MAX35103 Time-to-Digital Converter

Analog Devices MAX35103 Time-to-Digital Converter includes a built-in amplifier and comparator targeted as a low-cost analog front-end solution for the ultrasonic heat meter and flow meter markets. It is similar to the MAX35101, but consumes about half the average power and increases the maximum ToF measurement frequency in event timing mode from 2Hz to 16Hz. With a time measurement accuracy of 20ps and automatic differential time-of-flight (ToF) measurement, the Analog Devices MAX35103 simplifies the computation of liquid flow. Average power consumption is the lowest available with ultra-low 5.5μA ToF measurement and < 125nA duty-cycled temperature measurement.