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  2. D/A Converters (DAC)
  3. Precision D/A Converters
  4. Voltage Output D/A Converters
  5. Single-Channel Voltage Output D/A Converters
  6. LTC1669


Features and Benefits

  • Micropower 10-Bit DAC in SOT-23
  • Low Operating Current: 60µA
  • Ultralow Power Shutdown Mode: 12µA
  • 2-Wire Serial Interface Compatible with I2C™
  • Selectable Internal Reference or Ratiometric to VCC
  • Maximum DNL Error: 0.75LSB
  • 8 User Selectable Addresses (MSOP Package)
  • Single 2.7V to 5.5V Operation
  • Buffered True Rail-to-Rail Voltage Output
  • Power-On Reset
  • 1.5V VIL and 2.1V VIH for SDA and SCL
  • Small 5-Lead SOT-23 and 8-Lead MSOP Packages

Product Details

The LTC1669 is a 10-bit voltage output DAC with true buffered rail-to-rail output voltage capability. It operates from a single supply with a range of 2.7V to 5.5V. The reference for the DAC is selectable between the supply voltage or an internal bandgap reference. Selecting the internal bandgap reference will set the full-scale output voltage range to 2.5V. Selecting the supply as the reference sets the output voltage range to the supply voltage.

The part features a simple 2-wire serial interface compatible with I2C that allows communication between many devices. The internal data registers are double buffered to allow for simultaneous update of several devices at once. The DAC can be put in low current power-down mode for use in power conscious systems.

Power-on reset ensures the DAC output is at 0V when power is initially applied, and all internal registers are cleared. The LTC1669 is pin-for-pin compatible with the LTC1663.

For SMBus-compatible designs, please refer to the LTC1663.


  • Digital Calibration
  • Offset/Gain Adjustment
  • Industrial Process Control
  • Automatic Test Equipment
  • Arbitrary Function Generators
  • Battery-Powered Data Conversion Products

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.

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.

Precision DAC Error Budget Tool

Product Recommendations

LTC1669 Companion Parts

Recommended µModule Isolator

Recommended Related 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
LTC1669-1CS5#TRMPBF Material Declaration Reliability Data 5-Lead TSOT-23
LTC1669-1CS5#TRPBF Material Declaration Reliability Data 5-Lead TSOT-23
LTC1669-8CMS8#PBF Material Declaration Reliability Data 8-Lead MSOP
LTC1669-8CMS8#TRPBF Material Declaration Reliability Data 8-Lead MSOP
LTC1669-8IMS8#PBF Material Declaration Reliability Data 8-Lead MSOP
LTC1669-8IMS8#TRPBF Material Declaration Reliability Data 8-Lead MSOP
LTC1669CMS8#PBF Material Declaration Reliability Data 8-Lead MSOP
LTC1669CMS8#TRPBF Material Declaration Reliability Data 8-Lead MSOP
LTC1669CS5#TRMPBF Material Declaration Reliability Data 5-Lead TSOT-23
LTC1669CS5#TRPBF Material Declaration Reliability Data 5-Lead TSOT-23
LTC1669IMS8#PBF Material Declaration Reliability Data 8-Lead MSOP
LTC1669IMS8#TRPBF Material Declaration Reliability Data 8-Lead MSOP
Wafer Fabrication Data R380 Reliability Data

PCN-PDN Information

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Sample & Buy

Ordering FAQs

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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.



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