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MAX35103EHJ+ The MAX35103EHJ+ from Analog Devices is a time-to-digital converter designed for ultrasonic flow and heat meters. It offers high accuracy and low power consumption.
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MAX35103EHJ+

Available from 1 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The MAX35103EHJ+ from Analog Devices is a time-to-digital converter designed for ultrasonic flow and heat meters. It offers high accuracy and low power consumption.
✓ Total Stock: 4,520 pcs
$ Price Range: $2.65

MAX35103EHJ+ Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
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4,520 pcs
On Request
4520 pcs On Request 1 On Request On Request On Request On Request On Request
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MAX35103EHJ+ Specifications Quick View

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MAX35103EHJ+ Description

Short technical summary and product information.

The MAX35103EHJ+ is a time-to-digital converter with an integrated amplifier and comparator, serving as a cost-effective analog front-end for ultrasonic heat and flow meter applications. It provides a time measurement accuracy down to 20ps and supports automatic differential time-of-flight (ToF) measurements, simplifying liquid flow computation.

 

This device is optimized for low power consumption, featuring ultra-low 5.5µA ToF measurement and < 125nA duty-cycled temperature measurement. It operates from a 2.3V to 3.6V single supply and includes features like an 8KB nonvolatile flash memory for data logging and a built-in real-time clock. The MAX35103EHJ+ is housed in a compact 32-TQFP (5x5mm) package and operates within a temperature range of -40°C to +85°C.

 

Key benefits include high accuracy flow measurement for billing and leak detection, high accuracy temperature measurement for precise heat and flow calculations with support for PT1000 and PT500 RTD sensors, and maximized battery life due to its low device and system power requirements. Its high integration minimizes parts count and reduces Bill of Materials (BOM) cost.

MAX35103EHJ+ Quick Information

Product Type: Time to Digital Converter
Canonical Name: MAX35103 Time-to-Digital Converter with AFE, RTC, and Flash
Subcategory: Sensor and Detector Interfaces

MAX35103EHJ+ Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

MAX35103EHJ+ Estimated Pricing

Qty Low High
1+ $2.65 $2.65

Estimated market price range - modelled values for guidance only, not live distributor offers.

MAX35103EHJ+ Features

  • High accuracy time-to-digital conversion down to 20ps.
  • Wide measurement range up to 8ms.
  • Ultra-low power consumption for battery life.
  • Supports PT1000 and PT500 RTD sensors.
  • Compact 32-TQFP package for space saving.

MAX35103EHJ+ Applications

  • Ideal for ultrasonic heat meters.
  • Suitable for ultrasonic water meters.
  • Used in ultrasonic gas meters.
  • Enables accurate flow measurement.
  • Supports precise temperature calculations.

MAX35103EHJ+ FAQs

6 frequently asked questions generated from this part’s specifications.
What is the time-to-digital accuracy of the MAX35103EHJ+?

The time-to-digital accuracy is down to 20ps.

What is the measurement range of the MAX35103EHJ+?

The measurement range is up to 8ms.

What is the typical power consumption for ToF measurement?

The ToF measurement current is ultra-low 5.5µA.

What is the operating temperature range for this device?

The operating temperature range is -40°C to +85°C.

What type of RTD sensors does the MAX35103EHJ+ support?

It supports PT1000 and PT500 RTD sensors.

What is the package type for the MAX35103EHJ+?

The package is a 32-TQFP Exposed Pad.

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