Digital temperature sensor and thermal watchdog

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  • The STDS75 is a high-precision CMOS (digital) temperature sensor IC with a delta-sigma analog-to-digital (ADC) converter and an I2C-compatible serial digital interface. It is targeted for general applications such as personal computers, system thermal management, electronics equipment, and industrial controllers, and is packaged in the industry-standard 8-lead TSSOP package.

    The device contains a bandgap temperature sensor and programmable 9- to 12-bit ADC which monitor and digitize the temperature to a resolution up to 0.0625 °C. The STDS75 is typically accurate to (±3 °C - max) over the full temperature measurement range of –55 °C to 125 °C with ±2 °C accuracy in the –25 °C to +100 °C range. At power-up, the STDS75 defaults to 9-bit resolution for software compatibility with the STLM75.
    The STDS75 is specified for operating at supply voltages from 2.7 V to 5.5 V. Operating at 3.3 V, the supply current is typically (125 μA).
    The onboard delta-sigma analog-to-digital converter (ADC) converts the measured temperature to a digital value that is calibrated in °C; for Fahrenheit applications a lookup table or conversion routine is required.
    The STDS75 is factory-calibrated and requires no external components to measure temperature.

    Key Features

    • Measures temperatures from –55 °C to +125 °C (–67 °F to +257 °F)
      • ±0.5 °C (typ) accuracy
      • ±2 °C (max) accuracy from –25 °C to +100 °C
    • Low operating current: 125 μA (typ)
    • No external components required
    • 2-wire I2C/SMBus-compatible serial interface
      • Selectable serial bus address allows connection of up to eight devices on the same bus
    • Thermometer resolution is user-configurable from 9 (default) to 12 bits (0.5 °C to 0.0625 °C)
    • 9-bit conversion time is 150 ms (max)
    • Programmable temperature threshold and hysteresis set points
    • Wide power supply range - operating voltage range: 2.7 V to 5.5 V
    • Pin- and software-compatible with DS75 (drop-in replacement)
    • Power-up defaults permit standalone operation as thermostat
    • Shutdown mode to minimize power consumption
    • Separate open drain output pin operates as an interrupt or comparator/thermostat output (dual purpose event pin)
    • MSOP8 (TSSOP8) package

Circuit Diagram

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Part Number
Package
Packing Type
Temperature (°C) Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
More info
Order from Distributors
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min
max
STDS75DS2F MSOP/TSSOP 8 Tape And Reel -55 125
Active
0.2885 1000 EAR99
MORE INFO

Country of Origin:

MALAYSIA

Check Availability

Distributor availability ofSTDS75DS2F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3464 1 Order Now
RS COMPONENTS EUROPE 940 5 Order Now
Newark Element14 AMERICA 250 0 Order Now
Farnell Element14 EUROPE 1100 1 Order Now

Distributor reported inventory date: 2019-05-22

Distributor Name

DIGIKEY

Stock

3464

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

940

Min.Order

5

Region

EUROPE Order Now

Newark Element14

Stock

250

Min.Order

0

Region

AMERICA Order Now

Farnell Element14

Stock

1100

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-22

Buy now

STDS75DS2F

Package

MSOP/TSSOP 8

Packing Type

Tape And Reel

Unit Price (US$)

0.2885*

Distributor availability ofSTDS75DS2F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3464 1 Order Now
RS COMPONENTS EUROPE 940 5 Order Now
Newark Element14 AMERICA 250 0 Order Now
Farnell Element14 EUROPE 1100 1 Order Now

Distributor reported inventory date: 2019-05-22

Distributor Name

DIGIKEY

Stock

3464

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

940

Min.Order

5

Region

EUROPE Order Now

Newark Element14

Stock

250

Min.Order

0

Region

AMERICA Order Now

Farnell Element14

Stock

1100

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-22

Operating Temperature (°C)

(min)

-55

(max)

125

Marketing Status

Active

Unit Price (US$)

0.2885

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

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00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS5156
      Digital temperature sensor and thermal watchdog
      9.0
      600.07 KB
      PDF
      DS5156

      Digital temperature sensor and thermal watchdog

    • Description Version Size Action
      AN2680
      Fan speed controller based on STDS75 or STLM75 digital temperature sensor and ST72651AR6 MCU
      1.4
      125.82 KB
      PDF
      AN2680

      Fan speed controller based on STDS75 or STLM75 digital temperature sensor and ST72651AR6 MCU

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    • Description Version Size Action
      STTS75 2.2
      706.56 KB
      PDF

      STTS75

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      1.91 MB
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Part Number Marketing Status Package RoHS Compliance Grade Material Declaration**
STDS75DS2F
Active
MSOP/TSSOP 8 Ecopack2

STDS75DS2F

Package:

MSOP/TSSOP 8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

MSOP/TSSOP 8

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.