MAX6667ATT+T Maxim Integrated Products, MAX6667ATT+T Datasheet

no-image

MAX6667ATT+T

Manufacturer Part Number
MAX6667ATT+T
Description
Board Mount Temperature Sensors High-Accuracy PWM Temperature Sensor
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX6667ATT+T

Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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 temper-
ature information contained in the duty cycle of the out-
put 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:
Where t
modulated by the temperature (Figure 1). The MAX6666/
MAX6667 operate from -40°C to +125°C and are available
in space-saving SOT23 packages.
19-2138; Rev 3; 8/09
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Process Control
Industrial
HVAC and Environmental Control
Automotive
µP and µC Temperature Monitoring
1
Temperature (°C) = 235 - (400 x t
MAX6666
MAX6667
is fixed with a typical value of 10ms and t
+3.3V
GND
V
CC
Typical Operating Circuit
High-Accuracy PWM Output Temperature
DOUT
________________________________________________________________ Maxim Integrated Products
General Description
t
1
t
2
Applications
1
INPUT TO
TIMER/COUNTER
) / t
2
µC
2
is
o Simple Single-Wire PWM Output
o ±1.0°C Accuracy at +25°C
o High Accuracy
o Operate Up to +125°C
o Low 200µA Typical Current Consumption
o Small SOT23 package
+ Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
MAX6666AUT+T
MAX6667AUT+T
±1°C at T
±2.5°C at T
PART
A
TOP VIEW
D
GND
A
OUT
V
= +30°C
CC
= +10°C to +50°C
-40°C to +125°C
-40°C to +125°C
TEMP RANGE
1
2
3
Ordering Information
+
MAX6666
MAX6667
SOT23
Pin Configuration
PIN-
PACKAGE
6 SOT23
6 SOT23
6 I.C.
5
4
Sensors
I.C.
I.C.
Features
AATG
MARK
AATF
TOP
1

Related parts for MAX6667ATT+T

MAX6667ATT+T Summary of contents

Page 1

... MAX6666 MAX6667 DOUT GND ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. o Simple Single-Wire PWM Output o ±1.0°C Accuracy at +25°C o High Accuracy ±1° ±2.5° Operate Up to +125°C o Low 200µ ...

Page 2

High-Accuracy PWM Output Temperature Sensors ABSOLUTE MAXIMUM RATINGS (Voltages Referenced to GND) V ........................................................................-0.3V to +6. OUT MAX6666................................................-0. MAX6667 ..........................................................-0. 6.0V D Current ......................................................-1mA to +50mA OUT Continuous Current into Any Other Terminal....................±20mA Stresses ...

Page 3

High-Accuracy PWM Output Temperature (V = +3.3V +25°C, unless otherwise noted OUTPUT FREQUENCY vs. TEMPERATURE -40 - 110 TEMPERATURE (°C) OUTPUT ACCURACY vs. TEMPERATURE 3 2 ...

Page 4

High-Accuracy PWM Output Temperature Sensors (V = +3.3V +25°C, unless otherwise noted MAX6666 OUTPUT FALL TIME C = 100pF LOAD R = 100kΩ L 1V/div 40ns/div OUTPUT LOW VOLTAGE vs. TEMPERATURE 1.0 0.9 0 ...

Page 5

High-Accuracy PWM Output Temperature Detailed Description The MAX6666/MAX6667 are high-accuracy, low-cost, low current (200µA typ) temperature sensors ideal for interfacing with µCs or µPs. The MAX6666/MAX6667 convert the ambient temperature into a ratiometric PWM output at a nominal frequency of ...

Page 6

High-Accuracy PWM Output Temperature Sensors DOUT N (a) Figure 2. MAX6666/MAX6667 Output Configuration MAX6666 TEMPERATURE ERROR vs. LOAD CURRENT 3.5 3.0 2.5 2.0 1.5 1.0 0 LOAD CURRENT (mA) Figure 3. MAX6666 ...

Page 7

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 7 © 2009 Maxim Integrated Products DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc ...

Related keywords