AD5301:  2.5 V to 5.5 V, 120 μA, 2-Wire Interface, Voltage-Output 8-Bit DAC

The AD5301/AD5311/AD5321* are single 8-/10-/12-bit, buffered, voltage-output DACs that operate from a single 2.5 V to 5.5 V supply, consuming 120 μA at 3 V. The on-chip output amplifier allows ...More

For additional information, please see also AD5300 with a 3-Wire Interface.

AD5301:  2.5 V to 5.5 V, 120 μA, 2-Wire Interface, Voltage-Output 8-Bit DAC

Product Description

The AD5301/AD5311/AD5321* are single 8-/10-/12-bit, buffered, voltage-output DACs that operate from a single 2.5 V to 5.5 V supply, consuming 120 μA at 3 V. The on-chip output amplifier allows rail-to-rail output swing with a slew rate of 0.7 V/μs. It uses a 2-wire (I2C-compatible) serial interface that operates at clock rates up to 400 kHz. Multiple devices can share the same bus.

The reference for the DAC is derived from the power supply inputs and thus gives the widest dynamic output range. These parts incorporate a power-on reset circuit, which ensures that the DAC output powers up to 0 V and remains there until a valid write takes place. The parts contain a power-down feature that reduces the current consumption of the device to 50 nA at 3 V and provides software-selectable output loads while in power-down mode.

The low power consumption in normal operation makes these DACs ideally suited to portable battery-operated equipment. The power consumption is 0.75 mW at 5 V and 0.36 mW at 3 V, reducing to 1 μW in all power-down modes.

Applications

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

    • *Protected by U.S. Patent No. 5684481, other patents pending.

    Data Sheet, Rev. B, 3/07

    Features

    AD5301: buffered voltage output 8-bit DAC
    AD5311: buffered voltage output 10-bit DAC
    AD5321: buffered voltage output

    • 12-bit DAC 6-lead SOT-23 and 8-lead MSOP packages
    • Micropower operation: 120 μA @ 3 V
    • 2-wire (I2C®-compatible) serial interface
    • Data readback capability
    • 2.5 V to 5.5 V power supply
    • Guaranteed monotonic by design over all codes
    • Power-down to 50 nA @ 3 V
    • Reference derived from power supply
    • Power-on reset to 0 V
    • On-chip rail-to-rail output buffer amplifier
    • 3 power-down functions

    Diagrams

    AD5301 Diagram
    Functional Block Diagram for AD5301

    Характеристики

    Resolution (Bits) 8bit
    DAC Update Rate 167kSPS
    DAC Settling Time 6µs
    # DAC Outputs 1
    DAC Type Voltage Out
    DAC Input Format I2C/Ser 2-wire,Ser
    Output FSR (Uni Vdd)
    Ref Int/Ext Ext
    Supply Vnom Single(+2.5),Single(+2.7),Single(+3),Single(+3.3),Single(+5)
    Pwr Diss (Max) 1.4mW
    Package SOP,SOT

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    AD9116 - Dual, 12-Bit Low Power Digital-to-Analog Converter

    AD9114 - Dual, 8-Bit Low Power Digital-to-Analog Converter

    Получать уведомление о новинках More
    Part# Res (bits) Update Rate Settling Time # Outputs
    AD7524 8 4MSPS 250ns 1
    AD5424 8 20.4MSPS 30ns 1
    AD5425 8 2.47MSPS 100ns 1
    AD5426 8 2.47MSPS 50ns 1
    AD5450 8 2.7MSPS 100ns 1
    AD5301 8 167KSPS 6µs 1
    AD9708 8 125MSPS 35ns 1