C8051F920 View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

MFG CO.

C8051F920

Single/Dual Battery, 0.9–3.6 V, 64/32 kB, SmaRTClock, 10-Bit ADC MCU

Silicon Laboratories 

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Table 4.9. ADC0 Electrical Characteristics

VDD = 1.8 to 3.6V V, VREF = 1.65 V (REFSL[1:0] = 11), –40 to +85 °C unless otherwise specified.

Parameter

Resolution

Conditions

DC Accuracy

Min Typ Max Units

10

bits

Integral Nonlinearity

—

±0.5

±1

LSB

Differential Nonlinearity

Guaranteed Monotonic

—

±0.5

±1

LSB

Offset Error

—

±<1

±2

LSB

Full Scale Error

—

±1

±2.5

LSB

Dynamic performance (10 kHz sine-wave single-ended input, 1 dB below Full Scale, 300 ksps)

Signal-to-Noise Plus Distortion

54

58

—

dB

Signal-to-Distortion

—

73

—

dB

Spurious-Free Dynamic Range

—

75

—

dB

SAR Conversion Clock

Conversion Rate

—

—

7.33 MHz

Conversion Time in SAR Clocks

10-bit Mode

8-bit Mode

13

—

— clocks

11

—

—

Track/Hold Acquisition Time

1.5

—

—

µs

Throughput Rate

—

—

300 ksps

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

1x Gain

0.5x Gain

—

30

—

pF

28

Input Multiplexer Impedance

—

5

—

k

Power Supply Current 

(VDD supplied to ADC0)

Power Supply Rejection

Power Specifications

Conversion Mode (300 ksps)

—

800

—

µA

Tracking Mode (0 ksps)

—

680

—

Internal High Speed VREF

External VREF

—

67

—

dB

—

74

—

Rev. 1.3

61

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