AD5668 Octal, 16-Bit, SPI Voltage Output denseDAC With 5 PPM/°C On-Chip Reference

Product Highlights Octal, 16-bit DAC. On-chip 1.25 V/2.5 V, 5 ppm/°C reference. Available in 14-lead/16-lead TSSOP. Power-on reset to 0 V or midscale. Power-down capability. When powered down, the DAC typically consumes 200 nA at 3 V and 400 nA at 5 V. Applications Optical transceivers Power Amp control Data acquisition systems Digital gain and offset adjustment

The AD5668 device is a low power, octal, 16-bit, buffered voltage-output DAC. The device operates from a single 2.7 V to 5.5 V supply and is guaranteed monotonic by design.

The AD5668 has an on-chip reference with an internal gain of 2. The AD5668-1 has an 1.25 V 5 ppm/°C reference, giving a full-scale output range of 2.5 V; the AD5668-2, -3 has a 2.5 V 5 ppm/°C reference, giving a full-scale output range of 5 V. The on-board reference is off at power-up, allowing the use of an external reference. The internal reference is enabled via a software write.

The part incorporates a power-on reset circuit that ensures that the DAC output powers up to 0 V (AD5668-1, -2) or midscale (AD5668-3) and remains powered up at this level until a valid write takes place. The part contains a power-down feature that reduces the current consumption of the device to 400 nA at 5 V and provides software-selectable output loads while in power-down mode for any or all DAC channels.

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 updates all DACs to a user-programmable code—zero scale, midscale, or full scale.

The AD5668 utilizes a versatile 3-wire serial interface that operates at clock rates of up to 50 MHz and is compatible with standard SPI®, QSPI™, MICROWIRE™, and DSP interface standards. The on-chip precision output amplifier enables rail-to-rail output swing.

The AD5668-EP supports defense and aerospace applicatons (AQEC)

Product Highlights
  • Octal, 16-bit DAC.
  • On-chip 1.25 V/2.5 V, 5 ppm/°C reference.
  • Available in 14-lead/16-lead TSSOP.
  • Power-on reset to 0 V or midscale.
  • Power-down capability. When powered down, the DAC typically consumes 200 nA at 3 V and 400 nA at 5 V.
Applications
  • Optical transceivers
  • Power Amp control
  • Data acquisition systems
  • Digital gain and offset adjustment
Features and Benefits
  • Low power, smallest-pin-compatible octal DAC
    • AD5668: 16 bits
    • AD5648: 14 bits
    • AD5628: 12 bits
  • AD5668: 16 bits
  • AD5648: 14 bits
  • AD5628: 12 bits
  • 14-lead/16-lead TSSOP, 16-lead LFCSP, and 16-lead WLCSP
  • On-chip 1.25 V/2.5 V, 5 ppm/°C reference
  • Power down to 400 nA at 5 V, 200 nA at 3 V
  • 2.7 V to 5.5 V power supply
  • Guaranteed monotonic by design
  • Power-on reset to zero scale or midscale
  • See data sheet for additional features
  • Download AD5668-EP Data Sheet
  • Military temperature range (−55°C to +125°C)
  • Controlled manufacturing baseline
  • One assembly/test site
  • One fabrication site
  • Enhanced product change notification
  • Qualification data available on request
  • V62/12643
  • Digital to Analog Converters
    IBIS Models
    Reference Designs
    Data Sheets
    Documentnote
    AD5628/AD5648/AD5668: Octal, 12-/14-/16-Bit SPI Voltage Output denseDAC with 5 ppm/°C On-Chip Reference Data Sheet (Rev. I)PDF
    AD5668-EP: Enhanced Product Data Sheet (Rev. A)PDF 465 kB
    User Guides
    Documentnote
    UG-155: Evaluation Board for the AD5668 Octal, 16-Bit, Serial Voltage Output DAC (Rev. A)PDF 451.48 K
    Product Highlight
    Documentnote
    Extending the denseDAC™ Multichannel D/AsPDF 1100 kB
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    AD5668ACPZ-2-RL7 Production16 ld LFCSP 4x4 REEL 1500-40 to 105C010.63Y
    AD5668ACPZ-3-RL7 Production16 ld LFCSP 4x4 REEL 1500-40 to 105C010.63Y
    AD5668ARUZ-2 Production16 ld TSSOPOTH 96-40 to 105C12.510.63Y
    AD5668ARUZ-2REEL7 Production16 ld TSSOPREEL 1000-40 to 105C010.63Y
    AD5668ARUZ-3 Production16 ld TSSOPOTH 96-40 to 105C12.510.63Y
    AD5668ARUZ-3REEL7 Production16 ld TSSOPREEL 1000-40 to 105C010.63Y
    AD5668BCBZ-1-500R7 Contact ADI16 Ball WLCSP(2.605X2.605) OTH 500-40 to 105C012.75Y
    AD5668BCBZ-1-RL7 Production16 Ball WLCSP(2.605X2.605) REEL 3000-40 to 105C010.63Y
    AD5668BCBZ-3-RL7 Production16 Ball WLCSP(2.605X2.605) REEL 3000-40 to 105C010.63Y
    AD5668BCPZ-1-RL7 Production16 ld LFCSP 4x4 REEL 1500-40 to 105C012.75Y
    AD5668BCPZ-1500RL7 Production16 ld LFCSP 4x4 OTH 500-40 to 105C012.75Y
    AD5668BCPZ-2-RL7 Production16 ld LFCSP 4x4 REEL 1500-40 to 105C012.75Y
    AD5668BCPZ-2500RL7 Production16 ld LFCSP 4x4 OTH 500-40 to 105C00Y
    AD5668BRUZ-1 Production16 ld TSSOPOTH 96-40 to 105C1512.75Y
    AD5668BRUZ-1REEL7 Production16 ld TSSOPREEL 1000-40 to 105C012.75Y
    AD5668BRUZ-2 Production16 ld TSSOPOTH 96-40 to 105C1512.75Y
    AD5668BRUZ-2REEL7 Production16 ld TSSOPREEL 1000-40 to 105C012.75Y
    AD5668BRUZ-3 Production16 ld TSSOPOTH 96-40 to 105C1512.75Y
    AD5668BRUZ-3REEL7 Production16 ld TSSOPREEL 1000-40 to 105C012.75Y
    AD5668SRU-EP-1 Production16 ld TSSOPOTH 96-55 to 125C29.3420.96N
    AD5668SRU-EP-1RL7 Production16 ld TSSOPREEL 1000-55 to 125C020.96N
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    EVAL-AD5668SDCZLFCSP Evaluation Board59Y
    EVAL-AD5668SDRZTSSOP Evaluation Board59Y
    EVAL-SDP-CB1ZEvaluation Controller Board99Y
    Reference Materials
    AD5628/AD5648/AD5668: Octal, 12-/14-/16-Bit SPI Voltage Output denseDAC with 5 ppm/°C On-Chip Reference Data Sheet (Rev. I) ad5628
    AD5628/AD5648/AD5668:8通道、12/14/16位SPI电压输出denseDAC,内置5 ppm/°C片内基准电压源 (Rev. G) ad5628
    AD5668-EP: Enhanced Product Data Sheet (Rev. A) ad5668
    AD5668 IBIS Model ad5668
    CN0183 设计和集成文件 adp2300
    CN0182 设计和集成文件 adcmp370
    AD5668参考代码 ad5668
    UG-155: Evaluation Board for the AD5668 Octal, 16-Bit, Serial Voltage Output DAC (Rev. A) ad5668
    Extending the denseDAC™ Multichannel D/As ad5532
    Digital to Analog Converters ICs Solutions Bulletin ad5590
    CN-0183:采用+12 V至±5 V电源的精密、16位双极性输出电压源 adp2300
    CN-0182:单电源、低功耗的可编程窗口检测器 adcmp370