ES5120
3 3/4 DIGIT A/D CONVERTER
１．
GENERAL DESCRIPTION
The ES5120 is a 3 3/4 digit
measurement system which
combines integrating analog-to-digital converter, frequency counter,and
logic level tester in either 40-pin DIP package or 44-pin QFP
package
．
The high level of integration permits ES5120-based
instruments to deliver
higher performance and more features while
actually reducing parts count.
With a maximum range of 3999 counts, the ES5120 provides
10 times greater resolution in the 200mV to 400mV range than
traditional 3 1/2 digit meters. An autozero cycle guarantees a
zero reading with a 0V input. CMOS Processing reduces analog
input bias current to only 1PA. Rollover error, the difference
in readings for equal magnitude but opposite polarity input
signals, is less than
±
1 Count. Differential reference inputs
permit ratiometric measurements for ohms or bridge transducer
applications.
The ES5120's frequency counter option simplifies design
of an instrument which is well suited to both analog and digital
troubleshooting : voltage, current, and resistance measurements
plus precise frequency measurements to 4 MHz (higher frequencies
can be measured with an external prescaler) and a simple logic
probe. The frequency counter will automatically adjust its range
to match the input frequency, over a four decade range.
CYRUSTEK [ Cyrustek corporation ]
