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Name: LM2903D
Brand: STMicroelectronics
SKU: LM2903D
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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STMicroelectronics LM2903D

Part No.:: LM2903D

Manufacturer:: STMicroelectronics

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

Datasheet:: LM2903D.pdf

Description:: IC COMPARATOR DUAL LP 8-SOIC

In Stock:: 2300

Quantity:: Add To Cart

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LM2903D Specifications

Package/Case:
8-SOIC (0.154, 3.90mm Width)
Packaging:
Tube
Series:
-
ProductStatus:
Active
Type:
General Purpose
NumberofElements:
2
OutputType:
CMOS, DTL, ECL, MOS, Open-Collector, TTL
Voltage-SupplySingle/Dual(±):
2V ~ 36V, ±1V ~ 18V
Voltage-InputOffset(Max):
7mV @ 5V
Current-InputBias(Max):
0.25µA @ 5V
Current-Output(Typ):
16mA @ 5V
Current-Quiescent(Max):
2.5mA
CMRRPSRR(Typ):
-
PropagationDelay(Max):
-
Hysteresis:
-
OperatingTemperature:
-40°C ~ 125°C
MountingType:
Surface Mount

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LM2903D information

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LM2903D Typical application Circuitry

LM2903D

The LM2903D is a model in the LM2903 series, which is characterized by dual differential comparators. These devices are widely used for voltage comparison purposes in various electronic circuits, known for their reliability over a broad range of operating conditions. The LM2903D, in particular, is tailored for applications where precise voltage comparison is essential.

1. Power Supply Considerations: The LM2903D typically comes in an 8-pin package. For powering the device, pin 8 is used for the positive supply voltage (Vcc), and pin 4 is connected to the ground (GND). This setup is crucial regardless of whether the IC is used in a single or dual supply mode.

2. Input Pin Arrangement for Comparators: The LM2903D houses two comparators. Each comparator has an inverting input (pin 2 for the first comparator, pin 7 for the second) and a non-inverting input (pin 3 for the first comparator, pin 6 for the second). These inputs are where the voltages to be compared are fed.

3. Output Connections: The outputs of the comparators in the LM2903D (pin 1 for the first comparator, pin 5 for the second) can be linked to subsequent stages in the circuit. These outputs are typically used to trigger other components in response to the voltage comparison results.

4. Comparator Configuration: To set up the comparators in the LM2903D, apply a reference voltage to one input (either inverting or non-inverting) and the voltage to be compared to the other input. The output state will change based on the comparison between these two voltages.

5. Enhancing Stability with Bypass Capacitors: It's recommended to place bypass capacitors close to the power supply pins to mitigate noise and enhance circuit stability. A common choice is a capacitor around 0.1 µF.

6. Protective Measures for the IC: In environments where the LM2903D might face electrical disturbances, implementing protective elements like transient voltage suppressors can be crucial for safeguarding the IC.

Integrating the LM2903D into a circuit demands an understanding of these aspects for effective and dependable operation. The LM2903D's capacity for accurate voltage comparison and its adaptability across various conditions make it a valuable component in diverse electronic applications. For precise and optimal usage, always consult the LM2903D's manufacturer datasheet, which provides detailed specifications and guidelines for connections.

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6. What is the process for return or replacement of LM2903D?

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 LM2903D we delivered, we will accept the replacement or return of the LM2903D 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 LM2903D.

(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