- This IC is a digital to analog converter which is used to convert 8-bit digital input data to analog signal output and the input is 8-bit data.
- The power consumption of this IC is low and the accuracy of conversion is good.
- The power supply current of this IC is independent of bit codes.
Working
- This device needs two voltage sources +5V and -15V as shown in the above circuit diagram.
- The DAC0808 IC has 8 input pins (A1 to A8) which are connected in MSB to LSB form.
- The DAC0808 IC takes 8-bit parallel data from a microcontroller or microprocessor.
- Then it converts the data into an analog signal at the output and the output data from DAC is a current quantity, and this needs to be converted into voltage parameters for use in application easily.
- The converted the current parameter into the voltage parameter we use the op-amp circuit which is also called a current to voltage converter.
Pin Configuration
| Pins | Description |
|---|---|
| Pin1 | (NC)- No connection |
| Pin2 | (GND)-Ground Pin |
| Pin3 | (VEE)-Negative (-ve) power supply |
| Pin4 | (IO)-Input/Output signal pin |
| Pin5 | (A1)- MSB (Digital i/p bit-1) |
| Pin6 | (A2)-Digital i/p bit-2 |
| Pin7 | (A3)-Digital i/p bit-3 |
| Pin8 | (A4)-Digital i/p bit-4 |
| Pin9 | (A5)-Digital i/p bit-5 |
| Pin10 | (A6)-Digital i/p bit-6 |
| Pin11 | (A7)-Digital i/p bit-7 |
| Pin12 | (A8)-Digital i/p bit-8 (Least Significant Bit) |
| Pin13 | (VCC)-Positive (+ve) power supply |
| Pin14 | (VREF+)-Positive (+ve) reference voltage |
| Pin15 | (VREF-)-Negative (-ve) reference voltage |
| Pin16 | (Compensation)-Compensation capacitor pin |
Applications of IC DAC0808
- It is used in the Conversion of Audio, Electrical measurements, Analog circuits as well as digital circuits, And many more hobbyist applications.
