Temperature Sensing Diode
Table 3–5 shows the specifications for bias voltage and current of the
Arria GX temperature sensing diode.
Table 3–5. Temperature-Sensing Diode Electrical Characteristics
Parameter
Minimum
Typical
Maximum
Unit
IBIAS high
80
8
100
10
120
12
0.9
—
μA
μA
V
IBIAS low
VBP - VBN
VBN
0.3
—
—
—
0.7
—
V
Series resistance
3
Ω
The temperature-sensing diode works for the entire operating range, as
shown in Figure 3–2.
Figure 3–2. Temperature vs. Temperature-Sensing Diode Voltage
0.95
0.90
0.85
0.80
0.75
0.70
0.65
0.60
0.55
0.50
0.45
0.40
100 μA Bias Current
10 μA Bias Current
Voltage
(Across Diode)
–55
–30
–5
20
45
70
95
120
Temperature (˚C)
Altera Corporation
May 2008
3–11
Arria GX Device Handbook, Volume 1
ALTERA [ ALTERA CORPORATION ]
