HD64F2357VF13 Datasheet, PDF (583/1049 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Digital output
Ideal A/D conversion
111
characteristic
110
101
100
011
010
Quantization error
001
000
12
1024 1024
1022 1023 _FS
1024 1024
Analog
input voltage
Figure 16-8 A/D Conversion Precision Definitions (1)
Digital output
Full-scale error
Ideal A/D conversion
characteristic
Nonlinearity
error
Actual A/D conversion
characteristic
Offset error
FS
Analog
input voltage
Figure 16-9 A/D Conversion Precision Definitions (2)
Permissible Signal Source Impedance: H8S/2357 Group analog input is designed so that conversion precision is
guaranteed for an input signal for which the signal source impedance is 10 kohm or less. This specification is provided to
enable the A/D converter's sample-and-hold circuit input capacitance to be charged within the sampling time; if the sensor
output impedance exceeds 10 kohm, charging may be insufficient and it may not be possible to guarantee the A/D
conversion precision.
Rev.6.00 Oct.28.2004 page 553 of 1016
REJ09B0138-0600H