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  2. D/A Converters (DAC)
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  5. Multichannel Voltage Output D/A Converters
  6. AD5686


Overview

Features and Benefits

  • High relative accuracy (INL): ±2 LSB maximum @ 16 bits
  • Tiny package: 3 mm × 3 mm, 16-lead LFCSP
  • Total unadjusted error (TUE): ±0.1% of FSR maximum
  • Offset error: ±1.5 mV maximum
  • Gain error: ±0.1% of FSR maximum
  • High drive capability: 20 mA, 0.5 V from supply rails
  • User selectable gain of 1 or 2 (GAIN pin)
  • Reset to zero scale or midscale (RSTSEL pin)
  • 1.8 V logic compatibility
  • 50 MHz SPI with readback or daisy chain
  • Low glitch: 0.5 nV-sec
  • Low power: 1.8 mW at 3 V
  • 2.7 V to 5.5 V power supply
  • −40°C to +105°C temperature range

Product Details

The AD5686, a member of the nanoDAC+™ family, is a low power, quad, 16-bit buffered voltage output DAC. The device includes a gain select pin giving a full-scale output of 2.5 V (gain = 1) or 5 V (gain = 2). The device operates from a single 2.7 V to 5.5 V supply, is guaranteed monotonic by design, and exhibits less than 0.1% FSR gain error and 1.5 mV offset error performance. The device is available in a 3 mm × 3 mm LFCSP and a TSSOP package.

The AD5686 also incorporates a power-on reset circuit and a RSTSEL pin that ensures that the DAC outputs power up to zero scale or midscale and remain at that level until a valid write takes place. Each part contains a per-channel power-down feature that reduces the current consumption of the device to 4 μA at 3 V while in power-down mode.

The AD5686 employs a versatile SPI interface that operates at clock rates up to 50 MHz, and all devices contain a VLOGIC pin intended for 1.8 V/3 V/5 V logic.

Product Highlights

  1. High Relative Accuracy (INL): ±2 LSB maximum
  2. Excellent DC Performance.
    Total unadjusted error: ±0.1% of FSR maximum
    Offset error: ±1.5 mV maximum
    Gain error: ±0.1% of FSR maximum
  3. Two Package Options: 3 mm × 3 mm, 16-lead LFCSP and 16-lead TSSOP

Applications

  • Digital gain and offset adjustment
  • Programmable attenuators
  • Process control (PLC I/O cards)
  • Industrial automation
  • Data acquisition systems

Product Lifecycle icon-recommended 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)

Software & Systems Requirements

Tools & Simulations

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

LTspice

Models for the following parts are available in LTspice:

AD5686R

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.

Precision DAC Error Budget Tool

IBIS Models

Reference Designs (1)

Product Recommendations

AD5686 Companion Parts

Recommended Digital Isolator

  • For a galvanically isolated interface: ADUM1400.

Recommended Voltage/Current Output Driver

  • For PLC and industrial control applications: AD5750-2.

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
AD5686ACPZ-RL7 Material Declaration Reliability Data 16-Lead LFCSP (3mm x 3mm w/ EP)
AD5686ARUZ Material Declaration Reliability Data 16-Lead TSSOP
AD5686ARUZ-RL7 Material Declaration Reliability Data 16-Lead TSSOP
AD5686BCPZ-RL7 Material Declaration Reliability Data 16-Lead LFCSP (3mm x 3mm w/ EP)
AD5686BRUZ Material Declaration Reliability Data 16-Lead TSSOP
AD5686BRUZ-RL7 Material Declaration Reliability Data 16-Lead TSSOP
Wafer Fabrication Data

PCN-PDN Information

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Sample & Buy


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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.