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TI(BB) ADC ADS7844

ADS7844

芯片信息

型号 封装 在线定购
ADS7844E（查看） SSOP / QSOP20
ADS7844EB（查看） SSOP / QSOP20

引脚布局

（点击图片看大图）
技术资料—— ADS7844 PDF技术资料

ADS7844 概述

The ADS7844 is an 8-channel, 12-bit sampling analog-to-digital converter (ADC) with a synchronous serial interface. Typical power dissipation is 3mW at a 200kHz throughput rate and a +5V supply. The ADS7844 includes a shutdown mode which reduces power dissipation to under 1µW. The ADS7844 is guaranteed down to 2.7V operation.

Low power, high speed, and on-board multiplexer make the ADS7844 ideal for battery- operated systems such as personal digital assistants, portable multichannel data loggers, and measurement equipment. The serial interface also provides low-cost isolation for remote data acquisition. The ADS7844 is available in a 20-lead QSOP package and the MAX147 equivalent 20-lead SSOP is guaranteed over the –40°C to +85°C temperature range.
ADS7844 参数
ADS7844 基本参数
分辨率(Bits)   12
采样速率(max)   200 kSPS
ADS7844 其他特性
工作电压(V)   2.7～5.25
输入通道数   8
ADS7844 封装与引脚
SSOP20, SSOP/QSOP20

ADS7844 特性

  • SINGLE SUPPLY: 2.7V to 5V
  • 8-CHANNEL SINGLE-ENDED OR 4-CHANNEL DIFFERENTIAL INPUT
  • UP TO 200kHz CONVERSION RATE
  • ±1 LSB MAX INL AND DNL
  • NO MISSING CODES
  • 72dB SINAD
  • SERIAL INTERFACE
  • 20-LEAD QSOP AND 20-LEAD SSOP PACKAGES
  • ALTERNATE SOURCE FOR MAX147

ADS7844 应用

  • DATA ACQUISITION
  • TEST AND MEASUREMENT
  • INDUSTRIAL PROCESS CONTROL
  • PERSONAL DIGITAL ASSISTANTS
  • BATTERY-POWERED SYSTEMS