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Name: AD7821KRZ
Brand: Analog Devices Inc.
SKU: AD7821KRZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Analog Devices Inc. AD7821KRZ

Part No.:: AD7821KRZ

Manufacturer:: Analog Devices Inc.

Package:: 20-SOIC (0.295, 7.50mm Width)

Datasheet:: AD7821KRZ.pdf

Description:: IC ADC 8BIT PIPELINED 20SOIC

In Stock:: 3758

Quantity:: Add To Cart

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AD7821KRZ Specifications

Packaging:
Bulk,Tube
Series:
-
Product Status:
Active
Number of Bits:
8
Sampling Rate(PerSecond):
1M
Number of Inputs:
1
Input Type:
Single Ended
Data Interface:
Parallel
Configuration:
S/H-ADC
Ratio-S/H:ADC:
1:1
Number of A/D Converters:
1
Architecture:
Pipelined
Reference Type:
External
Voltage-Supply Analog:
5V
Voltage-Supply Digital:
5V
Features:
-
Operating Temperature:
-40°C ~ 85°C

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AD7821KRZ information

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AD7821KRZ Typical application Circuitry

AD7821KRZ

A high-performance, 8-bit analog-to-digital converter (ADC) capable of up to 2 MSPS (Mega Samples Per Second) sampling rate is the AD7821KRZ. It is intended for use in applications like digital oscilloscopes, data acquisition systems, and communication systems that demand quick data conversion and acquisition.

Application Situations:

1. Oscilloscopes digital: The AD7821KRZ is used in oscilloscopes to quickly transform analog signals into digital format for analysis and display.

2. Data Acquisition Systems: It is employed in data acquisition systems for fast sampling of analog signals in scientific and industrial applications.

3. Communication Systems: In communication systems, the AD7821KRZ is used for digitizing analog signals in modems and signal processing units.

Parameter Features:

- High-Speed Conversion: With a conversion rate of up to 2 MSPS, it is suitable for high-speed applications.

- 8-Bit Resolution: Offers 8-bit resolution, providing a balance between speed and accuracy.

- Single Supply Operation: Operates from a single 5V power supply, simplifying power management.

- Low Power Consumption: Because of its low power consumption, it is appropriate for battery-operated and portable devices.

Data Acquisition System as an Example of Circuit Design

In this example, we'll design a circuit using the AD7821KRZ for a data acquisition system that samples and digitizes analog signals.

1. Analog Input Connection: Connect the Analog Signal: Connect the analog signal to be sampled to the IN pin of the AD7821KRZ.

2. Clock Source: Provide a Clock Signal: Connect a clock signal with a frequency up to 20 MHz to the CLK pin to control the sampling rate.

3. Digital Output Interface: Connect to a Microcontroller: Connect the D0-D7 pins (digital output pins) of the AD7821KRZ to the input pins of a microcontroller or digital processor for data processing.

4. Power Supply Decoupling: Decouple the Power Supply: Place a 0.1µF ceramic capacitor between the VDD and GND pins to filter out noise from the power supply.

5. Grounding: Ensure Proper Grounding: Connect the GND pin to a clean and stable ground point to minimize noise and ensure accurate conversions.

6. Reference Voltage: Set the Reference Voltage: Connect a stable reference voltage to the VREF pin to set the full-scale range of the ADC.

Design Considerations:

- Sampling Rate: Ensure that the clock frequency is suitable for the desired sampling rate and does not exceed the maximum limit of the ADC.

- Signal Integrity: To preserve conversion accuracy, reduce noise and interference in the analog signal stream.

- Power Supply Stability: To avoid oscillations that can impair the ADC's performance, use a steady and noise-free power supply.

- Temperature Effects: Consider the temperature dependence of the ADC and ensure that the operating conditions are within the specified range.

By carefully designing the circuit and considering these factors, the AD7821KRZ can be effectively used in a data acquisition system for fast and accurate sampling of analog signals.

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6. What is the process for return or replacement of AD7821KRZ?

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 AD7821KRZ we delivered, we will accept the replacement or return of the AD7821KRZ 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 AD7821KRZ.

(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