MAX35104ETL+

Sensor And Detector Interfaces Overview

The MAX35104ETL+ is a gas flow meter system-on-chip (SoC) designed for ultrasonic gas meters and medical ventilators. It features a time measurement accuracy of 700ps with an automatic differential time-of-flight (TOF) capability, simplifying gaseous flow computation. The device operates on a single supply voltage ranging from 2.3V to 3.6V, consuming ultra-low power of 62µA during TOF measurement and 125nA during duty-cycled temperature measurement. It includes a programmable high-voltage pulse launcher up to 30V, a configurable three-stage integrated operational amplifier chain, and an ultra-low input offset comparator. The chip supports a single 2-wire PT1000 platinum resistive temperature detector or NTC thermistor for temperature sensing.

Sensor And Detector Interfaces Feature Summary

• High-accuracy flow measurement utilizing time-to-digital conversion down to 700ps for billing and leak detection applications.
• Integrated analog front-end featuring internal switches, a configurable three-stage operational amplifier, and early edge detection to ensure consistent wave patterns.
• Programmable high-voltage pulse launcher providing up to 19dB transducer launch amplitude adjustment to compensate for environmental factors.
• Built-in real-time clock and arithmetic logic unit that perform TOF difference measurements and minimize host microprocessor access.

Sensor And Detector Interfaces Applications

• Ultrasonic Gas Meters
• Medical Ventilators

Sensor And Detector Interfaces Procurement Notes

Verify the component authenticity by checking the manufacturer markings against official documentation. Confirm the package type matches the specified TQFN-EP-40 form factor. Ensure the operating conditions align with the required voltage range and temperature specifications before integration into the final design.

Sensor And Detector Interfaces Selection Notes

Select this component when designing systems requiring precise ultrasonic gas flow measurement with minimal power consumption. It is suitable for battery-operated devices due to its ultra-low standby and active current draw. Consider the integrated boost switcher and piezo driver capabilities if minimizing external bill of materials is a priority.

Sensor And Detector Interfaces Part Context

The MAX35104ETL+ belongs to the MAX35104 series of sensor interface ICs manufactured by Analog Devices / Maxim Integrated. This series focuses on specialized analog front-end solutions for gas flow metering applications, integrating complex signal processing and control functions onto a single silicon die.

Sensor And Detector Interfaces Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.

Sensor And Detector Interfaces FAQ

What is the maximum output voltage of the programmable high-voltage pulse launcher?

The programmable high-voltage pulse launcher can generate an output voltage up to 30V.

How does the device handle temperature measurement?

For temperature measurement, the device supports a single 2-wire PT1000 platinum resistive temperature detector (RTD) or an NTC thermistor.

What is the time measurement resolution of the MAX35104ETL+?

The time measurement resolution is 3.8 ps.