AD977CRZRL

Number of A/D Converters:	1
Base Part Number:	AD977
Supplier Device Package:	20-SOIC
Package / Case:	20-SOIC (0.295", 7.50mm Width)
Operating Temperature:	-40°C ~ 85°C
Features:	--
Voltage - Supply, Digital:	5V
Voltage - Supply, Analog:	5V
Reference Type:	External, Internal
Architecture:	SAR
Series:	--
Ratio - S/H:ADC:	--
Configuration:	ADC
Data Interface:	SPI
Input Type:	Single Ended
Number of Inputs:	1
Sampling Rate (Per Second):	100k
Number of Bits:	16
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The AD977CRZRL is a high performance analog-to-digital converter (ADC) designed for a variety of data acquisition applications. It offers outstanding speed, wide input signal range, and precision accuracy. The AD977CRZRL provides very high resolution, wide signal bandwidth and low conversion delay, making it an ideal choice for signal acquisition and signal digitization applications.

Application Field of AD977CRZRL

The AD977CRZRL is an ideal choice for a wide range of signal acquisition applications including robotics, industrial automation, process control, instrumentation, measurement, scientific research and test equipment. Additionally, the AD977CRZRL is well suited for applications that require precision and low noise processing such as medical imaging, ultrasound and aerospace.The AD977C offers 16-bit resolution with a signal to noise ratio of -83 dB or better over the input signal range. The AD977CRZRL can sample at rates up to 15MS/s and provide a variety of transitions and filters to help reduce noise and improve resolution. This allows the converter to acquire signals with high frequency and minuscule slew rate that require precise filtering.

Working Principle of AD977CRZRL

The AD977CRZRL works on a two-step process. First, it converts the analog signal into a digital signal by sampling the analog signal at a rate specified by the user. An internal clock and track-and-hold circuit samples the input signal at a rate of up to 15MS/s. The clock and track-and-hold circuitry synchronizes and captures the analog signal and converts it into a 16-bit digital code. Next, the digital signal is processed through an on-chip Sigma-Delta modulator, which digitizes the signal without distortion or noise. The Sigma-Delta modulator performs the analog to digital conversion using a combination of low-pass filtering, decimation, and integrator-based oversampling. This process allows the AD977CRZRL to achieve a high resolution (16-bit), high speed (up to 15MS/s) and low noise, ensuring that the final output is an accurate representation of the original analog signal.

Conclusion

The AD977CRZRL is an effective choice for a variety of data acquisition applications, providing high resolution, low latency, and low noise. Its two-step conversion process of sampling and sigma-delta modulator make it an ideal choice for precision applications where ensured accuracy is needed. With its wide input range, multiple output options and powerful internal processing capabilities, the AD977CRZRL is definitely worth a look the next time you need a reliable and precise analog-to-digital converter.

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