![](http://datasheet.mmic.net.cn/Maxim-Integrated-Products/MAX1253BEUE-T_datasheet_105534/MAX1253BEUE-T_8.png)
MAX1253/MAX1254
Stand-Alone, 10-Channel, 12-Bit System Monitors
with Internal Temperature Sensor and VDD Monitor
8
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EXTERNAL TEMPERATURE SENSOR
TEMPERATURE ERROR
MAX1253/54
toc18
TEMPERATURE (
°C)
ERROR
(°
C)
60
40
20
0
-20
-1.6
-1.2
-0.8
-0.4
0
0.4
0.8
1.2
1.6
2.0
-2.0
-40
80
MAX1253/MAX1254
EXTERNAL SENSOR,
DIFFERENTIAL INPUT
EXTERNAL SENSOR,
SINGLE-ENDED INPUT
TEMPERATURE ERROR vs. INTERCONNECT
CAPACITANCE (EXTERNAL SENSOR)
MAX1253/54
toc19
INTERCONNECT CAPACITANCE (pF)
TEMPERATURE
(°
C)
-5
-4
-3
-2
-1
0
1
-6
1
10
100
1000
EXTERNAL DIODE
DIFFERENTIAL TEMPERATURE
MEASUREMENT MODE
SAMPLING ERROR
vs. INPUT SOURCE IMPEDANCE
MAX1253/54
toc20
SOURCE IMPEDANCE (
)
SAMPLING
ERROR
(LSB)
1000
100
-4
-3
-2
-1
0
1
-5
10
10,000
TURN ON THERMAL TRANSIENT,
CONTINUOUS CONVERSION
VDD = 3.0V
MAX1253/54
toc21
TIME (s)
TEMPERATURE
SHIFT
(°
C)
25
20
15
10
5
0
0.125
0.250
0.375
0.500
0.625
-0.125
030
IN A TSSOP SOCKET
SOLDER ON A 2in 2in PWB
IN AN OIL BATH
EXTERNAL BJT
Typical Operating Characteristics (continued)
(VDD = +3V, VREF = 2.5V (MAX1253); VDD = 5V, VREF = 4.096V (MAX1254); fSCLK = 10MHz, CREF = 0.1F, TA = +25°C, unless oth-
erwise noted.)