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Name: OPA2234UA
Brand: Texas Instruments
SKU: OPA2234UA
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 OPA2234UA

Part No.:: OPA2234UA

Manufacturer:: Texas Instruments

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

Datasheet:: OPA2234UA.pdf

Description:: IC OPAMP GP 2 CIRCUIT 8SOIC

In Stock:: 3036

Quantity:: Add To Cart

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OPA2234UA Specifications

Package/Case:
8-SOIC (0.154, 3.90mm Width)
Packaging:
Bulk,Tube
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 information

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OPA2234UA Typical application Circuitry

OPA2234UA

Rail-to-rail input and output capabilities enable the OPA2234UA, a low-power, precision operational amplifier. It is made for battery-operated devices, portable instrumentation, and sensor signal conditioning-applications that need high precision and low power consumption.

Features of OPA2234UA

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

2. Rail-to-Rail Input/Output: This maximizes dynamic range by enabling full-range operation from the power supply rails.

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

4. Dual Operational Amplifier: Contains two operational amplifiers in one package, saving space and simplifying designs.

Application Scenario: Portable ECG Monitor

In a portable ECG (Electrocardiogram) monitor setup, the OPA2234UA can be used to amplify and filter the ECG signal before it is digitized by an ADC. Here's a detailed guide for connecting this to a portable ECG monitor circuit:

Circuit Connection Details

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

- Providing the necessary operating voltage: Attach Pin 8 (V+) to the positive power source and Pin 4 (V-) to either the ground or the negative power supply. Make sure that the power source falls within the OPA2234UA's recommended voltage range.

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

- ECG Signal Input: Connect IN+1 and IN+2 (Pins 3, 5) to the ECG signal electrodes through appropriate input protection and filtering circuitry.

3. Inverting Inputs (IN-1, IN-2 - Pins 2, 6):

- Feedback and Filtering: Connect IN-1 and IN-2 (Pins 2, 6) to a feedback network consisting of resistors and capacitors to set the gain and filter the ECG signal as needed.

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

- Signal Output to ADC: Connect OUT1 and OUT2 (Pins 1, 7) to the inputs of an ADC or the next stage in the signal processing chain.

Design-Related Issues

Take into account the following while creating a circuit using the OPA2234UA:

1. Power Supply Decoupling: To guarantee a steady and clean power supply, use decoupling capacitors near the power pins.

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 circuits to safeguard the OPA2234UA from potential over-voltage conditions, especially in medical applications where patient safety is paramount.

4. Noise Minimization: Keep the layout compact and shield sensitive signal paths to minimize noise pickup.

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

By attentively addressing these considerations and utilizing the features and pin configurations of the OPA2234UA, one can effectively integrate this precision operational amplifier into sensitive applications like portable ECG monitors. The OPA2234UA, 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.

OPA2234UA FAQ

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6. What is the process for return or replacement of OPA2234UA?

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 OPA2234UA we delivered, we will accept the replacement or return of the OPA2234UA 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 OPA2234UA.

(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