Time-to-digital converter ultrasonic flow metering applications

Suitable for gas, water and heat ultrasonic metering applications, Maxim's MAX35102 time-to-digital converter is now stocked by Mouser. The device includes a built-in amplifier and comparator and is aimed at low-cost, analog front-end (AFE) solution for the ultrasonic flowmeter markets. The device is similar to the MAX35101, but with a reduced feature set, and it does not include a real-time clock (RTC). With a time measurement accuracy of 20ps and automatic differential time-of-flight (ToF) measurement, this device makes for simplified computation of liquid flow. Power consumption is the lowest available with ultra-low 5.5µA ToF measurement and <125nA duty-cycled temperature measurement, says the company.