lmt70a.pdf - Sample & Buy Product Folder Support &...

This preview shows page 1 - 3 out of 29 pages.

LMT70MSP430TAOGPIO2P2.3ADC(12-bit)MUXGPIO12.2V to 3.6VCoin CellBatteryT_ONVDDP2.5_VREF1.5VVref-0.60-0.50-0.40-0.30-0.20-0.100.000.100.200.300.400.500.60±60±40±20020406080100120140160Accuracy (C)DUT Temperature (C)C001Max LimitMin LimitProductFolderSample &BuyTechnicalDocumentsTools &SoftwareSupport &CommunityLMT70,LMT70ASNIS187A –MARCH 2015–REVISED JULY 2015LMT70, LMT70A ±0.05°C Precision Analog Temperature Sensor, RTD and Precision NTCThermistor IC1Features3DescriptionThe LMT70 is an ultra-small, high-precision, low-1Accuracy:power CMOS analog temperature sensor with an±0.05°C (typ) or ±0.13°C (max) from 20°C tooutput enable pin. Applications for the LMT70 include42°Cvirtually any type of temperature sensing where cost-±0.2°C (max) from -20°C to 90°Ceffective, high precision and low-power are required,suchasInternetofThings(IoT)sensornodes,±0.23°C (max) from 90°C to 110°Cmedical thermometers, high-precision instrumentation±0.36°C (max) from -55°C to 150°Cand battery powered devices. The LMT70 is also aWide Temperature Range:55°C to 150°Cgreat replacement for RTD and precision NTC/PTCthermistors.Matching of Two Adjacent LMT70A on Tape andReel: 0.1°C (max) at 30°CIts output enable pin allows multiple LMT70s to shareone ADC channel, thus simplifying ADC calibrationVery Linear Analog Temperature Sensor withand reducing the overall system cost for precisionOutput Enable Pintemperature sensing. The LMT70 also has a linearNTC Output Slope: -5.19 mV/°CandlowimpedanceoutputallowingseamlessOutput On/Off Switch with RDS on< 80interface to an off-the-shelf MCU/ADC. DissipatingWide Power Supply Range: 2.0 V to 5.5 Vless than 36μW, the LMT70 has ultra-low self-heatingsupporting its high-precision over a wide temperatureLow Power Supply Current: 9.2 μA (typ)12 μArange.(max)TheLMT70AprovidesunparalleledtemperatureUltra Small 0.88 mm by 0.88 mm 4-bump WLCSPmatchingperformanceof0.1°C(max)fortwo(DSBGA) Packageadjacent LMT70A's picked from the same tape andreel. Therefore, the LMT70A is an ideal solution for2Applicationsenergy metering applications requiring heat transferInternet of Things (IoT) Sensor Nodescalculations.Industrial RTD (Class AA) or Precision NTC/PTCDevice Information(1)Thermistor ReplacementPART NUMBERPACKAGEBODY SIZE (NOM)Medical/Fitness EquipmentDSBGA - WLCSP (4)LMT700.88 mm x 0.88 mmMedical ThermometerYFQHuman Body temperature monitor(1)For all available packages, see the orderable addendum atMetering Temperature Compensationthe end of the data sheet.4Wide-Range Precision Active RTD or NTC Replacement (55°C to 150°C)LMT70 Accuracy vs Temperature1An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,intellectual property matters and other important disclaimers. PRODUCTION DATA.
LMT70,LMT70ASNIS187A –MARCH 2015–REVISED JULY 2015Table of Contents9.2Functional Block Diagram.......................................111Features..................................................................19.3Feature Description.................................................112Applications...........................................................19.4Device Functional Modes........................................153Description.............................................................110Application and Implementation........................164

Upload your study docs or become a

Course Hero member to access this document

Upload your study docs or become a

Course Hero member to access this document

End of preview. Want to read all 29 pages?

Upload your study docs or become a

Course Hero member to access this document

Term
Spring
Professor
NoProfessor
Tags
Tao, Texas Instruments Incorporated

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture