AD7249ANZ

AD7249 DACPORT contains a pair of 12bit, voltage output, digital-to-analogue converter with output amplifiers and zener voltage reference on a monolithic CMOS chip. No external trims are required to achieve full specified performance. Interfacing to this is serial, minimizing pin count and allowing a small package size. Standard control signals allow interfacing to most DSP processors and microcontrollers. The data format is natural binary in both unipolar ranges, while either offset binary or twos complement format may be selected in the bipolar range. an active-low CLR function is provided which sets the output to 0V in both unipolar ranges and in the twos complement bipolar range, while with offset binary data format, the output is set to –REFIN. This function is useful as a power-on reset as it allows the outputs to be set to a known voltage level. Typical applications are process control, industrial automation, digital signal processing systems, input/output ports.

• Minimum 3-wire interface to most DSP processors
• Fabricated on linear compatible CMOS(LC²MOS), an advanced, mixed technology process
• Serial interface, low power dissipation
• Relative accuracy is ±1LSB max (VDD=+12V to +15V, VSS=0V or –12V to –15V, TMIN to TMAX)
• Reference temperature coefficient is ±25ppm/°C typ (VDD=+12V to +15V, TMIN to TMAX)
• Input current is 5µA max (VDD=+12V to +15V, VSS=0V or –12V to –15V, TMIN to TMAX)
• Full-scale temperature coefficient is ±5ppm of FSR/°C typ (VDD=+12V to +15V, VSS=0V, TMIN to TMAX)
• 16-lead PDIP package
• Temperature rating range from –40°C to +85°C

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