AD5439YRUZ-REEL7

双8位/ 10位/ 12位，高带宽，乘法DAC，串行接口 Dual 8-/10-/12-Bit, High Bandwidth, Multiplying DACs with Serial Interface

Product Details

The AD5429/AD5439/AD5449 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 AD5429/AD5439/AD5449 DACs are available in 16-lead TSSOP packages. The EV-AD5415/49SDZ evaluation board is available for evaluating DAC performance. For more information, see the UG-297 evaluation board user guide.

**Applications**

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Portable battery-powered applications

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Waveform generators

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Analog processing

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Instrumentation applications

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Programmable amplifiers and attenuators

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Digitally controlled calibration

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Programmable filters and oscillators

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Composite video

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Ultrasound

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Gain, offset, and voltage trimming

### Features and Benefits

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10 MHz Multiplying Bandwidth

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INL of ±0.25 LSB @ 8 bits

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16-lead TSSOP package

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2.5 V to 5.5 V supply operation

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±10 V reference input

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50 MHz serial interface

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2.47 MSPS update rate

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Extended temperature range:

−40°C to +125°C

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4-quadrant multiplication

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Power-on reset

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0.5 μA typical current consumption

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Guaranteed monotonic

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Daisy-chain mode

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Readback function