参数资料
型号: AD664KN-UNI
厂商: Analog Devices Inc
文件页数: 5/23页
文件大小: 0K
描述: IC DAC 12BIT QUAD UNIPOL 28-DIP
产品培训模块: Data Converter Fundamentals
DAC Architectures
产品变化通告: Product Discontinuance 27/Oct/2011
标准包装: 1
设置时间: 8µs
位数: 12
数据接口: 并联
转换器数目: 4
电压电源: 双 ±
功率耗散(最大): 525mW
工作温度: 0°C ~ 70°C
安装类型: 通孔
封装/外壳: 28-DIP(0.600",15.24mm)
供应商设备封装: 28-PDIP
包装: 管件
输出数目和类型: 4 电压,单极;4 电压,双极
采样率(每秒): 125k
AD664
REV.
–13–
Figure 25a. Simple AD664 to MC6801 Interface
Expansion of the scheme employed in Figure 25a results in that
shown in Figure 25c. Here, two AD664s are connected to an
MC6801, providing a total of eight 12-bit, software program-
mable DACs. Again, the three least significant bits of address
are used to select the on-chip registers of the AD664. IOS and
E, as well as a fourth address bit, are decoded to provide the
appropriate CS signals. Four address and five I/O lines remain
uncommitted.
A slightly more sophisticated approach to system expansion is
illustrated in Figure 25d. Here, a 74LS138 (1-of-8 decoder) is
used to address one of the eight AD664s connected to the
MC6801. The three least significant address bits are used to
select on-chip register and DAC. The next three address bits are
used to select the appropriate AD664. IOS and E gate the
74LS138 output.
Figure 25b. Alternate AD664 to MC6801 Interface
Figure 25c. Interfacing Two AD664s to an MC6801
D
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