Sensors, Transducers

DS1721U+

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Analog Devices Inc./Maxim Integrated

TEMP SENSOR DIGITAL SERIAL (2-WIRE) 8-PIN UMAX TUBE

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Sensors, Transducers

DS1721U+

Active

Analog Devices Inc./Maxim Integrated

TEMP SENSOR DIGITAL SERIAL (2-WIRE) 8-PIN UMAX TUBE

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Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	DS1721U+

Accuracy - Highest (Lowest) [custom]	2 °C
Accuracy - Highest (Lowest) [custom]	1 °C
Features	Standby Mode, Programmable Resolution, Programmable Limit, Output Switch, One-Shot
Mounting Type	Surface Mount
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-55 C
Output Type	I2C
Package / Case	8-TSSOP, 8-MSOP
Package / Case	0.118 in, 3 mm Width
Resolution	11 b
Sensing Temperature - Local [Max]	125 °C
Sensing Temperature - Local [Min]	-55 ¯C
Sensor Type	Digital, Local
Supplier Device Package	8-uMAX/uSOP
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

Part	Operating Temperature [Min]	Operating Temperature [Max]	Sensor Type	Features	Accuracy - Highest (Lowest) [custom]	Accuracy - Highest (Lowest) [custom]	Mounting Type	Resolution	Test Condition [Max]	Test Condition [Min]	Test Condition [Min]	Test Condition [Max]	Supplier Device Package	Voltage - Supply [Max]	Voltage - Supply [Min]	Output Type	Package / Case	Package / Case	Sensing Temperature - Local [Max]	Sensing Temperature - Local [Min]	Package / Case	Package / Case
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
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
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
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
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
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
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

Distributor	Package	Quantity	$	Updated

Digikey	Tube	1	$ 6.11	<4d
		5	$ 5.49
		10	$ 5.27
		25	$ 5.00
		50	$ 4.81
		100	$ 4.64
		500	$ 4.30
		1000	$ 4.17

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

Documents

Technical documentation and resources

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