Datasheet

Section 26 Electrical Characteristics
Rev. 4.00 Sep 27, 2006 page 796 of 1130
REJ09B0327-0400
26.2.4 A/D Conversion Characteristics
Tables 26.12 and 26.13 list the A/D conversion characteristics.
Table 26.12 A/D Conversion Characteristics
(AN7 to AN0 Input: 134/266-State Conversion)
Condition A: V
CC
= 5.0 V ±10%, AV
CC
= 5.0 V ±10%, AV
ref
= 4.5 V to AV
CC
,
V
SS
= AV
SS
= 0 V, φ = 2 MHz to maximum operating frequency,
T
a
= –20 to +75°C (regular specifications),
T
a
= –40 to +85°C (wide-range specifications)
Condition B: V
CC
= 4.0 V to 5.5 V, AV
CC
= 4.0 V to 5.5 V, AV
ref
= 4.0 V to AV
CC
,
V
SS
= AV
SS
= 0 V, φ = 2 MHz to maximum operating frequency,
T
a
= –20 to +75°C (regular specifications),
T
a
= –40 to +85°C (wide-range specifications)
Condition C: V
CC
= 3.0 V to 5.5 V, AV
CC
= 3.0 V to 5.5 V, AV
ref
= 3.0 V to AV
CC
,
V
SS
= AV
SS
= 0 V, φ = 2 MHz to maximum operating frequency,
T
a
= –20 to +75°C
Condition A Condition B Condition C
20 MHz 16 MHz 10 MHz
Item Min Typ Max Min Typ Max Min Typ Max Unit
Resolution 10 10 10 10 10 10 10 10 10 Bits
Conversion time
*
5
——6.7 ——8.4 ——13.4 µs
Analog input
capacitance
——20 ——20 ——20 pF
——10
*
3
——10
*
3
——10
*
1
kΩPermissible signal-
source
impedance
5
*
4
5
*
4
5
*
2
Nonlinearity error ——±3.0 ——±3.0 ——±7.0 LSB
Offset error ——±3.5 ——±3.5 ——±7.5 LSB
Full-scale error ——±3.5 ——±3.5 ——±7.5 LSB
Quantization error ——±0.5 ——±0.5 ——±0.5 LSB
Absolute accuracy ——±4.0 ——±4.0 ——±8.0 LSB
Notes: 1. When 4.0 V ≤ AV
CC
≤ 5.5 V
2. When 3.0 V ≤ AV
CC
< 4.0 V
3. When conversion time ≥ 11. 17 µs (CKS = 1 and φ ≤ 12 MHz, or CKS = 0)
4. When conversion time < 11. 17 µs (CKS = 1 and φ > 12 MHz)
5. In single mode and φ = maximum operating frequency.