DAC is a D/A converter IC and is used for converting 8 bit digital data input to analog signal output. It is a monolithic IC featuring a full. The DAC is an 8-bit monolithic digital-to-analog con- verter (DAC) DAC is independent of bit codes, and exhibits essen- DAC data sheet. DAC data sheet. Features. Y Relative accuracy g0 19% error maximum ( DAC). Y Full scale current match g1 LSB typ. Y 7 and 6-bit accuracy available.
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National Semiconductor – datasheet pdf
This is a major drawback which is eliminated in modern DAC to make them work from datashedt single power source. Similarly you can also use other application circuits for DAC given in the datasheet. Pin configuration DAC is a sixteen pin device and description for each pin is given below.
How to use DAC IC A typical application circuit for DAC is already given in the datasheet and we can use that catasheet to develop applications without worry as the circuit is tested working.
TL — Programmable Reference Voltage. The chip used to be popular a decade ago and its applications used to be many but at present there are many modern IC which can perform DAC with higher resolution, speed and efficiency. This op-amp circuit is called current-to-voltage converter.
The output analog voltage from op-amp is in linear relation with input digital value and hence DAC conversion with DAC is achieved. A typical application circuit for DAC is already given in the datasheet and we can use that circuit to develop applications without worry as the circuit is tested working.
The chip accuracy of conversion is good and power consumption is also low to make it popular. The power supply currents of the DAC are independent of bit codes, and exhibits essentially constant device characteristics over the entire supply voltage range.
So this device is mainly used for reference and beginner applications and nothing more. DAC IC is used in applications where a digital to analog conversion is required. The device takes in parallel 8 bit data from a microcontroller or microprocessor dataeheet converts that data in to analog signal at the output.
Submitted by admin on 27 October Working The device takes in parallel 8 bit data from a microcontroller or microprocessor and converts that data in to analog signal at the output. And the analog output from DAC is a current quantity and this needed to be converted in to voltage parameter for using in application easily.
So to convert the current parameter in to voltage parameter we will use op-amp circuit as shown in circuit diagram.