C8051F040/1/2/3/4/5/6/7
Rev. 1.5 103
Table 7.2. ADC2 Electrical Characteristics
V
DD
= 3.0 V, AV+ = 3.0 V, V
REF2
= 2.40 V (REFBE = 0), PGA2 = 1, –40 to +85 °C unless otherwise specified.
Parameter Conditions Min Typ Max Units
DC Accuracy
Resolution 8bits
Integral Nonlinearity ——±1LSB
Differential Nonlinearity Guaranteed Monotonic ——±1LSB
Offset Error — 0.5±0.3 — LSB
Full Scale Error Differential mode — –1±0.2 — LSB
Dynamic Performance (10 kHz sine-wave input, 0 to 1 dB below Full Scale, 500 ksps)
Signal-to-Noise Plus Distortion 45 47 — dB
Total Harmonic Distortion
Up to the 5
th
harmonic
—–51— dB
Spurious-Free Dynamic Range —52— dB
Conversion Rate
SAR Conversion Clock
Frequency
—— 6MHz
Conversion Time in SAR Clocks 8 — — clocks
Track/Hold Acquisition Time 300 — — ns
Throughput Rate ——500ksps
Analog Inputs
Input Voltage Range Single-ended 0 — VREF V
Common Mode Range 0—AV+V
Input Capacitance —5—pF
Power Specifications
Power Supply Current
(AV+ supplied to ADC2)
Operating Mode, 500 ksps
—420900 µA
Power Supply Rejection —±0.3— mV/V
