Datasheet

Section 17 A/D Converter
Rev. 6.00 Mar. 18, 2010 Page 689 of 982
REJ09B0054-0600
Section 17 A/D Converter
This LSI includes a successive approximation type 10-bit A/D converter that allows up to eight
analog input channels to be selected. A block diagram of the A/D converter is shown in figure
17.1.
17.1 Features
• 10-bit resolution
• Eight input channels
• Conversion time: 9.6 µs per channel (at 13.5 MHz operation)
• Two operating modes
Single mode: Single-channel A/D conversion
Scan mode: Continuous A/D conversion on 1 to 4 channels
• Four data registers
Conversion results are held in a 16-bit data register for each channel
• Sample and hold function
• Three methods conversion start
Software
Timer (TPU or 8-bit timer) conversion start trigger
External trigger signal
• Interrupt request
An A/D conversion end interrupt request (ADI) can be generated
• Module stop mode can be set
• Selectable range voltages of analog inputs
The range of voltages of analog inputs to be converted can be specified using the V
ref
signal as
the analog reference voltage.
ADCMS35C_000020020700