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Name: AD7731BRU-REEL7
Brand: Analog Devices Inc.
SKU: AD7731BRU-REEL7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Analog Devices Inc. AD7731BRU-REEL7

Part No.:: AD7731BRU-REEL7

Manufacturer:: Analog Devices Inc.

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

Datasheet:: AD7731BRU-REEL7.pdf

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

In Stock:: 3505

Quantity:: Add To Cart

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AD7731BRU-REEL7 Specifications

Packaging:
Tape & Reel (TR)
Series:
-
Product Status:
Obsolete
Number of Bits:
24
Sampling Rate(PerSecond):
6.4k
Number of Inputs:
3, 5
Input Type:
Differential
Data Interface:
SPI, DSP
Configuration:
MUX-PGA-ADC
Ratio-S/H:ADC:
-
Number of A/D Converters:
1
Architecture:
Sigma-Delta
Reference Type:
External
Voltage-Supply Analog:
5V
Voltage-Supply Digital:
5V
Features:
PGA
Operating Temperature:
-40°C ~ 85°C

AD7731BRU-REEL7 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including AD7731BRU-REEL7 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 AD7731BRU-REEL7 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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AD7731BRU-REEL7 information

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AD7731BRU-REEL7 Typical application Circuitry

AD7731BRU-REEL7

The AD7731BRU-REEL7 is a 24-bit, high-performance analog-to-digital converter (ADC) designed for precision measurement applications. Its sigma-delta (Σ-Δ) architecture offers low noise performance and good precision. This ADC is commonly used in industrial process control, weighing scales, and instrumentation systems where precise analog-to-digital conversion is required.

Key Features:

- 24-bit resolution: Provides high accuracy and fine detail in measurements.

- Programmable gain amplifier (PGA): Provides several signal ranges with customizable input sensitivity.

- Flexible input range: Supports bipolar and unipolar input voltage ranges.

- Low noise performance: Ensures accurate and reliable measurements.

- On-chip calibration: Facilitates easy system setup and compensation for external component variations.

Application Scenario: Weighing Scale System

In a weighing scale system, the AD7731BRU-REEL7 can be used to convert the analog output of a load cell (a type of force sensor) into digital data that can be processed to determine the weight of an object.

Circuit Design Details:

1. Power Supply Connections:

- AVDD and DVDD (Pins 11 and 12): Connect to a +5V power supply. These pins provide power to the analog and digital circuits, respectively.

- AGND and DGND (Pins 10 and 13): Connect to the ground. These pins are the analog and digital ground references.

2. Pins 20 and 19 (REFIN+/REFIN-):

- Connect these pins to a precise and consistent reference voltage source (e.g., 2.5V) for the input reference voltage. The reference voltage dictates the full-scale range of the ADC.

3. Connections for Analog Input:

- AIN1+/AIN1- (Pins 22 and 21): Attach the load cell's output to these differential input pins. The differential voltage between these pins will be converted to a digital value by the ADC.

4. Digital Interface:

- SCLK (Pin 4), SDI (Pin 5), SDO (Pin 6), CS (Pin 7): These pins are used for serial communication with a microcontroller or digital processor. SCLK is the serial clock, SDI is the serial data input, SDO is the serial data output, and CS is the chip select (active low).

5. Calibration and Configuration:

- Use the serial interface to configure the AD7731BRU-REEL7 ADC's settings, such as the gain, input range, and filter settings.

- Perform calibration routines to ensure accurate measurements. The AD7731BRU-REEL7 supports system calibration, which can compensate for offset and gain errors in the measurement system.

Design Considerations:

- Power Supply Noise: Ensure that the power supply is stable and free from noise, as this can affect the accuracy of the ADC.

- Load Cell Characteristics: Select a load cell with appropriate sensitivity and accuracy for the desired measurement range.

- PCB Layout: Minimize noise and interference by keeping analog and digital sections separate and using proper grounding techniques.

- Temperature Effects: Consider the temperature coefficient of the load cell and the ADC when designing the system, as temperature variations can impact measurement accuracy.

By carefully considering these factors and following the detailed circuit design, a highly accurate and reliable weighing scale system can be developed using the AD7731BRU-REEL7 ADC.

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6. What is the process for return or replacement of AD7731BRU-REEL7?

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 AD7731BRU-REEL7 we delivered, we will accept the replacement or return of the AD7731BRU-REEL7 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 AD7731BRU-REEL7.

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

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(1)Inform us within 90 days

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