AD7244JRZ

AD7244 is a fast, complete, 14bit voltage output D/A converter. It consists of a 14bit DAC, 3V buried Zener reference, DAC output amplifiers and high speed serial interface logic. Interfacing to both DACs is serial, minimizing pin count and allowing a small package size. Standard control signals allow interfacing to most DSP processors and microcontrollers. Asynchronous control of DAC updating for both DACs is made possible with a separate LDAC input for each DAC. It operates from ±5V power supplies, providing an analogue output range of ±3V. A REF OUT/REF IN function allows the DACs to be driven from the on-chip 3V reference or from an external reference source. This is fabricated in Linear Compatible CMOS (LC2 MOS), an advanced mixed technology process that combines precision bipolar circuits with low power CMOS logic.

• Resolution is 14bits (VDD = +5V ± 5% VSS = -5V ± 5%)
• On-chip voltage reference, high speed serial interface
• Negative full-scale change is 4μs (max, typically 2.5μs, VDD = +5V ± 5% VSS = -5V ± 5%)
• Operates from 5V supplies, typ low power is 130mW
• Integral nonlinearity is ±2LSB (max, VDD = +5V ± 5% VSS = -5V ± 5%)
• Bipolar zero error is ±10LSB (max, VDD = +5V ± 5% VSS = -5V ± 5%)
• REF OUT tempco is 35ppm/°C (typ, VDD = +5V ± 5% VSS = -5V ± 5%)
• Reference load change (ΔREF OUT vs. ΔI) is -1mV (max, reference load current change (0-500μA)
• Output voltage range is ±3V (nom, VDD = +5V ± 5% VSS = -5V ± 5%)
• 28 lead SOIC-W package, operating temperature range from -40°C to +85°C

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