Add to Signal Chain Designer

AD5781:  True 18-Bit, Voltage Output DAC ±0.5 LSB INL, ±0.5 LSB DNL

Product Details

Product Status:Recommended for New Designs

The AD57811 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

AD5781 Functional Block Diagram

Video: 1 PPM DAC, the Industry's First True 20-Bit DAC

Additional Evaluation Board Information

If you purchase the evaluation board model of this product, you will also need the System Demonstration Platform (SDP). They are used in conjunction as part of a customer evaluation environment.

5 things you don't know about DACs

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

Product Recommendations & Reference Designs

Engineered. Tested. Ready to Integrate.
Learn More

Companion Products

Suggested Companion Products


Recommended Output Amplifier for the AD5781
  • For high precision, wide bandwidth, R-R output swing, we recommend the AD8675.
  • For high voltage, high slew rates and low noise, we recommend the ADA4898-1.
  • For high precision, low noise, small package, we recommend the ADA4004-1.
Recommended External Reference for the AD5781
  • For a precision, ultralow noise, 5V reference, we recommend the ADR445 or the ADR4550.
  • For a dual reference buffer, we recommend the AD8676.
Recommended Power Solutions
  • For selecting voltage regulator products, use ADIsimPower.

Were these recommendations helpful?

SampleSample & Buy

Price, packaging, availability

AD5781 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD5781ARUZ Status: Production 20 ld TSSOP 20 Ind Tube, 75 $20.03 $16.42 Y  Material Info PCN Purchase
AD5781ARUZ-REEL7 Status: Production 20 ld TSSOP 20 Ind Reel, 1000 - $16.42 Y  Material Info PCN Purchase
AD5781BRUZ Status: Production 20 ld TSSOP 20 Ind Tube, 75 $30.45 $24.96 Y  Material Info PCN Purchase Sample
AD5781BRUZ-REEL7 Status: Production 20 ld TSSOP 20 Ind Reel, 1000 - $24.96 Y  Material Info PCN Purchase
AD5781SRU-EP Status: Production 20 ld TSSOP 20 Ind Tube, 75 $91.50 $75.00 N  Material Info PCN Purchase Sample
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

AD5781 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-AD5781SDZ Status: Production Evaluation Board $159.00 Yes -
EVAL-SDP-CB1Z Status: Production Evaluation Controller Board $99.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

Check Inventory & Purchase

View Sales and Distribution Offices

沪ICP备09046653号
content here.
content here.

Review this Product

Close