C8051F901-GD View Datasheet(PDF) - Silicon Laboratories
Part Name
Description
MFG CO.
C8051F901-GD
Silicon Laboratories
'C8051F901-GD' PDF : 318 Pages View PDF
C8051F91x-C8051F90x
Table 4.10. ADC0 Electrical Characteristics (Continued)
VDD = 1.8 to 3.6V V, VREF = 1.65 V (REFSL[1:0] = 11), –40 to +85 °C unless otherwise specified.
Parameter
Conditions
Min
Typ Max Units
Analog Inputs
ADC Input Voltage Range
Single Ended (AIN+ – GND)
0
— VREF V
Absolute Pin Voltage with respect
to GND
Single Ended
0
—
VDD
V
Sampling Capacitance
(C8051F912/11/02/01)
1x Gain
0.5x Gain
—
28
—
pF
26
Input Multiplexer Impedance
—
5
—
k
Power Specifications
Power Supply Current
(VDD supplied to ADC0)
Conversion Mode (300 ksps)
—
720
—
µA
Tracking Mode (0 ksps)
—
680
—
Power Supply Rejection
Internal High Speed VREF
—
67
—
dB
External VREF
—
74
—
Notes:
1. Blue indicates a feature only available on ‘F912 and ‘F902 devices.
2. INL and DNL specifications for 12-bit mode do not include the first or last four ADC codes.
3. The maximum code in 12-bit mode is 0xFFFC. The Full Scale Error is referenced from the maximum code.
4. Performance in 8-bit mode is similar to 10-bit mode.
Table 4.11. Temperature Sensor Electrical Characteristics
VDD = 1.8 to 3.6V V, –40 to +85 °C unless otherwise specified.
Parameter
Linearity
Conditions
Min Typ Max Units
—
±1
—
°C
Slope
—
3.40
— mV/°C
Slope Error1
—
40
— µV/°C
Offset
Offset Error1
Temperature Sensor Settling
Time2
Temp = 25 °C
Temp = 25 °C
Initial Voltage=0 V
Initial Voltage=3.6 V
— 1025 —
mV
—
18
—
mV
—
—
3.0
µs
6.5
Supply Current
—
35
—
µA
Notes:
1. Represents one standard deviation from the mean.
2. The temperature sensor settling time, resulting from an ADC mux change or enabling of the temperature
sensor, varies with the voltage of the previously sampled channel and can be up to 6 µs if the previously
sampled channel voltage was greater than 3 V. To minimize the temperature sensor settling time, the ADC
mux can be momentarily set to ground before being set to the temperature sensor output. This ensures that
the temperature sensor output will settle in 3 µs or less.
Rev. 1.0
55
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