AD7871JP-REEL

Number of A/D Converters:	1
Base Part Number:	AD7871
Supplier Device Package:	28-PLCC (11.51x11.51)
Package / Case:	28-LCC (J-Lead)
Operating Temperature:	0°C ~ 70°C
Features:	--
Voltage - Supply, Digital:	±5V
Voltage - Supply, Analog:	±5V
Reference Type:	Internal
Architecture:	SAR
Series:	--
Ratio - S/H:ADC:	0:1
Configuration:	ADC
Data Interface:	Parallel, Serial
Input Type:	Single Ended
Number of Inputs:	1
Sampling Rate (Per Second):	83k
Number of Bits:	14
Part Status:	Obsolete

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Introduction

The AD7871JP-REEL is a data acquisition and analog-to-digital converter (ADC) integrated circuit. It uses a combination of analog and digital circuitry to produce high-resolution, 8-bit digital outputs from analog input signals. The AD7871JP-REEL is ideal for use in a wide range of applications, including medical instrumentation, industrial process control, consumer electronics, and aerospace. Additionally, its small size and low power consumption make it a good choice for battery-powered applications.

AD7871JP-REEL Specifications

The AD7871JP-REEL offers a 0.5V to 4.5V power supply range and is capable of working with a wide range of input modes, including single-ended, differential, and pseudo-differential. The device supports single- and dual-supply operation and contains a low-noise charge pump for adjustable precision. It also offers built-in programmable gain and offset options, allowing it to be tailored to fit specific application needs. The product’s maximum conversion rate is 13MHz, with a maximum sampling frequency of 6.5MHz, and a maximum differential input voltage of 4.5V.

Application Field

Given its specifications, the AD7871JP-REEL is particularly well-suited for applications requiring either low power consumption or low noise performance. It can be used in a variety of data acquisition systems requiring analog-to-digital conversion. It is commonly used in medical instrumentation, industrial process control, consumer electronics, and aerospace applications, where accuracy, speed, and flexibility in signal input mode selection are necessary.

Working Principle

The AD7871JP-REEL can perform up to 8-bit resolution conversions in a single cycle. It uses a combination of analog and digital circuitry to ensure accuracy and high speed performance. First, an individual channel of the device is selected. If the input signal is differential, the reference voltage is then used to subtract from the input signal (usually at a gain of 1). Otherwise, the input signal is passed directly to the ADC. The analog signal is then digitized by a series of comparators and the results are encoded into a digital output.

Conclusion

The AD7871JP-REEL is a powerful, low-power, high-resolution data acquisition and analog-to-digital converter (ADC) integrated circuit. It is ideal for a wide variety of applications, such as medical instrumentation, industrial process control, consumer electronics, and aerospace applications, where accuracy and speed are needed. The product supports single- and dual-supply operations, with a programmable gain and offset options, allowing it to be tailored to fit specific application needs. It uses a combination of analog and digital circuitry to produce 8-bit digital outputs from analog input signals.

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