LTC2341-16 - Dual, 16-Bit, 666ksps/ch Differential SoftSpan ADC with Wide Input Common Mode Range

Features

  • 666ksps per Channel Throughput
  • Two Simultaneous Sampling Channels
  • ±1.25LSB INL (Maximum)
  • Guaranteed 16-Bit, No Missing Codes
  • Differential, Wide Common Mode Range Inputs
  • Per-Channel SoftSpan Input Ranges:
    ±4.096V, 0V to 4.096V, ±2.048V, 0V to 2.048V
    ±5V, 0V to 5V, ±2.5V, 0V to 2.5V
  • 93.4dB Single-Conversion SNR (Typical)
  • −114dB THD (Typical) at fIN = 2kHz
  • 105dB CMRR (Typical) at fIN = 200Hz
  • Rail-to-Rail Input Overdrive Tolerance
  • Guaranteed Operation to 125°C
  • Integrated Reference and Buffer (4.096V)
  • SPI CMOS (1.8V to 5V) and LVDS Serial I/O
  • Internal Conversion Clock, No Cycle Latency
  • 74mW Power Dissipation (Typical)
  • 32-Lead (5mm × 5mm) QFN Package

Typical Application

LTC2341-16 Typical Application
LTC2341-16 Typical Application

Description

The LTC®2341-16 is a 16-bit, low noise 2-channel simultaneous sampling successive approximation register (SAR) ADC with differential, wide common mode range inputs. Operating from a 5V supply and using the internal reference and buffer, both channels of this SoftSpanTM ADC can be independently configured on a conversion-by-conversion basis to accept ±4.096V, 0V to 4.096V, ±2.048V, or 0V to 2.048V signals. One channel may also be disabled to increase throughput on the other channel.

The wide input common mode range and 105dB CMRR of the LTC2341-16 analog inputs allow the ADC to directly digitize a variety of signals, simplifying signal chain design. This input signal flexibility, combined with ±1.25LSB INL, no missing codes at 16 bits, and 93.4dB SNR, makes the LTC2341-16 an ideal choice for many applications requiring wide dynamic range.

The LTC2341-16 supports pin-selectable SPI CMOS (1.8V to 5V) and LVDS serial interfaces. Either one or two lanes of data output may be employed in CMOS mode, allowing the user to optimize bus width and throughput.

Packaging

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

Part Number Package Code Temp Package
Drawing
RoHS
LTC2341CUH-16#PBF 5x5 QFN-32 UH C 05-08-1693 Yes
LTC2341CUH-16#TRPBF 5x5 QFN-32 UH C 05-08-1693 Yes
LTC2341HUH-16#PBF 5x5 QFN-32 UH H 05-08-1693 Yes
LTC2341HUH-16#TRPBF 5x5 QFN-32 UH H 05-08-1693 Yes
LTC2341IUH-16#PBF 5x5 QFN-32 UH I 05-08-1693 Yes
LTC2341IUH-16#TRPBF 5x5 QFN-32 UH I 05-08-1693 Yes


LTC2341-16 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
LTC2341CUH-16#PBF 5x5 QFN-32 C $14.29 $10.00 Yes
LTC2341CUH-16#TRPBF 5x5 QFN-32 C $14.35 $10.06 Yes
LTC2341HUH-16#PBF 5x5 QFN-32 H $18.93 $13.25 Yes
LTC2341HUH-16#TRPBF 5x5 QFN-32 H $18.99 $13.31 Yes
LTC2341IUH-16#PBF 5x5 QFN-32 I $16.43 $11.50 Yes
LTC2341IUH-16#TRPBF 5x5 QFN-32 I $16.49 $11.56 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
DC2581A-B LTC2341-16 Demo Board | Dual, 16-Bit, 666ksps Differential ±5V Input SoftSpan ADC with Wide Input Common Mode Range (req. DC590, DC2026, DC890) $150.00
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Companion Boards

Part Number Description Price Documentation
DC2026C Linduino One Isolated USB Demo Board: An Arduino- and QuikEval-Compatible Code Development Platform $75.00
DC590B Isolated USB Serial Controller for Linear Technology QuikEval-Compatible Demo Boards $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

  • Programmable Logic Controllers
  • Industrial Process Control
  • Medical Imaging
  • High Speed Data Acquisition

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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