AD7893BR-10

Number of A/D Converters:	1
Base Part Number:	AD7893
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 85°C
Features:	--
Voltage - Supply, Digital:	5V
Voltage - Supply, Analog:	5V
Reference Type:	External
Architecture:	SAR
Series:	--
Ratio - S/H:ADC:	1:1
Configuration:	S/H-ADC
Data Interface:	SPI
Input Type:	Single Ended
Number of Inputs:	1
Sampling Rate (Per Second):	117k
Number of Bits:	12
Part Status:	Obsolete
Packaging:	Tube

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Data Acquisition - Analog to Digital Converters (ADC)Analog-to-digital converters (ADC) are circuits which convert analog signals into digital signals. ADCs are used in a variety of application areas, including telecommunications, audio and video processing, robotics, automotive electronics, and medical imaging. A good example of an ADC is the AD7893BR-10. It is a system-on-chip (SoC) analog to digital converter that provides 12-bit resolution over an input voltage range of 0V to 2.4V. The AD7893BR-10 is designed with a low-power enable pin (ENBL) allowing the user to reduce power consumption when the converter is not being used.ApplicationsDue to its low power consumption, the AD7893BR-10 is well suited for battery-powered applications. It is most commonly used in consumer electronics and telecommunications, where size and power consumption are of paramount importance. This makes it ideal for use in wireless applications, such as Bluetooth and ZigBee, which require small and low-power components.The AD7893BR-10 is also well suited for automotive applications, where it can be used to measure parameters such as vehicle speed, engine temperature, or fuel level. It has been used in a variety of automotive applications—including engine control units, cruise control units, and instrument clusters.The AD7893BR-10 can also be used in medical applications. It is capable of accurately measuring small signals from medical equipment, such as ECG, EMG, and EEG.Working PrincipleThe AD7893BR-10 is based on a successive approximation register (SAR) architecture. This configuration allows for fast conversion speed, low-power operation, and a high degree of accuracy.The SAR works by comparing the input analog voltage to a voltage generated by a reference voltage source. This comparison is done in binary, where the SAR compares the most significant bit (MSB) first, then works its way down to the least significant bit (LSB). If the input voltage is greater than the reference voltage, a ‘1’ is stored in the MSB, and if the input voltage is less than the reference voltage, a ‘0’ is stored in the MSB. The comparison is then repeated on the remaining bits until a complete digital signal is generated.ConclusionAD7893BR-10 is a low power consumption, system-on-chip (SoC) analog-to-digital converter (ADC) with 12-bit resolution over an input voltage range of 0V to 2.4V. It is ideal for use in battery-powered, consumer electronics, and telecommunications applications due to its low-power consumption. The AD7893BR-10 can also be used in automotive and medical applications. It is based on a successive approximation register (SAR) architecture, which allows for fast conversion speed, low-power operation, and a high degree of accuracy.

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