AD5663BRMZ-1

The AD5663 is a low power, dual, 16-bit buffered voltage-out DAC that operates from a single 2.7 V to 5.5 V supply and is guaranteed monotonic by design. It requires an external reference voltage to set the output range of the DAC. It incorporates a power-on reset circuit that ensures the DAC output powers up to 0V or midscale (AD5663BRMZ-1) and remains there until a valid write takes place. It contains a power-down feature that reduces the current consumption of the device to 480 nA at 5 V and provides software-selectable output loads while in powerdown mode. The low power consumption of this part in normal operation makes it ideally suited to portable, battery-operated equipment. The power consumption is 1.25 mW at 5 V, going down to 2.4 μW in power-down mode. The on-chip precision output amplifier allows rail-to-rail output swing to be achieved. It uses a versatile, 3-wire serial interface that operates at clock rates up to 50 MHz and is compatible with standard SPI, QSPI, MICROWIRE, and DSP interface standards.

Applications

• Process control
• Data acquisition systems
• Portable battery-powered instruments
• Digital gain and offset adjustment
• Programmable voltage and current sources
• Programmable attenuators

Key features

• Low power, dual 16-bit nanoDAC
• Relative accuracy: ±12 LSBs maximum
• Guaranteed monotonic by design
• 10-lead MSOP and 3 mm × 3 mm LFCSP_WD
• 2.7 V to 5.5 V power supply
• Per channel power-down
• Power-on reset to zero scale or midscale
• Hardware LDAC and CLR functions
• Serial interface; up to 50 MHz