power stage including at least one switch, and a feedback input (IN FB), which is designed to receive at least one feedback signal (S FB) indicative of the operation of the power stage; and a communication channel configured to implement an isolated communication between the low-voltage section and the high-voltage section, wherein the high-voltage section comprises an ADC module configured to convert the feedback signal (S FB) into a digital data stream, and said communication channel is configured to send said digital data stream (S k) to the low-voltage section to be fed back to the control stage, wherein the high-voltage section further comprising a conversion-control module, coupled to the ADC module and configured to provide a conversion-trigger signal (S Trig) designed to determine the start of conversion for acquisition of a new sample (S k) of the feedback signal (S FB); and wherein said conversion-control module comprises: an acquisition block, configured to acquire a signal (V GS) indicative of an operating status, either ON or OFF, at said driving output (OUT DRV) and to provide a status signal (V GS_STATUS) indicative of said operating status; a timer block, configured to receive the status signal (V GS_STATUS) from the acquisition block and measure the duration of an ON interval (T ON) and an OFF interval (T OFF) associated with said operating status; and a control-logic block, configured to generate said conversion-trigger signal (S Trig) at a time instant which is a function of the duration of said ON and OFF intervals (T ON, T OFF) and as a function of said status signal (V GS_STATUS). a low-voltage section, having a control input (IN PWM), which is designed to receive from a control stage a PWM control signal (S PWM) at a switching frequency (f PWM_HV); a high-voltage section, galvanically isolated from the low-voltage section, having a driving output (OUT DRV), which is designed to provide a gate-driving signal (V G), as a function of said PWM control signal (S PWM), to a power stage including at least one switch, and a feedback input (IN FB), which is designed to receive at least one feedback signal (S FB) indicative of the operation of the power stage; and a communication channel configured to implement an isolated communication between the low-voltage section and the high-voltage section, wherein the high-voltage section comprises an ADC module configured to convert the feedback signal (S FB) into a digital data stream, and said communication channel is configured to send said digital data stream (S k) to the low-voltage section to be fed back to the control stage, wherein the high-voltage section further comprising a conversion-control module, coupled to the ADC module and configured to provide a conversion-trigger signal (S Trig) designed to determine the start of conversion for acquisition of a new sample (S k) of the feedback signal (S FB); and wherein said conversion-control module comprises: an acquisition block, configured to acquire a signal (V GS) indicative of an operating status, either ON or OFF, at said driving output (OUT DRV) and to provide a status signal (V GS_STATUS) indicative of said operating status; a timer block, configured to receive the status signal (V GS_STATUS) from the acquisition block and measure the duration of an ON interval (T ON) and an OFF interval (T OFF) associated with said operating status; and a control-logic block, configured to generate said conversion-trigger signal (S Trig) at a time instant which is a function of the duration of said ON and OFF intervals (T ON, T OFF) and as a function of said status signal (V GS_STATUS). an acquisition block, configured to acquire a signal (V GS) indicative of an operating status, either ON or OFF, at said driving output (OUT DRV) and to provide a status signal (V GS_STATUS) indicative of said operating status; a timer block, configured to receive the status signal (V GS_STATUS) from the acquisition block and measure the duration of an ON interval (T ON) and an OFF interval (T OFF) associated with said operating status; and a control-logic block, configured to generate said conversion-trigger signal (S Trig) at a time instant which is a function of the duration of said ON and OFF intervals (T ON, T OFF) and as a function of said status signal (V GS_STATUS).