Data Conversion Analog-to-Digital Converters (ADC) High Speed ADCs (Fs >=10Msps)

LTC2269 - 16-Bit, 20Msps Low Noise ADC

Features

  • 84.1dB SNR (46μVRMS Input Referred Noise)
  • 99dB SFDR
  • ±2.3LSB INL(Maximum)
  • Low Power: 88mW
  • Single 1.8V Supply
  • CMOS, DDR CMOS, or DDR LVDS Outputs
  • Selectable Input Ranges: 1VP-P to 2.1VP-P
  • 200MHz Full Power Bandwidth S/H
  • Shutdown and Nap Modes
  • Serial SPI Port for Configuration
  • Pin Compatible with
       LTC2160:16-Bit, 25Msps, 45mW
  • 48-Lead (7mm × 7mm) QFN Package

Typical Application

LTC2269 Typical Application
LTC2269 Typical Application

Description

The LTC2269 is a sampling 16-bit A/D converter designed for digitizing high frequency, wide dynamic range signals. It is perfect for demanding communications applications with AC performance that includes 84.1dB SNR and 99dB spurious free dynamic range (SFDR).

DC specs include ±1LSB INL (typ), ±0.2LSB DNL (typ) and no missing codes over temperature. The transition noise is 1.44LSBRMS.

The digital outputs can be either full rate CMOS, double data rate CMOS, or double data rate LVDS. A separate output power supply allows the CMOS output swing to range from 1.2V to 1.8V.

The ENC+ and ENC– inputs may be driven differentially or single-ended with a sine wave, PECL, LVDS, TTL, or CMOS inputs. An optional clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles.

Packaging

CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
Drawing		 RoHS
LTC2269CUK#PBF 7x7 QFN-48 UK C 05-08-1704 Yes
LTC2269CUK#TRPBF 7x7 QFN-48 UK C 05-08-1704 Yes
LTC2269IUK#PBF 7x7 QFN-48 UK I 05-08-1704 Yes
LTC2269IUK#TRPBF 7x7 QFN-48 UK I 05-08-1704 Yes


LTC2269 Package Drawing
LTC2269 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
(1-99)		 Price
(1k)*		 RoHS
LTC2269CUK#PBF 7x7 QFN-48 C $42.86 $30.00 Yes
LTC2269CUK#TRPBF 7x7 QFN-48 C $30.06 Yes
LTC2269IUK#PBF 7x7 QFN-48 I $51.43 $36.00 Yes
LTC2269IUK#TRPBF 7x7 QFN-48 I $36.06 Yes
Buy Now • Request Samples
* 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 Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC1762A-H LTC2269: 16-bit 20Msps Low Noise ADC, LVDS Outputs, 5-140MHz, req DC890, LVDS_XFMR and DC1075 $200.00
Buy Now

Companion Boards

Part Number Description Price Documentation
DC1075A Clock Divider board $50.00
DC890B USB Data Acquisition Controller, for PScope Evaluation Kits (up to 250Mbps, CMOS/LVDS) $300.00
Buy Now
Click here to view our complete list of demo boards

Applications

  • Low Power Instrumentation
  • Software Defined Radios
  • Portable Medical Imaging
  • Multichannel Data Acquisition

People Who Viewed This Product Also Viewed

Product Notifications

Please login to your MyLinear account for notifications of datasheet updates, new document releases and LTspice model announcements for your favorite products. If you do not have a MyLinear account you may Sign Up Now.

Forgot your password? Click here.
Need help? Email mylinear@linear.com with questions and comments.

Design Tools

Linear Technology provides a variety of custom design simulation tools and device models to allow even novice designers to quickly and easily evaluate circuits using high performance switching regulators, amplifiers, data converters, filters and more. Please visit our Design Tools page to view and download:

  • LTspice - A powerful SPICE simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators
  • LTpowerCAD - A complete power supply selection, synthesis and design tool
  • LTpowerPlay - A development environment supporting Linear Technology's Digital Power System Management (PSM) products
  • PScope & QuikEval - USB-based product demonstration and data acquisition system for use with our ADCs, DACs, and more
  • Linduino - Arduino compatible system for developing and distributing firmware libraries and example code
  • LinearLab Tools - A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards
  • And More!

Technical Support