LTC2323-16 - Dual, 16-Bit, 5Msps Differential Input ADC with Wide Input Common Mode Range


  • 5Msps Throughput Rate
  • ±4LSB INL (Typ)
  • Guaranteed 16-Bit, No Missing Codes
  • 8VP-P Differential Inputs with Wide Input Common Mode Range
  • 81dB SNR (Typ) at fIN = 2MHz
  • –85dB THD (Typ) at fIN = 2MHz
  • Guaranteed Operation to 125°C
  • Single 3.3V or 5V Supply
  • Low Drift (20ppm/°C Max) 2.048V or 4.096V Internal Reference
  • 1.8V to 2.5V I/O Voltages
  • CMOS or LVDS SPI-Compatible Serial I/O
  • Power Dissipation 40mW/Ch (Typ)
  • Small 28-Lead (4mm × 5mm) QFN Package

Typical Application

LTC2323-16 Typical Application
LTC2323-16 Typical Application


The LTC®2323-16 is a low noise, high speed dual 16- bit successive approximation register (SAR) ADC with differential inputs and wide input common mode range. Operating from a single 3.3V or 5V supply, the LTC2323-16 has an 8VP-P differential input range, making it ideal for applications which require a wide dynamic range with high common mode rejection. The LTC2323-16 achieves ±4LSB INL typical, no missing codes at 16 bits and 81dB SNR.

The LTC2323-16 has an onboard low drift (20ppm/°C max) 2.048V or 4.096V temperature-compensated reference. The LTC2323-16 also has a high speed SPI-compatible serial interface that supports CMOS or LVDS. The fast 5Msps per channel throughput with one-cycle latency makes the LTC2323-16 ideally suited for a wide variety of high speed applications. The LTC2323-16 dissipates only 40mW per channel and offers nap and sleep modes to reduce the power consumption to 5μW for further power savings during inactive periods.

LTC2323-12 12
LTC2323-14 14
LTC2323-16 16


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
LTC2323CUFD-16#PBF 4x5 QFN-28 UFD C 05-08-1712 Yes
LTC2323CUFD-16#TRPBF 4x5 QFN-28 UFD C 05-08-1712 Yes
LTC2323HUFD-16#PBF 4x5 QFN-28 UFD H 05-08-1712 Yes
LTC2323HUFD-16#TRPBF 4x5 QFN-28 UFD H 05-08-1712 Yes
LTC2323IUFD-16#PBF 4x5 QFN-28 UFD I 05-08-1712 Yes
LTC2323IUFD-16#TRPBF 4x5 QFN-28 UFD I 05-08-1712 Yes

LTC2323-16 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
LTC2323CUFD-16#PBF 4x5 QFN-28 C $19.93 $13.95 Yes
LTC2323CUFD-16#TRPBF 4x5 QFN-28 C $19.99 $14.01 Yes
LTC2323HUFD-16#PBF 4x5 QFN-28 H $23.57 $16.50 Yes
LTC2323HUFD-16#TRPBF 4x5 QFN-28 H $23.63 $16.56 Yes
LTC2323IUFD-16#PBF 4x5 QFN-28 I $21.36 $14.95 Yes
LTC2323IUFD-16#TRPBF 4x5 QFN-28 I $21.42 $15.01 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
DC1996A-A LTC2323-16 Demo Board | Dual, 16-Bit, 5Msps True Differential Input Serial SAR ADC (Req. DC890) $50.00
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Companion Boards

Part Number Description Price Documentation
DC2511A HSMC Adapter for DC890-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


  • High Speed Data Acquisition Systems
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Design Tools


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

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