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Name: OPA129UB/2K5
Brand: Texas Instruments
SKU: OPA129UB/2K5
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 OPA129UB/2K5

Part No.:: OPA129UB/2K5

Manufacturer:: Texas Instruments

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

Datasheet:: OPA129UB/2K5.pdf

Description:: IC OPAMP GP 1 CIRCUIT 8SOIC

In Stock:: 2262

Quantity:: Add To Cart

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OPA129UB/2K5 Specifications

Package/Case:
8-SOIC (0.154, 3.90mm Width)
Packaging:
Tape & Reel (TR)
Series:
Difet®
ProductStatus:
Obsolete
AmplifierType:
General Purpose
NumberofCircuits:
1
OutputType:
-
SlewRate:
2.5V/µs
GainBandwidthProduct:
1 MHz
-3dbBandwidth:
-
Current-InputBias:
0.03 pA
Voltage-InputOffset:
500 µV
Current-Supply:
1.2mA
Current-Output/Channel:
10 mA
Voltage-SupplySpan(Min):
10 V
Voltage-SupplySpan(Max):
36 V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

OPA129UB/2K5 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including OPA129UB/2K5 price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for OPA129UB/2K5 to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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OPA129UB/2K5 information

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OPA129UB/2K5 Typical application Circuitry

OPA129UB 2K5

Texas Instruments designed the OPA129UB/2K5, a precision operational amplifier (op-amp) that is distinguished by its low noise performance, high input impedance, and ultra-low input bias current.

Key Features of the OPA129UB/2K5

- Ultra-Low Input Bias Current: Ensures accurate amplification of high-impedance signal sources without significant signal loss or distortion.

- High Input Impedance: Preserves the original signal integrity by reducing the loading effect on the signal source.

- Low Noise: Improves the purity of the signal, which is crucial in delicate measurement applications.

- Broad Supply Voltage Range: Provides system designers with flexibility by supporting a range of power supply configurations.

- Stable Performance: Offers dependable performance in a broad spectrum of supply voltages and temperatures.

Application Scenario: Electrochemical Sensor Interface

A typical application for the OPA129UB/2K5 is in interfacing with electrochemical sensors, where it is used to amplify the small currents generated by the sensor in response to chemical reactions, allowing for precise measurement of chemical concentrations.

Detailed Circuit Connection

1.Sensor Connection: Connect the output of an electrochemical sensor to the inverting input (Pin 2) of the OPA129UB/2K5. This setup is critical for accurately capturing the sensor's current output.

2.Transimpedance Amplification: Attach a feedback resistor between the output (Pin 6) and the inverting input (Pin 2) to convert the sensor current to a measurable voltage. The value of this resistor determines the conversion gain and thus the sensitivity of the measurement.

3.Feedback Capacitor for Stability: Place a feedback capacitor in parallel with the feedback resistor to improve the circuit's phase margin and stability, addressing the capacitance of the sensor and preventing oscillations.

4.Power Supply: Provide power to the OPA129UB/2K5 by connecting a positive voltage to Pin 7 and a negative voltage to Pin 4. A stable and clean power supply is vital for minimizing operational noise and maximizing the accuracy of chemical concentration measurements.

5.Output Filtering and Signal Processing: Implement additional low-pass filtering at the output (Pin 6) if necessary to remove high-frequency noise. The processed signal can then be directed to further stages, such as analog-to-digital conversion for digital readout.

Design Considerations

When designing an electrochemical sensor interface with the OPA129UB/2K5, several important factors must be considered:

- Power Supply Integrity: Ensure the power supply is free from noise and fluctuations to fully utilize the low noise feature of the OPA129UB/2K5.

- Component Precision: Use high-quality, precision components in the feedback loop to maintain signal accuracy and stability.

- Sensor Characteristics: Account for the characteristics of the electrochemical sensor, optimizing the amplifier design for accurate concentration measurement.

- Thermal Management: Consider the thermal behavior of the OPA129UB/2K5 and surrounding components to prevent performance degradation.

- Signal Path Optimization: Design the signal path from the sensor through the OPA129UB/2K5 to the output stage to minimize losses and interference, ensuring high-quality signal processing.

By meticulously addressing these design considerations, engineers can effectively leverage the capabilities of the OPA129UB/2K5 in creating high-precision electrochemical sensor interfaces, benefiting from its ultra-low bias current, low noise, and high input impedance to achieve superior measurement performance.

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6. What is the process for return or replacement of OPA129UB/2K5?

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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.

(2)We are informed of the defect described above within 90 days after the delivery of OPA129UB/2K5.

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

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