AD5426YRMZ-REEL

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1. DESCRIPTION

The AD5426YRMZ-REEL/AD5432/AD54431 are CMOS 8-, 10-, and 12-bit current output digital-to-analog converters (DACs), respectively. These devices operate from a 2.5 V to 5.5 V power supply, making them suitable for battery-powered applications and many other applications. These DACs use a double buffered, 3-wire serial interface that is compatible with SPI, QSPI™, MICROWIRE, and most DSP interface standards. In addition, a serial data out pin (SDO) allows for daisy-chaining when multiple packages are used. Data readback allows the user to read the contents of the DAC register via the SDO pin. On power-up, the internal shift register and latches are filled with 0s and the DAC outputs are at zero scale. As a result of manufacturing on a CMOS submicron process, the parts offer excellent 4-quadrant multiplication characteristics with large signal multiplying bandwidths of 10 MHz. The applied external reference input voltage, VREF, determines the full-scale output current. An integrated feedback resistor, RFB, provides temperature tracking and full-scale voltage output when combined with an external current to voltage precision amplifier. The AD5426YRMZ-REEL/AD5432/AD5443 DACs are available in small, 10-lead MSOPs.

2. FEATURES

    1. 2.5 V to 5.5 V supply operation

    2. 50 MHz serial interface

    3. 10 MHz multiplying bandwidth

    4. 2.5 MSPS update rate

    5. INL of ±1 LSB for 12-bit DAC

    6. ±10 V reference input

    7. Low glitch energy < 2 nV-s

    8. Extended temperature range −40°C to +125°C

    9. 10-lead MSOP

  10. Pin-compatible 8-, 10-, and 12-bit current output DACs

  11. Guaranteed monotonic

  12. 4-quadrant multiplication

  13. Power-on reset with brownout detection

  14. Daisy-chain mode

  15. Readback function

  16. 0.4 µA typical power consumption

3. APPLICATIONS

    1. Portable battery-powered applications

    2. Waveform generators

    3. Analog processing

    4. Instrumentation

    5. Programmable amplifiers and attenuators

    6. Digitally controlled calibration

    7. Programmable filters and oscillators

    8. Composite video

    9. Ultrasound

  10. Gain, offset, and voltage trimming