MP7529A データシートの表示（PDF） - Exar Corporation
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MP7529A Datasheet PDF : 12 Pages
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FEATURES
• Very Low Total Harmonic Distortion
• Lower Glitch Energy
• Four Quadrant Multiplication
• On-Chip Latches for Both DACs
• +10.8 V to +15.75 V Operation
• Low Power Consumption
• TTL/5V CMOS Compatible
• Latch-Up Free
• Second Source to AD7628
• 5 V Operation: MP7529B
MP7529A
15 V CMOS
Dual Buffered Multiplying 8-Bit
Digital-to-Analog Converter
BENEFITS
• Quiet Operation in Audio Applications
• Easy Interface to Microprocessors
GENERAL DESCRIPTION
The MP7529A is a dual 8-bit Digital-to-Analog Converter
featuring excellent DAC-to-DAC matching, tracking and
specifically optimized for applications requiring low total
harmonic distortion. The MP7529A is manufactured using
advanced thin film resistors on a double metal CMOS process.
The MP7529A incorporates a unique decoding technique
yielding lower glitch energy, higher speed and excellent
accuracy over temperature and time.
Data is transferred to either of the two D/A Converter latches
via a common 8-bit TTL/5 V CMOS compatible input port. The
control input DAC A/DAC B determines which DAC is to be
loaded.
The device is specified for operation from +10.8 V to +15.75 V
power supply, and is TTL-compatible over this range. Power
dissipation is only 20 mW. Both DACs offer excellent four
quadrant multiplication characteristics, and include separate
reference inputs and feedback resistors. An improved latch-up
resistant design eliminates the need for external protective
Schottky diodes in most applications.
SIMPLIFIED BLOCK AND TIMING DIAGRAM
VDD
VREFA
DB7-DB0
DAC A/DAC B
CS
WR
Rev. 2.00
DQ
LATCH A
E
DAC A
DQ
LATCH B
E
DAC B
DGND
VREFB
1
RFBA
IOUTA
DB7-DB0
DAC A/DAC B
CS
RFBB
IOUTB
AGND
WR
OUT
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