AD7718BR

500 INR

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Product Details:

Product Type Analog Front-End, 16-Bit Sigma-Delta ADC
Application Data Acquisition Systems, Industrial Process Control, Instrumentation
Supply Voltage 2.7 V to 5.25 V
Dissipation Power 450 mW (typical)
Operating Temperature -40C to +85C
Power Consumption 3.3 mW (typical at VDD = 3V, 1 kSPS)
Temperature Range -40C to +85C
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Product Description

AD7718BR Price And Quantity

Minimum Order Quantity 10 Piece
Price 500 INR

AD7718BR Product Specifications

Product Type Analog Front-End, 16-Bit Sigma-Delta ADC
Supply Voltage 2.7 V to 5.25 V
Weight Approx. 0.2g
Dissipation Power 450 mW (typical)
Input Voltage 0 V to VDD
Operating Temperature -40C to +85C
Size SSOP-24 Package
Power Consumption 3.3 mW (typical at VDD = 3V, 1 kSPS)
Application Data Acquisition Systems, Industrial Process Control, Instrumentation
Voltage Regulator Type Internal Reference
Temperature Range -40C to +85C

AD7718BR Trade Information

Main Domestic Market All India

Product Description

Specification

Architecture	Sigma-Delta
Voltage Supply Digital	2.7 V ~ 3.6 V, 5V
Supplier Device Package	28-SOIC
Sampling Rate	1.37k (Per Second)
Reference Type	External
Part Status	Active
Packaging	Tube
Package Case	28-SOIC (0.295&amp;quot;, 7.50mm Width)
Operating Temperature	-40 deg C ~ 85 deg C
Number of Inputs	4/5, 8/10
Number of Bits	24
Number of AD Converters	1
Input Type	Differential, Pseudo-Differential
Features	PGA
Data Interface	SPI, DSP
Configuration	MUX-PGA-ADC
Base Part Number	AD7718

High Accuracy and Flexibility for Industrial Applications

The AD7718BR ADC delivers precision analog-to-digital conversion for data acquisition and industrial control. Its sigma-delta architecture ensures excellent noise performance, while programmable gain (1128) allows adaptation to various signal levels. The built-in 2.5V reference and SPI-compatible interface make this device particularly suitable for industrial, instrumentation, and laboratory environments.

Robust Design with Versatile Connectivity

With support for 4 differential or 8 single-ended inputs and an input impedance greater than 10 M, the AD7718BR offers substantial flexibility for system integrators. The device includes ESD protection (2 kV human body model), selectable internal/external clock options, and can be supplied by single or dual voltages, meeting diverse power and design requirements.

FAQs of AD7718BR:

Q: How can I interface the AD7718BR with a microcontroller?

A: The AD7718BR features a SPI-compatible (3-wire/4-wire) serial interface, allowing straightforward connection with most microcontrollers. Refer to the product datasheet for timing diagrams and configuration details to ensure reliable communication.

Q: What makes the AD7718BR suitable for precision measurement applications?

A: The AD7718BR offers 16-bit resolution, a 2.5V precision on-chip reference, very high input impedance (>10 M), and a minimum common-mode rejection ratio of 120 dB, all of which contribute to highly accurate and stable measurements in demanding environments.

Q: Where can I purchase the AD7718BR in India?

A: The AD7718BR is available through authorized distributors, importers, manufacturers, suppliers, traders, and wholesalers across India. Check leading electronic component distributors or contact the manufacturers authorized partners to ensure genuine supply.

Q: What are the benefits of the programmable gain feature of the AD7718BR?

A: The programmable gain (selectable from 1 to 128) allows users to optimize the input range for a variety of sensor outputs, maximizing the effective resolution and minimizing noise for different sources, which broadens the modules application scope.

Q: When should I use single-ended versus differential input modes with this ADC?

A: Use single-ended mode when measuring signals referenced to ground, and differential mode for signals where accurate measurement of small voltage differences is critical or when common-mode noise rejection is required. The AD7718BR can switch between these configurations depending on system requirements.

Q: What is the process for setting up the internal voltage reference?

A: The AD7718BR is equipped with an integrated 2.5V precision reference, which can be enabled or disabled via configuration registers. This simplifies the power supply design and enhances measurement stability, while also permitting use of an external reference if needed.

Q: How does the on-chip clock oscillator benefit my design?

A: The on-chip oscillator eliminates the need for an external clock source, reducing component count and simplifying the hardware design. If precise timing control is required, the AD7718BR can also accept an external clock input.

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