AD7890AN-10

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Type:	Data Acquisition System (DAS)
Number of Channels:	8
Resolution (Bits):	12 b
Sampling Rate (Per Second):	117k
Data Interface:	SPI
Voltage Supply Source:	Single Supply
Voltage - Supply:	5V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Through Hole
Package / Case:	24-DIP (0.300", 7.62mm)
Supplier Device Package:	24-PDIP
Base Part Number:	AD7890

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AD7890AN-10 Application Field and Working Principle The AD7890AN-10 is a precision monolithic CMOS analog-to-digital converter (ADC) designed for hand-held and other low-power portable metering instruments. It is manufactured using low-voltage CMOS technology, ensuring an extremely low power dissipation and a wide dynamic range.The converter uses a successive approximation register (SAR) method with a 10-bit resolution. An internal voltage reference buffers the reference voltage, and an external reference voltage can be buffered. The low duty cycle of the internal clock ensures a low power dissipation and improved noise immunity.The converter includes a self-clocking unit that can be used to generate an internal sample clock. The self-clocking unit is programmable for maximum conversion rate. An input clock can also be transmitted via a clock-in pin on the chip.The clock-sampling capability of the AD7890AN-10 ensures continuous data acquisition. Other special features include logic-level input shift register clock control and extended range input.The AD7890AN-10 offers superior performance with its 10-bit resolution and a low-voltage CMOS technology. The low duty cycle of the internal clock and wide dynamic range ensure robustness, fast conversion, and high resolution. The self-clocking unit can be operated at the full 10-bit resolution or higher.The AD7890AN-10 is well-suited for a variety of applications, including hand-held and mobile instrumentation, portable medical instruments, and medical diagnostic equipment. It is also suitable for use in audio and video measurement systems, such as audiometers and oscilloscopes.In terms of operation, the AD7890AN-10 offers an integrated, wide range of digital-to-analog and analog-to-digital conversion with an exceptionally low power dissipation and low-voltage CMOS technology. The SAR architecture lets the converter accurately and quickly sample and convert analog signals into digital data. The built-in logic-level input shift register clock control and extended range input capabilities allow multiple conversion rates with varying word lengths.In conclusion, the AD7890AN-10 is a comprehensive and versatile analog-to-digital converter ideal for use in low-power portable instruments and various measurement systems. Its low-voltage CMOS technology, 10-bit resolution, and self-clocking unit provide superior performance and accuracy.

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