DatasheetsPDF.com

MAX6667

Maxim Integrated Products
Part Number MAX6667
Manufacturer Maxim Integrated Products
Description (MAX6666 / MAX6667) High-Accuracy PWM Output Temperature Sensors
Published Feb 11, 2010
Detailed Description 19-2138; Rev 3; 8/09 High-Accuracy PWM Output Temperature Sensors General Description The MAX6666/MAX6667 are high-accu...
Datasheet PDF File MAX6667 PDF File

MAX6667
MAX6667

Overview
19-2138; Rev 3; 8/09 High-Accuracy PWM Output Temperature Sensors General Description The MAX6666/MAX6667 are high-accuracy, low-cost, low-power temperature sensors with a single-wire output.
The MAX6666/MAX6667 convert the ambient temperature into a ratiometric PWM output with temperature information contained in the duty cycle of the output square wave.
The MAX6666 has a push-pull output and the MAX6667 has an open-drain output.
The MAX6666/MAX6667 operate at supply voltages from +3V to +5.
5V.
The typical unloaded supply current at 5.
0V is 200µA.
Both devices feature a single-wire output that minimizes the number of pins necessary to interface with a microprocessor (µP).
The output is a square wave with a nominal frequency of 35Hz (±20%) at +25°C.
The output format is decoded as follows: Temperature (°C) = 235 - (400 x t1) / t2 Where t1 is fixed with a typical value of 10ms and t2 is modulated by the temperature (Figure 1).
The MAX6666/ MAX6667 operate from -40°C to +125°C and are available in space-saving SOT23 packages.
o Simple Single-Wire PWM Output o ±1.
0°C Accuracy at +25°C o High Accuracy ±1°C at TA = +30°C ±2.
5°C at TA = +10°C to +50°C o Operate Up to +125°C o Low 200µA Typical Current Consumption o Small SOT23 package Features MAX6666/MAX6667 Applications Process Control Industrial HVAC and Environmental Control Automotive µP and µC Temperature Monitoring www.
DataSheet4U.
com Ordering Information PART MAX6666AUT+T MAX6667AUT+T TEMP RANGE -40°C to +125°C -40°C to +125°C PINPACKAGE 6 SOT23 6 SOT23 TOP MARK AATF AATG +Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Typical Operating Circuit TOP VIEW t1 t2 Pin Configuration +3.
3V VCC + DOUT µC INPUT TO TIMER/COUNTER 1 MAX6666 MAX6667 6 I.
C.
MAX6666 MAX6667 DOUT GND VCC 2 5 I.
C.
GND 3 4 I.
C.
SOT23 ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)