C8051F120 Datasheet, PDF (120/356 Pages) Silicon Laboratories – Mixed Signal ISP Flash MCU Family

C8051F120/1/2/3/4/5/6/7
C8051F130/1/2/3
Table 9.1. Voltage Reference Electrical Characteristics
VDD = 3.0 V, AV+ = 3.0 V, -40°C to +85°C unless otherwise specified
Parameter
Conditions
Min Typ Max
Units
Analog Bias Generator Power BIASE = 1
Supply Current
100
µA
Internal Reference (REFBE = 1)
Output Voltage
25°C ambient
2.36 2.43 2.48
V
VREF Short-Circuit Current
30
mA
VREF Temperature Coefficient
15
ppm/°C
Load Regulation
Load = 0 to 200 µA to AGND
0.5
ppm/µA
VREF Turn-on Time 1
4.7µF tantalum, 0.1µF ceramic
2
ms
bypass
VREF Turn-on Time 2
0.1µF ceramic bypass
20
µs
VREF Turn-on Time 3
no bypass cap
10
µs
Reference Buffer Power Supply
Current
40
µA
Power Supply Rejection
140
ppm/V
External Reference (REFBE = 0)
Input Voltage Range
1.00
(AV+) - 0.3 V
Input Current
0
1
µA
120
Rev. 1.3