●Product Details
●The AD5781 is a single 18-bit, unbuffered voltage-output DAC that operates from a bipolar supply of up to 33 V. The AD5781 accepts a positive reference input in the range 5V to VDD – 2.5 V and a negative reference input in the range VSS \+ 2.5 V to 0 V. The AD5781 offers a relative accuracy specification of ±0.5 LSB max, and operation is guaranteed monotonic with a ±0.5 LSB DNL max specification.
●The part uses a versatile 3-wire serial interface that operates at clock rates up to 35 MHz and that is compatible with standard SPI®, QSPI™, MICROWIRE™, and DSP interface standards. The part incorporates a power-on reset circuit that ensures the DAC output powers up to 0 V and 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.
●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 7.5 nV/√Hz Noise.
● 5. Low 0.05 ppm/°C Temperature Drift.
●Applications
● Medical Instrumentation
● Test and Measurement
● Industrial Control
● Scientific and Aerospace Instrumentation
● Data Acquisition Systems
● Digital Gain and Offset Adjustment
● Power Supply Control
●### Features and Benefits
● Single 18-bit DAC, ± 0.5 LSB INL
● 7.5nV/√Hz Noise Spectral Density
● 0.05 LSB Long Term Linearity Stability
● < 0.05-ppm/°C Temperature Drift
● 1μs Settling Time
● 1.4 nV-sec glitch impulse
● Operating temperature range: -40°C to 125°C
● 20-Lead TSSOP Package
● Wide Power Supply range up to ±16.5V
● 35 MHz Schmitt triggered Digital Interface
● 1.8 V compatible digital interface
●AD5781-EP supports defense and aerospace applications (AQEC standard)
● Download the AD5781-EP Data Sheet (pdf)
● Military temperature range (−55°C to +125°C)
● Controlled manufacturing baseline
● One assembly/test site
● One fabrication site
● Enhanced product change notification
● Qualification data available on request
● V62/12661 DSCC Drawing Number
Part 3D Model
