DS1721S+T&R by Analog Devices

Digital Thermometer and Thermostat


The DS1721 digital thermometer and thermostat features ±1°C accuracy over a -10°C to +85°C range. Thermometer data is read out over a 2-wire serial bus in 2's complement format with 9 to 12 bits of resolution (user-programmable). The DS1721 features three address inputs, allowing users to multidrop up to eight DS1721 devices on one bus. The DS1721 offers thermostatic functionality with over-temperature (TH) and under-temperature (TL) user-programmable trip-points stored in on-chip SRAM. The two trip-points provide programmable thermostat hysteresis: the thermostat output is asserted when the measured temperature exceeds TH and it remains active until the temperature falls below TL. The DS1721 is available in 150mil 8-pin SO (DS1721S) and 8-pin µMAX/µSOP (DS1721U) packages. For applications requiring higher precision, the DS1631 provides ±0.5°C accuracy and is functionally compatible with the DS1721.

Where to Buy

Prices starting from US$2.12

Distributor Stock
Logo for Farnell
Farnell
from US$2.78
192
in stock
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Logo for Analog Devices
Analog Devices
from US$3.03
1,417
in stock
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Logo for Newark Electronics
Newark Electronics
from US$3.15
202
in stock
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Logo for element14
element14
from US$3.15
192
in stock
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Logo for Avnet Asia
Avnet Asia
from US$2.12
-
Buy Now

Features

±1°C accuracy from -10°C to +85°C
Measures temperatures from -55°C to +125°C (-67°F to +257°F)
9- to 12-bit user-configurable resolution
Dedicated thermostatic logic output
Thermostatic settings are user-programmable
Data is transferred over 2-wire/SMBus interface
Three address inputs allow up to eight DS1721 to operate on one bus
2.7V to 5.5V supply range
150mil 8-pin SO (DS1721S) and 8-pin µMAX/µSOP (DS1721U) packages

Specifications

Sensor Type Local
# Channels One
Interface 2-Wire/I2C/SMBus
Accuracy (±°C) 1
Parasite Pwr. No
Temp. Thresh. Programmable
Temp. Resolution (bits) 9101112
Oper. Temp. (°C) -55 to +125
Package/Pins SOIC (N)/8UMAX/8
BudgetaryPrice (See Notes) 2.2


DS1721S+T&R Sensors & Transducers by Analog Devices

TEMPERATURE SENSOR 1DEG C NSOIC-8

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

IC Output Type Digital
Sensing Accuracy Range ± 1°C
Sensing Temperature Min -55°C
Sensing Temperature Max 125°C
Sensor Case Style NSOIC
No. of Pins 8Pins
Supply Voltage Min 2.7V
Supply Voltage Max 5.5V
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Digital Thermometer and Thermo | Analog Devices
Temperature Sensor, 1Deg C, Nsoic-8 | Newark Electronics
TEMPERATURE SENSOR, 1DEG C, NSOIC-8 | element14
Thermostat ?2?C Digital SMD 8-Pin SOIC N T/R | Avnet Asia

Frequently Asked Questions

Where can I find additional details, specifications and documents for a DS1721S+T&R ?

Additional datasheets, footprints and schematics for DS1721S+T&R are listed on our Part Details page. You can also find images and similar parts to DS1721S+T&R on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for DS1721S+T&R on our Product Comparison page. Access via the 'View Pricing & Stock' button to view DS1721S+T&R price breaks, MOQs, lead times, inventory and SKUs from distributors.

Who can I contact for technical support of the product?

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Is the DS1721S+T&R RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for DS1721S+T&R have stock available?

Authorised distributors including Analog Devices, Newark Electronics, element14, Farnell and Avnet Asia have stock available or on a lead time for DS1721S+T&R .

How do I check stock and lead times for all distributors?

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