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

LTC6409 - 10GHz GBW, 1.1nV/√Hz Differential Amplifier/ADC Driver
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LTC2270 - 16-Bit, 20Msps Low Noise Dual ADC

Features

  • Two-Channel Simultaneously Sampling ADC
  • 84.1dB SNR (46μVRMS Input Referred Noise)
  • 99dB SFDR
  • ±2.3LSB INL(Max)
  • Low Power: 160mW Total, 80mW per Channel
  • 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
    LTC2180: 16-Bit, 25Msps, 78mW
    LTC2140-14: 14-Bit, 25Msps, 50mW
  • 64-Lead (9mm × 9mm) QFN Package

Typical Application

LTC2270 Typical Application
LTC2270 Typical Application

Description

The LTC®2270 is a two-channel simultaneous sampling 16-bit A/D converter designed for digitizing high frequency, wide dynamic range signals. It is perfect for demanding 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
LTC2270CUP#PBF 9x9 QFN-64 UP C 05-08-1705 Yes
LTC2270CUP#TRPBF 9x9 QFN-64 UP C 05-08-1705 Yes
LTC2270IUP#PBF 9x9 QFN-64 UP I 05-08-1705 Yes
LTC2270IUP#TRPBF 9x9 QFN-64 UP I 05-08-1705 Yes


LTC2270 Package Drawing
LTC2270 Package Drawing
LTC2270 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
LTC2270CUP#PBF 9x9 QFN-64 C $72.86 $51.00 Yes
LTC2270CUP#TRPBF 9x9 QFN-64 C $51.06 Yes
LTC2270IUP#PBF 9x9 QFN-64 I $84.29 $59.00 Yes
LTC2270IUP#TRPBF 9x9 QFN-64 I $59.06 Yes
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* 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
DC1620A-T LTC2270: 16-bit 20Msps Low Noise Dual ADC, DDR LVDS Outputs, 5-140MHz, req DC890, LVDS_XFMR and DC1075 $200.00
DC1975A-A LTC2270: 16-bit 20Msps Low Noise Dual ADC, DDR LVDS Outputs, DC-70MHz, req DC890, LVDS_XFMR and DC1075 $200.00
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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
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Click here to view our complete list of demo boards

Applications

  • Low Power Instrumentation
  • Software Defined Radios
  • Portable Medical Imaging
  • Multi-Channel Data Acquisition

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Design Tools

LinearLabTools

LinearLabTools is a collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards.  An evaluation board for a data converter will typically plug into an accompanying controller board, which is then connected to a host computer running a Linear supplied GUI program such as PScope for Analog-to-Digital converters or LTDACgen for Digital-to-Analog converters. The GUI allows basic performance measurements to be made, but it is not designed to run arbitrary sequences of tests or communicate with other hardware, as is often required by customers when evaluating a part for their own application. LinearLabTools allows customers to control Linear’s data converter demo boards as they would any other piece of test equipment, using their own software.

The LinearLabTools package also contains various application examples, simulations, and educational programs that demonstrate mixed signal concepts.

Click here for more information and to download the software

Technical Support