AD7247AANZ

AD7247AANZ is a LC²MOS dual 12-bit, voltage output digital-to-analogue converter with output amplifiers and Zener voltage reference on a monolithic CMOS chip. No external user trims are required to achieve full specified performance. It is microprocessor compatible, with high speed data latches and interface logic. The AD7247 accepts 12-bit parallel data which is loaded into the respective DAC latch using the WR (active low) input and a separate Chip Select input for this DAC. A REF OUT/REF IN function is provided which allows either the on-chip 5V reference or an external reference to be used as a reference voltage for the part. It is fabricated in linear compatible CMOS (LC²MOS), an advanced, mixed technology process that combines precision bipolar circuits with low power CMOS logic.

• On chip voltage reference, output amplifier
• Reference buffer amplifiers
• Parallel loading structure
• Resolution is 12bits, relative accuracy is ±1LSB max
• Differential nonlinearity is ±0.9LSB max (guaranteed monotonic)
• Unipolar offset error is ±3LSB max (VSS = 0V or 15V, DAC latch contents)
• Reference output range from 4.97 to 5.03V
• Supply voltage range from 10.8V to 16.5V
• Input capacitance is 16pF max
• 24pin DIP package, operating temperature range from -40°C to 85°C

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