LTC2338-18
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LTC2338-18

18-Bit, 1Msps, ±10.24V True Bipolar, Fully Differential Input ADC with 100dB SNR

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Part Details
Part Models 6
1ku List Price Starting From $34.33
Features
  • 1Msps Throughput Rate
  • ±4LSB INL (Max)
  • Guaranteed 18-Bit No Missing Codes
  • Fully Differential Inputs
  • True Bipolar Input Ranges ±6.25V, ±10.24V, ±12.5V
  • 100dB SNR (Typ) at fIN = 2kHz
  • –115dB THD (Typ) at fIN = 2kHz
  • Guaranteed Operation to 125°C
  • Single 5V Supply
  • Low Drift (20ppm/°C Max) 2.048V Internal Reference
  • On-board Single-Shot Capable Reference Buffer
  • No Pipeline Delay, No Cycle Latency
  • 1.8V to 5V I/O Voltages
  • SPI-Compatible Serial I/O with Daisy-Chain Mode
  • Internal Conversion Clock
  • Power Dissipation 50mW (Typ)
  • 16-Lead MSOP Package
Additional Details
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The LTC2338-18 is a low noise, high speed 18-bit successive approximation register (SAR) ADC with fully differential inputs. Operating from a single 5V supply, the LTC2338-18 has a ±10.24V true bipolar input range, making it ideal for high voltage applications which require a wide dynamic range. The LTC2338-18 achieves ±4LSB INL maximum, no missing codes at 18-bits with 100dB SNR.

The LTC2338-18 has an on-board single-shot capable reference buffer and low drift (20ppm/°C max) 2.048V temperature compensated reference. The LTC2338-18 also has a high speed SPI-compatible serial interface that supports 1.8V, 2.5V, 3.3V and 5V logic while also featuring a daisy-chain mode. The fast 1Msps throughput with no cycle latency makes the LTC2338-18 ideally suited for a wide variety of high speed applications. An internal oscillator sets the conversion time, easing external timing considerations. The LTC2338-18 dissipates only 50mW 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 LTC2338-18 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 $34.33

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Documentation

Documentation

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Product Lifecycle

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Feb 4, 2020

- 20_0132

Laser Top Mark for 16-Lead MSOP Packages Assembled in ADPG and UTAC

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- 20_0132

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Laser Top Mark for 16-Lead MSOP Packages Assembled in ADPG and UTAC

LTC2338CMS-18#PBF

PRODUCTION

LTC2338CMS-18#TRPBF

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LTC2338HMS-18#PBF

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Software & Part Ecosystem

Software & Part Ecosystem

 
LinearLab Tools
Info:False

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

 
DC1908A CPLD Source Code
Info:False
 
PScope
Info:False

The PScope System is a USB-based product demonstration and data acquisition system for use with high performance ADCs and signal chain receiver family. PScope allows users to evaluate the SNR, SFDR, THD, as well as other key parameters, quickly and easily.

 
QuikEval
Info:False

The QuikEval system is a USB-based product demonstration and data acquisition system that allows users to quickly evaluate the performance of products. The system consists of a USB Data Acquisition Controller board (DC590B) that connects to individual daughter cards for specific products.

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Evaluation Kit

Evaluation Kits 1

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DC1908A-A

LTC2338-18 Demo Board | 18-Bit, 1Msps, Fully Differential SAR ADC with True Bipolar +/-10V Inputs. Req DC590 or DC718

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DC1908A-A

LTC2338-18 Demo Board | 18-Bit, 1Msps, Fully Differential SAR ADC with True Bipolar +/-10V Inputs. Req DC590 or DC718

LTC2338-18 Demo Board | 18-Bit, 1Msps, Fully Differential SAR ADC with True Bipolar +/-10V Inputs. Req DC590 or DC718

Product Detail

The LTC2338/LTC2337/LTC2336/LTC2328/LTC2327/ LTC2326 are true bipolar, low power, low noise ADCs with serial outputs that can operate from a single 5V supply. The demo manual refers to the LTC2338-18 but applies to all parts in the family, the only difference being the maximum sample rates and the number of bits. The LTC2338-18 supports a ±20.48V fully differential input range with a 100dB SNR, consumes only 50mW and achieves ±4LSB INL max with no missing codes at 18 bits. The DC1908A demonstrates the DC and AC performance of the LTC2338‑18 in conjunction with the DC590 QuikEval and DC718 PScope data collection boards.

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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