Usage Notes; A/D Conversion Characteristics; Table 19.5 A/D Conversion Characteristics - Hitachi HD64465 User Manual

19.5

Usage Notes

When using the A/D converter, note the following points:
Analog Input Voltage Range: During A/D conversion, the voltages input to the analog input pins
ANn should be in the range 0 ≤ ANn ≤ 3.3V. (n = 0 to 3)
AVcc and AVss Input Voltages: AVss should have the following value: AVss = Vss.
If the A/D converter is not used, the values should be AVcc = Vss and AVss = Vss.
19.6

A/D Conversion Characteristics

Table 19-5 lists the A/D conversion characteristics.

Table 19.5 A/D Conversion Characteristics

(Vcc = 5 ± 0.5V, AVcc = 5 ± 0.5V, Ta = -20 to 75 °C)
Item
Resolution
Conversion time
Analog input capacitance
Permissible signal-source impedance
Non-linearity error
Offset error
Full-scale error
Quantization error
Absolute accuracy
Min Typ
10 10
- -
- -
- -
- -
- -
- -
- -
- -
Max Unit
10 bits
µs
10
20 pF
5 KΩ
±3.0
LSB
±2.0
LSB
±2.0
LSB
±0.5
LSB
±4.0
LSB
Rev. 3.0, 03/01, page 345 of 390