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Name: OPA2234UA/2K5G4
Brand: Texas Instruments
SKU: OPA2234UA/2K5G4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Texas Instruments OPA2234UA/2K5G4

Part No.:: OPA2234UA/2K5G4

Manufacturer:: Texas Instruments

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

Datasheet:: OPA2234UA/2K5G4.pdf

Description:: IC OPAMP GP 2 CIRCUIT 8SOIC

In Stock:: 3927

Quantity:: Add To Cart

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OPA2234UA/2K5G4 Specifications

Package/Case:
8-SOIC (0.154, 3.90mm Width)
Packaging:
Tape & Reel (TR)
Series:
-
ProductStatus:
Obsolete
AmplifierType:
General Purpose
NumberofCircuits:
2
OutputType:
-
SlewRate:
0.2V/µs
GainBandwidthProduct:
350 kHz
-3dbBandwidth:
-
Current-InputBias:
12 nA
Voltage-InputOffset:
70 µV
Current-Supply:
275µA (x2 Channels)
Current-Output/Channel:
22 mA
Voltage-SupplySpan(Min):
2.7 V
Voltage-SupplySpan(Max):
36 V
OperatingTemperature:
-40°C ~ 125°C
MountingType:
Surface Mount

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OPA2234UA/2K5G4 information

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OPA2234UA/2K5G4 Typical application Circuitry

OPA2234UA 2K5G4

The OPA2234UA/2K5G4 is a precision, low-power operational amplifier with a rail-to-rail input and output, housed in a surface-mount package. It's designed for applications that demand high precision and low power consumption, such as sensor signal conditioning, medical instrumentation, and battery-powered devices.

Features of OPA2234UA/2K5G4

1. Precision Operation: Offers high precision with low offset voltage and low drift.

2. Rail-to-Rail Input/Output: Capable of operating with input and output close to the supply rails, maximizing dynamic range.

3. Low Power Consumption: Ideal for battery-powered and energy-efficient applications.

4. Dual Operational Amplifier: Contains two operational amplifiers in one package, which saves space and simplifies designs.

Application Scenario: Battery-Powered Temperature Monitoring System

In a battery-powered temperature monitoring system, the OPA2234UA/2K5G4 can be used to amplify and filter the signal from temperature sensors before it is digitized by an ADC. Here's a detailed guide for connecting this in a temperature monitoring system circuit:

Circuit Connection Details

1. Power Supply (V+ - Pin 8, V- - Pin 4):

- Supplying Operating Voltage: Connect V+ (Pin 8) to the positive terminal of the battery and V- (Pin 4) to the negative terminal. Ensure the battery voltage is within the recommended operating range for the OPA2234UA/2K5G4.

2. Non-Inverting Inputs (IN+1, IN+2 - Pins 3, 5):

- Temperature Sensor Signal Input: Connect IN+1 and IN+2 (Pins 3, 5) to the outputs of the temperature sensors. Use appropriate input protection and buffering if necessary.

3. Inverting Inputs (IN-1, IN-2 - Pins 2, 6): - Filtering and feedback: Attach Pins 2, 6) to IN-1 and IN-2 (a feedback network made up of resistors and capacitors). As needed, this network adjusts the strength and filters the signal.

4. Outputs (Pins 1, 7) (OUT1, OUT2):

- Signal Output to ADC: Attach pins 1 and 7 (OUT1 and OUT2) to an ADC's inputs or the subsequent signal processing step.

Design-Related Issues

When designing a circuit with the OPA2234UA/2K5G4, consider the following:

1. Power Supply Decoupling: Use decoupling capacitors close to the power pins to ensure a stable and clean power supply.

2. Gain and Bandwidth Configuration: Design the feedback network carefully to achieve the desired gain and bandwidth while maintaining stability and precision.

3. Input Protection: Include input protection mechanisms, such as clamping diodes, to prevent damage to the OPA2234UA/2K5G4 from voltage spikes or static discharge.

4. Noise Minimization: Keep the layout compact and shield sensitive signal paths to minimize noise pickup, especially in precision measurement applications like temperature monitoring.

5. Battery Life Considerations: Pay attention to the quiescent current and power-down features of the OPA2234UA/2K5G4 to maximize battery life in portable applications.

By carefully addressing these considerations and utilizing the functionalities and pin configurations of the OPA2234UA/2K5G4, one can effectively integrate this precision operational amplifier into sensitive applications like battery-powered temperature monitoring systems. The OPA2234UA/2K5G4, with its precision operation, low power consumption, and rail-to-rail input/output, is an excellent choice for systems requiring accurate and efficient signal processing with minimal power usage.

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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.

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