AD5791ARUZ

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1. DESCRIPTION

The AD5791ARUZ is a single 20-bit, unbuffered voltage-output digital-to-analog converter (DAC) that operates from a bipolar supply of up to 33 V. The AD5791ARUZ accepts a positive reference input in the range 5 V to VDD − 2.5 V and a negative reference input in the range VSS + 2.5 V to 0 V. The AD5791-EP offers a relative accuracy specification of ±1 LSB max, and operation is guaranteed monotonic with a ±1 LSB differential nonlinearity (DNL) maximum specification. The part uses a versatile 3-wire serial interface that operates at clock rates up to 35 MHz and that is compatible with standard serial peripheral interface (SPI), QSPI™, MICROWIRE™, and DSP interface standards. The part incorporates a power-on reset circuit that ensures the DAC output powers up to 0 V in a known output impedance state and remains in this state until a valid write to the device takes place. The part provides an output clamp feature that places the output in a defined load state. The AD5791-EP is available in a compact, 20-lead TSSOP package and operates at the extended automotive temperature range of −55°C to +125°C. 

2. FEATURES

    1. 1 ppm resolution

    2. 1 ppm INL

    3. 7.5 nV/√Hz noise spectral density

    4. 0.19 LSB long-term linearity stability

    5. <0.05 ppm/°C temperature drift

    6. 1 µs settling time

    7. 1.4 nV-sec glitch impulse

    8. 20-lead TSSOP package

    9. Wide power supply range up to ±16.5 V

  10. 35 MHz Schmitt triggered digital interface

  11. 1.8 V compatible digital interface

3. ENHANCED PRODUCT FEATURES

    1. Supports defense and aerospace applications (AQEC standard)

    2. Military temperature range (−55°C to +125°C)

    3. Controlled manufacturing baseline

    4. One assembly/test site

    5. One fabrication site

    6. Product change notification

    7. Qualification data available on request

4. APPLICATIONS

    1. Medical instrumentation

    2. Test and measurement

    3. Industrial control

    4. High end scientific and aerospace instrumentation