M
12-Bit + Sign Digital Temperature Sensors
with Serial Interface
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
All Voltages Referenced to GND
V
CC
...........................................................................-0.3V, +6.0V
SO, SCK,
CS
....................................................-0.3V, V
CC
+ 0.3V
SO.......................................................................-1mA to +50mA
Current into Any Pin............................................................10mA
Continuous Power Dissipation (T
A
= +70
°
C)
6-Pin SOT23 (derate 9.10mW/
°
C above +70
°
C)..........727mW
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.
Junction Temperature......................................................+150
°
C
Operating Temperature Range (Note 1) ...........-55
°
C to +150
°
C
Storage Temperature Range.............................-65
°
C to +150
°
C
Lead Temperature.............................................................Note 2
ELECTRICAL CHARACTERISTICS
(V
CC
= +3.0V to +5.5V, T
A
= -55
°
C to +125
°
C, unless otherwise noted. Typical values are at V
CC
= +3.3V and T
A
= +25
°
C.) (Notes 3
and 4)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
TEMPERATURE
T
A
= room temp, V
CC
= +3.3V
0
°
C
≤
T
A
≤
+70
°
C, V
CC
= +3.3V
-20
°
C
≤
T
A
≤
+85
°
C, V
CC
= +3.3V
-20
°
C
≤
T
A
≤
+100
°
C, V
CC
= +3.3V
-40
°
C
≤
T
A
≤
+125
°
C, V
CC
= +3.3V
T
A
≥
-55
°
C, V
CC
= +3.3V
T
A
= +150
°
C, V
CC
= +3.3V
-0.8
-1.0
-1.6
-2.3
-3.2
-1.0
-5.0
±0.2
±0.2
+0.3
+0.5
+0.8
+1.5
+1.5
0.2
+0.8
+1.0
+1.6
+2.3
+3.2
+3.5
+6.5
0.6
°
C
Accuracy
Power-Supply Sensitivity
Resolution
PSS
°
C/V
°
C
0.0625
0.37
5.9
180
MAX6629, MAX6630,
CS
high
MAX6631, MAX6632,
CS
high
0.5
8
250
0.65
10.5
320
Ti m e Betw een C onver si on S ar s
t
SAMPLE
s
Conversion Time
POWER SUPPLY
Supply Voltage Range
t
CONV
ms
V
CC
I
SD
I
IDLE
I
CONV
3.0
5.5
5
20
650
400
50
V
Shutdown (Note 4), V
CC
= +0.8V
ADC idle (Figure 2),
CS
= low
ADC converting (Figure 2)
MAX6629, MAX6630
MAX6631, MAX6632
6
Supply Current, SCK Idle
360
200
32
μA
Average Operating Current
I
CC
μA
Power-On Reset (POR)
Threshold
V
CC
falling
1.6
V
Note 1:
It is not recommended to operate the device above +125
°
C for extended periods of time.
Note 2:
This device is constructed using a unique set of packaging techniques that impose a limit on the thermal profile the device
can be exposed to during board-level solder attach and rework. This limit permits only the use of the solder profiles
recommended in the industry-standard specification, JEDEC 020A, paragraph 7.6, Table 3 for IR/VPR and Convection
Reflow. Preheating is required. Hand or wave soldering is not allowed.