DAC ICs

DAC chips (digital-to-analog converters) convert a digital code (usually binary) into an analog signal: voltage or current. They are bought for use in audio products (playback, sound cards), control systems, automation and data acquisition, measuring instruments and telecommunications.

Main characteristics of DAC chips

• Bit depth (bit depth). Shows how many levels the converter can generate: 8/10/12/14/16+ bits. The higher the bit depth, the more accurate the installation is potentially.
• The type of output. Current (for example, 4-20 mA) is convenient for industrial tasks and often requires an external conversion/load circuit, and the voltage output is easier to directly set the level at the inputs of analog nodes.
• The management interface. I2C and SPI chips are usually ordered, but other bus options are less common.
• Reference voltage (Vref). It directly sets the scale of the output signal, so it is important whether a built-in sensor is provided or an external one is required, and what range is acceptable.
• Accuracy and linearity. DNL (differential nonlinearity) and INL (integral nonlinearity) are important. They show how much the actual gear ratio deviates from the ideal one.

How to choose a DAC chip

Predictable accuracy and speed are important for control and data collection systems. If the signal needs to change instantly, you need to pay attention to how quickly the characteristics stabilize to the desired accuracy after changing the code. At the same time, it is desirable that the component is inexpensive and fits into the project budget.

Common mistakes when choosing and using DAC chips

They often focus only on bit depth, forgetting that the final accuracy is also set by linearity (INL/DNL) and other errors. The second typical mistake is not to pay attention to the reference voltage and its filtering/decoupling: noise and instability of the support directly turn into drift at the output of the converter. Another practical problem is the incorrect load and switching on of the output. Without taking into account the buffer, output range, and load requirements, you can get amplitude limitation, distortion, and instability.

Why choose "CHIP and DIP"?

By purchasing electronic components from the CHIP and DIP online store, you get a working database for audio projects, control systems, data collection and measurement tasks - with a clear choice of key parameters (price, bit rate, interface, output type, reference voltage, speed).

The goods are delivered in Moscow and throughout Russia. Order chips from our catalog wholesale and retail for professional and amateur projects.

You can receive an order at our office and pick-up point in Yerevan. Delivery of goods is carried out throughout Armenia by courier and Haypost.
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Products from the group «DAC ICs» you can buy wholesale and retail.