5-Channel Precision Temperature Monitor
with Beta Compensation
_______________________________________________________________________________________ 5
Typical Operating Characteristics
(V
CC
= 3.3V, V
STBY
= V
CC
, T
A
= +25癈, unless otherwise noted.)
SOFTWARE STANDBY SUPPLY CURRENT
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
3.5
3.4
3.1
3.2
3.3
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.0
3.0
3.6
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
3.4
3.2
400
450
500
550
600
650
350
3.0
3.6
LOW BETA DIODE CONNECTED TO
CHANNEL 1 WITH RESISTANCE
CANCELLATION AND LOW BETA
0
50
25
75
100
125
REMOTE-DIODE TEMPERATURE ERROR
vs. REMOTE-DIODE TEMPERATURE
TEMPERATURE (癈)
-4
-3
-2
-1
0
1
2
3
4
5
-5
CHANNEL 2
CHANNEL 1
-3
-2
-1
0
1
2
3
4
0
25
50
75
100
125
LOCAL TEMPERATURE ERROR
vs. DIE TEMPERATURE
DIE TEMPERATURE (癈)
REMOTE-DIODE TEMPERATURE ERROR
vs. POWER-SUPPLY NOISE FREQUENCY
FREQUENCY (MHz)
-4
-3
-2
-1
0
1
2
3
4
5
-5
1.000
0.100
0.010
0.001
10.000
100mV
P-P
CHANNEL 2
CHANNEL 1
LOCAL TEMPERATURE ERROR
vs. POWER-SUPPLY NOISE FREQUENCY
FREQUENCY (MHz)
-4
-3
-2
-1
0
1
2
3
4
5
-5
1.000
0.100
0.010
0.001
10.000
100mV
P-P
CH 2 REMOTE-DIODE TEMPERATURE ERROR
vs. COMMON-MODE NOISE FREQUENCY
FREQUENCY (MHz)
1.0
0.1
10.0
-4
-3
-2
-1
0
1
2
3
4
-5
100mV
P-P
CH 1 REMOTE-DIODE TEMPERATURE
ERROR vs. CAPACITANCE
CAPACITANCE (nF)
10
-4
-3
-2
-1
0
1
2
3
4
5
-5
1
100
CH 2 REMOTE-DIODE TEMPERATURE
ERROR vs. CAPACITANCE
CAPACITANCE (nF)
10
-4
-3
-2
-1
0
1
2
3
4
5
-5
1
100