SMT16030 Version 7/2005 SMT16030 DIGITAL TEMPERATURE SENSOR Features Absolute accuracy 0.7 C Linear output within 0.2 C Resolution better then 0.005 C Duty Cycle output Calibrated on chip TTL, CMOS compatible Temperature range 175 C (-45 to +130 C) Directly connectable to data input of microprocessor Easy multiplexing of multiple sensors Typical applications Heater systems Measuring instruments Washing machines Overheating protection Appliances Introduction The Smartec temperature sensor is a sophisticated full silicon temperature sensor with a digital output. The one wire output (duty-cycle modulated) can be directly connected to all kinds of micro-controllers without the need of A/D conversion. The temperature range is 45 C to 150 C. The high resolution (< 0.005 C) makes the sensor useful for high precision applications. The sensor is available in various housings like T018, T092, T0220 and for high volume production in SOIC. Special housing can be manufactured on request. Product highlights The SMART TEMPERATURE SENSOR features a duty-cycle modulated square wave output voltage with linear response to temperatures in the -45 C to +130 C range. The absolute accuracy is better than 1.2 C. In the range from -30 to +100 C absolute accuracy is better than 0.7 C, while the linearity is better than 0.2 C (Model TO18). - 1 SMARTEC B.V, Delpratsingel 26 WWW.SMARTEC.NL 4811 AP Breda, The Netherlands Tel: +31(0)765205353 SMT16030 Version 7/2005 The SMART TEMPERATURE SENSOR is calibrated during test and burn-in of the chip. The integrated modulator ensures the sensor unit can communicate effectively with low-cost microcontrollers without the need of (onboard) A/D converters or an Xtal controlled oscillator. The SMART TEMPERATURE SENSOR combines digital output and on-chip calibration to ensure major cost reductions and performance-related advantages. In applications where multiple sensors are used, easy multiplexing can be obtained by using a corresponding number of microprocessor inputs or by using low cost digital multiplexers. Since the sensor requires no subsequent calibration, optimal cost savings are recorded both during manufacturing and in the course of after-sales servicing. Pin-out and housing. SOIC-8 TO92 TO18 TO220 2 Pin 1 5.08 3 Pin 1 +V 1 Pin 7 GND 3.85 6.1 Pin 8 Out bottom view All Sizes in mm. 1 3 2 0. 41 1 Output Pin 5 1.27 1 2 3 2 + Vcc metal backplate = GND 3 GND HEC housing C = 100 nF Pin 1 Output (between Vcc and GND) Pin 2 + Vcc 2.5 C 2 3 1 Pin 3 GND 8.5 mm - 2 SMARTEC B.V, Delpratsingel 26 WWW.SMARTEC.NL 4811 AP Breda, The Netherlands Tel: +31(0)765205353