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HomeProductsIntegrated Circuits (ICs)Linear - Amplifiers - Instrumentation, OP Amps, Buffer AmpsOPA2244PA
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OPA2244PA - Texas Instruments

Manufacturer Part Number
OPA2244PA
Manufacturer
Texas Instruments
Allelco Part Number
32D-OPA2244PA
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
23,697 pcs available, New & Original
Parts Description
IC OPAMP GP 2 CIRCUIT 8DIP
Package
8-PDIP
Data sheet
OPA2244PA.pdf

PCN Assembly/Origin

Mult Dev 13/Apr/2023.pdf
RoHs Status
ROHS3 Compliant
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Specifications

OPA2244PA Tech Specifications
Texas Instruments - OPA2244PA technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - OPA2244PA

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - Supply Span (Min) 2.2 V
Voltage - Supply Span (Max) 36 V
Voltage - Input Offset 700 µV
Supplier Device Package 8-PDIP
Slew Rate 0.1V/µs
Series MicroAmplifier™
Package / Case 8-DIP (0.300", 7.62mm)
Package Tube
Output Type -
Product Attribute Attribute Value
Operating Temperature -40°C ~ 85°C
Number of Circuits 2
Mounting Type Through Hole
Gain Bandwidth Product 430 kHz
Current - Supply 40µA (x2 Channels)
Current - Output / Channel 25 mA
Current - Input Bias 10 nA
Base Product Number OPA2244
Amplifier Type General Purpose

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99

Frequently Asked Questions(FAQ)

How does the OPA2244PA compare to other dual-channel general-purpose amplifiers in terms of power consumption and supply voltage range for battery-powered applications?
The OPA2244PA draws a total current of 40µA across its two channels, making it suitable for low-power designs. Its supply range spans from 2.2V to 36V, allowing operation in both single-supply systems down to low-voltage levels and higher industrial voltages. When compared to similar parts like the LT1213ACN8#PBF or LT1492CN8#PBF, this device offers competitive quiescent current performance while maintaining wide rail-to-rail flexibility. This combination supports extended battery life in portable instrumentation where both efficiency and headroom are critical.
What is the significance of the 700 µV input offset voltage in the OPA2244PA for precision measurement circuits?
The 700 µV maximum input offset voltage introduces a systematic error that must be accounted for in high-gain or low-level signal conditioning applications. For example, in a gain-of-100 configuration, this offset translates to up to 70 mV at the output—potentially swamping small sensor signals. While not ideal for ultra-precision analog front ends, it remains acceptable for many industrial control loops and audio processing tasks where calibration or moderate gain structures mitigate the impact through averaging or trimming techniques.
Can the OPA2244PA drive capacitive loads effectively without additional compensation circuitry?
Yes, the OPA2244PA includes internal phase margin enhancement that enables stable operation with capacitive loads typical in long cable runs or digital filter stages. However, for very large capacitors (e.g., >100 nF), external series resistance may still be necessary to prevent peaking or oscillation. Compared to older op-amps lacking such features, this integrated capability reduces design complexity in feedback-intensive environments such as active filters or sensor interfaces.
How does the gain bandwidth product of 430 kHz affect signal integrity in audio or data acquisition systems using the OPA2244PA?
With a gain bandwidth product of 430 kHz, the OPA2244PA can support closed-loop gains up to approximately 140 while maintaining usable bandwidth for many non-audio applications. In audio contexts requiring full 20 kHz bandwidth, only modest gains (e.g., less than 20) are feasible before roll-off begins. This limits its use in high-gain microphone preamps but makes it suitable for line-level buffering or ADC driver stages where lower gain preserves dynamic range and avoids noise amplification.
Is the OPA2244PA suitable for replacing the LT1211CN8#PBF in legacy industrial control panels operating at 5V?
Both devices operate within overlapping supply ranges, including 5V operation, but differ in key parameters. The OPA2244PA consumes half the power (40µA vs. typically higher in comparator-mode parts like the LT1211) and offers true linear amplification rather than comparator functionality. Since the LT1211CN8#PBF is designed as a comparator with push-pull outputs, substituting it with the OPA2244PA would require circuit redesign unless the original application actually uses amplification. The substitution is viable only if the system requires op-amp behavior and benefits from lower quiescent current.
What considerations apply when cascading multiple stages using the OPA2244PA in a multi-stage amplifier configuration?
Cascading increases overall noise, distortion, and potential stability challenges due to cumulative phase shift. Each stage’s bandwidth must accommodate the next stage’s input capacitance and drive requirements. The OPA2244PA’s 0.1V/µs slew rate and 430 kHz GBW impose limits on high-frequency transient response in deep-cascade topologies. Designers should limit total gain per stage and verify unity-gain stability margins under worst-case load conditions to avoid oscillations introduced by accumulated delays.
How does the MicroAmplifier™ architecture of the OPA2244PA influence layout sensitivity and PCB parasitics?
As part of TI’s MicroAmplifier family, the OPA2244PA employs dielectrically isolated CMOS technology that enhances immunity to substrate noise and improves thermal stability compared to traditional bipolar designs. However, like all op-amps, it remains sensitive to poor grounding and trace inductance near inputs. Proper star grounding and minimizing input loop area are essential. The 8-DIP package lacks surface-mount compatibility, so socketing or careful soldering is required to avoid mechanical stress affecting long-term reliability.
Can the OPA2244PA be used in single-supply applications below 5V, and what performance trade-offs occur?
Yes, the OPA2244PA operates down to 2.2V single supply, enabling use in modern low-voltage systems. However, rail-to-rail output swing is not guaranteed; output saturation typically occurs 20–50 mV from each rail depending on load. At 2.7V supply, this restricts usable dynamic range significantly. Additionally, input common-mode range may exclude ground by several hundred millivolts, necessitating careful biasing. These limitations make it less ideal than specialized RRIO (Rail-to-Rail Input/Output) parts for sub-5V precision work.
What role does the 25 mA output current capability play in driving inductive loads or relay coils with the OPA2244PA?
While capable of sourcing 25 mA per channel, the OPA2244PA is not optimized for switching inductive loads directly. Driving relays or motors creates back-EMF that can damage the device unless protected by flyback diodes and current-limiting resistors. The high output current is more useful for driving resistive loads like LEDs or ADC inputs rather than reactive elements. External buffer transistors are recommended for sustained inductive switching to protect the IC and ensure reliable operation.
How does the operating temperature range (-40°C to 85°C) constrain deployment of the OPA2244PA in automotive or outdoor environments?
The commercial temperature grade limits use to non-automotive industrial settings. Automotive-grade equivalents would require -40°C to +125°C qualification. In harsh environments exceeding 85°C ambient, derating of supply voltage and gain accuracy becomes necessary. Thermal shutdown protection is not specified, so heat buildup from continuous high-power operation could lead to premature failure. Thus, the OPA2244PA is best suited for controlled indoor or benign outdoor installations rather than extreme climates.
Why might someone choose the OPA2244UA/2K5 over the OPA2244PA despite different packaging?
The OPA2244UA/2K5 is a surface-mount version packaged in an SOIC-8 format, offering higher reliability and smaller footprint than the through-hole DIP variant. It also comes in tape-and-reel for automated assembly. The PA suffix indicates plastic DIP, which is preferred for prototyping or hand-soldered boards. Choosing between them depends on manufacturing process: UA for mass production, PA for development or repair scenarios where socketing and accessibility matter more than board real estate.
What are the implications of the 10 nA input bias current in the OPA2244PA when interfacing with high-impedance sensors?
A 10 nA input bias current generates significant voltage drops across high-resistance source impedances. For instance, with a 1 MΩ source resistor, this produces a 10 mV offset—comparable to typical offset errors. In photodiode transimpedance amplifiers or piezoelectric sensor buffers, this necessitates either low-impedance drivers or guarding techniques to minimize leakage paths. While better than older bipolar op-amps, it’s still higher than zero-drift or chopper-stabilized types, limiting suitability for ultra-sensitive measurements without compensation.
How do substitute components like the LT1215ACN8#PBF compare to the OPA2244PA in terms of speed and dynamic range?
The LT1215ACN8#PBF offers superior slew rate and bandwidth, making it preferable for faster settling or higher frequency applications. However, it typically consumes more power and exhibits higher input offset drift over temperature. The OPA2244PA trades speed for lower quiescent current and better DC precision under moderate bandwidth demands. Selection hinges on whether transient response or power efficiency dominates the design constraints—speed favors LT1215, efficiency favors OPA2244PA.
What precautions are needed when using the OPA2244PA in floating supply configurations?
Floating supplies require symmetric bypassing on both rails and careful attention to ground reference points in the system. Since the 8-PDIP package has limited internal decoupling, external capacitors (e.g., 0.1 µF ceramic) should be placed as close as possible to each power pin. Isolation between supply domains prevents ground loops, and input signals must remain within the absolute maximum ratings relative to any supply rail. Failure to decouple properly can cause latch-up or erratic behavior due to charge injection or substrate coupling.
Does the lack of surface-mount variant affect long-term supply chain resilience for the OPA2244PA?
Yes. The through-hole PDIP package is increasingly phased out in favor of SMT footprints, increasing obsolescence risk. Manufacturers may discontinue production without migration to newer packages. Using the OPA2244UA/2K5 instead provides continuity through standard pick-and-place lines and broader distributor stocking. Unless legacy tooling mandates DIP, adopting the surface-mount alternative improves supply security and aligns with industry trends toward miniaturization and automation.
How does the RoHS3 compliance status of the OPA2244PA impact regulatory acceptance in global markets?
RoHS3 compliance ensures adherence to the latest European Union restrictions on hazardous substances, including exemptions for certain medical and industrial equipment. It satisfies import requirements in most developed economies, avoiding customs delays or market access barriers. However, some emerging markets still accept RoHS2-only components, so regional certification checks remain necessary. Overall, RoHS3 status reflects alignment with current environmental standards, reducing legal and logistical friction during international deployment.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments OPA2244PA

Product Attribute OPA2244PAG4 OPA2244UA OPA2244EA/250G4 OPA2244EA/2K5G4
Part Number OPA2244PAG4 OPA2244UA OPA2244EA/250G4 OPA2244EA/2K5G4
Manufacturer Luminary Micro / Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Base Product Number - DAC34H84 MAX500 ADS62P42
Amplifier Type - - - -
Number of Circuits - - - -
Gain Bandwidth Product - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Current - Output / Channel - - - -
Slew Rate - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Current - Input Bias - - - -
Series - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Output Type - Current - Unbuffered Voltage - Buffered -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Current - Supply - - - -
Voltage - Input Offset - - - -
Voltage - Supply Span (Max) - - - -
Voltage - Supply Span (Min) - - - -

OPA2244PA Datasheet PDF

Download OPA2244PA pdf datasheets and Texas Instruments documentation for OPA2244PA - Texas Instruments.

PCN Assembly/Origin
Mult Dev 13/Apr/2023.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

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Brazil 7
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New Zealand 5
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DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
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OPA2244PA Image

OPA2244PA

Texas Instruments
32D-OPA2244PA

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