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Rev. 1.1
45
C8051F55x/56x/57x
Table 5.10. Temperature Sensor Electrical Characteristics
VDDA = 1.8 to 2.75 V, –40 to +125 °C unless otherwise specified.
Parameter
Conditions
Min
Typ
Max
Units
Linearity
—
±0.1
—
°C
Slope
—
3.33
—
mV/°C
Slope Error*
—
88
—
V/°C
Offset
Temp = 0 °C
—
856
—
mV
Offset Error*
Temp = 0 °C
—
±14
—
mV
Power Supply Current
—
18
—
A
Tracking Time
12
—
s
*Note: Represents one standard deviation from the mean.
Table 5.11. Voltage Reference Electrical Characteristics
VDDA = 1.8 to 2.75 V, –40 to +125 °C unless otherwise specified.
Parameter
Conditions
Min
Typ
Max
Units
Internal Reference (REFBE = 1)
Output Voltage
25 °C ambient (REFLV = 0)
1.45
1.50
1.55
V
25 °C ambient (REFLV = 1), VDD = 2.6 V
2.15
2.20
2.25
VREF Short-Circuit Current
—
5
10
mA
VREF Temperature
Coefficient
—
38
—
ppm/°C
Power Consumption
Internal
—
30
50
A
Load Regulation
Load = 0 to 200 A to AGND
—
3
—
V/A
VREF Turn-on Time 1
4.7 F tantalum and 0.1 F bypass
—
1.5
—
ms
VREF Turn-on Time 2
0.1 F bypass
—
46
—
s
Power Supply Rejection
—
1.2
—
mV/V
External Reference (REFBE = 0)
Input Voltage Range
1.5
—
VDDA
V
Input Current
Sample Rate = 200 ksps; VREF = 1.5 V
—
2.1
—
A
Power Specifications
Reference Bias Generator
REFBE = 1 or TEMPE = 1
—
21
40
A