ES5120
3 3/4 DIGIT A/D CONVERTER
accuracy. For accurate frequency measurements, a crystal
oscillator is recommended.
The frequency counter will automatically select the proper
range. Autorange operation extends over four decades, from
3.999 kHz to 3.999 MHz. Decimal points are set automatically
in the frequency mode, (Figure 6).
The logic switching levels of the RANGE/FREQ input are
CMOS levels. For best counter operation, an external buffer is
recommended.