LTC6943

不推荐用于新设计

微功率、精准仪表双开关电容器单元式部件

产品技术资料帮助

ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许,也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。

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概述

  • Low Power, IS = 60µA(Max)
  • Robust, Latch Up Proof
  • Instrumentation Front End with 120dB CMRR
  • Precise, Charge-Balanced Switching
  • Operates from 5V to 18V
  • Internal or External Clock
  • Operates up to 5MHz Clock Rate
  • Two Independent Sections with One Clock
  • Tiny SSOP-16 Package

The LTC®6943 is a monolithic, charge-balanced, dual switched capacitor instrumentation building block. A pair of switches alternately connects an external capacitor to an input voltage and then connects the charged capacitor across an output port. The internal switches have a break-before-make action. An internal clock is provided and its frequency can be adjusted with an external capacitor. The LTC6943 can also be driven with an external CMOS clock.

The LTC6943, when used with low clock frequencies, provides ultra precision DC functions without requiring precise external components. Such functions are differential voltage to single-ended conversion, voltage inversion, voltage multiplication and division by 2, 3, 4, 5, etc.

The LTC6943 is manufactured using Linear Technology’s enhanced LTCMOSTM silicon gate process, and it is functionally compatible with the LTC1043.


Applications
  • Ultra Precision Voltage Inverters, Multipliers and Dividers
  • V–F and F–V Converters
  • Sample-and-Hold
  • Current Sources
  • Precision Instrumentation Amplifiers

LTC6943
微功率、精准仪表双开关电容器单元式部件
Precision Voltage Controlled Current Source with Ground Referred Input and Output Precision Current Sensing in Supply Rails Product Package 1
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