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AD5570:  True Accuracy, 16-Bit ±12 V/±15 V, Serial Input Voltage Output D/A Converter

The AD5570 is a single 16-bit serial input, voltage output DAC that operates from supply voltages of ±11.4 V up to ±16.5 V. Integral linearity (INL) and differential nonlinearity (DNL) are accurate to 1 LSB. During power-up, when the supply voltages are changing, VOUT is clamped to 0 V via a low impedance path.

The AD5570 DAC comes complete with a set of reference buffers. ...More

AD5570:  True Accuracy, 16-Bit ±12 V/±15 V, Serial Input Voltage Output D/A Converter

Product Description

The AD5570 is a single 16-bit serial input, voltage output DAC that operates from supply voltages of ±11.4 V up to ±16.5 V. Integral linearity (INL) and differential nonlinearity (DNL) are accurate to 1 LSB. During power-up, when the supply voltages are changing, VOUT is clamped to 0 V via a low impedance path.

The AD5570 DAC comes complete with a set of reference buffers. The reference buffers allow a single, positive reference to be used. The voltage on REFIN is gained up and inverted internally to give the positive and negative reference for the DAC core. Having the reference buffers on-chip eliminates the need for external components such as inverters, precision amplifiers, and resistors, thereby reducing the overall solution size and cost.

The AD5570 uses a versatile 3-wire interface that is compatible with SPI®, QSPI™, MICROWIRE™, and DSP® interface standards. Data is presented to the part as a 16-bit serial word. Serial data is available on the SDO pin for daisy-chaining purposes. Data readback allows the user to read the contents of the DAC register via the SDO pin.

Features on the AD5570 include LDAC which is used to update the output of the DAC. The device also has a power-down pin (PD), allowing the DAC to be put into a low power state, and a CLR pin that allows the output to be cleared to 0 V.

The AD5570 is available in a 16-lead SSOP.

Product Highlights
1. 1 LSB maximum INL and DNL.
2. Buffered voltage output up to ±14 V.
3. Output controlled during power-up.
4. On-board reference buffers.
5. Wide temperature range of −40°C to +125°C.

Applications

  • Industrial automation
  • Automatic test equipment
  • Process control
  • Data acquisition systems
  • General-purpose instrumentation

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    TECHNICAL DOCUMENTATION

    • Full 16-bit performance
    • 1 LSB max INL and DNL
    • Output voltage range up to ±14 V
    • On-board reference buffers, eliminating the need for a negative reference
    • Temperature ranges of −40°C to +85°C for A/B version/−40°C to +125°C for W/Y version
    • Controlled output during power-on
    • Settling time of 10 µs to 0.003%
    • Clear function to 0 V
    • Asynchronous update of outputs (LDAC pin)
    • Power-on reset
    • Serial data output for daisy chaining
    • Data readback facility
    • Resolution (Bits): 16bit
    • DAC Update Rate: 83kSPS
    • DAC Settling Time: 12µs
    • # DAC Outputs: 1
    • DAC Type: Voltage Out
    • DAC Input Format: SPI
    • Output FSR: (Bip 2Vref)
    • Ref Int/Ext: Ext
    • Supply Vnom: Dual(+12, -12),Dual(+15, -15)
    • Pwr Diss: 150mW
    • Package: SOP

    Functional Block Diagram for AD5570

    OF NOTE ...

    Questions? Contact the DAC Team!

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    This is the acceptable operating range of the device. The various ranges specified are as follows:
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    • Military : -55 to +125 degrees Celsius
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    • Automotive: -40 to +125 degrees Celsius
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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.