MAX35101EHJ+ by Analog Devices

Time-to-Digital Converter with Analog Front-End

Status: Active
Series: MAX35101
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock
The MAX35101 is a time-to-digital converter with built-in amplifier and comparator targeted as a complete analog front-end (AFE) solution for the ultrasonic heat meter and flow meter markets. With a time measurement accuracy of 20ps and automatic differential time-of-flight (TOF) measurement, this device makes for simplified computation of liquid flow. 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 the application. Internal analog switches, an autozero amplifier/comparator, real-time clock (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. 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. For temperature measurement, the MAX35101 supports up to four (4) 2-wire PT1000/500 platinum resistive temperature detectors (RTD). A simple 4-wire SPI interface allows any microcontroller to effectively configure the device for its intended measurement. On-board 8KB user flash allows the MAX35101 to be nonvolatile-configurable and provide nonvolatile energy use data to be logged. Configuration can be recalled anytime with a SPI command.

Where to Buy

Prices starting from US$2.70

Distributor Stock
Logo for Analog Devices
Analog Devices
from US$5.17
13,851
in stock
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Farnell
from US$7.17
349
in stock
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CoreStaff
from US$2.70
9
in stock
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Features

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
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 (4) 2-Wire Sensors PT1000 and PT500 RTD Support
Up to Four (4) 2-Wire Sensors
PT1000 and PT500 RTD Support
Maximizes Battery Life with Low Device and Overall System Power Low 10µA ToF measurement and < 125nA Duty-Cycled Temperature Measurement Event Timing Mode Reduces Host µC
Low 10µA ToF measurement and < 125nA Duty-Cycled Temperature Measurement
Event Timing Mode Reduces Host µC
Overhead to Minimize System Power Consumption 2.3V to 3.6V Single-Supply Operation
2.3V to 3.6V Single-Supply Operation
High-Integration Solution Minimizes Parts Countand 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
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

Specifications

Sensing Element Ultrasonic Piezoelectric Transducer
PGA Gain Fixed
Calibration Method External microcontroller
Output Type Digital
ICC (mA) (typ) 0.01
Interface SPI
VSUPPLY (V) 2.3 to 3.6
Package/Pins TQFP/32
BudgetaryPrice (See Notes) 4.83

Last 6 months Inventory & Pricing History

MAX35101EHJ+ - Integrated Circuits by Analog Devices

TIME TO DIGITAL CONVERTER TSSOP-16

Semiconductors - ICs
> Special Function
Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

IC Function Time to Digital Converter
Supply Voltage Min 2.3V
Supply Voltage Max 3.6V
IC Package Type TQFP
No. of Pins 32Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Last 6 months Inventory & Pricing History

Alternative Descriptions

TIME-TO-DIGITAL CONVERTER WITH | Analog Devices
TIME TO DIGITAL CONVERTER, TSSOP-16 | Farnell

Frequently Asked Questions

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Is the MAX35101EHJ+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Analog Devices, Farnell and CoreStaff have stock available or on a lead time for MAX35101EHJ+ .

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