AD7628

CMOS双8位缓冲乘法DAC CMOS Dual 8-Bit Buffered Multiplying DAC

Product Details

The is a monolithic dual 8-bit digital/analog converter featuring excellent DAC-to-DAC matching. It is available in small 0.3" wide 20-pin DIPs and in 20-terminal surface mount packages.

Separate on-chip latches are provided for each DAC to allow easy microprocessor interface.

Data is transferred into either of the two DAC data latches via a common 8-bit TTL/CMOS compatible input port. Control input DAC A/DAC B determines which DAC is to be loaded. The AD7628"s load cycle is similar to the write cycle of a random access memory, and the device is bus compatible with most 8-bit microprocessors, including 6502, 6809, 8085, Z80.

The device operates from a +12 V to +15 V power supply and is TTL-compatible over this range. Power dissipation is a low 20 mW.

Both DACs offer excellent four quadrant multiplication characteristics with a separate reference input and feedback resistor for each DAC.

**APPLICATIONS**

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Disk Drives

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Programmable Filters

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X-Y Graphics

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Gain/Attenuation

### Features and Benefits

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On-Chip Latches for both DACs

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+12 V to +15 V Operation

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DACs matched to 1%

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Four Quadrant Multiplication

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TTL/CMOS Compatible from +12 V to +15 V

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Latch Free Protection Schottkys not Required