Precision Air−Core

Tach/Speedo Driver with

Return to Zero

The CS8190 is specifically designed for use with air−core meter

movements. The IC provides all the functions necessary for an analog

tachometer or speedometer. The CS8190 takes a speed sensor input

and generates sine and cosine related output signals to differentially

drive an air−core meter.

Many enhancements have been added over industry standard

tachometer drivers such as the CS289 or LM1819. The output utilizes

differential drivers which eliminates the need for a zener reference

and offers more torque. The device withstands 60 V transients which

decreases the protection circuitry required. The device is also more

precise than existing devices allowing for fewer trims and for use in a

speedometer.

 

 

 

Features

 Direct Sensor Input

 High Output Torque

 Low Pointer Flutter

 High Input Impedance

 Overvoltage Protection

 Return to Zero

 Internally Fused Leads in PDIP−16 and SO−20W Packages

 Pb−Free Packages are Available

 

 

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