C8051F124-GQR Datasheet, PDF (118/350 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
V_DD = 3.0 V, AV+ = 3.0 V, –40 to +85 °C unless otherwise specified.
Parameter
Conditions
Min
Analog Bias Generator Power
Supply Current
BIASE = 1
—
Internal Reference (REFBE = 1)
Output Voltage
25 °C ambient
2.36
VREF Short-Circuit Current
—
VREF Temperature Coefficient
—
Load Regulation
Load = 0 to 200 µA to AGND
—
VREF Turn-on Time 1
4.7 µF tantalum, 0.1 µF ceramic —
bypass
VREF Turn-on Time 2
0.1 µF ceramic bypass
—
VREF Turn-on Time 3
no bypass cap
—
Reference Buffer Power Sup-
—
ply Current
Power Supply Rejection
—
External Reference (REFBE = 0)
Input Voltage Range
1.00
Input Current
—
Typ
Max
100
—
Units
µA
2.43
2.48
V
—
30
mA
15
—
ppm/°C
0.5
—
ppm/µA
2
—
ms
20
—
µs
10
—
µs
40
—
µA
140
—
ppm/V
— (AV+) – 0.3
V
0
1
µA
118
Rev. 1.4