Simple Digital Voltmeter ICL7107 in Pakistan
ICL7107 Pinout Configuration
| Pin Number | Pin Name | Description |
| 1 | Supply voltage (+) | Provides the operating voltage for the IC |
| 2,3,4,5,6,7 and 8 | 7-Segment 4th digit | These pins are connected to the 7-segment display for displaying the once digit of output value. |
| 9,10,11,12,13,14 and 25 | 7-segment 3rd digit | These pins are connected to 7-segment for displaying the tenth digit |
| 15,16,17,18,22,23 and 24 | 7-sement 2nd digit | These pins are connected to 7-segment for displaying the hundredth digit |
| 19 and 20 | 7-segment 1st digit | These pins are connected to 7-segment for displaying the thousandth digit |
| 21 | Ground | Connected to the round of the system |
| 26 | Supply voltage (-) | Provide the negative supply voltage |
| 27 | Signal integrate | Connected to a capacitor |
| 28 and 29 | Auto Zero and buff | Connected to capacitor and resistor network |
| 30 and 31 | Input High and Input Low | The analog voltage that has to be measured is connected here |
| 32 | Common | Connected to ground |
| 33 and 34 | Cref+ and Cref- | Capacitor is connected across these pins for neutralizing fluctuations in reference voltage |
| 35 and 36 | Reference High and Reference Low | Either can supply reference voltage or use internal reference voltage |
| 37 | Test pin | Not used during operation |
| 38, 39 and 40 | OSC1, OSC2, OSC3 | Use RC network top set oscillator frequency |
Features
- 3 ½ bit (0-1999) ADC module with the 4-digit 7-segment display driver
- Supply Voltage: Single Supply 0-6V
Dual Supply -15 to +15V
- 3 ½ ADC module
- The analog input voltage is equal to the supply voltage
- An internal Oscillator is available
- Typical operating frequency: 48kHz
- Digital output value : 0 – 1999
- Can drive four 7-segment display
- Available in 40-pin PDIP, and MQFP
Package Include:
- 1 x Simple Digital Voltmeter ICL7107 in Pakistan
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