Sensor transmitter provides over 20% space saving and halves power consumption
The MAX12900 works by converting the microcontroller’s PWM signals into a current over a 4-20mA loop with two, three, or four-wire configurations. The device is highly accurate with up to 3.5x lower drift than other solutions at 10 ppm/oC and operates over a -40°C to +125°C temperature range. It comes in a 5mm x 5mm, 32-pin TQFN package, which integrates 10 building blocks for the 4-20mA sensor transmitter. These include a high-voltage LDO and power sequencing. The MAX12900 draws 250uA at maximum current.
More information
https://www.maximintegrated.com/MAX12900
Related news
4-20mA DAC has internal DC/DC to operate from a single rail
Ultra-low-power, high-accuracy 4–20mA 2-wire current-loop sensor reference design
Reference design shield to accelerate building automation projects
Accurate industrial temperature measurements with loop-powered transmitter
If you enjoyed this article, you will like the following ones: don't miss them by subscribing to :