LTC2379-18
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LTC2379-18

18-Bit, 1.6Msps, Low Power SAR ADC with 101.2dB SNR

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Part Details
Part Models 10
1ku List Price Starting From $35.32
Features
  • 1.6Msps Throughput Rate
  • ±2LSB INL (Max)
  • Guaranteed 18-Bit No Missing Codes
  • Low Power: 18mW at 1.6Msps, 18μW at 1.6ksps
  • 101.2dB SNR (typ) at fIN = 2kHz
  • –120dB THD (typ) at fIN = 2kHz
  • Digital Gain Compression (DGC)
  • Guaranteed Operation to 125°C
  • 2.5V Supply
  • Fully Differential Input Range ±VREF
  • VREF Input Range from 2.5V to 5.1V
  • No Pipeline Delay, No Cycle Latency
  • 1.8V to 5V I/O Voltages
  • SPI-Compatible Serial I/O with Daisychain Mode
  • Internal Conversion Clock
  • 16-pin MSOP and 4mm × 3mm DFN Packages
Additional Details
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The LTC2379-18 is a low noise, low power, high speed 18-bit successive approximation register (SAR) ADC. Operating from a 2.5V supply, the LTC2379-18 has a ±VREF fully differential input range with VREF ranging from 2.5V to 5.1V. The LTC2379-18 consumes only 18mW and achieves ±2LSB INL maximum, no missing codes at 18‑bits with 101.2dB SNR.

The LTC2379-18 has a high speed SPI-compatible serial interface that supports 1.8V, 2.5V, 3.3V and 5V logic while also featuring a daisychain mode. The fast 1.6Msps throughput with no cycle latency makes the LTC2379-18 ideally suited for a wide variety of high speed applications. An internal oscillator sets the conversion time, easing external timing considerations. The LTC2379-18 automatically powers down between conversions, leading to reduced power dissipation that scales with the sampling rate.

The LTC2379-18 features a unique digital gain compression (DGC) function, which eliminates the driver amplifier’s negative supply while preserving the full resolution of the ADC. When enabled, the ADC performs a digital scaling function that maps zero-scale code from 0V to 0.1 • VREF and full-scale code from VREF to 0.9 • VREF. For a typical reference voltage of 5V, the full-scale input range is now 0.5V to 4.5V, which provides adequate headroom for powering the driving amplifier from a single 5.5V supply.

Applications

  • Medical Imaging
  • High Speed Data Acquisition
  • Portable or Compact Instrumentation
  • Industrial Process Control
  • Low Power Battery-Operated Instrumentation
  • ATE
Part Models 10
1ku List Price Starting From $35.32

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Documentation

Documentation

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Jun 5, 2024

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Feb 4, 2020

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Epoxy Change from Henkel 8290 to 8290A for MSOP (3)

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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.

 
DC1783A_REVA FPGA/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.

Can't find the software or driver you need?

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Evaluation Kit

Evaluation Kits 3

reference details image

DC1783A-E

LTC2379-18 with LTC6655-5/LT6350 Demo Board | 18-Bit, 1.6Msps, SAR ADC with 101dB SNR. Requires DC718 or DC2026

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DC1783A-E

LTC2379-18 with LTC6655-5/LT6350 Demo Board | 18-Bit, 1.6Msps, SAR ADC with 101dB SNR. Requires DC718 or DC2026

LTC2379-18 with LTC6655-5/LT6350 Demo Board | 18-Bit, 1.6Msps, SAR ADC with 101dB SNR. Requires DC718 or DC2026

Product Detail

The LTC2380/LTC2379/LTC2378/LTC2377/LTC2376 are low power, low noise ADCs with serial outputs that can operate from a single 2.5V supply. The demo manual refers to the LTC2379-18 but applies to all parts in the family, the only difference being the maximum sample rates and the number of bits. The LTC2379-18 supports a ±5V fully differential input range with a 101dB SNR, consumes only 18mW and achieves ±2LSB INL max with no missing codes at 18-bits. The DC1783A demonstrates the DC and AC performance of the LTC2379-18 in conjunction with the DC590 QuikEval and DC718 PScope data collection boards.

reference details image

DC1805A-E

LTC6362 with 1.6Msps 18-bit LTC2379-18 Demo Board | SAR ADC, LTC6655-5. Requires DC718 or DC2026

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DC1805A-E

LTC6362 with 1.6Msps 18-bit LTC2379-18 Demo Board | SAR ADC, LTC6655-5. Requires DC718 or DC2026

LTC6362 with 1.6Msps 18-bit LTC2379-18 Demo Board | SAR ADC, LTC6655-5. Requires DC718 or DC2026

Product Detail

The LTC6362 is a low power, low noise differential op amp with rail-to-rail input and output swing that has been optimized to drive low power SAR ADCs. The amplifier may be configured to buffer a fully differential input signal or convert a single-ended input signal to a differential output signal.

reference details image

DC1858A

Low Noise, Low Distortion Sine Wave Generator for LTC2379/LTC2369 SAR ADC Family, FOUT=2kHz

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DC1858A

Low Noise, Low Distortion Sine Wave Generator for LTC2379/LTC2369 SAR ADC Family, FOUT=2kHz

Low Noise, Low Distortion Sine Wave Generator for LTC2379/LTC2369 SAR ADC Family, FOUT=2kHz

Product Detail

DC1858A Demo Board for:
LTC2379-18 18-Bit, 1.6Msps, Low Power SAR ADC with 101dB SNR
LTC2369-18 18-Bit, 1.6Msps, Pseudo- Differential Unipolar SAR ADC with 96.5dB SNR.


 


Tools & Simulations

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