LTC2344-16
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LTC2344-16

Quad, 16-Bit, 400ksps/ch Differential SoftSpan ADC with Wide Input Common Mode Range

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Part Details
Part Models 8
1ku List Price Starting From $16.12
Features
  • 400ksps per Channel Throughput
  • Four 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
  • 102dB 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
  • 81mW Power Dissipation (Typical)
  • 32-Lead (5mm × 5mm) QFN Package
Additional Details
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The LTC2344-16 is a 16-bit, low noise 4-channel simulta- neous 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, each channel of this SoftSpan 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. Individual channels may also be disabled to increase throughput on the remaining channels.

The wide input common mode range and 102dB CMRR of the LTC2344-16 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 LTC2344-16 an ideal choice for many applications requiring wide dynamic range.

The LTC2344-16 supports pin-selectable SPI CMOS (1.8V to 5V) and LVDS serial interfaces. Between one and four lanes of data output may be employed in CMOS mode, allowing the user to optimize bus width and throughput.

Applications

  • Programmable Logic Controllers
  • Industrial Process Control
  • Medical Imaging
  • High Speed Data Acquisition
Part Models 8
1ku List Price Starting From $16.12

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC2344CUH-16#PBF
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LTC2344CUH-16#TRPBF
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LTC2344HUH-16#PBF
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LTC2344HUH-16#TRPBF
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LTC2344IUH-16#PBF
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LTC2344IUH-16#TRPBF
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LTC2344MPUH-16#PBF
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LTC2344MPUH-16001!
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Software & Part Ecosystem

Software & Part Ecosystem

 
LinearLab Tools
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A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards.

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Evaluation Kit

Evaluation Kits 1

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DC2520A-B

LTC2344-16 Demo Board | Quad, 16-Bit, 400ksps Differential ±5V Input SoftSpan ADC with Wide Input Common Mode Range (Requires DC590, DC2026, DC890)

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DC2520A-B

LTC2344-16 Demo Board | Quad, 16-Bit, 400ksps Differential ±5V Input SoftSpan ADC with Wide Input Common Mode Range (Requires DC590, DC2026, DC890)

LTC2344-16 Demo Board | Quad, 16-Bit, 400ksps Differential ±5V Input SoftSpan ADC with Wide Input Common Mode Range (Requires DC590, DC2026, DC890)

Product Detail

Demonstration circuit 2520A shows the proper way to drive the LTC2344 ADC. The LTC2344 is a low noise, high speed, simultaneous sampling 16-/18-bit successive approximation register (SAR) ADC. The LTC2344 has a flexible SoftSpan interface that allows conversion-by-conversion control of the input voltage span on a per-channel basis. An internal 2.048V reference and 2× buffer simplify basic operation while an external reference can be used to increase the input range and the SNR of the ADC.

Tools & Simulations

Tools & Simulations 1

Linduino

Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.

Linduino code repository on GitHub and instructions on how to use the code.

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