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Name: AD7894ARZ-3REEL7
Brand: Analog Devices Inc.
SKU: AD7894ARZ-3REEL7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Analog Devices Inc. AD7894ARZ-3REEL7

Part No.:: AD7894ARZ-3REEL7

Manufacturer:: Analog Devices Inc.

Package:: 8-SOIC (0.154, 3.90mm Width)

Datasheet:

Description:: IC ADC 14BIT SAR 8SOIC

In Stock:: 3401

Quantity:: Add To Cart

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AD7894ARZ-3REEL7 Specifications

Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
Product Status:
Active
Number of Bits:
14
Sampling Rate(PerSecond):
200k
Number of Inputs:
1
Input Type:
Single Ended
Data Interface:
SPI
Configuration:
S/H-ADC
Ratio-S/H:ADC:
1:1
Number of A/D Converters:
1
Architecture:
SAR
Reference Type:
External
Voltage-Supply Analog:
5V
Voltage-Supply Digital:
5V
Features:
-
Operating Temperature:
-40°C ~ 85°C

AD7894ARZ-3REEL7 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including AD7894ARZ-3REEL7 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 AD7894ARZ-3REEL7 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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AD7894ARZ-3REEL7 information

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AD7894ARZ-3REEL7 Typical application Circuitry

AD7894ARZ-3REEL7

The AD7894ARZ-3REEL7 is a highly efficient 14-bit analog-to-digital converter (ADC) known for its rapid conversion speed and minimal power consumption. Operating with a single 5 V power supply, this ADC incorporates a serial interface for seamless data communication. It stands out for its swift conversion time of 2.3 µs and a throughput rate of 400 kSPS, making it an excellent choice for applications demanding quick and accurate analog-to-digital conversions.

Application Scenario: Industrial Process Control System

In an industrial process control system, the AD7894ARZ-3REEL7 can be employed to convert analog signals from various sensors monitoring parameters such as pressure, flow, and temperature into digital data. This data is crucial for controlling and optimizing industrial processes.

Circuit Design for Process Control System

1. Power Supply Configuration:

- Supply the ADC with a stable 5 V power source connected to the AD7894ARZ-3REEL7 VDD pin (pin 16).

- Install decoupling capacitors (0.1 µF and 10 µF) near the AD7894ARZ-3REEL7 VDD pin to filter out noise and ensure a stable power supply.

2. Reference Voltage Implementation:

- Use a precision 2.5 V reference voltage connected to the REF IN pin (pin 15) to set the ADC's input voltage range.

- Place a 1 µF capacitor between the REF IN pin and ground to reduce fluctuations in the reference voltage.

3. Sensor Signal Integration:

- Connect the analog output of the industrial sensors to the VIN pin (pin 14) through appropriate signal conditioning circuits to match the ADC's input range.

- Implement a low-pass filter between the sensor output and the VIN pin to eliminate high-frequency noise and ensure accurate readings.

4. Digital Communication Setup:

- Establish an SPI interface for communication between the ADC and the microcontroller.

- Wire the SDO pin (pin 1), SCLK pin (pin 2), and CS pin (pin 3) to the corresponding SPI pins on the microcontroller for efficient data transfer.

5. Conversion Control Mechanism:

- Control the CONVST pin (pin 4) with a GPIO pin from the microcontroller to initiate the conversion process.

- Program the microcontroller to trigger ADC conversions at regular intervals, aligning with the desired sampling rate for process monitoring.

Key Design Considerations:

- Signal Integrity: Focus on maintaining signal integrity by using proper shielding and grounding techniques to minimize electromagnetic interference in the sensor signals.

- Sensor Compatibility: Ensure compatibility between the sensors and the ADC by implementing appropriate signal conditioning circuits that scale the sensor output to the ADC's input range.

- Reliability: Prioritize reliability in the circuit design by selecting robust components and implementing fail-safe mechanisms to handle sensor failures or communication errors.

In this application, the AD7894ARZ-3REEL7 ADC plays a critical role in an industrial process control system by providing fast and accurate conversion of sensor signals. By addressing key design considerations such as signal integrity, sensor compatibility, and reliability, designers can create an efficient system for monitoring and controlling industrial processes.

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6. What is the process for return or replacement of AD7894ARZ-3REEL7?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the AD7894ARZ-3REEL7 we delivered, we will accept the replacement or return of the AD7894ARZ-3REEL7 only when all of the below conditions are fulfilled:

(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 AD7894ARZ-3REEL7.

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

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations