Rev. 1.7
55
C8051F330/1/2/3/4/5
Table 5.1. ADC0 Electrical Characteristics
VDD = 3.0 V, VREF = 2.40 V (REFSL=0), –40 to +85 °C unless otherwise specified.
Parameter
Conditions
Min
Typ
Max
Units
DC Accuracy
Resolution
10
bits
Integral Nonlinearity
—
±0.5
±1
LSB
Differential Nonlinearity
Guaranteed Monotonic
—
±0.5
±1
LSB
Offset Error
-15
0
15
LSB
Full Scale Error
-15
–1
15
LSB
Offset Temperature Coefficient
—
10
—
ppm/°C
Dynamic performance (10 kHz sine-wave single-ended input, 1 dB below Full Scale, 200 ksps)
Signal-to-Noise Plus Distortion
53
55.5
—
dB
Total Harmonic Distortion
Up to the 5th harmonic
—
–67
—
dB
Spurious-Free Dynamic Range
—
78
—
dB
Conversion Rate
SAR Conversion Clock
—
3
MHz
Conversion Time in SAR Clocks
10
—
clocks
Track/Hold Acquisition Time
300
—
ns
Throughput Rate
—
200
ksps
Analog Inputs
ADC Input Voltage Range
Single Ended (AIN+ – GND)
Differential (AIN+ – AIN–)
0
–VREF
—
VREF
V
Absolute Pin Voltage with respect
to GND
Single Ended or Differential
0
—
VDD
V
Input Capacitance
—
5
—
pF
Temperature Sensor
Linearity
—
± 0.2
—
°C
Absolute Accuracy
—
± 3
—
°C
Gain
—
2.86
—
mV/°C
Gain Error*
—
±33.5
—
V/°C
Offset
Temp = 0 °C
—
776
—
mV
Offset Error*
—
±8.51
—
mV
Power Specifications
Power Supply Current
(VDD supplied to ADC0)
Operating Mode, 200 ksps
—
400
900
A
Power Supply Rejection
—
±0.3
—
mV/V
*Note: Represents one standard deviation from the mean.