LTC1864

PRODUCTION

µPower, 16-Bit, 250ksps 1- and 2-Channel ADCs in SOIC

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Overview

  • 16-Bit 250ksps ADCs in MSOP Package
  • Single 5V Supply
  • Low Supply Current: 850µA (Typ)
  • Auto Shutdown Reduces Supply Current to 2µA at 1ksps
  • True Differential Inputs
  • 1-Channel (LTC1864) or 2-Channel (LTC1865) Versions
  • SPI/MICROWIRE Compatible Serial I/O
  • 16-Bit Upgrade to 12-Bit LTC1286/LTC1298
  • Pin Compatible with 12-Bit LTC1860/LTC1861
  • Guaranteed Operation to +125°C (MSOP Package)

The LTC1864/LTC1865 are 16-bit A/D converters that are offered in MSOP and SO-8 packages and operate on a single 5V supply. At 250ksps, the supply current is only 850µA. The supply current drops at lower speeds because the LTC1864/LTC1865 automatically power down between conversions. These 16-bit switched capacitor successive approximation ADCs include sample-and-holds. The LTC1864 has a differential analog input with an adjustable reference pin. The LTC1865 offers a software-selectable 2-channel MUX and an adjustable reference pin on the MSOP version.

The 3-wire, serial I/O, small MSOP or SO-8 package and extremely high sample rate-to-power ratio make these ADCs ideal choices for compact, low power, high speed systems.

These ADCs can be used in ratiometric applications or with external references. The high impedance analog inputs and the ability to operate with reduced spans down to 1V full scale, allow direct connection to signal sources in many applications, eliminating the need for external gain stages.

Applications

  • High Speed Data Acquisition
  • Portable or Compact Instrumentation
  • Low Power Battery-Operated Instrumentation
  • Isolated and/or Remote Data Acquisition

LTC1864
µPower, 16-Bit, 250ksps 1- and 2-Channel ADCs in SOIC
Single 5V Supply, 250ksps, 16-Bit Sampling ADC Supply Current vs Sampling Frequency Product Package 1 Product Package 2 Product Package 3 Product Package 4
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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 1

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.


Hardware Ecosystem

Parts Product Life Cycle Description
Analog to Digital Converters (ADCs) 3
LTC2381-16 PRODUCTION 16-Bit, 250ksps, Low Power SAR ADC with Serial Interface
LTC2376-16 PRODUCTION 16-Bit, 250ksps, Low Power SAR ADC with 97dB SNR
LTC2364-16 PRODUCTION 16-Bit, 250ksps, Pseudo-Differential Unipolar SAR ADC with 94.7dB SNR
Interface Transceivers & Isolators 1
LTM2883 PRODUCTION SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power
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Tools & Simulations


Evaluation Kits

eval board
DC416A

LTC1864CMS8 | 16-Bit, 250ksps, 5.0V ADC with Serial Interface and Differential Input in MS-8 Package (Requires DC718 controller)

Product Details

DC416A: Demo Board for the LTC1864 µPower, 16-Bit, 250ksps 1- and 2-Channel ADCs in SOIC


 


DC416A
LTC1864CMS8 | 16-Bit, 250ksps, 5.0V ADC with Serial Interface and Differential Input in MS-8 Package (Requires DC718 controller)
DC416A - Schematic

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