Product data

126
22.3.4 A/D Conversion Characteristics
Tables 22.23 and 22.24 list the A/D conversion characteristics.
Table 22.23 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%
V
SS
= AV
SS
= 0 V, ø = 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
V
SS
= AV
SS
= 0 V, ø = 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
= 2.7 V to 3.6 V, AV
CC
= 2.7 V to 3.6 V
V
SS
= AV
SS
= 0 V, ø = 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
*
3
— — 6.7 — — 8.4 — — 13.4 µs
Analog input
capacitance
——20 ——20 ——20 pF
Permissible signal-
source
——10
*
1
——10
*
1
——5 kΩ
impedance
5
*
2
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 conversion time ≥ 11. 17 µs (CKS = 1 and ø ≤ 12 MHz, or CKS = 0)
*2 When conversion time < 11. 17 µs (CKS = 1 and ø > 12 MHz)
*3 At the maximum operating frequency in single mode