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Name: AD7091R-4BRUZ-RL7
Brand: Analog Devices Inc.
SKU: AD7091R-4BRUZ-RL7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Analog Devices Inc. AD7091R-4BRUZ-RL7

Part No.:: AD7091R-4BRUZ-RL7

Manufacturer:: Analog Devices Inc.

Package:: 20-TSSOP (0.173, 4.40mm Width)

Datasheet:

Description:: IC ADC 12BIT SAR 20TSSOP

In Stock:: 974

Quantity:: Add To Cart

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AD7091R-4BRUZ-RL7 Specifications

Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
Product Status:
Active
Number of Bits:
12
Sampling Rate(PerSecond):
1M
Number of Inputs:
4
Input Type:
Single Ended
Data Interface:
SPI, DSP
Configuration:
S/H-ADC
Ratio-S/H:ADC:
1:1
Number of A/D Converters:
1
Architecture:
SAR
Reference Type:
Supply
Voltage-Supply Analog:
2.09V ~ 5.25V
Voltage-Supply Digital:
2.09V ~ 5.25V
Features:
-
Operating Temperature:
-40°C ~ 125°C

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AD7091R-4BRUZ-RL7 information

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AD7091R-4BRUZ-RL7 Typical application Circuitry

AD7091R-4BRUZ-RL7

An ultra-low power, 12-bit, 4-channel analog-to-digital converter (ADC) with a high-speed serial interface is called the AD7091R-4BRUZ-RL7.It operates from a single 2.09 V to 5.5 V power supply and features a very low power consumption along with a high throughput rate of 1 MSPS. The device includes an internal 2.5 V reference, though it allows for an external reference to be used for flexibility in various applications.

Application Scenarios

The AD7091R-4BRUZ-RL7 is well-suited for:

- Battery-powered portable devices

- Multi-channel data acquisition systems

- Portable medical devices

- Environmental monitoring systems

Parameter Features

Key features of the AD7091R-4BRUZ-RL7 include:

- 4 multiplexed channels with a 12-bit resolution

- Ultra-low power consumption

- 1 MSPS throughput rate

- Internal 2.5 V reference, with the option to use an external reference

- Single-supply operation from 2.09 V to 5.5 V

Example Application Scenario: Multi-channel Data Acquisition System

Here's a detailed design using the AD7091R-4BRUZ-RL7 in a multi-channel data acquisition system:

Power Supply Connection

Firstly, connect a single 3.3V power supply to the VDD pin (pin 20) of the AD7091R-4BRUZ-RL7. To get the best possible ADC performance, make sure the power supply is clean and steady.

System of Grounding

Attach pin 10 (GND) to the system ground second. Use a low-impedance ground plane for the best noise performance, keeping the digital and analog grounds separate if possible before joining at a single point.

Analog Input Configuration

Thirdly, connect up to four analog input signals to the AIN0 to AIN3 pins (pins 5, 6, 7, and 8, respectively). Use short, direct traces and consider impedance matching if the signal sources are high impedance or located far from the ADC.

Reference Voltage Setup

Fourthly, although the AD7091R-4BRUZ-RL7 includes an internal 2.5 V reference, an external reference can be connected to the REFIN/REFOUT pin (pin 9) for applications requiring specific voltage reference accuracy or range.

Serial Interface Connection

Fifthly, interface the SCLK (Serial Clock, pin 16), SDI (Serial Data Input, pin 15), SDO (Serial Data Output, pin 14), and CS (Chip Select, pin 11) pins to the corresponding SPI interface pins of a microcontroller or DSP. This setup enables communication for configuration and data retrieval.

Conversion Control

Lastly, the CONVST pin (pin 17) triggers the conversion process. It can be driven directly by a microcontroller or through an external timing source to synchronize conversions across multiple devices or systems.

Design Considerations

When integrating the AD7091R-4BRUZ-RL7 into your circuit, consider the following:

- Power Supply Noise: Implement filtering on the power supply line to minimize noise, as ADC performance is sensitive to power supply quality.

- Signal Integrity: Use proper routing techniques to minimize noise coupling into the analog inputs. Keep analog signal paths short and shielded from high-speed digital signals.

- Thermal Management: Even though the AD7091R-4BRUZ-RL7 is a low-power device, consider thermal aspects in the design, especially if enclosed in a small package or operating in a high-temperature environment.

- Reference Voltage Stability: For the highest accuracy, ensure the reference voltage is stable and accurate, especially if using an external reference.

Incorporating the AD7091R-4BRUZ-RL7 in a multi-channel data acquisition system allows for high-speed, precise data collection with minimal power consumption, ideal for portable and battery-powered applications where efficiency is paramount.

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6. What is the process for return or replacement of AD7091R-4BRUZ-RL7?

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 AD7091R-4BRUZ-RL7 we delivered, we will accept the replacement or return of the AD7091R-4BRUZ-RL7 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 AD7091R-4BRUZ-RL7.

(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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