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Name: AD620BR
Brand: Analog Devices Inc.
SKU: AD620BR
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. AD620BR

Part No.:: AD620BR

Manufacturer:: Analog Devices Inc.

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

Datasheet:

Description:: IC INST AMP 1 CIRCUIT 8SOIC

In Stock:: 2236

Quantity:: Add To Cart

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AD620BR Specifications

Package/Case:
8-SOIC (0.154, 3.90mm Width)
Packaging:
Bulk,Tube
Series:
-
ProductStatus:
Obsolete
AmplifierType:
Instrumentation
NumberofCircuits:
1
OutputType:
-
SlewRate:
1.2V/µs
GainBandwidthProduct:
-
-3dbBandwidth:
1 MHz
Current-InputBias:
500 pA
Voltage-InputOffset:
15 µV
Current-Supply:
900µA
Current-Output/Channel:
18 mA
Voltage-SupplySpan(Min):
4.6 V
Voltage-SupplySpan(Max):
36 V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

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AD620BR information

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AD620BR Typical application Circuitry

AD620BR

The AD620BR is a low-cost, high-precision instrumentation amplifier that is well-suited for applications requiring a wide input voltage range and low power consumption. It is designed to offer excellent accuracy with a minimal external part count, making it ideal for medical instrumentation, industrial process controls, and battery-powered applications.

Application Scenarios

AD620BR is particularly effective in electrocardiogram (ECG) signal amplification, where accurate and stable signal processing is essential for monitoring heart activity.

Characteristics of the Parameter

The following are some of the main characteristics of the AD620BR:

- Low Power Consumption: This attribute qualifies it for use in portable device applications.

- Wide Power Supply Range: Ensures flexibility across a variety of application voltages.

- Selectable Gain with a Single Resistor: Allows for easy adjustment of the amplification factor to suit specific application needs.

- High Input Impedance: Prevents signal source loading, maintaining signal integrity.

Specific Circuit Connection - ECG Signal Amplification

For implementing AD620BR in an ECG signal amplification circuit, consider the following detailed connections:

- Power Supply Connection: Connect the positive supply voltage to pin 7 (+Vs) and the negative supply voltage to pin 4 (−Vs) of the AD620BR. This amplifier's ability to operate over a wide range of power supplies adds to its versatility in different environments.

- Gain Configuration: By connecting a resistor (Rg) between pins 1 and 8, the AD620BR's gain can be changed. The resistance of this component establishes the gain based on the particular demands of the amplitude of the ECG signal.

- Input Signals: The ECG signal should be connected to pins 2 (−IN) and 3 (+IN). This differential input setup is crucial for reducing common-mode noise and enhancing the quality of the ECG signal amplification.

- Output Signal: Pin 6 (OUT) provides access to the amplified ECG signal. This output can then be fed into further signal processing units or an analog-to-digital converter for analysis and display.

Design Considerations

When designing with AD620BR, several factors need to be addressed:

- Noise Minimization: It's essential to implement strategies for reducing noise, such as using shielded cables for signal connections and proper PCB layout practices to minimize interference.

- Power Supply Stability: For applications demanding high precision, like ECG monitoring, the stability of the power supply is critical. To reduce voltage swings, use decoupling capacitors close to the power supply pins.

- Precision in Gain Setting: The accuracy of the gain-setting resistor (Rg) significantly impacts the overall performance. Using precision resistors ensures the gain is set accurately, which is vital for reliable ECG signal amplification.

- Thermal Considerations: Although AD620BR has low power consumption, operating conditions and circuit layout can affect thermal performance. Ensuring adequate ventilation and considering the thermal coupling between components are important for maintaining stable operation.

By carefully considering these design aspects and utilizing the AD620BR in an ECG amplification circuit, developers can achieve high-precision, stable, and reliable signal amplification suitable for critical medical monitoring applications.

AD620BR FAQ

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3. Are the AD620BR price and inventory displayed accurate?

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6. What is the process for return or replacement of AD620BR?

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 AD620BR we delivered, we will accept the replacement or return of the AD620BR 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 AD620BR.

(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