AD7703BNZ

Number of A/D Converters:	1
Base Part Number:	AD7703
Supplier Device Package:	20-PDIP
Package / Case:	20-DIP (0.300", 7.62mm)
Operating Temperature:	-40°C ~ 85°C
Features:	--
Voltage - Supply, Digital:	5V
Voltage - Supply, Analog:	5V
Reference Type:	External
Architecture:	Sigma-Delta
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):	4k
Number of Bits:	20
Part Status:	Active
Packaging:	Tube

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Data Acquisition - Analog to Digital Converters (ADC)Analog to Digital Converters, commonly referred to as ADC, are a type of data acquisition devices used to convert an analog signal into a digital representation of that signal. One example of such a device is an AD7703BNZ, a low-power, high-performance, single-supply, 8-bit analog-to-digital converter (ADC). This device can be used for a wide variety of applications, including battery-powered systems, portable medical instrumentation, and instrumentation and process control.When used in a data acquisition system, the AD7703BNZ is typically connected to an analog input device, such as a thermocouple or microphone. When an analog input is applied to the ADC, the device converts that signal into a digital representation of the input. This digital representation is then available for further processing or storage.The AD7703BNZ is available in three versions: single-ended, non-differential, and fully differential input. The single-ended version is the most basic and has the lowest noise immunity. It is suitable for applications that require low noise, such as digital oscilloscopes, but the noise immunity of this version is not suitable for applications that require high dynamic range and high resolution, such as ultrasound or digital video systems.The non-differential version is suitable for high-speed, low-power applications that require low noise, such as digital video systems. It provides better noise immunity than the single-ended version, but with a reduced dynamic range and resolution.The fully differential input version is the most advanced version of the AD7703BNZ and is suitable for applications that require high dynamic range and resolution, such as medical imaging systems and process control systems. This version has the best noise immunity and the highest dynamic range and resolution, but is more expensive than the other versions.The AD7703BNZ\'s dynamic range and resolution depend upon the reference voltage used. The higher the reference voltage, the higher the dynamic range and resolution. The device uses a charge-balanced parallel capacitive transfer process for its conversion scheme, with a typical accuracy of ± 1.5µV. The conversion time of the device is 4µs and is adjustable.The AD7703BNZ operates on a single +3.3V to +5.25V supply, but can be powered down in order to reduce power consumption and extend the battery life. The device also has an on-chip mid-scale voltage reference, eliminating the need for an external reference voltage. The on-chip reference is programmable so that users can customize the reference voltage to their specific application requirements.The AD7703BNZ is housed in an 8-lead, 3mm2 package and is available in both commercial and industrial temperature ranges. The device also features an internal clock source and a Power-On Reset (POR) circuit, which can be used to ensure that the device is in a known state when it is powered up.Overall, the AD7703BNZ is a versatile analog-to-digital converter that is suitable for a wide variety of applications. It has a wide supply range, an adjustable conversion time, a low power consumption, and a high dynamic range and resolution, making it ideal for applications that require a high-performance ADC.

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