AD7398BRUZ

AD7398 is a quad, serial-input, 12bit, voltage output digital-to-analogue converter (DAC). Built with the Analog Devices, Inc. robust CBCMOS process, this monolithic DAC offers the user low cost with ease of use in single or dual-supply systems. The applied external reference, VREF, determines the full-scale output voltage. Valid VREF values include VSS <lt/> VREF <lt/> VDD which results in a wide selection of full-scale outputs. For multiplying applications, ac inputs can be as large as ±5VP. A doubled-buffered serial-data interface offers high-speed, 3-wire, SPI- and microcontroller-compatible inputs using serial data-in (active-low SDI), clock (active-low CLK), and a chip-select (active-low CS). A common level-sensitive, load-DAC strobe (active-low LDAC) input allows simultaneous update of all DAC outputs from previously loaded input registers. Typical applications are automotive output voltage span, portable communications, digitally controlled calibration, PC peripherals.

• Programmable power shutdown, 3-wire, serial SPI®-compatible interface
• Internal power-on reset, four separate rail-to-rail reference inputs
• Double buffered registers for simultaneous multichannel DAC update
• Relative accuracy is ±1.5LSB max (3V to 5V ± 10%, VDD=5V, VSS=0V, VREF=+2.5V, -40°C <lt/> TA <lt/> +125°C)
• Differential nonlinearity is ±1LSB max (monotonic, 3V to 5V ± 10%, VDD=5V, VSS=0V, -40 <lt/> TA <lt/> 125°C)
• Full-scale voltage error is ±2.5mV max (Data=FFFH, 3V to 5V ± 10%, VDD=5V, VSS=0V, -40 <lt/> TA <lt/> 125°C)
• Full-scale tempco is 1.5ppm/°C typ (3V to 5V ± 10%, VDD=5V, VSS=0V, VREF=+2.5V, -40°C <lt/> TA <lt/> +125°C)
• Clock frequency is 11MHz max (3V to 5V ± 10%, VDD=5V, VSS=0V, VREF=+2.5V, -40°C <lt/> TA <lt/> +125°C)
• 16-lead TSSOP package
• Temperature rating range from -40°C to +125°C

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