What is the Additional Feature ?

Name: LM293ADR
Brand: Texas Instruments
SKU: LM293ADR
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 LM293ADR

Part No.:: LM293ADR

Manufacturer:: Texas Instruments

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

Datasheet:: LM293ADR.pdf

Description:: IC DUAL GP DIFF COMPARATR 8SOIC

In Stock:: 2894

Quantity:: Add To Cart

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LM293ADR 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):
2mV @ 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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LM293ADR information

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LM293ADR Typical application Circuitry

LM293ADR

A dual voltage comparator device for precise voltage comparison applications is the LM293ADR. It is commonly used in various electronic circuits for comparing two voltages and providing a digital output to indicate which voltage is higher.

Applications: The LM293ADR is versatile and can be used in a variety of scenarios, including battery voltage monitoring, window comparators, level shifting, and analog-to-digital converters.

Parameters: This LM293ADR chip typically operates within a wide supply voltage range of 2V to 36V, with a low input offset voltage of 2mV and a low supply current of 0.8mA. In addition, its quick reaction time makes it appropriate for high-speed uses.

Circuit Design for a Voltage Level Detector:

1. Supply Voltage: Connect the positive supply voltage (Vcc) to pin 8 and the ground to pin 4 of the LM293ADR. For this application, a supply voltage of 5V is suitable.

2. Reference Voltage: Set a reference voltage using a voltage divider circuit. Connect a 10kΩ resistor from Vcc to pin 6 (non-inverting input of the first comparator) and another 10kΩ resistor from pin 6 to ground. This creates a reference voltage of 2.5V at pin 6.

3. Input Voltage: Connect the voltage to be detected to pin 5 (inverting input of the first comparator).

4. Output: The output of the comparator is available at pin 7. Connect a 1kΩ pull-up resistor from pin 7 to Vcc. The output will be high (close to Vcc) when the input voltage is less than the reference voltage, and low (close to ground) when the input voltage is higher than the reference voltage.

5. LED Indicator: To visually indicate the output status, connect an LED in series with a 220Ω current-limiting resistor from pin 7 to ground. The LED will light up when the input voltage is higher than the reference voltage.

Design Considerations:

- Hysteresis: To prevent false triggering due to noise, add hysteresis by connecting a feedback resistor between the output (pin 7) and the non-inverting input (pin 6).

- Power Supply Decoupling: Place a 0.1µF ceramic capacitor close to the power supply pins (pin 8 and pin 4) to filter out any noise on the supply line.

- Input Protection: If the input voltage can exceed the supply voltage, use clamping diodes or voltage dividers to protect the input pins.

By adhering to these guidelines and incorporating the LM293ADR chip into your circuit design, you can create a reliable and efficient voltage level detector suitable for a variety of applications.

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6. What is the process for return or replacement of LM293ADR?

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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.

(2)We are informed of the defect described above within 90 days after the delivery of LM293ADR.

(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