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AD5624R:  Quad,12-Bit nanoDAC® with 5ppm/°C On-Chip Reference

The AD5624R/AD5644R/AD5664R, members of the nanoDAC® family, are low power, quad, 12-/14-/16-bit buffered voltage-out DACs. All devices operate from a single 2.7 V to 5.5 V supply and are guaranteed monotonic by design.

The AD5624R/AD5644R/AD5664R have an on-chip reference. The AD56x4R-3 has a 1.25 V, 5 ppm/°C reference, giving a full-scale output range of 2.5 V; the AD56x4R-5 has ...More

AD5624R:  Quad,12-Bit nanoDAC® with 5ppm/°C On-Chip Reference

Product Description

The AD5624R/AD5644R/AD5664R, members of the nanoDAC® family, are low power, quad, 12-/14-/16-bit buffered voltage-out DACs. All devices operate from a single 2.7 V to 5.5 V supply and are guaranteed monotonic by design.

The AD5624R/AD5644R/AD5664R have an on-chip reference. The AD56x4R-3 has a 1.25 V, 5 ppm/°C reference, giving a full-scale output range of 2.5 V; the AD56x4R-5 has a 2.5 V, 5 ppm/°C reference giving a full-scale output range of 5 V. The on-chip reference is off at power-up, allowing the use of an external refer-ence; all devices can be operated from a single 2.7 V to 5.5 V supply. The internal reference is enabled via a software write.

The part incorporates 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 per-channel 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 AD5624R/AD5644R/AD5664R use 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 interface standards. The on-chip precision output amplifier enables rail-to-rail output swing.

Product Highlights

  1. Quad 12-/14-/16-bit DACs.
  2. On-chip 1.25 V/2.5 V, 5 ppm/°C reference.
  3. Available in 10-lead MSOP and 10-lead, 3 mm × 3 mm, LFCSP_WD.
  4. Low power, typically consumes 1.32 mW at 3 V and 2.25 mW at 5 V.

Applications

  • Process controls
  • Data acquisition systems
  • Portable battery-powered instruments
  • Digital gain and offset adjustment
  • Programmable voltage and current sources
  • Programmable attenuators

    • Data Sheet, Rev. B, 4/08

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    • Low power, smallest pin-compatible, quad nanoDACs
      AD5664R: 16 bits
      AD5644R: 14 bits
      AD5624R: 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_WD
    • 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
    • Resolution (Bits): 12bit
    • DAC Update Rate: 287kSPS
    • DAC Settling Time: 3µs
    • # DAC Outputs: 4
    • DAC Type: Voltage Out
    • DAC Input Format: Ser,SPI
    • Output FSR: (Uni 2.5V),(Uni 2Vref),(Uni 5V)
    • Ref Int/Ext: Int/Ext
    • Supply Vnom: Single(+2.7 to +5.5)
    • Pwr Diss: 6.6mW
    • Package: CSP,SOP

    Functional Block Diagram for AD5624R

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    *The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
    **Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.