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LTC1291 - 典型应用图例：
LTC1291典型应用图例一
LTC1291典型应用图例二
LTC1291 - 封装图解：
LTC1291封装图解一
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LINEAR产品 - LTC1291介绍

LTC1291 - LTC1291是Single Chip 12-Bit Data Acquisition System

LTC1291是LINEAR凌力尔特公司的一款通用型 SAR ADC产品，LTC1291是LTC1291是Single Chip 12-Bit Data Acquisition System，本站介绍了LTC1291的封装应用图解、特点和优点、功能等，并给出了与LTC1291相关的LINEAR元器件型号供参考。

LTC1291 - LTC1291是Single Chip 12-Bit Data Acquisition System - 通用型 SAR ADC - 数据转换 - 凌力尔特

LTC1291 - Single Chip 12-Bit Data Acquisition System

LTC1291 - Single Chip 12-Bit Data Acquisition System - Linear Technology（凌力尔特）

功能描述

The LTC1291 is a data acquisition system that contains a serial I/O successive approximation A/D converter. It uses LTCMOS™ switched capacitor technology to perform a 12-bit unipolar A/D conversion. The input multiplexer can be configured for either single-ended or differential inputs. An on-chip sample-and-hold is included on the “+” input. When the LTC1291 is idle, it can be powered down in applications where low power consumption is desired. An external reference is not required because the LTC1291 takes its reference from the power supply (VCC). All these features are packaged in an 8-pin DIP.

The serial I/O is designed to communicate without external hardware to most MPU serial ports and all MPU parallel I/O ports allowing data to be transmitted over three or four wires. Given the accuracy, ease of use and small package size, this device is well suited for digitizing analog signals in remote applications where minimum number of interconnects, small physical size, and low power consumption are important.

特点
  • Built-In Sample-and-Hold
  • Single Supply 5V Operation
  • Power Shutdown
  • Direct 3- or 4-Wire Interface to Most MPU Serial Ports and All MPU Parallel Ports
  • Two-Channel Analog Multiplexer
  • Analog Inputs Common Mode to Supply Rails
  • 8-Pin DIP Package
    • 应用
  • Resolution: 12 Bits
  • Fast Conversion Time: 12µs Max Over Temp.
  • Low Supply Current:6.0mA (Typ) Active Mode10µA (Max) Shutdown Mode
    • 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)
    LTC1291BCN8 N-8 C $23.50 $18.55
    LTC1291BCN8#PBF N-8 C $23.50 $18.55
    LTC1291CCN8 N-8 C $18.75 $14.80
    LTC1291CCN8#PBF N-8 C $18.75 $14.80
    LTC1291DCN8 N-8 C $12.10 $9.40
    LTC1291DCN8#PBF N-8 C $12.10 $9.40
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  • LTC6992-1 / LTC6992-2 / LTC6992-3 / LTC6992-4 - TimerBlox : 电压控制型脉宽调制器 (PWM)
  • LT3083 - 可调 3A 单电阻器低压差线性稳压器
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  • LTC1288 - 3V Micropower Sampling 12-Bit A/D Converters in SO-8 Packages
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