DESCRIPTION
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.

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

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