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LTC2421 - 典型应用图例：
LTC2421典型应用图例一
LTC2421典型应用图例二
LTC2421 - 封装图解：
LTC2421封装图解一
LTC2421封装图解二
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LINEAR产品 - LTC2421介绍

LTC2421 - LTC2421是1-/2-Channel 20-Bit μPower No Latency Delta Sigma? ADCs in MSOP-10

LTC2421是LINEAR凌力尔特公司的一款无延迟增量累加 ADC产品，LTC2421是LTC2421是1-/2-Channel 20-Bit μPower No Latency Delta Sigma? ADCs in MSOP-10，本站介绍了LTC2421的封装应用图解、特点和优点、功能等，并给出了与LTC2421相关的LINEAR元器件型号供参考。

LTC2421 - LTC2421是1-/2-Channel 20-Bit μPower No Latency Delta Sigma? ADCs in MSOP-10 - 无延迟增量累加 ADC - 数据转换 - 凌力尔特

LTC2421 - 1-/2-Channel 20-Bit μPower No Latency Delta Sigma? ADCs in MSOP-10

LTC2421 - 1-/2-Channel 20-Bit μPower No Latency Delta Sigma? ADCs in MSOP-10 - Linear Technology（凌力尔特）

功能描述
The LTC2421/LTC2422 are 1- and 2-channel 2.7V to 5.5V micropower 20-bit analog-to-digital converters with an integrated oscillator, 8ppm INL and 1.2ppm 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 DeltaSigma converters and simplifies multiplexed applications.

Through a single pin, the LTC2421/LTC2422 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 LTC2421/LTC2422 smoothly resolve the offset and overrange problems of preceding sensors or signal conditioning circuits.

The LTC2421/LTC2422 communicate through a 2- or 3-wire digital interface that is compatible with SPI and MICROWIRE? protocols.

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特点
  • 20-Bit ADCs in Tiny MSOP-10 Packages
  • 1- or 2-Channel Inputs
  • Single Supply 2.7V to 5.5V Operation
  • Low Supply Current (200μA) and Auto Shutdown
  • Automatic Channel Selection (Ping-Pong) (LTC2422)
  • No Latency: Digital Filter Settles in a Single Conversion Cycle
  • 8ppm INL, No Missing Codes
  • 4ppm Full-Scale Error
  • 0.5ppm Offset
  • 1.2ppm Noise
  • Zero Scale and Full Scale Set for Reference and Ground Sensing
  • Internal OscillatorNo External Components Required
  • 110dB Min, 50Hz/60Hz Notch Filter
  • Reference Input Voltage: 0.1V to VCC
  • Live ZeroExtended Input Range Accommodates 12.5% Overrange and Underrange
  • Pin Compatible with LTC2401/LTC2402
    • 应用
  • Weight Scales
  • Direct Temperature Measurement
  • Gas Analyzers
  • Strain Gauge Transducers
  • Instrumentation
  • Data Acquisition
  • Industrial Process Control
    • 以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）
    器件型号 封装 温度 价格 (以 1 ~ 99 片为批量) 价格 (以 1000 片为批量)
    LTC2421CMS MS-10 C $5.40 $4.35
    LTC2421CMS#PBF MS-10 C $5.40 $4.35
    LTC2421CMS#TR MS-10 C $4.41
    LTC2421CMS#TRPBF MS-10 C $4.41
    LTC2421IMS MS-10 I $6.10 $4.90
    LTC2421IMS#PBF MS-10 I $6.10 $4.90
    LTC2421IMS#TR MS-10 I $4.96
    LTC2421IMS#TRPBF MS-10 I $4.96
    下面可能是您感兴趣的Linear Technology（凌力尔特）元器件
  • LTC2440 - 具可选速度/分辨率的 24 位高速差分 ΔΣ ADC
  • LTC2400 - 24-Bit μPower No Latency Delta-Sigma? ADC in SO-8
  • LTC2411 - 采用 MSOP 封装并具差分输入和基准的 24 位、无延迟增量累加 ΔΣ ADC
  • LTC2422 - 1-/2-Channel 20-Bit μPower No Latency Delta Sigma? ADCs in MSOP-10
  • LTC2420 - 20-Bit μPower No Latency Delta Sigma? ADC in SO-8
  • LTC2401 - 1-/2-Channel 24-Bit μPower No Latency Delta-Sigma? ADC in MSOP-10
  • LTC2484 - 具 Easy Drive 输入电流抵消功能的 24 位 ΔΣ ADC
  • LTC2442 - 具集成型放大器的 24 位、高速、4 通道 ΔΣ ADC
  • LTC2435 / LTC2435-1 - 具差分输入和差分基准的 20 位无延迟 ΔΣ ADC
  • LTC2413 - 具同时 50Hz/60Hz 抑制的 24 位、无延迟增量累加 ΔΣ ADC
    • 下面可能是您感兴趣的凌力尔特公司无延迟增量累加 ADC元器件
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