LTC2380-16

PRODUCTION

16-Bit, 2Msps, Low Power SAR ADC with 96.2dB SNR

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Overview

  • 2Msps Throughput Rate
  • ±0.6LSB INL (Max)
  • Guaranteed 16-Bit No Missing Codes
  • Low Power: 19mW at 2Msps, 19μW at 2ksps
  • 96.2dB SNR (typ) at fIN = 2kHz
  • –117dB 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 Daisy-Chain Mode
  • Internal Conversion Clock
  • 16-Pin MSOP and 4mm × 3mm DFN Packages

The LTC2380-16 is a low noise, low power, high speed 16-bit successive approximation register (SAR) ADC. Operating from a 2.5V supply, the LTC2380-16 has a ±VREF fully differential input range with VREF ranging from 2.5V to 5.1V. The LTC2380-16 consumes only 19mW and achieves ±0.6LSB INL maximum, no missing codes at 16-bits with 96.2dB SNR.

The LTC2380-16 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 2Msps throughput with no cycle latency makes the LTC2380-16 ideally suited for a wide variety of high speed applications. An internal oscillator sets the conversion time, easing external timing considerations. The LTC2380-16 automatically powers down between conversions, leading to reduced power dissipation that scales with the sampling rate.

The LTC2380-16 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

LTC2380-16
16-Bit, 2Msps, Low Power SAR ADC with 96.2dB SNR
32k Point FFT fS = 2Msps, fIN = 2kHz Product Package 1 Product Package 2
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Documentation

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Software Resources

Evaluation Software 4

PScope

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.

LinearLab Tools

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


Hardware Ecosystem

Parts Product Life Cycle Description
Analog to Digital Converters (ADCs) 1
LTC2379-18 PRODUCTION 18-Bit, 1.6Msps, Low Power SAR ADC with 101.2dB SNR
Differential Amplifiers 2
LT6350 RECOMMENDED FOR NEW DESIGNS Low Noise Single-Ended to Differential Converter/ADC Driver
LTC6362 LAST TIME BUY Precision, Low Power Rail-to-Rail Input/Output Differential Op Amp/SAR ADC Driver
Interface Transceivers & Isolators 1
LTM2893 PRODUCTION 100MHz Isolated ADC Serial Interface
Voltage References 1
LTC6655 PRODUCTION 0.25ppm Noise, Low Drift Precision References
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Tools & Simulations

Precision ADC Driver Tool

The Precision ADC Driver Tool is a web application that simulates the performance of precision ADC and driver combinations. Potential issues with driver selection, kickback settling, and distortion are flagged, and design tradeoffs can be quickly evaluated. Simulations and calculations include system noise, distortion, and settling of the ADC input

Open Tool

Linduino 4

IBIS Model 1

Signal Chain Designer

Signal Chain Designer is a web-based tool designed to create and simulate complex precision signal chains. See your circuit’s performance before you commit to your PCB: transfer function, noise, power consumption, input range, and DC error. Quickly experiment with different parts and architectures. Signal chains can be exported to LTspice for further analysis.

Open Tool

Evaluation Kits

eval board
DC1805A-A

LTC6362 with 2Msps 16-bit LTC2380-16 Demo Board | SAR ADC, LTC6655-5. Requires DC718 or DC2026

Product Details

DC1805A-A Demo Board for:
LTC2380-16 16-Bit, 2Msps, Low Power SAR ADC with 96dB SNR
LTC6362 Precision, Low Power Rail-to-Rail Input/Output Differential Op Amp/SAR ADC Driver
LTC6655 0.25ppm Noise, Low Drift Precision References

eval board
DC1783A-A

LTC2380-16 with LTC6655-5/LT6350 Demo Board | 16-Bit, 2Msps, SAR ADC with 96dB SNR. Requires DC718 or DC2026A

Product Details

DC1783A-A Demo Board for:
LTC2380-16 16-Bit, 2Msps, Low Power SAR ADC with 96dB SNR
LTC6655 0.25ppm Noise, Low Drift Precision References
LT6350 Low Noise Single-Ended to Differential Converter/ADC Driver


 


DC1805A-A
LTC6362 with 2Msps 16-bit LTC2380-16 Demo Board | SAR ADC, LTC6655-5. Requires DC718 or DC2026
DC1805A-A - Schematic
DC1783A-A
LTC2380-16 with LTC6655-5/LT6350 Demo Board | 16-Bit, 2Msps, SAR ADC with 96dB SNR. Requires DC718 or DC2026A
DC1783A-A Demo Board DC1783A-A Demo Board DC1783A-A Demo Board DC1783A-A Demo Board DC1783A-E - Schematic

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