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

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Analog Devices Inc. AD7894ARZ-3REEL

Part No.:: AD7894ARZ-3REEL

Manufacturer:: Analog Devices Inc.

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

Datasheet:

Description:: IC ADC 14BIT SAR 8SOIC

In Stock:: 3914

Quantity:: Add To Cart

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AD7894ARZ-3REEL Specifications

Packaging:
Tape & Reel (TR)
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-3REEL this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including AD7894ARZ-3REEL 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-3REEL 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-3REEL information

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AD7894ARZ-3REEL Typical application Circuitry

AD7894ARZ-3REEL

The AD7894ARZ-3REEL is a high-performance 14-bit analog-to-digital converter (ADC) known for its rapid data conversion and low power consumption. Operating with a single 5 V power supply, this ADC features a serial interface for data communication. It is distinguished by its fast conversion time of 2.3 µs and a throughput rate of 400 kSPS, making it suitable for applications that require speedy and precise analog-to-digital conversion.

Application Scenario: Precision Temperature Monitoring System

In a precision temperature monitoring system, the AD7894ARZ-3REEL can be utilized to convert analog signals from high-accuracy temperature sensors into digital data. This is critical in applications such as climate control systems, where precise temperature regulation is necessary.

Circuit Design for Temperature Monitoring System

1. Power Supply Arrangement:

- Connect the AD7894ARZ-3REEL VDD pin (pin 16) to a 5 V regulated power supply, ensuring stable ADC operation.

- Install a 0.1 µF ceramic capacitor and a 10 µF electrolytic capacitor near the AD7894ARZ-3REEL VDD pin for noise suppression and power stability.

2. Reference Voltage Configuration:

- Utilize a precision 2.5 V reference voltage source connected to the REF IN pin (pin 15) to set the input voltage range for the ADC.

- Attach a 1 µF capacitor between the REF IN pin and ground to enhance the stability of the reference voltage.

3. Sensor Signal Integration:

- Interface the analog output of the temperature sensor with the VIN pin (pin 14) through a signal conditioning circuit to match the ADC's input range.

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

4. Digital Interface Setup:

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

- Connect the SDO pin (pin 1), SCLK pin (pin 2), and CS pin (pin 3) to the corresponding SPI pins on the microcontroller for seamless data exchange.

5. Controlled Conversion Process:

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

- Program the microcontroller to trigger ADC conversions at specific intervals, aligning with the desired temperature sampling rate.

Key Design Considerations:

- Signal Accuracy: Prioritize signal accuracy by implementing proper filtering and shielding techniques to minimize noise and interference in the sensor signal.

- Power Management: Optimize power consumption by using low-power components and implementing power-saving modes in the microcontroller, especially important in battery-powered systems.

- Thermal Stability: Ensure thermal stability in the circuit design to prevent temperature drift in the ADC and reference voltage, which could impact measurement accuracy.

In this application, the AD7894ARZ-3REEL ADC is integral to a precision temperature monitoring system, providing accurate and fast conversion of temperature sensor signals. By focusing on key design considerations such as signal accuracy, power management, and thermal stability, designers can create an effective system for precise climate control and monitoring.

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

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-3REEL we delivered, we will accept the replacement or return of the AD7894ARZ-3REEL 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-3REEL.

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

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(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations