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AD5337:  2.5 V to 5.5 V, 250 µA, 2-Wire Interface, Dual Voltage Output, 8-Bit DACs

The AD5337/AD5338/AD5339 are dual 8-, 10-, and 12-bit buffered voltage output DACs, respectively. Each part is housed in an 8-lead MSOP package and operates from a single 2.5 V to 5.5 V supply, consuming 250 μA at 3 V. On-chip output amplifiers allow rail-to-rail output swing with a slew rate of 0.7 V/μs. A 2-wire serial interface operates at clock rates up to 400 kHz. This interface is SMBus ...More

AD5337:  2.5 V to 5.5 V, 250 µA, 2-Wire Interface, Dual Voltage Output, 8-Bit DACs

Product Description

The AD5337/AD5338/AD5339 are dual 8-, 10-, and 12-bit buffered voltage output DACs, respectively. Each part is housed in an 8-lead MSOP package and operates from a single 2.5 V to 5.5 V supply, consuming 250 μA at 3 V. On-chip output amplifiers allow rail-to-rail output swing with a slew rate of 0.7 V/μs. A 2-wire serial interface operates at clock rates up to 400 kHz. This interface is SMBus compatible at VDD < 3.6 V. Multiple devices can be placed on the same bus.

The references for the two DACs are derived from one reference pin. The outputs of all DACs can be updated simultaneously using the software LDAC function. The parts incorporate a power-on reset circuit to ensure that the DAC outputs power up to 0 V and remain there until a valid write to the device takes place. A software clear function resets all input and DAC registers to 0 V. A power-down feature reduces the current consumption of the devices to 200 nA @ 5 V (80 nA @ 3 V).

The low power consumption of these parts in normal operation makes them ideally suited to portable battery-operated equipment. The power consumption is typically 1.5 mW at 5 V and 0.75 mW at 3 V, reducing to 1 μW in power-down mode.

Applications

  • Portable battery-powered instruments
  • Digital gain and offset adjustment
  • Programmable voltage and current sources
  • Programmable attenuators
  • Industrial process control

    • RESOURCES & TOOLS

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    • AD5337
      2 buffered 8-bit DACs in 8-lead MSOP
    • AD5338, AD5338-1
      2 buffered 10-bit DACs in 8-lead MSOP
    • AD5339
      2 buffered 12-bit DACs in 8-lead MSOP
    • Low power operation: 250 μA @ 3 V, 300 μA @ 5 V
    • 2-wire (I2C-compatible) serial interface
    • 2.5 V to 5.5 V power supply
    • Guaranteed monotonic by design over all codes
    • Power-down to 80 nA @ 3 V, 200 nA @ 5 V
    • 3 power-down modes
    • Double-buffered input logic
    • Output range: 0 V to VREF
    • Power-on reset to 0 V
    • Resolution (Bits): 8bit
    • DAC Update Rate: 14.8kSPS
    • DAC Settling Time: 6µs
    • # DAC Outputs: 2
    • DAC Type: Voltage Out
    • DAC Input Format: I2C/Ser 2-wire
    • Output FSR: (Uni Vref)
    • Ref Int/Ext: Ext
    • Supply Vnom: Single(+2.7),Single(+3),Single(+3.3),Single(+5)
    • Pwr Diss: 1.9mW
    • Package: SOP

    Functional Block Diagram for AD5337

    OF NOTE ...

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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.