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Name: PGA205AU
Brand: Texas Instruments
SKU: PGA205AU
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 PGA205AU

Part No.:: PGA205AU

Manufacturer:: Texas Instruments

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

Datasheet:: PGA205AU.pdf

Description:: IC INST AMP 1 CIRCUIT 16SOIC

In Stock:: 938

Quantity:: Add To Cart

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PGA205AU Specifications

Package/Case:
16-SOIC (0.295, 7.50mm Width)
Packaging:
Tube
Series:
-
ProductStatus:
Active
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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PGA205AU information

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PGA205AU Typical application Circuitry

PGA205AU

A precision programmable gain amplifier (PGA) called the PGA205AU was created for a variety of uses where changing the amplification of analog signals is necessary.

Key Features and Parameters

- Programmable Gain Options: The PGA205AU offers a range of gain settings, enabling users to adjust the amplification of the input signal according to the specific requirements of their application.

- Low Noise Performance: Designed to minimize noise, enhancing the quality of the amplified signal.

- High Accuracy: Provides accurate signal amplification, which is essential for applications that call for thorough and precise signal analysis.

- Broad Supply Voltage Range: Offers flexibility in a variety of system designs by operating across a wide range of supply voltages.

- Differential Input: By lowering noise and interference, this feature enhances the quality of the signal by supporting differential input signals.

Application Scenario: Precision Temperature Measurement System

In a precision temperature measurement system, the PGA205AU can be used to amplify the low-level signal from a temperature sensor before it is converted to a digital format by an analog-to-digital converter (ADC). This application requires precise and adjustable gain to ensure the temperature readings are accurate and reliable.

Detailed Circuit Connection

- Temperature Sensor Interface: Connect the output of the temperature sensor to the differential input pins (IN+ and IN-) of the PGA205AU. Matching the sensor output impedance with the input impedance of the PGA205AU is essential to ensure accurate signal transmission.

- Gain Setting Configuration: Utilize digital control lines from a microcontroller or digital logic circuit to select the gain of the PGA205AU by configuring its gain selection pins. This dynamic adjustment capability allows the system to adapt to different temperature ranges and sensor outputs.

- Power Supply Application: Connect the PGA205AU's V+ and V-pins to the power supply, making sure the voltage levels are within the chip's designated range. This is essential to preserving peak performance and preventing PGA damage.

- Output Connection to ADC: The output from the PGA205AU is connected to the input of an ADC. It's important to match the amplified signal level to the input range of the ADC to optimize the conversion accuracy and dynamic range.

- Decoupling and Filtering: Place decoupling capacitors near the PGA205AU's power supply pins to filter out noise. Additionally, consider using filtering techniques at the input to reduce noise and interference from affecting the temperature signal.

Design Considerations

When integrating the PGA205AU into a precision temperature measurement system, several design aspects must be carefully considered:

- Gain Calibration: Properly calibrate the gain setting to match the expected output range of the temperature sensor with the input range of the ADC, ensuring high precision in temperature readings.

- Signal Integrity: To maintain signal integrity, pay close attention to the PCB architecture. Use short, direct traces for the signal paths and implement proper grounding techniques to minimize noise and interference.

- Power Supply Stability: Ensure that the power supply to the PGA205AU is stable and clean, utilizing voltage regulators and filtering to protect against fluctuations and noise that could impact performance.

- Thermal Considerations: While the PGA205AU itself may not generate significant heat, the overall system temperature can affect its performance. Consider the thermal environment and provide adequate ventilation or cooling if necessary.

- Protection Measures: Implement protective measures such as surge protection and ESD protection for the PGA205AU to safeguard against overvoltage conditions and static discharges that could occur during handling or operation.

In summary, the PGA205AU is an integral component in precision temperature measurement systems, offering programmable gain, low noise amplification, and high accuracy. Its application in such systems highlights the necessity for careful consideration of gain calibration, signal integrity, power supply quality, thermal management, and protective measures to achieve precise and reliable temperature readings.

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6. What is the process for return or replacement of PGA205AU?

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 PGA205AU we delivered, we will accept the replacement or return of the PGA205AU 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 PGA205AU.

(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