DDC264CZAWR

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Data acquisition technology is rapidly advancing due to the modern demand for efficient, accurate, and high-performance measurements and applications. The increasing sophistication of analog-to-digital converters (ADC) is one of the components driving this advancement. The Texas Instruments DDC264CZAWR is a 10-bit, 1.8-V ADC that offers superior resolution, accuracy, and performance in a compact form factor. This ADC is a perfect solution for embedded design applications such as portable instrumentation, automated test systems, and embedded systems.

Overview of DDC264CZAWR

The DDC264CZAWR is a low-power, low-cost 10-bit ADC featuring 1.8-V core supply and 2.5-V analog input range. It has an 80-MHz sample rate, with a maximum conversion rate of 80 MSPS. It also has a digital filter that eliminates the need for external digital filters, resulting in a low component count.

This ADC has a high signal-to-noise ratio (SNR) of 60 dB (typical) for pulse density modulation (PDM) signals up to 16 MHz. It also has a low spurious-free dynamic range (SFDR) of 70 dB (typical) for PDM signals up to 16 MHz. For thermal noise, the ADC has a maximum input-referred voltage noise of 3 μV RMS (1 Hz -100 kHz).

The DDC264CZAWR comes in a compact, 48-pin TQFP package and has an operating temperature range of -40°C to 85°C. Additionally, the device is available in both a static and dynamic power-down mode to preserve power when the device is not in use.

Application Field and Working Principle

The DDC264CZAWR is an excellent choice for embedded designs requiring high-resolution, accurate, and performance-driven analog-to-digital conversion in a small form factor. Common applications for the DDC264CZAWR include:

• Portable instrumentation
• Automated test systems
• Embedded systems
• Industrial process control
• Automotive systems

The DDC264CZAWR utilizes a Time-Interleaved Differential Sub-Range ADC (TIDS) architecture to achieve its high-resolution and low-noise performance. This architecture divides the dynamic range of the signal into multiple, mutuallty exclusive sub-ranges, referred to as "decks". Each deck also has several parallel "buckets", which are the smallest unit in the signal chain and are responsible for the conversion of the signal. The signal is then combined in a summation circuit to produce the final output at 10-bits of resolution.

The input signal is first conditioned by a gain stage, which sets the signal to the required voltage range. Then, it passes through a track-and-hold (T/H) circuit and high-pass filters that remove unwanted AC components. After the signal is sampled and held, it is then passed to the analog multiplexers, which separate the signal into multiple sub-ranges. These sub-ranges are then converted, and the resulting digital output is combined in a summation circuit to produce the final 10-bit output.

The DDC264CZAWR also utilizes an advanced digital filter that eliminates the need for external digital filters, reducing component count and ensuring higher operational performance. The digital filter helps in reducing signal distortion and additive noise, resulting in better SNR and SFDR performance.

Conclusion

The Texas Instruments DDC264CZAWR is an excellent 10-bit ADC offering features such as high resolution, low power consumption, and small form factor. Its advanced technology and architecture make it an ideal solution for demanding embedded design applications such as portable instrumentation, automated test systems, and embedded systems. Its Time-Interleaved Differential Sub-Range ADC architecture and digital filter architecture help to reduce signal distortion and noise, resulting in improved performance.

The specific data is subject to PDF, and the above content is for reference