AD7865BSZ-3REEL Integrated Circuits (ICs)

Number of A/D Converters:	1
Base Part Number:	AD7865
Supplier Device Package:	44-MQFP (10x10)
Package / Case:	44-QFP
Operating Temperature:	-40°C ~ 85°C
Features:	Simultaneous Sampling
Voltage - Supply, Digital:	5V
Voltage - Supply, Analog:	5V
Reference Type:	External, Internal
Architecture:	SAR
Series:	--
Ratio - S/H:ADC:	4:1
Configuration:	S/H-MUX-ADC
Data Interface:	Parallel
Input Type:	Single Ended
Number of Inputs:	4
Sampling Rate (Per Second):	350k
Number of Bits:	14
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Data Acquisition - Analog to Digital Converters (ADC)

Analog to Digital Converters (ADCs) are devices that convert analog signals to digital signals. ADCs are used in a variety of industries including communications, aerospace, automotive, and medical. The AD7865BSZ-3REEL is a high-integrity, 8-bit, Analog to Digital Converter (ADC), offering exceptional performance characteristics in a compact LQFP-48 package. It features single-ended inputs, a voltage reference, an internal clock, an SPI-compatible serial interface and a selectable 16x or 32x over-sampling rate.

Application Field

The AD7865BSZ-3REEL is suitable for applications involving analog-to-digital conversion of various signals including thermocouples, temperature sensors, industrial process control meters, current loop measuring equipment, strain gauges, and signals generated by load cells. It is especially useful in applications that require high accuracy, such as medical and industrial process control systems.

Working Principle

The AD7865BSZ-3REEL works by converting the analog signal voltage to digital binary code. It uses an 8-bit A/D converter with a selectable 16x or 32x oversampling rate. The ADC has a built in 4 MHz clock, a selectable internal voltage reference, and a single-ended input. The output of the ADC is an 8-bit code and can be read by the host via an SPI-compatible serial interface. The ADC has eight bits of resolution, meaning it can detect and convert voltage levels in 256 steps. The ADC takes in an analog signal, converts it seven times to represent 256 equal voltage step levels. The ADC then returns the corresponding 8-bit binary code representing the exact voltage level of the analog signal.The AD7865BSZ-3REEL has a range of features that make it suited for applications requiring high accuracy, such as medical and industrial process control. These features include an internal or external voltage reference, a selectable clock, and a single-ended input. The AD7865BSZ-3REEL also has a temperature range that covers −40°C to +125°C and a high-integrity architecture that significantly reduces noise and clock jitter effects. All of these features make it suitable for a wide range of applications.

Conclusion

The AD7865BSZ-3REEL is a high-integrity, 8-bit, analog to digital converter with a wide range of uses including thermocouple, temperature sensors, strain gauges, and current loop measuring equipment. With features such as a selectable 16x or 32x over-sampling rate, a selectable internal or external voltage reference, and a high-integrity architecture, the AD7865BSZ-3REEL is an excellent choice for applications requiring high accuracy.

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