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

LTC1741 - 12-Bit, 65Msps Low Noise ADC

Features

  • Sample Rate: 65Msps
  • 72dB SNR and 85dB SFDR (3.2V Range)
  • 70.5dB SNR and 87dB SFDR (2V Range)
  • No Missing Codes
  • Single 5V Supply
  • Power Dissipation: 1.275W
  • Selectable Input Ranges: ±1V or ±1.6V
  • 240MHz Full Power Bandwidth S/H
  • Pin Compatible Family
    25Msps: LTC1746 (14-Bit), LTC1745(12-Bit)
    50Msps: LTC1744 (14-Bit), LTC1743(12-Bit)
    65Msps: LTC1742 (14-Bit), LTC1741(12-Bit)
    80Msps: LTC1748 (14-Bit), LTC1747(12-Bit)
  • 48-Pin TSSOP Package

Typical Application

LTC1741 Typical Application

Description

The LTC1741 is an 65Msps, sampling 12-bit A/D converter designed for digitizing high frequency, wide dynamic range signals. Pin selectable input ranges of ±1V and ±1.6V along with a resistor programmable mode allow the LTC1741’s input range to be optimized for a wide variety of applications.

The LTC1741 is perfect for demanding communications applications with AC performance that includes 72dB SNR and 85dB spurious free dynamic range. Ultralow jitter of 0.15psRMS allows undersampling of IF frequencies of up to 70MHz with excellent noise performance. DC specs include ±1 LSB INL and ±0.8LSB DNL over temperature.

The digital interface is compatible with 5V, 3V, 2V and LVDS logic systems. The ENC and ENC inputs may be driven differentially from PECL, GTL and other low swing logic families or from single-ended TTL or CMOS. The low noise, high gain ENC and ENC inputs may also be driven by a sinusoidal signal without degrading performance. A separate output power supply can be operated from 0.5V to 5V, making it easy to connect directly to any low voltage DSPs or FIFOs.

The TSSOP package with a flow-through pinout simplifies the board layout.

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
LTC1741CFW#PBF TSSOP-48 FW C 05-08-1651 Yes
LTC1741CFW#TRPBF TSSOP-48 FW C 05-08-1651 Yes
LTC1741IFW#PBF TSSOP-48 FW I 05-08-1651 Yes
LTC1741IFW#TRPBF TSSOP-48 FW I 05-08-1651 Yes


LTC1741 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
LTC1741CFW#PBF TSSOP-48 C $16.70 $12.75 Yes
LTC1741CFW#TRPBF TSSOP-48 C $12.85 Yes
LTC1741IFW#PBF TSSOP-48 I $19.60 $15.00 Yes
LTC1741IFW#TRPBF TSSOP-48 I $15.10 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
DC520B-I LTC1741CFW | 12-Bit / 65 Msps Low Noise ADC, Ain < 40MHz (requires DC718 controller) $100.00
DC520B-J LTC1741CFW | 12-Bit / 65 Msps Low Noise ADC, Ain > 40MHz (requires DC718 controller) $100.00
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Companion Boards

Part Number Description Price Documentation
DC718C USB Data Acquisition Controller, for PScope Evaluation Kits (<135Mbps) $300.00
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Click here to view our complete list of demo boards

Applications

  • Telecommunications
  • Receivers
  • Cellular Base Stations
  • Spectrum Analysis
  • Imaging Systems

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