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Name: AD8611ARZ-REEL7
Brand: Analog Devices Inc.
SKU: AD8611ARZ-REEL7
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. AD8611ARZ-REEL7

Part No.:: AD8611ARZ-REEL7

Manufacturer:: Analog Devices Inc.

Package:: 8-SOIC (0.154, 3.90mm Width)

Datasheet:: AD8611ARZ-REEL7.pdf

Description:: IC COMP SGL 4NS ULTRFAST 8SOIC

In Stock:: 2748

Quantity:: Add To Cart

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AD8611ARZ-REEL7 Typical application Circuitry

AD8611ARZ-REEL7

The AD8611ARZ-REEL7 is a variant of the AD8611 precision comparator, supplied in a 7-inch reel format for automated manufacturing, making it highly suitable for large-volume production.

Application Scenarios

An exemplary application for the AD8611ARZ-REEL7 is in pulse width modulation (PWM) signal generation for motor control systems. In such applications, the comparator's ability to quickly and accurately compare signal voltages is crucial for generating precise PWM signals that control motor speed and direction.

Parameter Features

- Supply Voltage Range: Supports a wide range from 2.5V to 5.5V, accommodating various power environments.

- Fast Propagation Delay: This is essential for high-speed applications as it guarantees a quick reaction to input changes.

- Rail-to-Rail Output: Facilitates easy interfacing with other digital logic components by allowing the output to swing close to the supply rails.

- Low Power Consumption: Ideal for power-sensitive applications, contributing to overall energy efficiency.

Detailed Circuit Connection in PWM Signal Generation

Implementing the AD8611ARZ-REEL7 within a PWM signal generation circuit for motor control involves specific considerations:

1. Power Supply Integration: Connect the V+ pin (pin 8) to a suitable power source within the 2.5V to 5.5V range, and connect the V− pin (pin 4) to ground. To provide a steady power supply and reduce noise, decoupling capacitors must to be positioned in close proximity to these pins.

2. Input Signal Configuration: The non-inverting input (pin 3) is connected to the variable voltage signal that represents the desired PWM duty cycle. A sensor that is keeping an eye on the motor's load or a microcontroller can both produce this signal.

3. Reference Voltage Setup: The inverting input (pin 2) receives a stable reference voltage that sets the threshold for the PWM signal generation. This reference can be derived from a voltage divider or a precision reference source, depending on the required accuracy.

4. Output Connection: The output (pin 1) of the AD8611ARZ-REEL7 directly drives the gate of a MOSFET or another switching device that controls the motor. A series resistor might be necessary to limit the current into the gate and protect the comparator.

Circuit Design Considerations

When designing circuits with the AD8611ARZ-REEL7, several key factors must be carefully managed:

- Minimize Layout Noise: Careful PCB layout to minimize noise pickup in the comparator's inputs and supply lines is crucial, as noise can affect the precision of PWM signal generation.

- Input Protection: Consider implementing input protection strategies for the comparator to safeguard against overvoltage and ESD events, enhancing the system's reliability.

- Thermal Management: While the AD8611ARZ-REEL7 is low power, the overall circuit design should consider thermal performance, especially when driving high-power loads.

- Interfacing with Digital Systems: Ensure that the rail-to-rail output of the comparator is compatible with the input requirements of any subsequent digital logic or power control devices.

By adhering to these guidelines and effectively leveraging the AD8611ARZ-REEL7 in a PWM signal generation circuit, designers can achieve precise control over motor operations, enhancing efficiency and performance in motor control applications.

AD8611ARZ-REEL7 information

AD8611ARZ-REEL7 Specifications

Package/Case:
8-SOIC (0.154, 3.90mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
Type:
with Latch
NumberofElements:
1
OutputType:
Complementary, TTL
Voltage-SupplySingle/Dual(±):
3V ~ 5V
Voltage-InputOffset(Max):
7mV @ 5V
Current-InputBias(Max):
6µA @ 5V
Current-Output(Typ):
-
Current-Quiescent(Max):
10mA, 4mA
CMRRPSRR(Typ):
85dB CMRR, 73dB PSRR
PropagationDelay(Max):
5.5ns
Hysteresis:
-
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

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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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