AD9288BSTZ-40

Number of A/D Converters:	2
Base Part Number:	AD9288
Supplier Device Package:	48-LQFP (7x7)
Package / Case:	48-LQFP
Operating Temperature:	-40°C ~ 85°C
Features:	Simultaneous Sampling
Voltage - Supply, Digital:	2.7 V ~ 3.6 V
Voltage - Supply, Analog:	2.7 V ~ 3.6 V
Reference Type:	External, Internal
Architecture:	Pipelined
Series:	--
Ratio - S/H:ADC:	1:1
Configuration:	S/H-ADC
Data Interface:	Parallel
Input Type:	Differential
Number of Inputs:	2
Sampling Rate (Per Second):	40M
Number of Bits:	8
Part Status:	Active
Packaging:	Tray

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Data Acquisition - Analog to Digital Converters (ADC)

Analog-to-Digital Converters (ADCs) are vital components in many electronic systems, from laptop computers to industrial controls to medical equipment, and they are also critical in the development of AI-enabled technologies. One of the most widely used ADC types is the AD9288BSTZ-40, which is a high-speed, low-power, 8-bit ADC that is capable of sampling frequencies up to 64MSPS (million samples per second). Let\'s take a look at the key features of the AD9288BSTZ-40, the applications fields where it is commonly used, and how it works.

Key Features of the AD9288BSTZ-40

The AD9288BSTZ-40 is a single-supply, low-power 8-bit ADC with a sampling speed of up to 64MSPS. It has a maximum power consumption of 5W, and its integrated input comparator and reference buffer allow for a wide input range of ±4.75V. The device can be operated using a single 3.3V supply, and its low input capacitance and high input impedance enable it to maintain its performance across a wide temperature range. Other key features of the AD9288BSTZ-40 include an on-chip test bus for the easy control and debug of the device, and its on-chip low-pass filter and ADC clock synthesizer reduces system complexity.

Application Fields of the AD9288BSTZ-40

The AD9288BSTZ-40 is a versatile device and is used in a wide range of applications, including communications systems, industrial controls, automotive systems and home appliances. It is ideal for applications requiring high data-conversion rate, low power and small size. In addition, the ADC\'s wide operating temperature range and low power consumption make it suitable for use in applications where temperature variation and power management are important considerations.

Working Principle of the AD9288BSTZ-40

The AD9288BSTZ-40 works using a technique called successive approximation, which is based on the binary search algorithm. In essence, the ADC samples the incoming analog signal, then compares it to a reference voltage and creates a digital code that represents the sampled voltage. This process is repeated multiple times until the digital representation of the analog signal is obtained.The first step of the process is the sampling of the analog signal, which is done by a track-and-hold circuit. The track-and-hold circuit is used to freeze the analog signal during the AD conversion. It works by transferring the electric charge to a capacitor, thus storing it for the subsequent steps of the conversion.The second step of the process is the comparison of the analog signal with a programmable reference voltage. This is done using an integrating-type Comparator, which then produces an output based on the comparison.The last step of the process is the generation of the digital code that represents the sampled voltage. This is accomplished using a successive approximation register (SAR), which is a special type of shift register. The SAR works in conjunction with the Comparator to continuously refine and adjust the digital output until the voltage is accurately represented.

Conclusion

The AD9288BSTZ-40 is a high-speed, low-power 8-bit ADC that offers excellent performance and features. It is suitable for a wide variety of applications, including communications systems, industrial controls, automotive systems and home appliances. It also has a wide operating temperature range and low power consumption, making it suitable for applications where temperature variation and power management are important considerations. The ADC works using the successive approximation technique based on the binary search algorithm, which requires the ADC to sample the analog signal, compare it to a programmable reference voltage and generate a digital code that represents the sampled voltage.

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