Table 9.1. Voltage Reference Electrical Characteristics - Silicon Laboratories C8051F12 Series Manual

C8051F120/1/2/3/4/5/6/7 C8051F130/1/2/3

Table 9.1. Voltage Reference Electrical Characteristics

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