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HD6433044 Datasheet, PDF (680/867 Pages) Hitachi Semiconductor – Hitachi Single-Chip Microcomputer
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21.2.3 A/D Conversion Characteristics
Table 21-8 lists the A/D conversion characteristics.
Table 21-8 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 B: VCC = 3.15 V to 5.5 V, AVCC = 3.15 V to 5.5 V, VREF = 3.15 V to AVCC,
VSS = AVSS = 0 V, ø = 1 MHz to 13 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 18 MHz, Ta = –20°C to +75°C (regular
specifications), Ta = –40°C to +85°C (wide-range specifications)
Condition A
Condition B
Condition C
8 MHz
13 MHz
16 MHz
18 MHz
Item
Min Typ Max Min Typ Max Min Typ Max Min Typ Max Unit
Resolution
10 10 10 10 10 10 10 10 10 10 10 10 bits
Conversion time — — 16.8 — — 10.4 — — 8.4 — — 7.5 µs
Analog input
capacitance
— — 20 — — 20 — — 20 — — 20 pF
Permissible signal- — — 10*1 — — 10*1 — — 10*3 — — 10*3 kΩ
source impedance — — 5*2 — — 5*2 — — 5*4 — — 5*4
Nonlinearity error — — ±6.0 — — ±6.0 — — ±3.0 — — ±3.0 LSB
Offset error
— — ±4.0 — — ±4.0 — — ±2.0 — — ±2.0 LSB
Full-scale error
— — ±4.0 — — ±4.0 — — ±2.0 — — ±2.0 LSB
Quantization error — — ±0.5 — — ±0.5 — — ±0.5 — — ±0.5 LSB
Absolute accuracy — — ±8.0 — — ±8.0 — — ±4.0 — — ±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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