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LTC1090 - 典型应用图例：
LTC1090典型应用图例一
LTC1090典型应用图例二
LTC1090 - 封装图解：
LTC1090封装图解一
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LINEAR产品 - LTC1090介绍

LTC1090 - LTC1090是Single Chip 10-Bit Data Acquisition System

LTC1090是LINEAR凌力尔特公司的一款通用型 SAR ADC产品，LTC1090是LTC1090是Single Chip 10-Bit Data Acquisition System，本站介绍了LTC1090的封装应用图解、特点和优点、功能等，并给出了与LTC1090相关的LINEAR元器件型号供参考。

LTC1090 - LTC1090是Single Chip 10-Bit Data Acquisition System - 通用型 SAR ADC - 数据转换 - 凌力尔特

LTC1090 - Single Chip 10-Bit Data Acquisition System

LTC1090 - Single Chip 10-Bit Data Acquisition System - Linear Technology（凌力尔特）

功能描述

The LTC?1090 is a data acquisition component which contains a serial I/O successive approximation A/D converter. It uses LTCMOS switched capacitor technology to perform either 10-bit unipolar, or 9-bit plus sign bipolar A/D conversions. The 8-channel input multiplexer can be configured for either single ended or differential inputs (or combinations thereof). An on-chip sample and hold is included for all single ended input channels.

The serial I/O is designed to be compatible with industry standard full duplex serial interfaces. It allows either MSB or LSB first data and automatically provides 2’s complement output coding in the bipolar mode. The output data word can be programmed for a length of 8, 10, 12 or 16 bits. This allows easy interface to shift registers and a variety of processors.

The LTC1090A is specified with total unadjusted error (including the effects of offset, linearity and gain errors) less than ?0.5LSB.

The LTC1090 is specified with offset and linearity less than ?0.5LSB but with a gain error limit of ?2LSB for applications where gain is adjustable or less critical.

特点
  • Software Programmable Features
  • Unipolar/Bipolar Conversions
  • 4 Differential/8 Single Ended Inputs
  • MSB or LSB First Data Sequence
  • Variable Data Word Length
  • Built in Sample and Hold
  • Single Supply 5V, 10V or ±5V Operation
  • Direct 4 Wire Interface to Most MPU Serial Ports and All MPU Parallel Ports
  • 30kHz Maximum Throughput Rate
    • 应用
  • Resolution: 10 Bits
  • Total Unadjusted Error (LTC1090A): ±1/2LSB Max
  • Conversion Time: 22µs
  • Supply Current: 2.5mA Max, 1.0mA Typ
    • 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)
    LTC1090ACN N-20 C $17.15 $14.95
    LTC1090ACN#PBF N-20 C $17.15 $14.95
    LTC1090CN N-20 C $11.65 $9.45
    LTC1090CN#PBF N-20 C $11.65 $9.45
    LTC1090CSW SW-20 C $14.08 $11.40
    LTC1090CSW#PBF SW-20 C $14.08 $11.40
    LTC1090CSW#TR SW-20 C $11.50
    LTC1090CSW#TRPBF SW-20 C $11.50
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