AD5443YRMZ-REEL7

8位/ 10位/ 12位，高带宽乘法数模转换器，串行接口 8-/10-/12-Bit High Bandwidth Multiplying DACs with Serial Interface

Product Details

The AD5426/AD5432/AD5443 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 AD5426/AD5432/AD5443 DACs are available in small, 10-lead MSOP packages.

The EVAL-AD5443SDZ/EVAL-AD5446SDZ/EVAL-AD5453SDZ evaluation board is available for evaluating DAC performance. For more information, see the UG-327 evaluation board user guide.

**Applications**

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Portable battery-powered applications

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Waveform generators

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Instrumentation

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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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2.5 V to 5.5 V supply operation

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50 MHz Serial Interface

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10 MHz Multiplying Bandwidth

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2.5 MSPS update rate

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INL of ±1 LSB for 12-bit DAC

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±10 V reference input

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Low glitch energy < 2 nV-s

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

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10-lead MSOP package

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Pin Compatible 8- AD5426 and 10- AD5432 Current Output DACs

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Guaranteed monotonic

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4-quadrant multiplication

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Power-on reset with brownout detection

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Daisy-chain mode

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Readback function

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0.4 μA typical power consumption