SAM3SD8C Atmel Corporation, SAM3SD8C Datasheet - Page 1100

• Manufacturer Part Number: SAM3SD8C
• Manufacturer: Atmel Corporation

40.9
Table 40-42. Analog Comparator Characteristics
40.10 Temperature Sensor
Table 40-43. Temperature Sensor Characteristics
1100
1100
Parameter
Voltage Range
Input Voltage Range
Input Offset Voltage
Current Consumption
Hysteresis
Settling Time
Symbol
V
Δ
dV
V
T
T
T
/dT
Analog Comparator Characteristics
SAM3S8/SD8
SAM3S8/SD8
Parameter
Output Voltage
Output Voltage Accuracy
Temperature Sensitivity (slope
voltage versus temperature
Slope accuracy
Temperature accuracy
The temperature sensor is connected to Channel 15 of the ADC.
The temperature sensor provides an output voltage (V
ature (PTAT). The V
mV/°C.
The V
dV
voltage.
The user needs to calibrate it (offset calibration) at ambient temperature in order to get rid of the
VT spread at ambient temperature (+/-15%).
T
/dT = 2.65 mV/°C only shows a ±5% slight variation over process, mismatch and supply
T
voltage equals 0.8V at 27°C, with a ±15% accuracy. The V
Conditions
The Analog Comparator is supplied by
VDDIN
On VDDIN
Low Power Option (ISEL = 0)
High Speed Option (ISEL = 1)
HYST = 0x00
HYST = 0x01 or 0x10
HYST = 0x11
Given for overdrive > 100 mV
Low Power Option
High Speed Option
T° = 27° C
Conditions
T° = 27° C
after offset calibration
over temperature range [-40°C / +85°C]
after offset calibration
over temperature range [0°C / +80°C]
T
output voltage linearly varies with a temperature slope dV
GND + 0.2
1.62
Min
T
) that is proportional to absolute temper-
Min
-15
-5
-5
-3
Typ
3.3
16
35
0
T
slope versus temperature
0.800
2.65
Typ
VDDIN - 0.2
11090A–ATARM–10-Feb-12
11090A–ATARM–10-Feb-12
Max
170
3.6
0.1
20
25
50
90
0
1
Max
+15
+5
+5
+3
T
/dT = 2.65
Units
mV/°C
Units
mV
mV
µA
µs
V
V
°C
°C
%
%
V