DS60 microcentigrade temperature sensor DS60 preliminary 071698 1/4 features ? factory calibrated for sensitivity of +6.25mv/ c and accuracy of 2.0 c ? measurement range of 40 c to +125 c ? ultralow supply current ? compact sot23 package ? wide power supply range (2.7v v dd 5.5v) ? functionallycompatible with lm60 ? applications include monitoring battery packs, disk drives, printers, office equipment or any space and power sensitive and temperature sensitive environ- ments. pin assignment DS60rtrl 3,000 piece sot23 reel gnd v dd v o pin description v dd power supply voltage (2.7v to 5.5v) v o sensor output gnd ground description the DS60 is a factorycalibrated voltage output centi- grade temperature sensor. the thermometer output has a typical sensitivity of +6.25mv/ c and a dc offset of +424 mv. the measurement range is 40 c to +125 c, corresponding to a typical output range of +174 mv to +1205 mv. because the output voltage is positive for the entire temperature range, there is no need for a negative power supply. the accuracy of the analog out- put, taking into account amplifier nonlinearity, gain vari- ations, and temperature sensor variations is 2.0 c from 0 c to 85 c and within 3.0 c over the full voltage and temperature range. the power supply range of the DS60 is 2.7v to 5.5v. its low current requirement of 125 m a and wide supply range make it ideal in batterypowered applications. to further reduce power dissipation, the DS60 can be switched to a zero power standby state by logic gate outputs capable of sourcing current of this magnitude. the small size of the sot23 package, wide power supply range, and ultralow power dissipation allow the DS60 to be used in thermal management applications that are currently limited to nonlinear thermistors. these include battery packs, lcd displays, disk drives, power supplies, and appliances.
DS60 071698 2/4 absolute maximum ratings* voltage on v dd gnd 0.3v to +6.5v output current 5.0 ma operating temperature 40 c to +125 c storage temperature 55 c to +150 c esd susceptibility (human body model) 2kv soldering temperature (note 2) 215 c for 60 seconds (vapor phase) 220 c for 15 seconds (ir) * this is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation sections of this specification is not implied. exposure to absolute maximum rating conditions for extended periods of time may affect reliability. the dallas semiconductor DS60 is built to the highest quality standards and manufactured for long term reliability. all dallas semiconductor devices are made using the same quality materials and manufacturing methods. however, the DS60 is not exposed to environmental stresses, such as burnin, that some industrial applications require. for specific reliability information on this product, please contact the factory in dallas at (972) 3714448. recommended dc operating conditions (40 c to +125 c; 2.7v v dd 5.5v) parameter symbol condition min typ max units notes supply voltage v dd 2.7 5.5 v 1 dc electrical characteristics: power supply (note 3) (40 c to +125 c; 2.7v v dd 5.5v) parameter symbol condition min typ max units notes supply current i dd 80 125 m a dc electrical characteristics: temperature sensor and voltage output (note 3) (40 c to +125 c; 2.7v v dd 5.5v) parameter symbol condition min typ max units notes thermometer error t err 40 c t a 125 c 3 c 4 th ermome t er e rror t err 0 c t a 85 c 2 c 4 v o dc offset t = 0 c 424 mv 1 sensor gain d v/ d t 60 6.25 6.5 mv/ c nonlinearity 0.8 c 5 power supply regulation 2.7v v dd 3.3v 2.0 mv 3.0v v dd 5.5v 0.25 mv/v sensor drift 0.25 c 6 output impedance 800 w
DS60 071698 3/4 notes: 1. all voltages are referenced to ground, unless otherwise specified. 2. solder according to ipc standards. 3. specified for v o sourcing 1.0 m a (max). 4. thermometer error (expressed in c) is the difference between [v o (t) 424]/6.25 and the DS60 case tempera- ture at v dd = 3.0v, thus taking into account sensor error, dc offset error, sensor amplifier gain variations, and amplifier nonlinearity. 5. nonlinearity is the maximum deviation of an ideal linear slope for a given DS60. 6. this is the typical drift following 3 consecutive passes through a vapor phase. typical DS60 thermometer error figure 1 t b d
DS60 071698 4/4 DS60 physical dimensions
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