DESCRIPTION
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.

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

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