LTC6943 微功率、精准仪表双开关电容器单元式部件

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

产品特点 Features
  • 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
参数
LTC6943 参数
应用
  • Ultra Precision Voltage Inverters, Multipliers and Dividers
  • V–F and F–V Converters
  • Sample-and-Hold
  • Current Sources
  • Precision Instrumentation Amplifiers
典型应用图
LTC6943 典型应用
LTC6943 订购信息和价格参考Package Variations and Pricing
器件型号 封装 引脚 温度 价格 (以 1 ~ 99 片为批量) 价格 (以 1000 片为批量) *
LTC6943CGN SSOP 16 C $4.29  $3.00 
LTC6943CGN#PBF SSOP 16 C $4.29  $3.00 
LTC6943CGN#TR SSOP 16 C $3.06 
LTC6943CGN#TRPBF SSOP 16 C $3.06 
LTC6943HGN SSOP 16 H $4.91  $3.45 
LTC6943HGN#PBF SSOP 16 H $4.91  $3.45 
LTC6943HGN#TR SSOP 16 H $3.51 
LTC6943HGN#TRPBF SSOP 16 H $3.51 
LTC6943IGN SSOP 16 I $4.91  $3.45 
LTC6943IGN#PBF SSOP 16 I $4.91  $3.45 
LTC6943IGN#TR SSOP 16 I $3.51 
LTC6943IGN#TRPBF SSOP 16 I $3.51 
LTC6943 数据手册及相关资料下载
  1. 数据手册(英文) : LTC6943 - Micropower, Dual Precision Instrumentation Switched Capacitor Building Block.PDF
  2. 应用指南 (英文) : AN113 - Power Conversion, Measurement and Pulse Circuits.PDF
  3. 应用指南 (英文) : AN98 - Signal Sources, Conditioners and Power Circuitry Circuits of the Fall, 2004.PDF
  4. 可靠性数据 : R071 Reliability Data .PDF