Freescale Semiconductor 56F8122 - Manual (Page 107)

AC Electrical Characteristics
56F8322 Technical Data, Rev. 10.0
Freescale Semiconductor 107
Preliminary
10.2.2 Temperature Sense
Note: Temperature Sensor is NOT available in the 56F8122 device.
10.3 AC Electrical Characteristics
Tests are conducted using the input levels specified in Table 10-5 . Unless otherwise specified,
propagation delays are measured from the 50% to the 50% point, and rise and fall times are measured
between the 10% and 90% points, as shown in
Figure 10-1 .
Table 10-11 Temperature Sense Parametrics
Characteristics Symbol Min Typical Max Unit
Slope (Gain) 1 m — 7.762 — mV/°C
Room Trim Temp. 1, 2
1. Includes the ADC conversion of the analog Temperature Sense voltage.
2. The ADC is not calibrated for the conversion of the Temperature Sensor trim value stored in the Flash Memory at
FMOPT0 and FMOPT1.
T
RT
24 26 28 °C
Hot Trim Temp. (Industrial)
1,2 T
HT
122 125 128 °C
Hot Trim Temp. (Automotive)
1,2 T
HT
147 150 153 °C
Output Voltage @
V
DDA_ADC
= 3.3V, T
J
=0°C
1
V
TS0
— 1.370 — V
Supply Voltage V
DDA_ADC
3.0 3.3 3.6 V
Supply Current - OFF I
DD-OFF
— — 10
µ
A
Supply Current - ON I
DD-ON
— — 250
µ
A
Accuracy
3,1
from -40°C to 150°C
Using V
TS
= mT + V
TS0
3. See Application Note, AN1980, for methods to increase accuracy.
T
ACC
-6.7 0 6.7 °C
Resolution
4, 5,1
4. Assuming a 12-bit range from 0V to 3.3V.
5. Typical resolution calculated using equation, R
ES
= (V
REFH
- V
REFLO
) X 1
2
12
m
R
ES
— 0.104 — °C / bit