516
20.1.4
A/D Converter Characteristics
Table 20.14 A/D Converter Characteristics
Conditions: V
CC
= 5.0 V ±10%, AV
CC
= 5.0 V ±10%, AV
CC
= V
CC
±10%, AV
ref
= 4.5 V to
AV
CC
, V
SS
= AV
SS
= 0 V, Ta = –20 to +75°C*
Note: * Regular-specification products; for wide-temperature-range products, Ta = –40 to +85°C
12.5 MHz
20 MHz
Item
Min
Typ
Max
Min
Typ
Max
Unit
Resolution
10
10
10
10
10
10
bit
Conversion time
—
—
11.2
—
—
6.7
µS
Analog input capacitance
—
—
20
—
—
20
pF
Permissible signal-source impedance
—
—
3
—
—
3
k
Ω
Nonlinearity error
—
—
±3
—
—
±3
LSB
Offset error
—
—
±3
—
—
±3
LSB
Full-scale error
—
—
±3
—
—
±3
LSB
Quantization error
—
—
±0.5
—
—
±0.5
LSB
Absolute accuracy
—
—
±4
—
—
±4
LSB
Table 20.14 A/D Converter Characteristics (cont)
Conditions: V
CC
= 3.0 to 5.5 V, AV
CC
= 3.0 to 5.5 V, AV
CC
= V
CC
±10%, AV
ref
= 3.0 V to
AV
CC
, V
SS
= AV
SS
= 0 V, Ta = –20 to +75°C*
Note: * Regular-specification products; for wide-temperature-range products, Ta = –40 to +85°C
12.5 MHz
Item
Min
Typ
Max
Unit
Resolution
10
10
10
bit
Conversion time
—
—
11.2
µS
Analog input capacitance
—
—
20
pF
Permissible signal-source impedance
—
—
3
k
Ω
Nonlinearity error
—
—
±4.0
LSB
Offset error
—
—
±4.0
LSB
Full-scale error
—
—
±4.0
LSB
Quantization error
—
—
±0.5
LSB
Absolute accuracy
—
—
±6.0
LSB
Содержание HD6417032
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Страница 525: ...490 CK RAS CAS TRp TRc TRcc tRASD1 tRASD2 tCASD3 tCASD2 TRr tCSR Figure 20 18 Self Refresh ...
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