AD5643R Dual 14-Bit nanoDAC® with 5 ppm/°C On-Chip Reference

Dual 12-, 14-, and 16-bit DAC. On-chip 1.25 V/2.5 V, 5 ppm/°C reference. Available in 10-lead MSOP and 10-lead, 3 mm × 3 mm LFCSP. Low power; typically consumes 0.6 mW at 3 V and 1.25 mW at 5 V. 4.5 μs maximum settling time for the AD5623R. Applications Process control Data acquisition systems Portable battery-powered instruments Digital gain and offset adjustment Programmable voltage and current sources Programmable attenuators

The AD5623R/AD5643R/AD5663R, members of the nanoDAC® family, are low power, dual 12-, 14-, and 16-bit buffered voltage-out digital-to-analog converters (DAC) that operate from a single 2.7 V to 5.5 V supply and are guaranteed monotonic by design.

The AD5623R/AD5643R/AD5663R have an on-chip reference. The AD5623R-3/AD5643R-3/AD5663R-3 have a 1.25 V, 5 ppm/°C reference, giving a full-scale output of 2.5 V; and the AD5623R-5/ AD5643R-5/AD5663R-5 have a 2.5 V, 5 ppm/°C reference, giving a full-scale output of 5 V. The on-chip reference is off at power-up, allowing the use of an external reference; and all devices can be operated from a single 2.7 V to 5.5 V supply. The internal reference is turned on by writing to the DAC.

The parts incorporate a power-on reset circuit that ensures the DAC output powers up to 0 V and remains there until a valid write 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 AD5623R/AD5643R/AD5663R use a versatile, 3-wire serial interface that operates at clock rates up to 50 MHz, and they are compatible with standard SPI®, QSPI™, MICROWIRE™, and DSP interface standards. The on-chip precision output amplifier enables rail-to-rail output swing to be achieved.

Product Highlights

Features and Benefits
  • Low power, smallest pin-compatible, dual nanoDAC
    AD5663R: 16 bits
    AD5643R: 14 bits
    AD5623R: 12 bits
  • User-selectable external or internal reference
    External reference default
    On-chip 1.25 V/2.5 V, 5 ppm/°C reference
  • 10-lead MSOP and 3 mm ×
    3 mm LFCSP
  • 2.7 V to 5.5 V power supply
  • Guaranteed monotonic by design
  • Power-on reset to zero scale
  • Per channel power-down
  • Serial interface up to 50 MHz
  • Hardware LDAC and CLR functions
Digital to Analog Converters
IBIS Models
Data Sheets
Documentnote
AD5623R/AD5643R/AD5663R: Dual 12-/14-/16-Bit nanoDAC® with 5 ppm/°C On-Chip Reference Datasheet (Rev. G)PDF 960 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD5643RBRMZ-3 Production10 ld MSOPOTH 50-40 to 105C5.874.81Y
AD5643RBRMZ-3REEL7 Production10 ld MSOPREEL 1000-40 to 105C04.81Y
AD5643RBRMZ-5 Production10 ld MSOPOTH 50-40 to 105C5.874.81Y
AD5643RBRMZ-5REEL7 Production10 ld MSOPREEL 1000-40 to 105C04.81Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
EVAL-AD5663RSDZEvaluation Board99Y
EVAL-SDP-CB1ZSDP-B Controller Board99Y
Reference Materials
AD5623R/AD5643R/AD5663R: Dual 12-/14-/16-Bit nanoDAC® with 5 ppm/°C On-Chip Reference Datasheet (Rev. G) ad5623r
AD5623R/AD5643R/AD5663R:双通道、12/14/16位nanoDAC®内置5 ppm/°C片内基准电压源 (Rev. F) ad5623r
AD5663R IBIS Model ad5663
Digital to Analog Converters ICs Solutions Bulletin ad5590