AD7195BCPZ-RL7

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Number of Bits:	24
Number of Channels:	1
Voltage - Supply, Analog:	5V
Voltage - Supply, Digital:	2.7 V ~ 5.25 V
Package / Case:	32-VFQFN Exposed Pad, CSP
Supplier Device Package:	32-LFCSP-LQ (5x5)
Base Part Number:	AD7195

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Introduction

The AD7195BCPZ-RL7 is an Analog Front End (AFE) for data acquisition applications, manufactured by Analog Devices Inc. This high-precision AFE is designed for a wide range of data acquisition applications, including in-line process control, biomedical instrumentation, and test and measurement. It combines high resolution and low noise performance into a single, low-power integrated circuit solution. The AD7195BCPZ-RL7 uses a delta-sigma analog-to-digital converter (ADC) based on a 24-bit oversampled architecture to achieve a high resolution of 25ppm. The device also features a low-noise programmable gain amplifier, temperature sensor, and reference circuit, which all work together to provide a complete system solution.

Overview

The AD7195BCPZ-RL7 provides an ultra-high accuracy analog-to-digital conversion solution, with a maximum differential non-linearity (DNL) of ±0.05LSB and low power consumption. Depending on the application, the AD7195BCPZ-RL7 is capable of processing signals from one to three channels and is suitable for a wide range of applications. The device allows for flexible and low-noise signal conditioning, programmable gain settings, anti-aliasing filters and power supply switching. It also features an integrated voltage reference and temperature sensor, providing an extra level of performance and accuracy. Additionally, the use of a low-power design makes the AD7195BCPZ-RL7 suitable for portable devices or battery powered applications.In terms of its digital logic interface, the AD7195BCPZ-RL7 features an SPI or I2C protocol and an integrated 24-bit interface, allowing for simple and straightforward connection to a host processor. Furthermore, the device\'s integrated voltage reference allows for improved accuracy over temperature variations and eliminates drift associated with external voltage references. Finally, the AD7195BCPZ-RL7 is compliant with the RoHS Standard and is fully specified for operation from -40ºC to +85ºC.

Application Field

The AD7195BCPZ-RL7 is suitable for a wide spectrum of data acquisition applications such as in-line process control, biomedical instrumentation, and test and measurement. It is ideal for use in applications that require low-noise and high accuracy, such as medical and laboratory instruments, automotive systems, and industrial process control. The AD7195BCPZ-RL7 offers excellent performance for temperature sensing and control in applications ranging from automotive and medical to industrial. Its 24-bit oversampled architecture, combined with its low-power design and flexibility, makes it the perfect choice for such demanding applications. It is also suitable for low-cost industrial position sensing applications, allowing users to measure small and accurate movements in angular or linear position.Furthermore, the AD7195BCPZ-RL7 is capable of providing accurate digital outputs in different measurement ranges and resolutions, which makes it suitable for use in diverse industrial test and measurement applications. Additionally, its digital logic interface and onboard temperature sensor make it an ideal choice for system monitoring, allowing users to track changes in temperature or other environmental variables in real-time. Finally, due to its low power consumption and wide operating temperature range, the AD7195BCPZ-RL7 is suitable for use in portable, battery powered applications.

Working Principle

The AD7195BCPZ-RL7 works by combining the processes of analog signal conditioning and digital data conversion into a single, low-power integrated circuit solution. In the analog domain, it uses a programmable gain amplifier, active low-pass filter, and bias current injection to achieve higher resolution and lower noise performance, while simultaneously providing the input signal with proper impedance matching.For digital conversion, the device uses a 24-bit oversampled architecture, which allows for two steps of data conversion. The first stage is a low-resolution single-bit modulator which reduces the signal’s noise, followed by a 24-bit ADC which gives the device its high-resolution performance. An integrated temperature sensor allows for accurate and repeatable performance over a wide temperature range.Finally, the AD7195BCPZ-RL7 uses a digital logic interface, such as SPI or I2C protocol, to connect to a host processor. This allows for simple control and communication with the device, mechanism which also allows for data conversion to start only when a valid signal is present.

Conclusion

The AD7195BCPZ-RL7 is an Analog Front End (AFE) for data acquisition applications, manufactured by Analog Devices Inc. The device is designed for a wide range of data acquisition applications, including in-line process control, biomedical instrumentation, and test and measurement. It features an integrated 24-bit ADC and low-power design, allowing for the combination of high accuracy with low power consumption. The AD7195BCPZ-RL7 is suitable for a wide range of applications requiring low-noise, high accuracy, and flexibility. In terms of its digital logic interface, the device offers an SPI or I2C protocol and an integrated 24-bit interface for simple connection to a host processor.

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