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Data Sheet

FULL DATA SHEET (PDF, 148kB) Download   E-Mail

Description

The DS1626 and DS1726 digital thermometers/thermostats provide temperature measurements and stand-alone thermostat capability over a -55°C to +125°C range. The DS1626 offers ±0.5°C accuracy from 0°C to +70°C and the DS1726 has ±1°C accuracy from -10°C to +85°C. The resolution of the measured temperature is user selectable from 9 to 12 bits. Communication with the DS1626 and DS1726 is achieved through a 3-wire serial bus. The DS1626 and DS1726 offer thermostatic functionality with three dedicated thermostat outputs (THIGH, TLOW, and TCOM), and overtemperature (TH) and undertemperature (TL) user-programmable thresholds stored in on-chip EEPROM. For stand-alone thermostat operation, TH and TL can be programmed prior to installation, and the DS1626/DS1726 can be configured to automatically begin taking temperature measurements at power-up. Table 1, in the full data sheet, summarizes the user-accessible registers. Figure 1, in the full data sheet, shows a functional diagram.

Key Features		Applications/Uses
Temperature Measurements Require No External Components Measure Temperatures from -55°C to +125°C (-67°F to +257°F) DS1626: ±0.5°C Accuracy from 0°C to +70°C DS1726: ±1°C Accuracy from -10°C to +85°C Output Resolution is User Selectable to 9, 10, 11, or 12 Bits Wide Power-Supply Range (2.7V to 5.5V) Convert Temperature to Digital Word in 750ms (max) Stand-Alone Thermostat Capability Thermostatic Settings are User Definable and Nonvolatile (NV) Data is Read/Written Through a 3-Wire Serial Interface Available in 8-Pin µSOP Package		Any Space-Constrained Thermally Sensitive Application Consumer Products Industrial Controls Thermostatic Controls

Application Notes

Application Note 3489: Installing the DS9123O USB Adapter on Windows® 98 - DS1626, DS1726 Application Note 3930: Package Thermal Resistance Values (Theta JA, Theta JC) for Dallas Semiconductor Temperature Sensors - DS1626, DS1726

Evaluation Kits

none

Design Guides

TEMP SENSORS (PDF)

Reliability Reports

Reliability Report: DS1626.pdf DS1726.pdf

Software/Models

none

Ordering Information
Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
Devices: 1-11 of 11
DS1626	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1626S+			SOIC;8 pin; Dwg: 21-0262 (PDF) Use pkgcode/variation: W8+3*	-55°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1626S			SOIC;8 pin; Dwg: 21-0262 (PDF) Use pkgcode/variation: W8-3*	-55°C to +125°C	RoHS/Lead-Free: No Materials Analysis
DS1626S+T&R			SOIC;8 pin; Dwg: 21-0262 (PDF) Use pkgcode/variation: W8+3*	-55°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1626U			uMAX;8 pin; Dwg: 21-0036 (PDF) Use pkgcode/variation: U8-1*	-55°C to +125°C	RoHS/Lead-Free: No Materials Analysis
DS1626U+T&R			uMAX;8 pin; Dwg: 21-0036 (PDF) Use pkgcode/variation: U8+1*	-55°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1626U/T&R			uMAX;8 pin; Dwg: 21-0036 (PDF) Use pkgcode/variation: U8-1*	-55°C to +125°C	RoHS/Lead-Free: No Materials Analysis
DS1626U+			uMAX;8 pin; Dwg: 21-0036 (PDF) Use pkgcode/variation: U8+1*	-55°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1726	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1726U			uMAX;8 pin; Dwg: 21-0036 (PDF) Use pkgcode/variation: U8-1*	-55°C to +125°C	RoHS/Lead-Free: No Materials Analysis
DS1726U+			uMAX;8 pin; Dwg: 21-0036 (PDF) Use pkgcode/variation: U8+1*	-55°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1726U/T&R			uMAX;8 pin; Dwg: 21-0036 (PDF) Use pkgcode/variation: U8-1*	-55°C to +125°C	RoHS/Lead-Free: No Materials Analysis
DS1726U+T&R			uMAX;8 pin; Dwg: 21-0036 (PDF) Use pkgcode/variation: U8+1*	-55°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis

More Information

New Product Press Release 2003-01-29

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