參數(shù)資料
型號(hào): SAB-C515-1RM
廠商: INFINEON TECHNOLOGIES AG
元件分類: 8位微控制器
英文描述: 8-Bit CMOS Microcontroller
中文描述: 8位CMOS微控制器
文件頁(yè)數(shù): 32/55頁(yè)
文件大?。?/td> 268K
代理商: SAB-C515-1RM
C515
Semiconductor Group
32
1997-08-01
8-Bit A/D Converter
The C515 provides an A/D converter with the following features:
– Eight multiplexed input channels
– The possibility of using the analog inputs (port 6) also as digital inputs
– Programmable internal reference voltages (16 steps each) via resistor array
– 8-bit resolution within the selected reference voltage range
– Internal start-of-conversion trigger
– Interrupt request generation after each conversion
For the A/D conversion, the method of successive approximation via capacitor array is used. The
externally applied reference voltage range has to be held on a fixed value within the specifications
(see section "A/D Converter Characteristics" in this data sheet). The internal reference voltages can
be varied to reduce the reference voltage range of the A/D converter and thus to achieve a higher
resolution.
Figure 14
shows a block diagram of the A/D converter.
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