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HD6433044 Datasheet, PDF (697/867 Pages) Hitachi Semiconductor – Hitachi Single-Chip Microcomputer
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21.3.3 A/D Conversion Characteristics
Table 21-16 lists the A/D conversion characteristics.
Table 21-16 A/D Converter Characteristics
Condition A: VCC = 2.7 V to 5.5 V, AVCC = 2.7 V to 5.5 V, VREF = 2.7 V to AVCC,
VSS = AVSS = 0 V, ø = 1 MHz to 8 MHz, Ta = –20°C to +75°C (regular
specifications), Ta = –40°C to +85°C (wide-range specifications)
Condition C: VCC = 5.0 V ± 10%, AVCC = 5.0 V ± 10%, VREF = 4.5 V to AVCC,
VSS = AVSS = 0 V, ø = 1 MHz to 16 MHz, Ta = –20°C to +75°C (regular
specifications), Ta = –40°C to +85°C (wide-range specifications)
Condition A
Condition C
8 MHz
16 MHz
Item
Min
Typ
Max
Min
Typ
Max
Unit
Resolution
10
10
10
10
10
10
bits
Conversion time
—
—
16.8
—
—
8.4
µs
Analog input capacitance
—
—
20
—
—
20
pF
Permissible signal-source
—
—
10*1
—
—
10*3
kΩ
impedance
—
—
5*2
—
—
5*4
Nonlinearity error
—
—
±6.0
—
—
±3.0
LSB
Offset error
—
—
±4.0
—
—
±2.0
LSB
Full-scale error
—
—
±4.0
—
—
±2.0
LSB
Quantization error
—
—
±0.5
—
—
±0.5
LSB
Absolute accuracy
—
—
±8.0
—
—
±4.0
LSB
Notes: 1. The value is for 4.0 ≤ AVCC ≤ 5.5.
2. The value is for 2.7 ≤ AVCC < 4.0.
3. The value is for ø ≤ 12 MHz.
4. The value is for ø > 12 MHz.
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