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Name: LM293DR
Brand: Texas Instruments
SKU: LM293DR
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 LM293DR

Part No.:: LM293DR

Manufacturer:: Texas Instruments

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

Datasheet:: LM293DR.pdf

Description:: IC COMPARATOR DIFF DUAL 8SOIC

In Stock:: 3190

Quantity:: Add To Cart

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LM293DR Typical application Circuitry

LM293DR

The LM293DR is part of the LM293 series of integrated circuits, which are dual differential comparators. These devices, manufactured by Texas Instruments, are widely used in various applications where the need is to compare two voltages or signals and determine which one is higher. Particularly well-known for its capacity to function with two power supplies and from a single power source across a broad voltage range is the LM293DR.

1. Inverting Input of Comparator 1 (Pin 1): This pin is used as the inverting input for the first comparator. The voltage at pin 2-the non-inverting input-is compared to the voltage at this pin.

2. Non-Inverting Input of Comparator 1 (Pin 2): This is the first comparator's non-inverting input. This pin's voltage level is compared to pin 1's (the inverting input) voltage.

3. Output of Comparator 1 (Pin 3): This pin outputs the result of the comparison from comparator 1. If the non-inverting input (pin 2) is higher than the inverting input (pin 1), this output goes high; otherwise, it stays low.

4. VCC (Pin 4): This pin is connected to the positive supply voltage. The LM293DR can operate over a range of supply voltages, making it versatile for various applications.

5. Output of Comparator 2 (Pin 5): Similar to pin 3, this is the output for the second comparator. Depending on how comparator 2's inverting and non-inverting inputs compare, it either goes high or low.

6. Non-Inverting Input of Comparator 2 (Pin 6): This pin is the non-inverting input for the second comparator. The voltage here is compared with the voltage at the inverting input (pin 7).

7. Inverting Input of Comparator 2 (Pin 7): The inverting input for the second comparator. The voltage at pin 6-the non-inverting input-is compared to the voltage at this pin.

8. Ground (Pin 8): This pin is connected to the ground or the negative supply voltage, in case of a dual-supply operation.

9. Key Characteristics of the LM293DR:

- Wide Voltage Range: The LM293DR can operate with a wide range of supply voltages, adding to its flexibility in different circuit designs.

- Dual Comparators: Housing two comparators in one package allows for compact and efficient designs.

- Single or Dual Power Supply Operation: It can operate with a single power supply or with dual supplies, enhancing its adaptability in various applications.

When designing circuits with the LM293DR, it's important to follow the datasheet specifications closely, particularly the voltage ranges and output current capabilities. Using pull-up or pull-down resistors on the output pins, depending on your application, can be crucial for proper operation. Also, ensuring that the input voltages do not exceed the supply voltage is necessary to prevent damage to the device.

In summary, the LM293DR is a versatile and robust component for comparing voltages in a wide range of electronic applications. Its dual comparator design and ability to operate with different power supply configurations make it a valuable tool in the electronic design toolkit.

LM293DR information

LM293DR Specifications

Package/Case:
8-SOIC (0.154, 3.90mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
Type:
Differential
NumberofElements:
2
OutputType:
CMOS, MOS, Open-Drain, TTL
Voltage-SupplySingle/Dual(±):
2V ~ 36V, ±1V ~ 18V
Voltage-InputOffset(Max):
5mV @ 30V
Current-InputBias(Max):
0.25µA @ 5V
Current-Output(Typ):
20mA
Current-Quiescent(Max):
2.5mA
CMRRPSRR(Typ):
-
PropagationDelay(Max):
-
Hysteresis:
-
OperatingTemperature:
-25°C ~ 85°C
MountingType:
Surface Mount

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6. What is the process for return or replacement of LM293DR?

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 LM293DR we delivered, we will accept the replacement or return of the LM293DR 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 LM293DR.

(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