DAC8163TDSCR

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Data Acquisition - Digital to Analog Converters (DACs) are devices that convert digital signals, such as binary encoded signals, into analog signals for use in many types of applications. DACs are available in many forms including integrated circuit (IC) packages, discrete components, and FPGA and ASIC devices. Among these, the DAC8163TDSCR from Texas Instruments is a popular choice for industrial, medical, and consumer applications that have demanding requirements for accuracy and reliability. The following will discuss the application field, features, and working principle of the DAC8163TDSCR.

The DAC8163TDSCR is an 8-bit buffered voltage output digital to analog converter and is suitable for a wide range of digital signal processing (DSP) applications. Its dual-output architecture offers a high degree of flexibility, allowing for the simultaneous operation of analog output and input pins. The low-noise nature of the DAC8163TDSCR makes it well suited for low-voltage signal conditioning and noise cancellation techniques, while its low-power consumption makes it well suited for portable and battery-operated applications. The device has an operating temperature range of -40 to +85°C and is available in an 8-contact SOIC package.

The DAC8163TDSCR features an innovative architecture that eliminates the need for trimming in many applications. It uses a high-accuracy 24-bit delta-sigma modulator that provides true 16-bit resolution. The output amplifier is calibrated using on-chip trimming, eliminating the need for external calibration. This ensures that the output signal is always within specifications and provides a reliable system performance. The device also features a 1.2 MHz 3-pole Butterworth low-pass filter for signal conditioning and 1-pole digital step filter for rejecting out-of-band signal artifacts.

The working principle of the DAC8163TDSCR is simple. In a digital system, binary data or digital words are encoded in digital form as numbers that can range from 0 to 255, refer to Figure 1. The data is then converted to an analog form by the DAC8163TDSCR at a set frequency. The data is then interpolated, or interpolation is applied, meaning that the output is smoother than the input. The DAC8163TDSCR\'s outputs are then ready to drive downstream components, such as analog-to-digital converters (ADCs) or voltage-controlled amplifiers (VCAs).

In summary, the DAC8163TDSCR from Texas Instruments is a low-cost, low-power, and low-noise solution for a variety of digital signal conversion applications. Its innovative architecture eliminates the need for trimming in many applications, while its wide operating temperature range makes it suitable for use in even the most extreme industrial and consumer environments. Its high accuracy 24-bit Delta–Sigma modulator ensures true 16-bit resolution and reliable operation, making it an ideal choice for industrial, medical, and consumer applications that have demanding requirements for accuracy and reliability.

Figure 1: The data encoding for DAC8163TDSCR (source)

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