DS1726U+ Maxim Integrated Products, DS1726U+ Datasheet
DS1726U+
Specifications of DS1726U+
Related parts for DS1726U+
DS1726U+ Summary of contents
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... PART DS1626U DS1626U+ DS1626U/T&R DS1626U+T&R DS1726U DS1726U+ DS1726U/T&R DS1726U+T&R +Denotes a lead-free package. A “+” symbol will also be marked on the package near the Pin 1 indicator. T&R = Tape and reel. High-Precision 3-Wire Digital Thermometer and Thermostat FEATURES digital Temperature Measurements Require No External Components thermostat Measure Temperatures from -55° ...
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PIN DESCRIPTION PIN NAME 1 DQ Data Input/Output Pin (Tri-State) for 3-Wire Serial Communication Clock Input Pin for 3-Wire Serial Communication. Controls temperature 2 CLK/CNV measurements when the DS1626/DS1726 is configured as a stand-alone thermostat. RST 3 Reset Input Pin ...
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ABSOLUTE MAXIMUM RATINGS Voltage Range on Any Pin Relative to Ground...................................................................-0.5V to +6.0V Operating Temperature Range.............................................................................................-55°C to +125°C Storage Temperature Range ................................................................................................-55°C to +125°C Solder Dip Temperature (10s) .............................................................................................+260°C Reflow Oven Temperature ..................................................................................................+220°C These are stress ratings only and functional ...
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EEPROM AC ELECTRICAL CHARACTERISTICS (V = 2.7V to 5.5V PARAMETER EEPROM Write Cycle Time EEPROM Writes EEPROM Data Retention AC ELECTRICAL CHARACTERISTICS (V = 2.7V to 5.5V PARAMETER Temperature Conversion Time Data In to ...
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Figure 2. TYPICAL OPERATING CURVES DS1626 0.8 0.6 0.4 0.2 +3σ 0 -0.2 -0.4 -0.6 -3σ -0 REFERENCE TEMPERATURE (°C) Figure 3. TIMING DIAGRAMS a) Read Timing Write Timing t RC 0.8 ...
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OPERATION—MEASURING TEMPERATURE The DS1626/DS1726 measure temperature using a bandgap-based temperature sensor. A delta-sigma analog-to-digital converter (ADC) converts the measured temperature to a digital value that is calibrated in degrees Celsius; for Fahrenheit applications a lookup table or conversion routine must ...
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Table 2. 12-BIT RESOLUTION TEMPERATURE/DATA RELATIONSHIP TEMPERATURE (°C) +125 +25.0625 +10.125 +0.5 0 -0.5 -10.125 -25.0625 -55 OPERATION—THERMOSTAT FUNCTION The DS1626/DS1726 thermostat outputs (T conversion and remain at the updated values until the next conversion completes. T the measured temperature ...
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CPU BIT AND STAND-ALONE THERMOSTAT OPERATION In stand-alone thermostat mode, DS1626/DS1726 thermostat functionality can be used without requiring a microcontroller to start/stop temperature conversions. The CPU bit in the configuration register determines if stand-alone mode is enabled. When CPU = ...
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CONFIGURATION REGISTER The configuration register allows the user to customize the DS1626/DS1726 conversion and thermostat options. It also provides information to the user about conversion status, EEPROM activity, and thermostat activity. The configuration register is arranged as shown in Figure ...
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Table 4. RESOLUTION CONFIGURATION RESOLUTION R1 R0 (BITS 3-WIRE SERIAL DATA BUS The 3-wire bus consists of three signals: RST (active-low reset), CLK (clock), and DQ (data). 3-wire ...
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Figure 7. 3-WIRE COMMUNICATION a) Start Temperature Conversion RST CLK DQ b) Write to the T /T Registers H L RST CLK Write TH [01h [02h] Command c) Write to ...
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... No circuit patent licenses are implied. Maxim/Dallas Semiconductor reserves the right to change the circuitry and specifications without notice at any time The Maxim logo is a registered trademark of Maxim Integrated Products, Inc. The Dallas logo is a registered trademark of Dallas Semiconductor Corporation. 0101 0001 0010 0010 ...