Overview
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
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 maximum 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
- True 18-Bit Accuracy.
- Wide Power Supply Range of Up to ±16.5 V.
- −40°C to +125°C Operating Temperature Range.
- Low 7.5 nV/√Hz Noise.
- 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
Product Categories
Markets and Technologies
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
-
UG-1555: EVAL-AD5781SDZ User Guide (Rev. 0)6/5/2020
-
AD5781/AD5791 Quick Start Guide4/24/2013WIKI
-
UG-184: Evaluation Board for a 18-Bit Serial Input, Voltage Output DAC9/15/2010
Software & Systems Requirements
Tools & Simulations
Precision DAC Error Budget Tool
The Precision DAC Error Budget Tool is a web application that calculates the DC Accuracy of precision DAC signal chains. It shows how the static errors accumulate throughout your signal chain to quickly evaluate the design tradeoffs. Calculations include the DC errors introduced by Voltage References, Operation Amplifiers and Precision DACs.
Reference Designs (1)
Product Recommendations
AD5781 Companion Parts
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| AD5781ARUZ | Material Declaration | Reliability Data | 20-Lead TSSOP | |
| AD5781ARUZ-REEL7 | Material Declaration | Reliability Data | 20-Lead TSSOP | |
| AD5781BRUZ | Material Declaration | Reliability Data | 20-Lead TSSOP | |
| AD5781BRUZ-REEL7 | Material Declaration | Reliability Data | 20-Lead TSSOP | |
| AD5781SRUZ-EP | Material Declaration | Reliability Data | 20-Lead TSSOP | |
| Wafer Fabrication Data |
PCN-PDN Information
Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.
Support & Discussions
AD5781 Discussions
RE: DAC DNL Issue
7 week(s) ago in Precision DACs
RE: EVAL-AD5791SDZ controlled with SDP-B Controller Board
24 week(s) ago in Precision DACs
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku 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. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
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Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
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.