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Name: LMP91000SDX/NOPB
Brand: Texas Instruments
SKU: LMP91000SDX/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 LMP91000SDX/NOPB

Part No.:: LMP91000SDX/NOPB

Manufacturer:: Texas Instruments

Package:: 14-WFDFN Exposed Pad

Datasheet:: LMP91000SDX/NOPB.pdf

Description:: IC AFE 1 CHAN 8BIT 14WSON

In Stock:: 3679

Quantity:: Add To Cart

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LMP91000SDX/NOPB Specifications

Package/Case:
14-WFDFN Exposed Pad
Packaging:
Tape & Reel (TR)
Series:
-
ProductStatus:
Active
NumberofBits:
8
NumberofChannels:
1
Power(Watts):
-
Voltage-SupplyAnalog:
2.7V ~ 5.25V
Voltage-SupplyDigital:
2.7V ~ 5.25V
MountingType:
Surface Mount

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LMP91000SDX/NOPB information

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LMP91000SDX/NOPB Typical application Circuitry

LMP91000SDX NOPB

LMP91000SDX/NOPB is an integrated sensor Analog Front End (AFE) optimized for use in electrochemical sensing. It is particularly well-suited for applications that require the measurement of gas concentrations, such as carbon monoxide (CO) detectors, oxygen (O2) monitors, and various other types of gas analyzers.

Applications

LMP91000SDX/NOPB is versatile and can be used in a wide range of applications including:

- Environmental Monitoring: For detecting pollutants and hazardous gases in the air.

- Industrial Safety: To monitor gas levels in industrial environments, ensuring worker safety.

- Medical Diagnostics: In devices that analyze breath or fluids for specific markers.

- Agricultural: To monitor soil or air for gases that might affect crop health.

Key Features

- Programmable Gain and Load Resistor: Allows adjustment for different sensor types and sensitivities.

- Internal Voltage Reference: Provides a stable baseline for sensor readings.

- Temperature Compensation: Ensures accurate readings across a range of temperatures.

- Low Power: Suitable for battery-operated devices.

Example Application: CO Gas Detector Circuit

Sensor Connection: The working electrode (WE) of the CO sensor connects to the WE pin of the LMP91000SDX/NOPB. The reference electrode (RE) and counter electrode (CE) connect to their respective pins on the AFE.

Gain and Load Resistor Configuration: Use the I2C interface to program the TIA (Transimpedance Amplifier) gain and load resistor to match the CO sensor's characteristics. For a typical CO sensor, setting the gain to 2750 and the load resistor to 100 Ω might be a good starting point.

Voltage Reference and Bias: Set the internal voltage reference to 1.2V, and apply a bias to the WE to optimize the sensor response. The bias voltage depends on the sensor's requirements; for CO sensors, a bias of -0.4V is common.

Output Connection: The AFE's output connects to an ADC (Analog to Digital Converter) input of a microcontroller for digitizing the sensor signal. Ensure the microcontroller's ADC can handle the voltage range output by the AFE.

Temperature Compensation: Integrate a temperature sensor to monitor environmental temperature. Use the microcontroller to adjust the readings from the LMP91000SDX/NOPB based on temperature, ensuring accurate gas concentration measurements across different temperatures.

Design Considerations

- Sensor Compatibility: Ensure the electrochemical sensor's operating voltage and current requirements are within the LMP91000SDX/NOPB's capabilities.

- Environmental Factors: The circuit should be designed considering the environmental conditions it will be exposed to, such as humidity and temperature variations.

- Power Consumption: Optimize the power settings for battery-operated devices to ensure long battery life.

- Calibration: Implement a calibration procedure to account for sensor drift and variance over time.

In summary, the LMP91000SDX/NOPB offers a flexible and efficient solution for integrating electrochemical sensors into various applications, with its programmable features allowing for fine-tuning to specific sensor requirements.

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6. What is the process for return or replacement of LMP91000SDX/NOPB?

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 LMP91000SDX/NOPB we delivered, we will accept the replacement or return of the LMP91000SDX/NOPB 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 LMP91000SDX/NOPB.

(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