Zenode.ai Logo
Log InSign Up
ONSEMI MC34151DG
Sensors, Transducers

DS1721S+T&R

Active
Analog Devices Inc./Maxim Integrated

TEMPERATURE SENSOR IC, 2WIRE, DIGITAL, ± 1°C, -55 °C, 125 °C, NSOIC, 8 PINS

Deep-Dive with AI

Search across all available documentation for this part.

DocumentsTechnical Data Sheet ENProduct Change Notice EN+2
ONSEMI MC34151DG
Sensors, Transducers

DS1721S+T&R

Active
Analog Devices Inc./Maxim Integrated

TEMPERATURE SENSOR IC, 2WIRE, DIGITAL, ± 1°C, -55 °C, 125 °C, NSOIC, 8 PINS

Deep-Dive with AI

DocumentsTechnical Data Sheet ENProduct Change Notice EN+2

Technical Specifications

Parameters and characteristics for this part

SpecificationDS1721S+T&R
Accuracy - Highest (Lowest) [custom]2 °C
Accuracy - Highest (Lowest) [custom]1 °C
FeaturesStandby Mode, Programmable Resolution, Programmable Limit, Output Switch, One-Shot
Mounting TypeSurface Mount
Operating Temperature [Max]125 °C
Operating Temperature [Min]-55 C
Output TypeI2C
Package / Case0.154 in
Package / Case8-SOIC
Package / Case3.9 mm
Resolution11 b
Sensing Temperature - Local [Max]125 °C
Sensing Temperature - Local [Min]-55 ¯C
Sensor TypeDigital, Local
Supplier Device Package8-SOIC
Test Condition [Max]85 °C
Test Condition [Max]125 °C
Test Condition [Min]-10 °C
Test Condition [Min]-55 ¯C
Voltage - Supply [Max]5.5 V
Voltage - Supply [Min]2.7 V

DS1721 Series

Digital Thermometer and Thermostat

PartOperating Temperature [Min]Operating Temperature [Max]Sensor TypeFeaturesAccuracy - Highest (Lowest) [custom]Accuracy - Highest (Lowest) [custom]Mounting TypeResolutionTest Condition [Max]Test Condition [Min]Test Condition [Min]Test Condition [Max]Supplier Device PackageVoltage - Supply [Max]Voltage - Supply [Min]Output TypePackage / CasePackage / CaseSensing Temperature - Local [Max]Sensing Temperature - Local [Min]Package / CasePackage / Case
8 TSSOP
Analog Devices Inc./Maxim Integrated
DS1721U+T&R
-55 C
125 °C
Digital
Local
One-Shot
Output Switch
Programmable Limit
Programmable Resolution
Standby Mode
2 °C
1 °C
Surface Mount
11 b
85 °C
-10 °C
-55 ¯C
125 °C
8-uMAX/uSOP
5.5 V
2.7 V
I2C
8-MSOP
8-TSSOP
0.118 in
3 mm Width
125 °C
-55 ¯C
8 TSSOP
Analog Devices Inc./Maxim Integrated
DS1721U
-55 C
125 °C
Digital
Local
One-Shot
Output Switch
Programmable Limit
Programmable Resolution
Standby Mode
2 °C
1 °C
Surface Mount
11 b
85 °C
-10 °C
-55 ¯C
125 °C
8-uMAX/uSOP
5.5 V
2.7 V
I2C
8-MSOP
8-TSSOP
0.118 in
3 mm Width
125 °C
-55 ¯C
8 TSSOP
Analog Devices Inc./Maxim Integrated
DS1721U+
-55 C
125 °C
Digital
Local
One-Shot
Output Switch
Programmable Limit
Programmable Resolution
Standby Mode
2 °C
1 °C
Surface Mount
11 b
85 °C
-10 °C
-55 ¯C
125 °C
8-uMAX/uSOP
5.5 V
2.7 V
I2C
8-MSOP
8-TSSOP
0.118 in
3 mm Width
125 °C
-55 ¯C
8-SOIC
Analog Devices Inc./Maxim Integrated
DS1721S+
-55 C
125 °C
Digital
Local
One-Shot
Output Switch
Programmable Limit
Programmable Resolution
Standby Mode
2 °C
1 °C
Surface Mount
11 b
85 °C
-10 °C
-55 ¯C
125 °C
8-SOIC
5.5 V
2.7 V
I2C
8-SOIC
125 °C
-55 ¯C
0.154 in
3.9 mm
8-SOIC
Analog Devices Inc./Maxim Integrated
DS1721S
-55 C
125 °C
Digital
Local
One-Shot
Output Switch
Programmable Limit
Programmable Resolution
Standby Mode
2 °C
1 °C
Surface Mount
11 b
85 °C
-10 °C
-55 ¯C
125 °C
8-SOIC
5.5 V
2.7 V
I2C
8-SOIC
125 °C
-55 ¯C
0.154 in
3.9 mm
ONSEMI MC34151DG
Analog Devices Inc./Maxim Integrated
DS1721S+T&R
-55 C
125 °C
Digital
Local
One-Shot
Output Switch
Programmable Limit
Programmable Resolution
Standby Mode
2 °C
1 °C
Surface Mount
11 b
85 °C
-10 °C
-55 ¯C
125 °C
8-SOIC
5.5 V
2.7 V
I2C
8-SOIC
125 °C
-55 ¯C
0.154 in
3.9 mm
8-SOIC
Analog Devices Inc./Maxim Integrated
DS1721S/T&R
-55 C
125 °C
Digital
Local
One-Shot
Output Switch
Programmable Limit
Programmable Resolution
Standby Mode
2 °C
1 °C
Surface Mount
11 b
85 °C
-10 °C
-55 ¯C
125 °C
8-SOIC
5.5 V
2.7 V
I2C
8-SOIC
125 °C
-55 ¯C
0.154 in
3.9 mm

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$Updated
DigikeyCut Tape (CT) 1$ 5.77<4d
5$ 5.18
10$ 4.97
25$ 4.71
50$ 4.54
100$ 4.37
500$ 4.13
Tape & Reel (TR) 2500$ 3.78<4d
NewarkEach (Supplied on Cut Tape) 1$ 4.461m+
10$ 3.97
25$ 3.74
50$ 3.55
100$ 3.49
250$ 3.48
500$ 3.27
1000$ 3.20

Description

General part information

DS1721 Series

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 THand 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, theDS1631provides ±0.5°C accuracy and is functionally compatible with the DS1721.ApplicationsAlarm SystemsFibre ChannelInstrumentationNetworking