AD5445YCPZ

ANALOG DEVICES  AD5445YCPZ  芯片, 数模转换器DAC

Product Details

The AD5424/AD5433/AD5445 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 utilize data readback, allowing the user to read the contents of the DAC register via the DB pins. On power-up, the internal register and latches are filled with 0s and the DAC outputs are at zero scale.

As a result of manufacturing with a CMOS submicron process, they offer excellent 4-quadrant multiplication characteristics, with large signal multiplying bandwidths of up to 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 I-to-V precision amplifier.

While these devices are upgrades of the AD5424/AD5433/ AD5445 in multiplying bandwidth performance, they have a latched interface and cannot be used in transparent mode.

The AD5424 is available in a small, 20-lead LFCSP and a small, 16-lead TSSOP, while the AD5433 and AD5445 DACs are available in a small, 20-lead LFCSP and a small, 20-lead TSSOP. The EVAL-AD5445SDZ evaluation board is available for evaluating DAC performance. For more information, see the UG-333 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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2.5 V to 5.5 V supply operation

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Fast parallel interface 17 ns write cycle

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Update rate of 20.4 MSPS

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INL of ±1 LSB for 12-bit DAC

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10 MHz multiplying bandwidth

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±10 V reference input

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Extended temperature range:

–40°C to +125°C

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See data sheet for additional features