AD5645R Quad, 14-Bit nanoDAC® with 5 ppm/°C On-Chip Reference, I2C® Interface

The AD5625R/AD5645R/AD5665R and AD5625/AD5665 members of the nanoDAC® family are low power, quad, 12-/ 14-/16-bit, buffered voltage-out DACs with/without an on-chip reference. All devices operate from a single 2.7 V to 5.5 V supply, are guaranteed monotonic by design, and have an I2 C-compatible serial interface.

The AD5625R/AD5645R/AD5665R have an on-chip reference. The LFCSP versions of the AD5625R/AD5645R/AD5665R have a 1.25 V or 2.5 V, 10 ppm/°C reference, giving a full-scale output range of 2.5 V or 5 V; the TSSOP versions of the AD5625R/AD5645R/AD5665R have a 2.5 V, 5 ppm/°C reference, giving a full-scale output range of 5 V. The WLCSP has a 1.25 V reference. The on-chip reference is off at power-up, allowing the use of an external reference. The internal reference is enabled via a software write. The AD5625/AD5665 require an external reference voltage to set the output range of the DAC.

The device incorporates a power-on reset circuit that ensures that the DAC output powers up to 0 V (POR = GND) or midscale (POR = VDD) and remains there until a valid write occurs. The on-chip precision output amplifier enables rail-to-rail output swing.

The AD5625R/AD5645R/AD5665R and AD5625/AD5665 use a 2-wire I2C-compatible serial interface that operates in standard (100 kHz), fast (400 kHz), and high speed (3.4 MHz) modes.

Applications

Features and Benefits
  • Low power, smallest pin-compatible, quad nanoDACs
  • AD5625R/AD5645R/AD5665R
    12-/14-/16-bit nanoDACs
    On-chip, 2.5 V, 5 ppm/°C reference in TSSOP
    On-chip, 2.5 V, 10 ppm/°C reference in LFCSP
    On-chip, 1.25 V, 10 ppm/°C reference in LFCSP
  • AD5625/AD5665
    12-/16-bit nanoDACs
    External reference only
  • 3 mm × 3 mm, 10-lead LFCSP; 14-lead TSSOP; and 1.665 mm × 2.245 mm, 12-ball WLCSP
  • 2.7 V to 5.5 V power supply
  • Guaranteed monotonic by design
  • Power-on reset to zero scale/midscale
  • Per channel power-down
  • Hardware LDAC and CLR functions
  • I2C-compatible serial interface supports standard (100 kHz), fast (400 kHz), and high speed (3.4 MHz) modes
Digital to Analog Converters
Software & Systems Requirements
Data Sheets
Documentnote
AD5625R/AD5645R/AD5665R/AD5625/AD5665: Quad, 12-/14-/16-Bit nanoDACs with 5 ppm/°C On-Chip Reference, I2C Interface Data Sheet (Rev. D)PDF 1609 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD5645RBCPZ-R2 Production10 ld LFCSP (3x3mm)REEL 250-40 to 105C6.996.99Y
AD5645RBCPZ-REEL7 Production10 ld LFCSP (3x3mm)REEL 1500-40 to 105C05.94Y
AD5645RBRUZ Production14 ld TSSOPOTH 96-40 to 105C7.346.24Y
AD5645RBRUZ-REEL7 Production14 ld TSSOPREEL 1000-40 to 105C06.24Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
EVAL-AD5665REBZ1Evaluation Board99Y
EVAL-AD5665REBZ2Evaluation Board99Y
Reference Materials
AD5625R/AD5645R/AD5665R/AD5625/AD5665: Quad, 12-/14-/16-Bit nanoDACs with 5 ppm/°C On-Chip Reference, I2C Interface Data Sheet (Rev. D) ad5625
AD5645/AD5665 Evaluation Software (zip) ad5645r
Digital to Analog Converters ICs Solutions Bulletin ad5590