AD5429YRUZ

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1. DESCRIPTION

The AD5429YRUZ/AD5439/AD54491 are CMOS, 8-, 10-, and 12-bit, dual-channel, current output digital-to-analog converters (DAC), respectively. These devices operate from a 2.5 V to 5.5 V power supply, making them suited to battery-powered and other applications. As a result of being manufactured on a CMOS submicron process, these 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. 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 (SDO) pin allows 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. The AD5429YRUZ/AD5439/AD5449 DACs are available in 16-lead TSSOP packages. The EV-AD5415/49SDZ evaluation board is available for evaluating DAC performance. 

2. FEATURES

    1. 10 MHz multiplying bandwidth

    2. INL of ±0.25 LSB at 8 bits

    3. 16-lead TSSOP package

    4. 2.5 V to 5.5 V supply operation

    5. ±10 V reference input

    6. 50 MHz serial interface

    7. 2.47 MSPS update rate

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

    9. 4-quadrant multiplication  

  10. Power-on reset

  11. 0.5 μA typical current consumption

  12. Guaranteed monotonic

  13. Daisy-chain mode

  14. Readback function 

3. APPLICATIONS

    1. Portable battery-powered applications

    2. Waveform generators

    3. Analog processing

    4. Instrumentation applications

    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