AD7397ARZ

AD7397ARZ is a dual, 10bit voltage output digital-to-analogue converter. It is designed to operate from a single +3V supply. Built using a CBCMOS process, this monolithic DAC offers the user low cost and ease of use in single supply +3V systems. Operation is guaranteed over the supply voltage range of +2.7V to +5.5V, making this device ideal for battery-operated applications. The double-buffered input structure allows the user to load the input registers one at a time, and then a single load strobe tied to both active-low LDA+LDB inputs will simultaneously update both DAC outputs. LDA and LDB can also be independently activated to immediately update their respective DAC registers. An address input (A/B) decodes DACA or DACB when the chip selects CS input is strobed. It is used in applications such as automotive output span voltage, portable communications, digitally controlled calibration, and PC peripherals.

• Relative accuracy is ±1.75LSB maximum at (+5V, ±10%, TA = +25°C)
• Differential nonlinearity is ±1LSB maximum at (+5V, ±10%, VREF IN = +2.5V, -40°C <lt/> TA <lt/> +85°C)
• Full-scale tempco is -45ppm/°C typical at (+5V, ±10%, VREF IN = +2.5V, -40°C <lt/> TA <lt/> +85°C)
• Output slew rate is 0.05V/µs typical at (+5V, ±10%, VREF IN = +2.5V, -40°C <lt/> TA <lt/> +85°C)
• Settling time is 60µs typical at (+5V, ±10%, ±0.1% of full scale)
• DAC glitch is 65nV/s typical at (+5V, ±10%, code 7FFH to 800H to 7FFH)
• Power supply voltage range from 2.7V to 5.5V, shutdown supply current is 0.1µA typical
• Zero-scale error is 9.0mV maximum at (+5V, ±10%, data = 000H, VREF IN = +2.5V)
• Input leakage current is 10µA maximum at (VREF IN = +2.5V, -40°C <lt/> TA <lt/> +85°C)
• Operating temperature range from -40°C to +125°C, 24-lead SOIC package

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