The AD5663, a member of th nanoDAC® family, 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.
The AD5663BCPZ-R2 requires an external reference voltage to set the output range of the DAC. The part incorporates a power-on reset circuit that ensures the DAC output powers up to 0 V or midscale (AD5663BRMZ-1) and remains there until a validwrite takes place. The part 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 power-down 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 of the AD5663BCPZ-R2 allows rail-to-rail output swing to be achieved.
The AD5663BCPZ-R2 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 interfacestandards.
Product Highlights
Feature
- 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
Applications
- Process control
- Data acquisition systems
- Portable battery-powered instruments
- Digital gain and offset adjustment
- Programmable voltage and current sources
- Programmable attenuators
(Picture: Pinout)
