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LTC2402 - 1-/2-Channel 24-Bit µPower No Latency Delta-Sigma ADC in MSOP-10

Features

  • 24-Bit ADCs in Tiny MSOP-10 Packages
  • 4ppm INL, No Missing Codes
  • 4ppm Full-Scale Error
  • 0.5ppm Offset
  • 0.6ppm Noise
  • Single Conversion Settling Time for Multiplexed Applications
  • 1- or 2-Channel Inputs
  • Automatic Channel Selection (Ping-Pong) (LTC2402)
  • Zero Scale and Full Scale Set for Reference and Ground Sensing
  • Internal Oscillator—No External Components Required
  • 110dB Min, 50Hz/60Hz Notch Filter
  • Reference Input Voltage: 0.1V to VCC
  • Live Zero—Extended Input Range Accommodates12.5% Overrange and Underrange
  • Single Supply 2.7V to 5.5V Operation
  • Low Supply Current (200µA) and Auto Shutdown

Typical Application

LTC2402
LTC2402
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Description

The LTC®2401/LTC2402 are 1- and 2-channel 2.7V to 5.5V micropower 24-bit analog-to-digital converters with an integrated oscillator, 4ppm INL and 0.6ppm RMS noise. These ultrasmall devices use delta-sigma technology and a new digital filter architecture that settles in a single cycle. This eliminates the latency found in conventional Delta Sigma converters and simplifies multiplexed applications. Through a single pin, the LTC2401/LTC2402 can be configured for better than 110dB rejection at 50Hz or 60Hz ±2%, or can be driven by an external oscillator for a user defined rejection frequency in the range 1Hz to 120Hz. The internal oscillator requires no external frequency setting components. These converters accept an external reference voltage from 0.1V to VCC. With an extended input conversion range of –12.5% VREF to 112.5% VREF (VREF = FSSET – ZSSET), the LTC2401/LTC2402 smoothly resolve the offset and overrange problems of preceding sensors or signal conditioning circuits. The LTC2401/LTC2402 communicate through a 2- or 3-wire digital interface that is compatible with SPI and MICROWIRETM protocols.

 

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Packaging

MSOP-10

LTC2402
LTC2402
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Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LTC2402CMS MSOP 10 C $6.50 $5.60 View
LTC2402CMS#PBF MSOP 10 C $6.50 $5.60 View
LTC2402CMS#TR MSOP 10 C   $5.66 View
LTC2402CMS#TRPBF MSOP 10 C   $5.66 View
LTC2402IMS MSOP 10 I $7.15 $6.10 View
LTC2402IMS#PBF MSOP 10 I $7.15 $6.10 View
LTC2402IMS#TR MSOP 10 I   $6.16 View
LTC2402IMS#TRPBF MSOP 10 I   $6.16 View
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

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Applications

  • Weight Scales
  • Direct Temperature Measurement
  • Gas Analyzers
  • Strain-Gage Transducers
  • Instrumentation
  • Data Acquisition
  • Industrial Process Control
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Simulate

To simulate selected Linear Technology products, please download LTSpice / SwitcherCAD III. This powerful schematic capture and simulation tool includes macro models for 80% of Linear Technology's switching regulators, over 200 op amp models, as well as resistors, transistors and MOSFET models.

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