AD5780ACPZ-REEL7

系统就绪， 18位± 1 LSB INL System Ready, 18-Bit ±1 LSB INL

Product Details

The AD5780 1 is a true 18-bit, unbuffered voltage output DAC that operates from a bipolar supply of up to 33 V. The AD5780 accepts a positive reference input range of 5 V to VDD − 2.5 V and a negative reference input range of VSS + 2.5 V to 0 V. Both reference inputs are buffered on chip and external buffers are not required. The AD5780 offers a relative accuracy specifica-tion of ±1 LSB maximum range, and operation is guaranteed monotonic with a ±1 LSB DNL maximum range specification.

The part uses a versatile 3-wire serial interface that operates at clock rates of up to 35 MHz and is compatible with standard SPI, QSPI™, MICROWIRE™, and DSP interface standards. The part incorporates a power-on reset circuit that ensures that the DAC output powers up to 0 V in a known output impedance state and remains in this state until a valid write to the device takes place. The part provides an output clamp feature that places the output in a defined load state.

1Protected by U.S. Patent No. 7,884,747 and 8,089,380.

**Product Highlights**

1. True 18-Bit Accuracy.

2. Wide Power Supply Range of Up to ±16.5 V.

3. −40°C to +125°C Operating Temperature Range.

4. Low 8 nV/√Hz Noise.

5. Low ±0.018 ppm/°C gain error temperature coefficient.

**Applications**

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Medical instrumentation

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Test and measurement

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Industrial control

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Scientific and aerospace instrumentation

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Data acquisition systems

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Digital gain and offset adjustment

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Power supply control

### Features and Benefits

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True 18-bit voltage output DAC, ±1 LSB INL

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8 nV/√Hz output noise spectral density

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0.025 LSB long-term linearity error stability

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±0.018 ppm/°C gain error temperature coefficient

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2.5 μs output voltage settling time

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3.5 nV-sec midscale glitch impulse

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Integrated Precision Reference Buffers

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Operating temperature range:

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−40°C to +125°C

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4 mm x 5 mm LFCSP package

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Wide power supply range of up to ±16.5 V

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35 MHz Schmitt triggered digital interface

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1.8 V compatible digital interface