AD5444YRMZ-REEL7

12位/ 14位，高带宽乘法数模转换器，串行接口 12-/14-Bit High Bandwidth Multiplying DACs with Serial Interface

Product Details

The AD5444/AD54461 are CMOS 12-bit and 14-bit, current output, digital-to-analog converters DACs. Operating from a single 2.5 V to 5.5 V power supply, these devices are suited for battery-powered and other applications.

As a result of the CMOS submicron manufacturing process, these parts offer excellent 4-quadrant multiplication characteristics of up to 12 MHz.

These DACs use a double-buffered, 3-wire serial interface that is compatible with SPI®, QSPI™, MICROWIRE™, and most DSP interface standards. On power-up, the internal shift register and latches are filled with 0s, and the DAC output is at zero scale.

The applied external reference input voltage VREF determines the full-scale output current. These parts can handle ±10 V inputs on the reference, despite operating from a single-supply power supply of 2.5 V to 5.5 V. An integrated feedback resistor RFB provides temperature tracking and full-scale voltage output when combined with an external current-to-voltage precision amplifier. The AD5444/AD5446 DACs are available in small 10-lead MSOP packages, which are pin-compatible with the AD5425/AD5426/AD5432/AD5443 family of DACs.

The EV-AD5443/46/53SDZ 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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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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12 MHz multiplying bandwidth

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INL of ±0.5 LSB at 12 bits

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Pin-compatible 12-/14-bit current output DAC

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2.5 V to 5.5 V supply operation

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10-lead MSOP package

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±10 V reference input

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50 MHz serial interface

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2.7 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 with brownout detection

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0.4 µA typical current consumption

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Guaranteed monotonic