AD7391ARZ

AD7391 is a digital-to-analogue converter 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 consuming less than 100µA making this device ideal for battery operated applications. The full-scale voltage output is determined by the external reference input voltage applied. The rail-to-rail REFIN to DACOUT allows for a full-scale voltage set equal to the positive supply VDD or any value in between. A doubled-buffered serial-data interface offers high-speed, 3-wire, SPI and microcontroller compatible inputs using data in (SDI), clock (CLK) and load strobe (active-low LD) pins. Additionally, an active-low CLR input sets the output to zero scale at power on or upon user demand. Typical applications are automotive 0.5V to 4.5V output span voltage, portable communications, digitally controlled calibration.

• SPI and QSPI serial interface compatible with schmitt trigger inputs
• 10bit resolution
• Relative accuracy is ±1.75LSB max (TA=25°C, VREF IN=2.5V, –40°C <lt/> TA <lt/> +85°C, 3V ± 10%)
• Full-scale error is ±32mV max (TA=25°C, 85°C, 125°C, VREF IN=2.5V, –40°C <lt/> TA <lt/> +85°C, 3V ± 10%)
• Full-Scale Tempco is 16ppm/°C typ (VREF IN=2.5V, –40°C <lt/> TA <lt/> +85°C, 3V ± 10%)
• Output current (source) is 1mA typ (data=800H, ∆VOUT=5LSB, –40°C <lt/> TA <lt/> +85°C, 3V ± 10%)
• Output slew rate is 0.05V/µs typ (data=000H to 3FFH to 000H, VREF IN=2.5V, –40<lt/> TA <lt/>85°C, 3V ± 10%)
• 8-lead SOIC package
• Temperature rating range from -40°C to 125°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party