The MAX35101EHJ+ is a time to digital converter with an analog front-end in a 32 pin TQFP package. With a time measurement accuracy of 20ps and automatic differential time of flight measurement. Early edge detection ensures measurements are made with consistent wave patterns to greatly improve accuracy and eliminate erroneous measurements. Multihit capability with stop-enable windowing allows the device to be fine-tuned for application. Internal analog switches, an autozero amplifier/comparator, RTC, and programmable receiver sensitivity provide the analog interface and control for a minimal electrical bill of material solution. The RTC provides an event timing mode that is configurable and runs cyclic algorithms to minimize microprocessor interactivity and increase battery life. The built-in arithmetic logic unit provides TOF difference measurements. A programmable receiver hit accumulator can be utilized to minimize the host microprocessor access and thus minimize current consumption.

• The supply voltage range is 2.3V to 3.6V
• Operating temperature range from -40°C to 85°C
• Supports up to four 2-wire PT1000/500 platinum resistive temperature detectors
• Low 10µA ToF measurement and is less than 125nA duty-cycled temperature measurement
• Event timing mode reduces host µC
• 8KB of non-volatile flash memory for data logging
• Built-in real-time clock

Applications:
Metering

Technical Doc: MAX35101EHJ+  Datasheet