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Name: AD7794CRUZ-REEL
Brand: Analog Devices Inc.
SKU: AD7794CRUZ-REEL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Analog Devices Inc. AD7794CRUZ-REEL

Part No.:: AD7794CRUZ-REEL

Manufacturer:: Analog Devices Inc.

Package:: 24-TSSOP (0.173, 4.40mm Width)

Datasheet:

Description:: IC ADC 24BIT SIGMA-DELTA 24TSSOP

In Stock:: 3645

Quantity:: Add To Cart

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AD7794CRUZ-REEL Specifications

Packaging:
Tape & Reel (TR)
Series:
-
Product Status:
Active
Number of Bits:
24
Sampling Rate(PerSecond):
470
Number of Inputs:
6
Input Type:
Differential
Data Interface:
SPI, DSP
Configuration:
MUX-ADC
Ratio-S/H:ADC:
-
Number of A/D Converters:
1
Architecture:
Sigma-Delta
Reference Type:
External, Internal
Voltage-Supply Analog:
2.7V ~ 5.25V
Voltage-Supply Digital:
2.7V ~ 5.25V
Features:
PGA, Temperature Sensor
Operating Temperature:
-40°C ~ 125°C

AD7794CRUZ-REEL this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including AD7794CRUZ-REEL price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for AD7794CRUZ-REEL to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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AD7794CRUZ-REEL information

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AD7794CRUZ-REEL Typical application Circuitry

A low-power, 24-bit sigma-delta analog-to-digital converter (ADC) intended for high-precision data acquisition applications is the AD7794CRUZ-REEL. It is appropriate for direct sensor interface in multi-sensor systems since it has six fully differential input channels. This ADC is commonly used in industrial process control, medical instrumentation, and environmental monitoring systems due to its high resolution and low power consumption.

Key Specifications

1. Resolution: 24-bit sigma-delta ADC for high-precision measurements.

2. Channels: Six fully differential input channels for versatile sensor interfacing.

3. Data Rate: Programmable data rate up to 470 Hz, accommodating various measurement speeds.

4. Power Supply: Operates from a single 3.3V or 5V supply, compatible with a wide range of systems.

5. Interface: Serial peripheral interface (SPI) for straightforward communication with microcontrollers.

6. Integrated Features: On-chip reference and PGA for enhanced functionality.

Application Scenario: Multi-Channel Environmental Monitoring System

In a multi-channel environmental monitoring system, the AD7794CRUZ-REEL can be used to acquire data from various sensors, such as temperature, humidity, and gas concentration sensors. Its multiple input channels and high resolution make it ideal for capturing detailed environmental data.

Detailed Circuit Connection for Multi-Channel Environmental Monitoring System

1. Power Supply Arrangement: Provide a stable 3.3V or 5V power supply to the VDD pin (pin 24) of the AD7794CRUZ-REEL. Utilize a low-noise linear regulator and place decoupling capacitors near the pin to minimize supply noise, crucial for maintaining the ADC's accuracy.

2. Reference Voltage Setup: Connect a precision external reference voltage source to the REFIN+/REFIN- pins (pins 15 and 16) if higher accuracy is required. Alternatively, use the on-chip 1.17V reference for simplicity. Decoupling capacitors should be added to stabilize the reference voltage.

3. Sensor Integration: Connect the outputs of the sensors to the differential input channels AIN1+/AIN1- through AIN6+/AIN6- (pins 5-10 and 17-22). Use shielded cables for long sensor leads to minimize noise pickup.

4. SPI Communication: Interface the AD7794CRUZ-REEL with a microcontroller using the SPI pins: SCLK (pin 11), DIN (pin 12), DOUT (pin 13), and \CS (pin 14). Keep the SPI bus traces short and away from noisy components to avoid signal corruption.

5. Grounding Scheme: Implement a solid ground plane on the PCB to serve as a common return path for both analog and digital signals. Proper grounding is essential to minimize ground loop areas and reduce ADC performance degradation due to noise.

Design Considerations for Optimal Performance

- Signal Integrity: Employ proper routing and shielding techniques to protect the analog input signals from external noise sources, especially important in environmental monitoring applications.

- Power Management: Utilize the AD7794CRUZ-REEL's power-down modes effectively in battery-powered applications to extend operational life.

- Thermal Management: Make sure that there is enough heat dissipation in the design to avoid overheating and keep the ADC operating steadily.

- PCB Layout: Carefully layout the PCB to separate analog and digital sections, and route digital lines away from analog inputs to prevent digital noise from affecting the ADC's performance.

By incorporating these design elements and connections, the AD7794CRUZ-REEL can be effectively utilized in a multi-channel environmental monitoring system, providing precise and reliable data acquisition for multiple environmental parameters, making it an ideal choice for a wide range of applications requiring detailed environmental data analysis.

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6. What is the process for return or replacement of AD7794CRUZ-REEL?

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(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of AD7794CRUZ-REEL.

(3)The PartNo is unused and only in the original unpacked packaging.

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