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Name: PGA205AUG4
Brand: Texas Instruments
SKU: PGA205AUG4
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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Texas Instruments PGA205AUG4

Part No.:: PGA205AUG4

Manufacturer:: Texas Instruments

Package:: 16-SOIC (0.295, 7.50mm Width)

Datasheet:: PGA205AUG4.pdf

Description:: IC INST AMP 1 CIRCUIT 16SOIC

In Stock:: 3505

Quantity:: Add To Cart

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PGA205AUG4 Specifications

Package/Case:
16-SOIC (0.295, 7.50mm Width)
Packaging:
Tube
Series:
-
ProductStatus:
Discontinued at Mosen
AmplifierType:
Instrumentation
NumberofCircuits:
1
OutputType:
-
SlewRate:
0.7V/µs
GainBandwidthProduct:
-
-3dbBandwidth:
1 MHz
Current-InputBias:
500 pA
Voltage-InputOffset:
25 µV
Current-Supply:
5.2mA
Current-Output/Channel:
23 mA
Voltage-SupplySpan(Min):
9 V
Voltage-SupplySpan(Max):
36 V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

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PGA205AUG4 information

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PGA205AUG4 Typical application Circuitry

PGA205AUG4

The PGA205AUG4 is a precision programmable gain amplifier (PGA) that offers adjustable gain for analog signals, making it highly suitable for a variety of applications that require precise signal amplification. This chip is commonly used in data acquisition systems, medical instrumentation, industrial measurement and control, and any scenario that demands the precise adjustment of analog signal levels before further processing or analysis.

Key Features and Parameters

- Adjustable Gain Settings: The PGA205AUG4 allows for multiple gain configurations, enabling users to tailor the amplification to meet the requirements of their specific application.

- High Precision and Low Noise: This chip is designed for high-precision signal amplification with minimal noise, ensuring the integrity of the amplified signal.

- Wide Supply Voltage Range: It operates across a broad range of supply voltages, offering flexibility for integration into various system designs.

- Differential Input Capability: The PGA205AUG4 supports differential input signals, which can help to improve signal quality by reducing noise and interference.

Application Scenario: Signal Conditioning in a Data Acquisition System

In a data acquisition system, the PGA205AUG4 can be employed to condition the signal from a sensor before it is digitized by an analog-to-digital converter (ADC). This scenario often involves dealing with signals of varying amplitudes that must be accurately amplified to match the input range of the ADC.

Detailed Circuit Connection

- Sensor Interface: Connect the sensor's output to the differential input terminals (IN+ and IN-) of the PGA205AUG4. It's critical to ensure that the sensor's output impedance is matched with the input impedance of the PGA to maintain signal fidelity.

- Gain Configuration: Digital control lines from a microcontroller or a digital logic circuit are used to set the gain of the PGA205AUG4 via its gain selection pins. This configuration enables the system to dynamically adjust the gain in response to changes in sensor output or system requirements.

- Power Supply Connection: The V+ and V- supply pins of the PGA205AUG4 must be connected to the system's power supply, adhering to the chip's specified operational voltage range. Proper power supply ensures the chip functions within its performance specifications.

- Output to ADC: Route the amplified signal from the output of the PGA205AUG4 to the input of an ADC. The PGA's output range should be carefully matched with the ADC's input range to maximize the effective use of the ADC's resolution and to minimize signal distortion.

- Decoupling and Filtering: Implement decoupling capacitors near the PGA205AUG4's power supply pins to mitigate power supply noise. Additionally, input signal filtering may be necessary to further reduce noise and interference before amplification.

Design Considerations

When incorporating the PGA205AUG4 into a signal conditioning circuit for a data acquisition system, consider the following design aspects:

- Gain Accuracy: Ensure that the gain setting is accurately calibrated to match the sensor's output range with the ADC's input range, optimizing the signal-to-noise ratio and the accuracy of the data acquisition system.

- Signal Path Integrity: The PCB layout should be designed to preserve signal integrity, utilizing short and direct signal paths, and implementing proper grounding strategies to minimize noise and interference.

- Power Supply Quality: The power supply to the PGA205AUG4 must be stable and free of noise, using voltage regulators and filtering techniques to maintain a clean operating environment for the amplifier.

- Thermal Management: While the PGA205AUG4 is not typically a major source of heat, the overall thermal environment of the system should be considered, especially in high-temperature applications or when the chip is operating at high gains.

- Protection Measures: Incorporate protection mechanisms such as surge protection and electrostatic discharge (ESD) protection for the PGA205AUG4 to prevent damage from overvoltage conditions and static discharges.

In summary, the PGA205AUG4 is an integral component for signal conditioning in data acquisition systems, offering programmable gain, high precision, and low noise characteristics. Its application in such systems underscores the need for careful consideration of gain calibration, signal integrity, power supply management, thermal conditions, and protective measures to achieve accurate and reliable signal amplification.

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6. What is the process for return or replacement of PGA205AUG4?

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 PGA205AUG4 we delivered, we will accept the replacement or return of the PGA205AUG4 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 PGA205AUG4.

(3)The PartNo is unused and only in the original unpacked packaging.

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(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations