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DS1726 Datasheet(PDF) 1 Page - Dallas Semiconductor |
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DS1726 Datasheet(HTML) 1 Page - Dallas Semiconductor |
1 / 13 page 1 of 13 06/10/03 FEATURES § 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 mMAX/mSOP Package PIN CONFIGURATION 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 over-temperature (TH) and under-temperature (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. Pin descriptions for the DS1626 and DS1726 are provided in Table 2 and user-accessible registers are summarized in Table 3. A functional diagram is shown in Figure 1. DS1626/DS1726 High-Precision 3-Wire Digital Thermometer and Thermostat www.maxim-ic.com mSOP (DS1626U, DS1726U) CLK/ CNV VDD THIGH TLOW TCOM GND RST DQ 6 8 7 5 3 1 2 4 See Table 1 for Ordering Information See Table 2 for Pin Descriptions APPLICATIONS § Thermostatic Controls § Industrial Controls § Consumer Products § Any Space-Constrained Thermally Sensitive Application |
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