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Analog Devices Inc. AD7982BRMZ

Part No.:: AD7982BRMZ

Manufacturer:: Analog Devices Inc.

Package:: 10-TFSOP, 10-MSOP (0.118, 3.00mm Width)

Datasheet:

Description:: IC ADC 18BIT SAR 10MSOP

In Stock:: 3886

Quantity:: Add To Cart

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AD7982BRMZ Specifications

Packaging:
Bulk,Tube
Series:
PulSAR®
Product Status:
Active
Number of Bits:
18
Sampling Rate(PerSecond):
1M
Number of Inputs:
1
Input Type:
Differential
Data Interface:
SPI, DSP
Configuration:
S/H-ADC
Ratio-S/H:ADC:
1:1
Number of A/D Converters:
1
Architecture:
SAR
Reference Type:
External
Voltage-Supply Analog:
2.375V ~ 2.625V
Voltage-Supply Digital:
2.375V ~ 2.625V
Features:
-
Operating Temperature:
-40°C ~ 85°C

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AD7982BRMZ information

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AD7982BRMZ Typical application Circuitry

AD7982BRMZ

The AD7982BRMZ is a prominent figure within the AD7982 series, a line of precision 18-bit PulSAR® analog-to-digital converters (ADCs) developed by Analog Devices. This series is celebrated for its exceptional accuracy, low power consumption, and compact form factor, making it ideally suited for battery-powered devices, medical instruments, and high-precision measurement systems. The "BRMZ" suffix indicates the package type – a 10-lead MSOP (Mini Small Outline Package) – which is designed for space-efficient applications without compromising on performance.

1. Introduction to the AD7982 Series: The AD7982BRMZ is engineered to provide high-speed, high-accuracy data conversion by leveraging Analog Devices' PulSAR architecture. This ADC is capable of sampling rates up to 1 MSPS, offering a blend of speed and precision that is vital for applications requiring rapid and accurate data acquisition, such as instrumentation and control systems.

2. Pin Configuration and Circuit Connection Essentials: The AD7982BRMZ incorporates several critical pins that must be precisely managed to fully exploit its capabilities. These include the analog input (AIN), the supply voltage (VDD), the reference voltage input (REF), and the serial interface pins (SDI, SCK, SDO, CNV, and GND). A typical circuit connection would involve connecting the AIN pin to the signal source you wish to measure, ensuring that the signal falls within the ADC's input range. The VDD pin must be supplied with a stable voltage within the ADC's specified range, typically 2.5V to 5.5V, to power the device. The REF pin requires a precise reference voltage, which defines the full-scale range of the ADC. The serial interface pins facilitate communication with a microcontroller or digital signal processor, with SDI serving as the serial data input, SCK as the serial clock, SDO as the serial data output, and CNV as the convert start signal.

3. Power Supply Integration: The AD7982BRMZ's performance is significantly influenced by the stability of its power supply (VDD) and reference voltage (REF). Employing decoupling capacitors close to these pins is essential for minimizing noise and ensuring the accuracy of the ADC's conversions. A low-noise, stable power supply enhances the AD7982BRMZ's ability to perform precise measurements.

4. Reference Voltage Configuration: Setting up the REF pin correctly is crucial for the AD7982BRMZ, as this voltage directly impacts the converter's accuracy and dynamic range. The choice of reference voltage should align with the specific requirements of the application, providing a balance between the maximum input signal amplitude and the desired resolution.

5. Serial Interface Management: The AD7982BRMZ's serial interface requires careful attention to timing and protocol specifications. The CNV pin initiates the conversion process when pulsed, while the SCK pin drives the serial clock, controlling data transfer timings. Data is read from or written to the ADC via the SDO and SDI pins, respectively, according to the timing diagrams specified in the datasheet. Proper synchronization between these pins and the host controller is vital for accurate data retrieval.

In essence, the AD7982BRMZ exemplifies a high-performance ADC solution, blending speed, precision, and low power consumption. By meticulously managing the power supply connections, analog input signal conditioning, reference voltage setup, and serial communication protocols, designers can leverage the AD7982BRMZ to achieve superior data acquisition performance in a wide array of applications. This ADC not only facilitates precise and rapid measurements but also integrates seamlessly into compact, power-sensitive designs, making it a cornerstone component in advanced electronic systems.

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6. What is the process for return or replacement of AD7982BRMZ?

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 AD7982BRMZ we delivered, we will accept the replacement or return of the AD7982BRMZ 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 AD7982BRMZ.

(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