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Name: AD7865ASZ-1REEL
Brand: Analog Devices Inc.
SKU: AD7865ASZ-1REEL
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. AD7865ASZ-1REEL

Part No.:: AD7865ASZ-1REEL

Manufacturer:: Analog Devices Inc.

Package:: 44-QFP

Datasheet:: AD7865ASZ-1REEL.pdf

Description:: IC ADC 14BIT SAR 44MQFP

In Stock:: 3487

Quantity:: Add To Cart

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AD7865ASZ-1REEL Specifications

Packaging:
Tape & Reel (TR),Bulk
Series:
-
Product Status:
Active
Number of Bits:
14
Sampling Rate(PerSecond):
350k
Number of Inputs:
4
Input Type:
Single Ended
Data Interface:
Parallel
Configuration:
S/H-MUX-ADC
Ratio-S/H:ADC:
4:1
Number of A/D Converters:
1
Architecture:
SAR
Reference Type:
External, Internal
Voltage-Supply Analog:
5V
Voltage-Supply Digital:
5V
Features:
Simultaneous Sampling
Operating Temperature:
-40°C ~ 85°C

AD7865ASZ-1REEL this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including AD7865ASZ-1REEL 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 AD7865ASZ-1REEL 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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AD7865ASZ-1REEL information

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AD7865ASZ-1REEL Typical application Circuitry

AD7865ASZ-1REEL

The AD7865ASZ-1REEL is a high-speed, 4-channel, 14-bit analog-to-digital converter (ADC) optimized for applications where space and power efficiency are crucial.

Application Scenarios

The AD7865ASZ-1REEL is particularly useful in:

- Multichannel data acquisition systems for monitoring various physical parameters (temperature, pressure, etc.)

- Process control in industrial automation

- Portable medical diagnostic equipment for multi-sensor data logging

- Mixed-signal processing in digital signal processing (DSP) systems

Parameter Features

Key features of the AD7865ASZ-1REEL include:

- Four fully differential input channels with dedicated sample-and-hold amplifiers

- 14-bit resolution with high-speed performance

- Single 5V power supply operation with low power consumption

- Integrated 2.5V reference, simplifying the design

- Serial interface for simplified connection to DSPs or microcontrollers

Example Application Scenario: Portable Data Acquisition System

Here's a detailed design using the AD7865ASZ-1REEL in a portable data acquisition system:

Power Supply and Grounding

Firstly, connect the 5V power supply to the VDD pin (pin 24) of the AD7865ASZ-1REEL. Ground connections should be made to AGND (pin 12) for analog ground and DGND (pin 13) for digital ground to ensure clean signal processing and conversion.

Analog Inputs Connection

Secondly, connect sensors or signal sources to the four analog input channels, IN0 to IN3 (pins 1, 5, 2, and 6, respectively). It's essential to use shielded cables and keep the signal paths as short as possible to reduce noise and interference.

Reference Voltage Setup

Thirdly, while the AD7865ASZ-1REEL includes an internal 2.5V reference (REFIN/REFOUT, pin 23), external precision references can be used for applications requiring higher accuracy. Ensure that any external reference does not exceed the maximum input voltage for the ADC.

Digital Interface Configuration

Fourthly, interface the serial output pins (SDO_A, SDO_B, SDO_C, SDO_D, pins 18-21) to the input pins of a microcontroller or DSP. Control the ADC using the CS (Chip Select, pin 9), RD (Read, pin 22), and WR (Write, pin 7) pins, which synchronize data acquisition with the processing unit.

Clock Source

Lastly, provide a stable clock signal to CLK IN (pin 8) to drive the ADC's internal timing. The clock frequency affects the conversion rate and overall system performance, so choose it according to the specific application needs.

Design Considerations

When designing circuits with the AD7865ASZ-1REEL, several factors must be considered:

- Power Supply Quality: Use a stable and clean power source to minimize noise in the ADC conversions.

- Signal Integrity: Pay attention to the layout to minimize the length of analog signal paths and separate them from digital paths to prevent interference.

- Thermal Management: Even though the AD7865ASZ-1REEL is low power, ensuring adequate ventilation or heat sinking in compact designs is essential.

- Clock Stability: The quality of the clock signal directly impacts the accuracy and consistency of ADC conversions. Use a low-jitter clock source.

Incorporating the AD7865ASZ-1REEL into a portable data acquisition system with careful consideration of these design principles can achieve high-precision, multi-channel analog-to-digital conversion in a compact and efficient manner, suitable for a wide array of monitoring and control applications.

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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.

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