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四位8位乘法cmos带存储器的D/A转换器DAC8408数据表
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The DAC8408 is a monolithic quad 8-bit multiplying digital-toanalog CMOS converter. Each DAC has its own reference input， feedback resistor， and onboard data latches that feature read/write capability. The readback function serves as memory for those systems requiring self-diagnostics.A common 8-bit TTL/CMOS compatible input port is used to load data into any of the four DAC data-latches. Control lines DS1， DS2， and A/B determine which DAC will accept data. Data loading is similar to that of a RAMs write cycle. Data can be read back onto the same data bus with control line R/W. The DAC8408 is bus compatible with most 8-bit microprocessors， including the 6800， 8080， 8085， and Z80. The DAC8408 operates on a single +5 volt supply and dissipates less than 20 mW. The DAC8408 is manufactured using PMI’s highly stable， thin-film resistors on an advanced oxide-isolated， silicon-gate， CMOS process. PMI’s improved latch-up resistant design eliminates the need for external protective Schottky diodes.
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