AD5044:  Fully Accurate 14-Bit VOUT nanoDAC™ SPI Interface 4.5 V to 5.5 V in a TSSOP

The AD5024/AD5044/AD5064 are low power, quad 12-/14-/ 16-bit buffered voltage output nanoDAC® DACs that offer relative accuracy specifications of 1 LSB INL with individual reference pins and can ...More

AD5044:  Fully Accurate 14-Bit VOUT nanoDAC™ SPI Interface 4.5 V to 5.5 V in a TSSOP

Product Description

The AD5024/AD5044/AD5064 are low power, quad 12-/14-/ 16-bit buffered voltage output nanoDAC® DACs that offer 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 AD5024/AD5044/AD5064 parts 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. A reference buffer is also provided on-chip. The AD5024/AD5044/AD5064 incor-porate a power-on reset circuit that ensures the DAC output powers up to zero scale or midscale and remains there until a valid write takes place to the device. The AD5024/AD5044/ AD5064 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. Total unadjusted error for the parts is <2 mV.

Product Highlights

  1. Quad channel available in16-lead TSSOP package.
  2. 16 bit accurate, 1 LSB INL.
  3. Low glitch on power-up.
  4. High speed serial interface with clock speeds up to 50 MHz.
  5. Reset to known output voltage (zero scale or midscale).

Applications

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

    • Data Sheet, Rev. 0, 8/08

    Features

    • Low power quad 12-/14-/16-bit DAC, ±1 LSB INL
    • Individual and common voltage reference pin options
    • Rail-to-rail operation
    • 4.5 V to 5.5 V power supply
    • Power-on reset to zero scale or midscale
    • 3 power-down functions
    • Per channel power down
    • See Data Sheet for Additional Information

    Diagrams

    AD5044 Diagram
    Functional Block Diagram for AD5044

    技术指标

    Resolution (Bits) 14bit
    DAC Update Rate 125kSPS
    DAC Settling Time 8µs
    # DAC Outputs 4
    DAC Type Voltage Out
    DAC Input Format Ser,SPI
    Output FSR (Uni Vdd)
    Ref Int/Ext Ext
    Supply Vnom Single(+5)
    Pwr Diss (Max) 30mW
    Package SOP

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    订阅新产品资料 More
    Part# Res (bits) Update Rate Settling Time # Outputs
    AD5044 14 125KSPS 8µs 4
    AD5644R 14 250KSPS 3.5µs 4
    AD5554 14 500KSPS 2µs 4
    AD5024 12 125KSPS 8µs 4
    AD7398 12 167KSPS 6µs 4
    AD5064 16 125KSPS 8µs 4
    AD5664 16 223KSPS 4µs 4