MAX35103
PRODUCTIONReduced Power Time-to-Digital Converter with AFE, RTC, and Flash
Accurate Low Flow Measurement with Lowest System Power Consumption
- Part Models
- 2
- 1ku List Price
- Starting From $6.21
Part Details
- High Accuracy Flow Measurement for Billing and Leak Detection
- Time-to-Digital Accuracy Down to 20ps
- Measurement Range Up to 8ms
- Two Channels: Single-Stop Channel
- High Accuracy Temperature Measurement for Precise Heat and Flow Calculations
- Up to Four 2-Wire Sensors
- PT1000 and PT500 RTD Support
- Maximizes Battery Life with Low Device and Overall System Power
- Ultra-Low 5μA ToF Measurement and < 125nA Duty-Cycled Temperature Measurement
- Event Timing Mode Reduces Host Microcontroller Overhead to Minimize System Power Consumption
- 2.3V to 3.6V Single-Supply Operation
- High-Integration Solution Minimizes Parts Count and
Reduces BOM Cost
- 8KB of Nonvolatile Flash Memory for Data Logging
- Built-in Real Time Clock
- Small, 5mm x 5mm, 32-Pin TQFP Package
- -40°C to +85°C Operation
The MAX35103 is a time-to-digital converter with 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, this device makes for simplified computation of liquid flow.
Average power consumption is the lowest available with ultra-low 5.5μA ToF measurement and < 125nA duty-cycled temperature measurement.
Applications
- Ultrasonic Gas Meters
- Ultrasonic Heat Meters
- Ultrasonic Water Meters
Documentation
Data Sheet 1
Reliability Data 1
Application Note 3
Design Note 1
Technical Articles 3
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX35103EHJ+ | 32-TQFP_EP-5X5X1.0 | ||
| MAX35103EHJ+T | 32-TQFP_EP-5X5X1.0 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 13, 2020 - 2041 TEST |
||
| MAX35103EHJ+ | PRODUCTION | |
| MAX35103EHJ+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Electrochemical Sensors 1 | ||
| MAX35102 | LAST TIME BUY | Time-to-Digital Converter Without RTC |
Tools & Simulations
Evaluation Kits
Evaluation Kit for the MAX35103/MAX32620
Evaluation Kit for the MAX35103