LTC2373-18
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LTC2373-18

18-Bit, 1Msps, 8-Channel SAR ADC with 100dB SNR

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Part Details
Part Models 6
1ku List Price Starting From $20.49
Features
  • 1Msps Throughput Rate
  • 18-Bit Resolution with No Missing Codes
  • 8-Channel Multiplexer with Selectable Input Range
    • Fully Differential (±4.096V)
    • Pseudo-Differential Unipolar (0V to 4.096V)
    • Pseudo-Differential Bipolar (±2.048V)
  • INL: ±2.75LSB (Maximum)
  • SNR: 100dB (Fully Differential)/95dB (Pseudo-
    Differential) (Typical) at fIN = 1kHz
  • THD: –110dB (Typical) at fIN = 1kHz
  • Programmable Sequencer
  • Selectable Digital Gain Compression
  • Single 5V Supply with 1.8V to 5V I/O Voltages
  • SPI-Compatible Serial I/O
  • Onboard 2.048V Reference and Reference Buffer
  • No Pipeline Delay, No Cycle Latency
  • Power Dissipation 40mW (Typical)
  • Guaranteed Operation to 125°C
  • 32-Lead 5mm × 5mm QFN Package
Additional Details
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The LTC2373-18 is a low noise, high speed, 8-channel 18-bit successive approximation register (SAR) ADC. Operating from a single 5V supply, the LTC2373-18 has a highly configurable, low crosstalk 8-channel input multiplexer, supporting fully differential, pseudo-differential unipolar and pseudo-differential bipolar analog input ranges. The LTC2373-18 achieves ±2.75LSB INL (maximum) in all input ranges, no missing codes at 18-bits and 100dB (fully differential)/ 95dB (pseudo-differential) SNR (typical).

The LTC2373-18 has an onboard low drift (20ppm/°C max) 2.048V temperature-compensated reference and a singleshot capable reference buffer. The LTC2373-18 also has a high speed SPI-compatible serial interface that supports 1.8V, 2.5V, 3.3V and 5V logic through which a sequencer with a depth of 16 may be programmed. An internal oscillator sets the conversion time, easing external timing considerations. The LTC2373-18 dissipates only 40mW and automatically naps between conversions, leading to reduced power dissipation that scales with the sampling rate. A sleep mode is also provided to reduce the power consumption of the LTC2373-18 to 300μW for further power savings during inactive periods.

Applications

  • Programmable Logic Controllers
  • Industrial Process Control
  • High Speed Data Acquisition
  • Portable or Compact Instrumentation
  • ATE
Part Models 6
1ku List Price Starting From $20.49

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Documentation

Documentation

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Feb 20, 2022

- 21_0269

Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products

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Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products

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Software and Part Ecosystem

Software and 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.

 

DC2071A CPLD Source Code

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Evaluation Kit

Evaluation Kits 1

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DC2071A-A

LTC2373-18 Demo Board | 18-Bit, 1Msps, 8-Channel SAR ADC with 100dB SNR (Requires DC590, DC2026 or DC890)

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DC2071A-A

LTC2373-18 Demo Board | 18-Bit, 1Msps, 8-Channel SAR ADC with 100dB SNR (Requires DC590, DC2026 or DC890)

LTC2373-18 Demo Board | 18-Bit, 1Msps, 8-Channel SAR ADC with 100dB SNR (Requires DC590, DC2026 or DC890)

Product Detail

Demonstration circuit 2071A features the LTC2373 family. The LTC2374/LTC2373/LTC2372 are low noise, high speed, 8-channel, 16/18-bit successive approximation register (SAR) ADCs. The demo manual refers to the LTC2373-18 but applies to all parts in the family, the only differences being the number of bits and the maximum sample rate. Operating from a single 5V supply, the LTC2373-18 has a highly configurable, low crosstalk, 8-channel input multiplexer, supporting fully differential, pseudo-differential unipolar and pseudo-differential bipolar analog input ranges.

Tools & Simulations

Tools & Simulations 2

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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