Products > Integrated Circuits (ICs) > LTC2369-18
LTC2369-18 DFN-16MS-16
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LTC2369-18

LTC2369-18 - 18-Bit, 1.6Msps, Pseudo- Differential Unipolar SAR ADC with 96.5dB SNR

Manufacturer :
Analog Devices, Inc
Package/Case :
DFN-16MS-16
Product Categories :
Precision A/D Converters ; Single Channel A/D Converters
Datasheet:
LTC2369-18 PDF
RoHs Status:
Lead free / RoHS Compliant
In-stock:
906

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LTC2369-18 Product Details

The LTC�2369-18 is a low noise, low power, high speed 18-bit successive approximation register (SAR) ADC. Operating from a 2.5V supply, the LTC2369-18 has a 0V to VREF pseudo-differential unipolar input range with VREF ranging from 2.5V to 5.1V. The LTC2369-18 consumes only 18mW and achieves �2.5LSB INL maximum, no missing codes at 18 bits with 96.5dB SNR. The LTC2369-18 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 1.6Msps throughput with no cycle latency makes the LTC2369-18 ideally suited for a wide variety of high speed applications. An internal oscillator sets the conversion time, easing external timing considerations. The LTC2369-18 automatically powers down between conversions, leading to reduced power dissipation that scales with the sampling rate.

DESCRIPTION

The is a low noise, low power, high speed 18-bit successive approximation register (SAR) ADC. Operating from a 2.5V supply, the LTC2369-18 has 0V to VREF pseudo-differential unipolar input range with VREF ranging from to 5.1V. The LTC2369-18 consumes only 18mW and achieves �2.5LSB INL maximum, no missing codes at 18 bits with 96.5dB SNR. The LTC2369-18 has a high speed SPI-compatible serial interface that supports 2.5V, 3.3V and 5V logic while also featuring a daisy-chain mode. The fast 1.6Msps throughput with no cycle latency makes the LTC2369-18 ideally suited for a wide variety of high speed applications. An internal oscillator sets the conversion time, easing external timing considerations. The LTC2369-18 automatically powers down between conversions, leading to reduced power dissipation that scales with the sampling rate.

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 7705765.

1.6Msps Throughput Rate �2.5LSB INL (Max) Guaranteed 18-Bit No Missing Codes Low Power: 1.6ksps 96.5dB SNR (Typ) at fIN 2kHz �120dB THD (Typ) at fIN = 2kHz Guaranteed Operation 125�C 2.5V Supply Pseudo-Differential Unipolar Input Range: 0V to VREF Input Range from 5.1V No Pipeline Delay, No Cycle Latency to 5V I/O Voltages SPI-Compatible Serial I/O with Daisy-Chain Mode Internal Conversion Clock 16-Lead MSOP and � 3mm DFN Packages

APPLICATIONS

Medical Imaging High Speed Data Acquisition Portable or Compact Instrumentation Industrial Process Control Low Power Battery-Operated Instrumentation ATE

Supply Voltage (VDD)...............................................2.8V Supply Voltage (OVDD)................................................6V Reference Input (REF).................................................6V Analog Input Voltage (Note 3) IN+, IN�.........................(GND 0.3V) to (REF + 0.3V) Digital Input Voltage (Note 3).......................... (GND 0.3V) to (OVDD + 0.3V) Digital Output Voltage (Note 3).......................... (GND 0.3V) to (OVDD + 0.3V)

Power Dissipation.............................................. 500mW Operating Temperature Range to 125�C Storage Temperature Range.................. to 150�C

DE PACKAGE w 3mm) PLASTIC DFN TJMAX = 40�C/W EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB

LEAD FREE FINISH LTC2369CDE-18#PBF LTC2369IDE-18#PBF TAPE AND REEL LTC2369CDE-18#TRPBF LTC2369IDE-18#TRPBF PART MARKING* PACKAGE DESCRIPTION 16-Lead Plastic MSOP 16-Lead Plastic MSOP 16-Lead Plastic MSOP � 3mm) Plastic DFN � 3mm) Plastic DFN TEMPERATURE RANGE to 85�C

Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for information on non-standard lead based finish parts. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/

SYMBOL VIN+ VIN � VIN+ � VIN� IIN CIN CMRR PARAMETER Absolute Input Range (IN+) Absolute Input Range (IN�) Input Differential Voltage Range Analog Input Leakage Current Analog Input Capacitance Input Common Mode Rejection Ratio Sample Mode Hold Mode fIN = 800kHz

The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are = 25�C. (Note 4)

The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are = 25�C. (Note 4)

SYMBOL PARAMETER Resolution No Missing Codes Transition Noise INL DNL ZSE FSE Integral Linearity Error Differential Linearity Error Zero-Scale Error Zero-Scale Error Drift Full-Scale Error Full-Scale Error Drift (Note 7)

The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are = 25�C and AIN = �1dBFS. (Notes 4, 8)

CONDITIONS fIN = 2kHz, VREF = 5V fIN = 2kHz, VREF = 5V, (H-Grade) Signal-to-Noise Ratio fIN = 2kHz, VREF = 5V fIN = 2kHz, VREF = 2.5V fIN = 2kHz, VREF = 5V, (H-Grade) fIN = 2kHz, VREF = 2.5V, (H-Grade)

Total Harmonic Distortion Spurious Free Dynamic Range �3dB Input Bandwidth Aperture Delay Aperture Jitter Transient Response


Feature

  • 1.6Msps Throughput Rate
  • ±2.5LSB INL (Max)
  • Guaranteed 18-Bit No Missing Codes
  • Low Power: 18mW at 1.6Msps, 18μW at 1.6ksps
  • 96.5dB SNR (Typ) at fIN = 2kHz
  • –120dB THD (Typ) at fIN = 2kHz
  • Guaranteed Operation to 125°C
  • 2.5V Supply
  • Pseudo-Differential Unipolar Input Range: 0V to 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-Lead MSOP and 4mm × 3mm DFN Packages

Applications

  • Medical Imaging
  • High Speed Data Acquisition
  • Portable or Compact Instrumentation
  • Industrial Process Control
  • Low Power Battery-Operated Instrumentation
  • ATE

LTC2369-18 Pinout
(Picture: Pinout)

LTC2369-18 Block Diagram
(Picture: Diagram)

Technical Parameters

Channels 1 Device Architecture SAR
Resolutionbits 18 Input Type Pseudo-Differential, Single-Ended
Sample Ratemax | SPS 1.6M Data Output Interface Serial SPI
ADC SNR in dBFStyp | dBFS 96.5 Powertyp | W 18m
INL in LSBtyp | LSBs 0.5

LTC2369-18 Documents

  • LTC2369-18 Technical Documentation/Data sheet

LTC2369-18 Related Products

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Analog Devices, Inc

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Analog Devices, Inc. was founded by two MIT graduates, Ray Stata and Matthew Lorber in 1965. The same year, the company released its first product, the model 101 op amp, which was a hockey-puck sized...
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