AD5045 Fully Accurate 14-Bit VOUT nanoDAC® SPI Interface 2.7 V to 5.5 V in a TSSOP

Dual channel available in a 14-lead TSSOP package with individual voltage reference pins. 12-/14-/16-bit accurate, ±1 LSB INL. Low glitch on power-up. High speed serial interface with clock speeds up to 50 MHz. Three power-down modes available to the user. Reset to known output voltage (zero scale or midscale). Power-down lockout capability.

The AD5025 / AD5045 / AD5065 are low power, dual 12-/14-/16-bit buffered voltage output nanoDAC® DACs offering relative accuracy specifications of ±1 LSB INL with individual reference pins, and can operate from a single 4.5 V to 5.5 V supply. The AD5025 / AD5045 / AD5065 also offer a differential accuracy specification of ±1 LSB. The parts use a versatile 3-wire, low power Schmitt trigger serial interface that operates at clock rates up to 50 MHz and is compatible with standard SPI®, QSPI™, MICROWIRE™, and DSP interface standards. The reference for the AD5025 / AD5045 / AD5065 are supplied from an external pin and a reference buffer is provided on chip. The AD5025 / AD5045 / AD5065 incorporate a power-on reset circuit that ensures the DAC output powers up zero scale or midscale and remains there until a valid write takes place to the device. The AD5025 / AD5045 / AD5065 contain a power-down feature that reduces the current consumption of the device to typically 400 nA at 5 V and provides software selectable output loads while in power-down mode. The parts are put into power-down mode over the serial interface. Total unadjusted error for the parts is <2.5 mV. The parts exhibit very low glitch on power-up. The outputs of all DACs can be updated simultaneously using the LDAC function, with the added functionality of user-selectable DAC channels to simultaneously update. There is also an asynchronous CLR that clears all DACs to a software-selectable code—0 V, midscale, or full scale. The parts also feature a power-down lockout pin, PDL, which can be used to prevent the DAC from entering power-down under any circumstances over the serial interface.

Product Highlights
  • Dual channel available in a 14-lead TSSOP package with individual voltage reference pins.
  • 12-/14-/16-bit accurate, ±1 LSB INL.
  • Low glitch on power-up.
  • High speed serial interface with clock speeds up to 50 MHz.
  • Three power-down modes available to the user.
  • Reset to known output voltage (zero scale or midscale).
  • Power-down lockout capability.
Applications
  • Process controls
  • Data acquisition systems
  • Portable battery-powered instruments
  • Digital gain and offset adjustment
  • Programmable voltage and current sources
  • Programmable attenuators
Features and Benefits
  • Low power dual 12-/14-/16-bit DAC, ±1 LSB INL
  • Individual voltage reference pins
  • Rail-to-rail operation
  • 4.5 V to 5.5 V power supply
  • Power-on reset to zero scale or midscale
  • Power down to 400 nA at 5 V
  • 3 power-down functions
  • Per channel power-down
  • Low glitch upon power-up
  • Hardware power-down lockout capability
  • Hardware LDAC with software LDAC override function
  • CLR function to programmable code
  • SDO daisy-chaining option
  • 14-lead TSSOP
  • Digital to Analog Converters
    Data Sheets
    Documentnote
    AD5025/AD5045/AD5065: Fully Accurate, 12-/14-/16-Bit, Dual. VOUT nanoDAC SPI Interface, 4.5 V to 5.5 V in a TSSOP Data Sheet (Rev. A)PDF 1.33 M
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    AD5045BRUZ Production14 ld TSSOPOTH 96-40 to 125C8.277.03Y
    AD5045BRUZ-REEL7 Last Time Buy14 ld TSSOPREEL 1000-40 to 125C07.03Y
    Reference Materials
    AD5025/AD5045/AD5065: Fully Accurate, 12-/14-/16-Bit, Dual. VOUT nanoDAC SPI Interface, 4.5 V to 5.5 V in a TSSOP Data Sheet (Rev. A) ad5025
    Digital to Analog Converters ICs Solutions Bulletin ad5590