Instruction Manual

MAX6662
12-Bit + Sign Temperature Sensor with
SPI-Compatible Serial Interface
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= +3V to +5.5V, T
A
= -55°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C and V
CC
= +3.3V.)
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.
All Voltages Are Referenced to GND
V
CC
...........................................................................-0.3V to +6V
ALERT, OT................................................................-0.3V to +6V
SIO, SCLK, CS............................................-0.3V to (V
CC
+ 0.3V)
SIO Current .......................................................-10mA to +50mA
Continuous Current into Any Pin (except NC)….................10mA
Continuous Power Dissipation (T
A
= +70°C)
8-Pin SO (derate 5.9mW/°C above +70°C)..................471mW
Operating Temperature Range (Note 1) ..........-55°C to +150°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Note 1: The MAX6662 is not recommended to operate above +125°C for an extended period of time.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
TEMPERATURE TO DIGITAL-CONVERTER CHARACTERISTICS
+30°C ≤ T
A
≤ +50°C, V
CC
= +3.3V -1.0 ±0.4 +1.0
0°C ≤ T
A
≤ +70°C, V
CC
= +3.3V -1.6 ±0.7 +1.6
-20°C ≤ T
A
≤ +85°C, V
CC
= +3.3V -2.5 ±1.0 +2.5
-40°C ≤ T
A
≤ +100°C, V
CC
= +3.3V -3.0 ±1.2 +3.0
-55°C ≤ T
A
≤ +125°C, V
CC
= +3.3V -4.0 ±1.5 +4.0
Accuracy
T
A
≤ +150°C, V
CC
= +3.3V ±2.5
°C
Power-Supply Rejection Ratio PSRR 0.2 0.5 °C/V
Resolution 0.0625 °C
Supply Voltage Range V
CC
3.0 5.5 V
V
CC
= +5.5V 150
Average Operating Current
V
CC
= +3.0V 125
µA
V
CC
= +5.5V 300 600
Peak Operating Current (Note 2)
V
CC
= +3.0V 300 500
µA
V
CC
= +5.5V 8 22
Shutdown Supply Current
V
CC
= +3.0V 4 15
µA
Power-On-Reset Threshold V
POR
2.0 2.5 V
Power-On-Reset Threshold
Hysteresis
90 mV
Conversion Time t
CONV
0.25 s
Temperature Update Frequency 2Hz
SERIAL INTERFACE (SIO, SCLK, CS, ALERT, OT)
Input Low Voltage V
IL
0.8 V
Input High Voltage V
IH
0.7 V
CC
V
Input/Output Leakage Current I
LEAK
V
IN
= GND or V
CC
-5 +5 µA
Input Capacitance C
in
5pF
Output Low Sink Current I
OL
ALERT, OT, V
OL
= 0.6V 3 mA
Output High Voltage V
OH
I
SIO
= 1.6mA source V
CC
- 0.4 V
Output Low Volta
g
eV
OL
I
SIO
= 1.6mA sink 0.4 V