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DS1722X/T&R

Description
IC thermometer dig 3-wire 8fchip
CategoryThe sensor   
File Size327KB,14 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Download Datasheet Parametric Compare View All

DS1722X/T&R Overview

IC thermometer dig 3-wire 8fchip

DS1722X/T&R Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerMaxim
package instructionFLIP CHIP
Reach Compliance Codenot_compliant
Maximum accuracy (Celsius)2 Cel
Other featuresALSO REQUIRES 1.8V-5.5V DIGITAL SUPPLY
body width3 mm
body height1.1 mm
Body length or diameter3 mm
JESD-609 codee0
Installation featuresSURFACE MOUNT
Number of digits12
Maximum working current0.5 mA
Maximum operating temperature120 °C
Minimum operating temperature-55 °C
Output interface type3-WIRE INTERFACE
Package body materialPLASTIC/EPOXY
Encapsulate equivalent codeFLIP CHIP
Package Shape/FormSQUARE
power supply3/5 V
Sensor/temperature sensor typeTEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL
Maximum supply voltage5.5 V
Minimum supply voltage2.65 V
surface mountYES
Terminal surfaceTin/Lead (Sn/Pb)
Termination typeSOLDER
DS1722
Digital Thermometer with
SPI/3-Wire Interface
www.maxim-ic.com
FEATURES
Temperature Measurements Require No
External Components
Measures Temperatures from -55°C to
+120°C. Fahrenheit Equivalent is -67°F to
+248°F
Thermometer Accuracy is
±2.0°C
Thermometer Resolution is Configurable
from 8 to 12 bits (1.0°C to 0.0625°C
Resolution)
Data is Read From/Written to Via a Motorola
Serial Peripheral Interface (SPI) or Standard
3-Wire Serial Interface
Wide Analog Power Supply Range (2.65V -
5.5V)
Separate Digital Supply Allows for 1.8V
Logic
Available in an 8-Pin SO (150mil) and 8-Pin
μMAX
package
V
DDD
CE
SCLK
GND
PIN ASSIGNMENT
1
2
3
4
8
7
6
5
V
DDA
SERMODE
SDI
SDO
V
DDD
CE
SCLK
GND
1*
2
3
4
8
7
6
5
V
DDA
SERMODE
SDI
SDO
DS1722S
8-Pin SO (150mil)
DS1722U
8-PIN µMAX
PIN DESCRIPTION
SERMODE
CE
SCLK
GND
V
DDA
SDO
SDI
V
DDD
- Serial Interface Mode
- Chip Enable
- Serial Clock
- Ground
- Analog Supply Voltage
- Serial Data Out
- Serial Data In
- Digital Supply Voltage
DESCRIPTION
The DS1722 Digital Thermometer and Thermostat with SPI/3-Wire Interface provides temperature
readings which indicate the temperature of the device. No additional components are required; the device
is truly a temperature-to-digital converter. Temperature readings are communicated from the DS1722
over a Motorola SPI interface or a standard 3-wire serial interface. The choice of interface standard is
selectable by the user.
For applications that require greater temperature resolution, the user can adjust the readout resolution
from 8 to 12 bits. This is particularly useful in applications where thermal runaway conditions must be
detected quickly.
For application flexibility, the DS1722 features a wide analog supply rail of 2.65V - 5.5V. A separate
digital supply allows a range of 1.8V to 5.5V.
The DS1722 is available in an 8-pin SO (150mil) and 8-pin
μMAX
package.
Applications for the DS1722 include personal computers/servers/workstations, cellular telephones, office
equipment, or any thermally-sensitive system.
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DS1722X/T&R Related Products

DS1722X/T&R DS1722S/T&R DS1722U/T&R DS1722S-TR DS1722U-TR DS1722S/T&R; DS1722U/T&R; DS1722X/T&R; DS1722U+T&R; DS1722S+T&R;
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