Microcontrollers

There is a new product type in the industry, the digital low dropout linear regulator. It offers telemetry and adjustability of a linear power supply in a very small footprint...

Integrating ADCs that provide accurate results without requiring a precision integrator capacitor has been around for a long time. A venerable example is that multimeter favorite, the dual-slope ADC...

I recently published a Design Idea showing some very simple circuits for PWM programming of standard regulator chips, both linear and switching, “Revisited: Three discretes suffice to interface PWM to switching regulators”...

Renesas Electronics Corporation introduced the RA2L2 microcontroller group with ultra-low power consumption and the industry’s first support for the new UCB-C Revision 2.4 standard...

Semiconductor laser diodes are often packaged with a photodiode. The output current from this photodiode can be monitored to regulate the output power intensity of the laser diode...

Many voltage regulator chips, both linear and switching, use the same basic two-resistor network for output voltage programming...

Engineers always want to get all they can from their circuits; this holds for analog-to-digital converters. To maximize performance from an ADC, resolution is perhaps the primary spec to focus on...

Receiving infrared signals while conserving system power is difficult, and typically requires the inclusion of complex power-management routines in the firmware. You can avoid that problem by disconnecting power to the microcontroller when IR is not present...

When designing devices with microcontrollers, I like to use some of the analog-to-digital converter inputs to measure onboard voltages along with all the required sensors inputs. This means I often run out of ADC inputs...

Microcontrollers must often read the status of switches in control applications. A typical switch configuration uses pullup resistors on both of the switches to pull the signals high or low for the microcontroller to read...