Table 5.1. ADC0 Electrical Characteristics
V
DD
= 3.0 V, VREF = 2.40 V, –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
-e
nded input, 1 dB below Full Scale, 200 ksps)
Signal-to-Noise Plus Distortion 53 55.5 — dB
Total Harmonic Distortion Up to the 5
th
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
VREF
V
V
Absolute Pin Voltage with respect
to GND
Sin
gle Ended or Differential 0 — VDD V
Input Capacitance — 5 — pF
Temperature Sensor — — —
Linearity
1
— ±0.1 — °C
Gain
2
— 2.86 — mV/°C
Offset
1,2
(Temp = 0 °C) — 0.776
±8.5
— mV
Power Specifications
Power Supply Current
(V
DD
supplied to ADC0)
Operating Mode, 200 ksps — 400 900 µA
Power Supply Rejection — ±0.3 mV/V
Notes:
1. Includes ADC offset, gain, and linearity variations.
2. Represents one standard deviation from the mean.
C8051F320/1
54 Rev. 1.4
