LTC1043 Dual Precision Instrumentation Switched-Capacitor Building Block

The LTC™1043 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 LTC1043 can also be driven with an external CMOS clock.

The LTC1043, 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 LTC1043 can also be used for precise VµF and FµV circuits without trimming, and it is also a building block for switched capacitor filters, oscillators and modulators.

The LTC1043 is manufactured using linear Technology’s enhanced LTCMOS® silicon gate process

产品特点 Features

Instrumentation Front End with 120dB CMRR
Precise, Charge-Balanced Switching
Operates from 3V to 18V
Internal or External Clock
Operates up to 5MHz Clock Rate
Low Power
Two Independent Sections with One Clock

参数

应用

Precision Instrumentation Amplifiers
Ultra Precision Voltage Inverters, Multipliers and Dividers
V-F and F-V Converters
Sample and Hold
Switched-Capacitor Filters

典型应用图

LTC1043 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) *
LTC1043CN	PDIP	18	C	$3.42	$2.85
LTC1043CN#PBF	PDIP	18	C	$3.42	$2.85
LTC1043CSW	SO	18	C	$3.75	$3.00
LTC1043CSW#PBF	SO	18	C	$3.75	$3.00
LTC1043CSW#TR	SO	18	C		$3.10
LTC1043CSW#TRPBF	SO	18	C		$3.10

LTC1043 数据手册及相关资料下载

数据手册(英文) : LTC1043 - Dual Precision Instrumentation Switched-Capacitor Building Block.PDF
应用指南 (英文) : AN11 - Designing linear Circuits for 5V Single Supply Operation.PDF
应用指南 (英文) : AN14 - Designs for High Performance Voltage-to-Frequency Converters.PDF
应用指南 (英文) : AN18 - Power Gain Stages for Monolithic Amplifiers.PDF
应用指南 (英文) : AN28 - Thermocouple Measurement.PDF
应用指南 (英文) : AN3 - Applications for a Switched-Capacitor Instrumentation Building Block.PDF
应用指南 (英文) : AN42 - Voltage Reference Circuit Collection.PDF
应用指南 (英文) : AN43 - Bridge Circuits.PDF
应用指南 (英文) : AN45 - Measurement and Control Circuit Collection.PDF
应用指南 (英文) : AN52 - linear Technology Magazine Circuit Collection, Volume 1.PDF
应用指南 (英文) : AN7 - Some Techniques for Direct Digitization of Transducer Outputs.PDF
应用指南 (英文) : AN8 - Power Conditioning Techniques for Batteries.PDF
应用指南 (英文) : AN9 - Application Considerations and Circuits for a New Chopper-Stabilized Op Amp.PDF
应用指南 (英文) : AN92 - Bias Voltage and Current Sense Circuits for Avalanche Photodiodes.PDF
设计要点 (英文) : DN207 - LTC2400 High Accuracy Differential to Single-Ended Converter for ±5V Supplies.PDF
可靠性数据 : R071 Reliability Data .PDF
LT Journal : Jun 1999 LTC2400 Differential Bridge Digitizers.PDF