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Texas Instruments INA118U

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Texas Instruments
8-SOIC (0.154, 3.90mm Width)
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    INA118U this integrated circuit is available in factory sealed anti static packs. at Please read product page below detail information. including INA118U 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 INA118U 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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    INA118U Typical application Circuitry


    As a general-purpose instrumentation amplifier, the INA118U operates with low power consumption.The INA118U is typically utilized in several scenarios including:

    1. Precision data acquisition applications.

    2. Test equipment.

    3. Medical equipment.

    4. Industrial process controls.

    Distinctive parameters and features of the INA118U include: 

    1. A wide power supply range from ±1.35V to ±18V.

    2. Low power consumption, making it suitable for battery-powered applications.

    3. It provides excellent accuracy with a low input bias current of 5nA (maximum) and low offset voltage of 250μV (maximum).

    4. The ability to configure the gain from 1 to 10000 through an external resistor.

    Consider, for instance, a scenario where the INA118U is employed in a precision data acquisition system to amplify a small sensor signal. Here's a step-by-step guide on how the INA118U might be wired in this context:

    1. Input Pins (Pins 2 and 3): The sensor's output is linked to these pins. Pin 2 (In-) connects to the sensor's negative output, while Pin 3 (In+) connects to the sensor's positive output.

    2. Gain Setting (Pins 1 and 8): These pins are utilized to establish the amplifier's gain. A resistor is placed between these two pins to set the preferred gain. The datasheet for the INA118U provides guidance on selecting the resistor value based on the desired gain.

    3. Power Supply Pins (Pins 4 and 7): Pin 4 is linked to the negative power supply, and Pin 7 to the positive power supply. It's crucial to remember that the INA118U can operate with both a single power supply and a dual (positive and negative) power supply.

    It would usually be connected to the next stage in your data acquisition system. When creating a circuit with the INA118U, you should bear the following considerations in mind:

    1. Power Supply: Ensure that the power supply falls within the range specified in the INA118U datasheet to prevent damage.

    2. Input Signals: The input signals must be within the limits outlined in the datasheet. Exceeding these thresholds could lead to damage or inaccurate results.

    3. Gain Configuration: When setting the amplifier's gain, verify that it's appropriate for your application. Overly high gain could result in saturation, while insufficient gain may not provide the necessary signal strength.

    4. PCB Layout: Good design of your PCB layout is necessary to avoid introducing noise or other problems. This includes things like where to put decoupling capacitors and how to route signal traces.

    5. Operating Temperature: The INA118U operates within a certain temperature range according to its datasheet. To prevent performance deterioration or failure, your application should stay inside this range.

    For the most accurate and detailed information for your specific application, always refer back to the INA118U datasheet.

    INA118U informationINA118U information

    INA118U FAQ

    1. How to order INA118U on

    Currently, only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.

    2. How does guarantee that INA118U is from the original manufacturer or authorized agents?

    We have a professional and experienced quality control team to strictly verify and test the INA118U. All suppliers must pass our qualification reviews before they can publish their products including INA118U on; we pay more attention to the channels and quality of INA118U products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

    3. Are the INA118U price and inventory displayed accurate?

    The price and inventory of INA118U fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

    4. What forms of payment are accepted?

    Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

    Warm Tips: Some orders in certain payment forms may require handling fee.

    5. How is the shipping arranged?

    Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

    Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

    Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

    6. What is the process for return or replacement of INA118U?

    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 INA118U we delivered, we will accept the replacement or return of the INA118U 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 INA118U.

    (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

    7.How to contact us to get technical supports, such as INA118U pin diagram, INA118U datasheet?

    If you need any after-sales service, please do not hesitate to contact us.

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