1. Products
  2. A/D Converters (ADC)
  3. Precision A/D Converters
  4. Single Channel A/D Converters
  5. LTC1740


Features and Benefits

  • 6Msps Sample Rate
  • 79dB S/(N + D) and 91dB SFDR at 2.5MHz fIN
  • Single 5V Supply or ±5V Supplies
  • Integral Nonlinearity Error: <1LSB
  • Differential Nonlinearity: < 0.5LSB
  • 80MHz Full-Power Bandwidth Sampling
  • ±2.5V and ±1.25V Bipolar Input Ranges
  • 2.5V Signal Ground Available
  • Out-of-Range Indicator
  • True Differential Inputs with 75dB CMRR
  • Power Dissipation: 245mW
  • 36-Pin SSOP Package (0.209 Inch Width)

Product Details

The LTC1740 is a 6Msps, 14-bit sampling A/D converter that draws only 245mW from either a single 5V or dual ±5V supplies. This easy-to-use device includes a high dynamic range sample-and-hold and a programmable precision reference.

The LTC1740 has a flexible input circuit that allows differential full-scale input ranges of ±2.5V and ±1.25V with the internal reference, or any full-scale input range up to ±2.5V with an external reference. The input common mode voltage is arbitrary, though a 2.5V reference is provided for single supply applications.

DC specifications include 1LSB typical INL, 0.5LSB typical DNL and no missing codes over temperature. Outstanding AC performance includes 79dB S/(N + D) and 91dB SFDR at an input frequency of 2.5MHz.

The unique differential input sample-and-hold can acquire single-ended or differential input signals up to its 80MHz bandwidth. The 75dB common mode rejection allows users to eliminate ground loops and common mode noise by measuring signals differentially from the source. A separate output logic supply allows direct connection to 3V components.


  • Telecommunications
  • Multiplexed Data Acquisition Systems
  • High Speed Data Acquisition
  • Spectral Analysis
  • Imaging 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)

Documentation & Resources

Software & Systems Requirements

Evaluation Software

LinearLab Tools

A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards.


The PScope System is a USB-based product demonstration and data acquisition system for use with high performance ADCs and signal chain receiver family. PScope allows users to evaluate the SNR, SFDR, THD, as well as other key parameters, quickly and easily.

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
LTC1740CG#PBF Material Declaration Reliability Data 36-Lead SSOP
LTC1740CG#TRPBF Material Declaration Reliability Data 36-Lead SSOP
LTC1740IG#PBF Material Declaration Reliability Data 36-Lead SSOP
LTC1740IG#TRPBF Material Declaration Reliability Data 36-Lead SSOP
Wafer Fabrication Data R380 Reliability Data

PCN-PDN Information

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Sample & Buy

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Buy Now Pricing

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List Pricing

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Lead Times

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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.