com CS4121 Low Voltage Precision Air−Core Tach/Speedo Driver The CS4121 is specifically designed for use with air−core meter movements.
The IC provides all the functions necessary for an analog tachometer or speedometer.
The CS4121 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 mo...

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