What is the Additional Feature ?

Name: LM311DR
Brand: Texas Instruments
SKU: LM311DR
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 LM311DR

Part No.:: LM311DR

Manufacturer:: Texas Instruments

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

Datasheet:: LM311DR.pdf

Description:: IC DIFF COMP STROBE 8-SOIC

In Stock:: 32804

Quantity:: Add To Cart

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LM311DR Specifications

Package/Case:
8-SOIC (0.154, 3.90mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
Type:
General Purpose
NumberofElements:
1
OutputType:
MOS, Open-Collector, Open-Emitter, TTL
Voltage-SupplySingle/Dual(±):
3.5V ~ 30V, ±1.75V ~ 15V
Voltage-InputOffset(Max):
7.5mV @ ±15V
Current-InputBias(Max):
0.25µA @ ±15V
Current-Output(Typ):
-
Current-Quiescent(Max):
7.5mA
CMRRPSRR(Typ):
-
PropagationDelay(Max):
-
Hysteresis:
-
OperatingTemperature:
0°C ~ 70°C
MountingType:
Surface Mount

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LM311DR information

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LM311DR Typical application Circuitry

LM311DR

The LM311DR is part of the LM311 series, a range of voltage comparators designed by Texas Instruments. These devices are widely used to compare two voltage levels in electrical circuits and produce a digital output based on the comparison.The LM311DR is particularly known for its fast response time and ability to operate with a wide range of power supplies, making it suitable for a variety of applications including threshold detection, level shifting, and signal relay.

1. Inverting Input (Pin 1): The comparator's inverting input is located on this pin. Connect the voltage reference or signal that you want to compare against the non-inverting input.

2. Non-Inverting Input (Pin 2): Connect the voltage reference or signal to this pin, which will be compared with the voltage at the inverting input.

3. Offset Null (Pin 3): This pin is used for offset voltage adjustment. Basic programs can function without it. If required, connect a potentiometer between this pin, VCC, and Ground for precise offset nulling.

4. Positive Power Supply (VCC+, Pin 4): Connect the positive side of the power supply to this pin. The power supply voltage range that the LM311DR can function with is rather broad.

5. Output (Pin 5): This pin provides the output of the comparator. The output can be connected to the next stage in your circuit, such as a digital input of a microcontroller or an LED with a current-limiting resistor.

6. Strobe (Pin 6): The output stage can be turned off with this pin. The output will become inactive if the pin is set to a high level. If it's not being utilized, it can be disconnected.

7. Negative Power Supply (VCC-, Pin 7): Attach this pin to the power supply's negative side. For single supply operations, it may be grounded.

8. Offset Null (Pin 8): Similar to Pin 3, this is also used for offset voltage adjustment. In many applications, it can be left unconnected.

9. Key Characteristics of the LM311DR:

- Voltage Comparison: The LM311DR is used for comparing two voltage levels, providing a digital output based on the comparison.

- Fast Response Time: Because of its reputation for speedy reaction, it can be used in situations where quick signal processing is necessary.

- Wide Power Supply Range: The LM311DR can operate with various power supply voltages, adding to its versatility.

- Output Flexibility: Its output is compatible with TTL, MOS, and CMOS, and can be connected to different types of loads.

When designing circuits with the LM311DR, it's important to refer to the datasheet for detailed specifications, particularly for power supply voltages and output current limits. If precise voltage comparison is needed, consider implementing offset nulling. Additionally, the output might require a pull-up resistor, depending on the load and the type of logic it interfaces with.

In summary, the LM311DR is a versatile and efficient choice for voltage comparison applications, with its fast response time and ability to work with a wide range of power supplies making it a valuable component in various electronic systems.

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6. What is the process for return or replacement of LM311DR?

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 LM311DR we delivered, we will accept the replacement or return of the LM311DR 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 LM311DR.

(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