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R1 is for the decimal point indication, hence cw7107gp relevance on the measurement of voltage. It is written that R1 and C1 se the frequency to 48hz but it is wrong.

For calibration short input and wind 20K pot until the reading is JUST and calibration is spot on on all ranges with good stability.

I beeternot build this,NO? On the datasheet page 4 you can see the configuration for mV full scale.

For calibration, power up the circuit and short the input terminals. Please anyone help me. In this page we will use this circuit to discuss for improvements and we will introduce some changes based on original schematic.

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Kindly datashheet through Intersil datasheet which is more informative http: In the above circuit the maximum reading can be However, the unit display constantly displays random numbers.


The process taking place inside our ADC can be stated as follows. Parts list added above. Led display digital Voltmeter http: If yes, what changes should I apply?

Hi Mahamoud please go through the intersil datasheet for your requirement http: The board is made of a thin insulating material clad with a thin layer of conductive copper that is shaped in such a way as to form the necessary conductors between the various components of the circuit.

Learn how your comment data is processed. This IC has the following very important features:. You will need to add an additional voltage divider to scale the Vdc to 2Vdc and be sure to use high value resistors to limit the current consumption on the resistor divider.

Its the trimmer potentiometer for calibration! Then a known reference voltage of datqsheet polarity is applied to the input of the integrator and allowed to ramp until the output of integrator becomes zero. Hi Adnan If your final drive devices have open NPN collector then you require common anode display such that the required segment can be pulled to ground for glowing. In order to solder a component correctly you should do the following:. The capacitor C5 forces the instrument to display zero when there is no voltage at datassheet input.


CSGP Datasheet PDF

First of all let us consider a few basics in building electronic circuits on a printed circuit board. The resistor R2 together with P1 are used to adjust the instrument during set-up so that it displays zero when the input is zero.

These are the input of the IC as you can see from its diagram. There is given for DC voltage measurement,is it possible to measure for AC also or any modifications are required please give me suggestion. I was told that these are the ext. Hi, I have assembled all the parts as per the diagram.

(PDF) CS7107GP Datasheet download

The circuits built into the IC are an analogue to digital converter, a comparator, a clock, a decoder and a seven segment LED display driver. Hi I would like to measure the output voltage in mV range, and cs7107bp input voltage will be datashedt by the Piezoelectric diodes pressure sensor.

Use RS website for data sheets. Leave a Reply Cancel reply. Too much flux can cause many problems and is one of the main causes of circuit malfunction.