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Name: LMP91000SDE/NOPB
Brand: Texas Instruments
SKU: LMP91000SDE/NOPB
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 LMP91000SDE/NOPB

Part No.:: LMP91000SDE/NOPB

Manufacturer:: Texas Instruments

Package:: 14-WFDFN Exposed Pad

Datasheet:: LMP91000SDE/NOPB.pdf

Description:: IC AFE 1 CHAN 8BIT 14WSON

In Stock:: 2877

Quantity:: Add To Cart

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LMP91000SDE/NOPB Typical application Circuitry

LMP91000SDE NOPB

LMP91000SDE/NOPB represents a configurable potentiostat designed for creating sensor solutions in environments where the detection and measurement of specific chemicals or gases are required. This component is particularly essential in the development of portable and fixed gas detection systems, due to its capability to interface with various electrochemical sensors.

Application Scenarios

The LMP91000SDE/NOPB is versatile, finding its utility in numerous sectors:

- Environmental Monitoring: For the detection and quantification of pollutants.

- Healthcare: In devices that monitor vital biomarkers or environmental conditions affecting health.

- Industrial Safety: To ensure air quality meets safety standards, preventing hazardous exposure.

- Agricultural Technology: Monitoring gases that could impact crop yield or soil health.

Key Features

The LMP91000SDE/NOPB stands out due to its:

- Adjustable Settings: It allows for the tuning of transimpedance amplifier (TIA) gain and feedback resistance to match specific sensor requirements.

- Internal Voltage References: Offers stable baselines for consistent sensor readings.

- Low Power Consumption: Ideal for battery-operated devices where energy efficiency is paramount.

- Temperature Compensation: Ensures the accuracy of readings over a broad range of environmental temperatures.

Example Application: Breath Analyzer Circuit

Sensor Interface: Connect the breath sensor's working electrode to the LMP91000SDE/NOPB's WE pin. Attach the reference and auxiliary electrodes to the RE and CE pins, respectively.

Gain Setting: Utilize the device's I2C interface to adjust the TIA gain to accommodate the breath sensor's output. A gain setting might vary based on the sensor used, but a common setting could be in the range of 3500 to 7500 for breath analyzers.

Feedback Resistor Configuration: Program the feedback resistor through the I2C interface, selecting a value that complements the sensor's characteristics and desired sensitivity, such as 50 Ω for enhanced responsiveness.

Bias Voltage Application: Assign a suitable bias voltage to the working electrode through the LMP91000SDE/NOPB to optimize sensor performance. The required bias will depend on the specific sensor, with a typical range being between -0.3V to +0.3V.

Signal Processing: Connect the LMP91000SDE/NOPB's output to an analog-to-digital converter (ADC) input on a microcontroller. This setup is crucial for digitizing the analog signal for further analysis.

Design Considerations

When designing a circuit with the LMP91000SDE/NOPB, it's essential to consider:

- Sensor Compatibility: The chosen electrochemical sensor should operate within the LMP91000SDE/NOPB's supported voltage and current ranges.

- Circuit Protection: Implement safeguards against voltage spikes and electrostatic discharge (ESD) to prolong the lifespan of both the sensor and the AFE.

- Environmental Influences: Account for potential environmental impacts on the sensor and circuit, such as humidity, which might necessitate encapsulation or other protective measures.

- Power Management: For battery-operated devices, optimizing the LMP91000SDE/NOPB's power usage is critical to achieving a satisfactory battery life.

- Calibration Strategy: Develop a robust calibration routine to compensate for sensor drift over time, ensuring long-term reliability and accuracy.

Incorporating the LMP91000SDE/NOPB into a design demands careful attention to the specific requirements of the application and the characteristics of the chosen sensor to ensure optimal performance and reliability.

LMP91000SDE/NOPB information

LMP91000SDE/NOPB Specifications

Package/Case:
14-WFDFN Exposed Pad
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
NumberofBits:
-
NumberofChannels:
1
Power(Watts):
-
Voltage-SupplyAnalog:
2.7V ~ 5.25V
Voltage-SupplyDigital:
2.7V ~ 5.25V
MountingType:
Surface Mount

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6. What is the process for return or replacement of LMP91000SDE/NOPB?

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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.

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