Philips Semiconductors
Product specification
Temperature monitor for microprocessor systems
NE1617
TYPICAL PERFORMANCE CHARACTERISTICS
20
V
IN
= 100mV and AC coupled to D–
PP
6
15
4
10
5
D+ TO GND
2
0
0
–5
–2
–4
–6
D+ TO V
DD
–10
–15
–20
1
10
100
FREQUENCY (kHz)
1000
10000
1
10
LEAKAGE RESISTANCE (MΩ)
100
SL01212
SL01214
Figure 4. Temperature error vs. PC board resistance
Figure 5. Temperature error vs. common_mode noise
frequency
V
IN
= 100mV and AC coupled to D– and D+
5
0
PP
6
4
–5
2
0
–10
–15
–20
–2
–4
–6
0
20
40
60
80
100
1
10
100
1000
10000
FREQUENCY (kHz)
D+ to D– CAPACITANCE (nF)
SL01211
SL01213
Figure 6. Temperature error vs. differential mode noise
frequency
Figure 7. Temperature error vs. D+to D– capacitance
7
1999 Mar 19
NXP [ NXP ]
