C8051F902-GD View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

MFG CO.

C8051F902-GD

Single/Dual Battery, 0.9–3.6 V, 16–8 kB, SmaRTClock, 12/10-Bit ADC MCU

Silicon Laboratories 

Prev 51 52 53 54 55 56 57 58 59 60 Next

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

Share Link: