Datasheet

Section 27 Electrical Characteristics
Rev. 3.00 Mar 21, 2006 page 756 of 788
REJ09B0300-0300
27.2.4 A/D Conversion Characteristics
Tables 27.27 and 27.28 list the A/D conversion characteristics.
Table 27.27 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 (normal specification product),
T
a
= –40 to +85°C (wide range temperature specification product)
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 (normal specification product),
T
a
= –40 to +85°C (wide range temperature specification product)
Condition C: V
CC
= 2.7 V to 3.6 V, AV
CC
= 2.7 V to 3.6 V, AV
ref
= 2.7 V to AV
CC
,
V
SS
= AV
SS
= 0 V, φ = 2 MHz to maximum operating frequency,
T
a
= –20 to +75°C
Condition C Condition B Condition A
10 MHz 16 MHz 20 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
*
3
——13.4 ——8.4 ——6.7 µs
Analog input
capacitance
——20 ——20 ——20 pF
10
*
1
10
*
1
Permissible signal-
source impedance
——5 ——
5
*
2
——
5
*
2
kΩ
Nonlinearity error ——±7.0 ——±3.0 ——±3.0 LSB
Offset error ——±7.5 ——±3.5 ——±3.5 LSB
Full-scale error ——±7.5 ——±3.5 ——±3.5 LSB
Quantization error ——±0.5 ——±0.5 ——±0.5 LSB
Absolute accuracy ——±8.0 ——±4.0 ——±4.0 LSB
Notes: 1. When conversion time ≥ 11.17 µs (CKS = 0, or φ ≤ 12 MHz at CKS = 1)
2. When conversion time < 11.17 µs (φ > 12 MHz at CKS = 1)
3. At the maximum operating frequency in single mode.