MAX6610/MAX6611 19-2457 Rev 2 11/03 Precision, Low-Power, 6-Pin SOT23 Temperature Sensors and Voltage References General Description Features The MAX6610/MAX6611 are precise, low-power analog 1C Accuracy temperature sensors combined with a precision voltage Low TC Reference (10ppm, typ) reference. They are ideal for applications involving ana- log-to-digital converters (ADCs), where the MAX6610/ Temperature Output Scaled for ADCs MAX6611 provide the reference voltage for the ADC Integrated Reference Voltage Scaled for and develop a temperature output voltage that is scaled to provide convenient ADC output codes. An 8- Convenient ADC Bit Weights bit ADCs LSB is equal to 1C, while a 10-bit ADCs LSB No Calibration Required corresponds to 0.25C. Low Supply Current The MAX6610/MAX6611 are available in two versions. The MAX6611 operates from a 4.5V to 5.5V power sup- Tiny 6-Pin SOT23 Package ply and has a 4.096V reference output. The MAX6610 Low-Current Shutdown Mode operates from 3.0V to 5.5V and has a 2.560V reference output. Power-supply current is less than 150A (typ). Both the MAX6610/MAX6611 are available in a 6-pin SOT23 package and operate from -40C to +125C. Ordering Information Applications TEMP PIN- V TOP System Temperature Monitoring REF PART RANGE PACKAGE (V) MARK Temperature Compensation MAX6610AUT-T -40C to +125C 6 SOT23-6 2.560 ABDO HVAC MAX6611AUT-T -40C to +125C 6 SOT23-6 4.096 ABOP Home Appliances Pin Configuration Typical Application Circuit V CC TOP VIEW V CC V16 GND CC C MAX6610 SHDN MAX6611 MAX6610 GND 2 5 REF MAX6611 V REF IN CC REF 0.1 F ADC IN TEMP SHDN34 TEMP 1nF GND GND 1nF SOT23 GND Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.Precision, Low-Power, 6-Pin SOT23 Temperature Sensors and Voltage References ABSOLUTE MAXIMUM RATINGS Voltages Referenced to GND Operating Temperature Range (T , T )....-40C to +125C MIN MAX V ........................................................................-0.3V to +6.0V ESD Protection (all pins, Human Body Model) ..................2000V CC All Other Pins............................................. -0.3V to (V + 0.3V) Storage Temperature Range ............................-65C to +150C CC Input Current...................................................................... 20mA Junction Temperature......................................................+150C Output Current ....................................................................20mA Lead Temperature (soldering, 10s) ................................+300C Continuous Power Dissipation (T = +70C) A 6-Pin SOT23 (derate 8.7mW/C above +70C) ........695.7mW Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (V = 3.0 to 5.5V (MAX6610), V = 4.5V to 5.5V (MAX6611), T = T to T , unless otherwise noted. Typical values are at V CC CC A MIN MAX CC = 5.0V (MAX6611) and V = 3.3V (MAX6610), T = +25C.) (Note 1) CC A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Outputs unloaded 150 250 Supply Current I A CC SHDN = 0 0.2 1 T = +25C -1.2 +1.2 A T = -10C to +55C (Note 2) -2.4 +2.4 A Temperature Sensor Error C T = -20C to +85C (Note 2) -3.7 +3.7 A T = -40C to +125C (Note 2) -5.0 +5.0 A MAX6611, T = 0C 1.200 Temperature Sensor Output A V V TEMP Voltage MAX6610, T = 0C 0.750 A Temperature Sensor Nonlinearity T = -10C to +80C1 C A MAX6611 16 Temperature Sensor Output Slope mV/C MAX6610 10 Temperature Sensor Supply 3.0V V 5.5V for MAX6610 and 4.5V CC 0.5 C/V Sensitivity V 5.5V for MAX6611 CC Sourcing: 0 I 500A -1 -2.5 +1 Temperature Sensor Load OUT C/mA Regulation Sinking: -100A I 0 -2.5 +5 OUT Temperature Sensor Capacitive No sustained oscillations (Note 3) 0 0.2 F Load Temperature Sensor Long-Term T = +50C for 1000hr 0.1 C A Stability MAX6611, T = +25C 4.076 4.096 4.116 A Reference Output Voltage V V REF MAX6610, T = +25C 2.547 2.560 2.573 A Voltage Reference Temperature T = -40C to +85C -50 10 +50 ppm/C A Coefficient Voltage Reference Line -1 +1 mV/V Regulation Sourcing: 0 I 1mA 1 2 OUT Voltage Reference Load V / OUT Regulation I OUT Sinking: -200A I 0 4 20 OUT Voltage Reference Long-Term V / OUT 1000h at T = +25C 50 ppm A Stability time 2 MAX6610/MAX6611