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HomeProductsIntegrated Circuits (ICs)Linear - Amplifiers - Instrumentation, OP Amps, Buffer AmpsOPA2244EA/250G4
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OPA2244EA/250G4 - Texas Instruments

Manufacturer Part Number
OPA2244EA/250G4
Manufacturer
Texas Instruments
Allelco Part Number
98D-OPA2244EA/250G4
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
28,500 pcs available, New & Original
Parts Description
IC OPAMP GP 2 CIRCUIT 8VSSOP
Package
8-VSSOP
Data sheet
OPA2244EA/250G4.pdf

PCN Obsolescence/ EOL

EOL 22/May/2023.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 28500
  • Unit Price: $1.459
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $1.459 $1.46
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

OPA2244EA/250G4 Tech Specifications
Texas Instruments - OPA2244EA/250G4 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - OPA2244EA/250G4

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-VSSOP
Slew Rate 0.1V/µs
Series MicroAmplifier™
Package / Case 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Package Tape & Reel (TR)
Output Type -
Product Attribute Attribute Value
Operating Temperature -40°C ~ 85°C
Number of Circuits 2
Mounting Type Surface Mount
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) 2 (1 Year)
REACH Status REACH Unaffected
ECCN EAR99

Frequently Asked Questions(FAQ)

How does the OPA2244EA/250G4 compare to other dual operational amplifiers in terms of power consumption and supply voltage range for battery-powered applications?
The OPA2244EA/250G4 draws only 40 µA per channel, which is significantly lower than many general-purpose op-amps such as the LM358 (typically 700 µA) or the LM2904 (around 600 µA). This low quiescent current makes it well-suited for low-power systems. Its supply voltage spans from 2.2 V to 36 V, offering flexibility across a wide range of single-supply and dual-supply designs. While some precision parts like the OPA234 offer even lower offset voltages, they often consume more current. The OPA2244EA/250G4 strikes a balance between performance and efficiency, making it suitable for portable and industrial sensors where both voltage headroom and energy budget are constrained.
What design considerations should be taken into account when using the OPA2244EA/250G4 in a high-impedance sensor interface circuit operating at 2.5 V?
With an input bias current of just 10 nA and a typical input offset voltage of 700 µV, the OPA2244EA/250G4 performs adequately in moderate-impedance environments but may introduce measurable errors in very high-impedance nodes. For a 2.5 V supply, noise margins are reduced compared to higher-voltage rails, so layout parasitics and PCB contamination can affect stability. It's advisable to keep source impedances below 1 MΩ and use guard rings or shielding if necessary. Additionally, the gain bandwidth product of 430 kHz limits closed-loop gains above approximately 200 to maintain adequate phase margin. Proper decoupling with a 1 µF capacitor near the supply pins is essential to suppress rail-induced oscillations.
Can the OPA2244EA/250G4 safely drive capacitive loads without additional compensation, and how does this impact stability in unity-gain configurations?
The OPA2244EA/250G4 can drive moderate capacitive loads up to several hundred picofarads in unity-gain buffer mode without instability, thanks to its internal compensation. However, driving larger capacitive loads—such as those found in long cables or unshielded traces—can lead to peaking or oscillation due to added phase lag. In such cases, a small series resistor (typically 10–100 Ω) at the output is recommended to isolate the amplifier from the load capacitance and ensure stability. This practice is especially important in precision signal chains where ringing could corrupt data integrity.
Why might someone choose the OPA2244EA/250G4 over the LM2904ST despite differences in pin compatibility, and what are the key trade-offs involved?
The OPA2244EA/250G4 offers superior input characteristics, including lower input bias current (10 nA vs. ~25 nA for LM2904) and better input offset voltage (700 µV vs. 2 mV), making it preferable in precision analog front-ends. It also provides higher output current (25 mA vs. 20 mA) and operates over a wider temperature range. However, it consumes more power (40 µA vs. ~600 µA total for LM2904) and lacks rail-to-rail output swing. If ultra-low power or RRO output is critical, the LM2904 remains competitive. Pin compatibility varies—the VSSOP package differs from standard SOIC—so layout planning must account for footprint differences.
How does the slew rate of 0.1 V/µs in the OPA2244EA/250G4 limit its performance in audio or transient-response applications?
A slew rate of 0.1 V/µs implies that the amplifier cannot respond quickly to large-amplitude changes. For example, a 1 V peak sine wave at 15 kHz will require a maximum slew rate of about 0.094 V/µs, which is within spec, but a 2 V peak signal at the same frequency would exceed it, causing distortion. In audio applications, this limits the usable bandwidth for high-fidelity signals unless gain is reduced. For dynamic sensing or control loops requiring fast settling, this constraint may necessitate higher-slew-rate alternatives, though the 430 kHz GBW helps maintain reasonable bandwidth at moderate gains.
What are the implications of the OPA2244EA/250G4’s operating temperature range (-40°C to 85°C) on reliability in automotive or industrial environments?
The -40°C to 85°C range indicates suitability for commercial and industrial applications but falls short of full automotive qualification (which typically requires -40°C to 125°C). In harsh environments with thermal cycling or elevated ambient temperatures, long-term drift in offset voltage and bias current may become significant. Engineers should derate performance parameters accordingly and consider thermal management. While not inherently unreliable in industrial settings, continuous operation near 85°C may accelerate aging effects, particularly in high-stress analog subsystems.
How does the MicroAmplifier™ architecture of the OPA2244EA/250G4 benefit system integration compared to discrete transistor-based amplifiers?
The MicroAmplifier™ family integrates matched transistors and bias networks on a monolithic substrate, ensuring better matching between channels—critical in differential or instrumentation configurations. This results in improved CMRR and PSRR relative to discrete solutions. Integrated features like built-in protection diodes and robust ESD handling simplify board-level reliability. For the OPA2244EA/250G4, this means consistent performance across two channels in space-constrained designs, reducing component count and potential mismatch errors common in hand-assembled analog stages.
What layout practices are recommended to minimize noise and crosstalk when placing multiple OPA2244EA/250G4 amplifiers on a densely populated PCB?
Each amplifier should have dedicated decoupling capacitors (100 nF ceramic + 1 µF bulk) placed as close as possible to the supply pins. Ground planes should be solid beneath the package, and guard traces can isolate high-impedance nodes. Since the two channels share a substrate, crosstalk can occur if feedback paths run adjacent to each other; routing them orthogonally and maintaining separation reduces coupling. Thermal vias under the exposed pad improve heat dissipation and stabilize bias currents. Avoiding long leads and minimizing loop areas in feedback networks further preserves signal integrity.
Is the OPA2244EA/250G4 suitable for driving relays or solenoid valves directly, and what external components are needed?
The OPA2244EA/250G4 can deliver up to 25 mA per channel, which is sufficient to drive small relays or optoisolators. However, inductive loads require flyback protection—a Schottky diode or TVS across the load is essential to clamp back EMF. A series resistor may be needed to limit inrush current during switching. Because the amplifier’s output stage isn’t designed for sustained high-current loads, prolonged operation above 10 mA should be avoided to prevent thermal stress. External buffering with a MOSFET is advisable for higher-power solenoids.
How does the Moisture Sensitivity Level (MSL) of 2 for the OPA2244EA/250G4 affect assembly process control, and what precautions apply during reflow soldering?
MSL 2 indicates the part can withstand one floor life period before baking if stored improperly, typically 1 year under JEDEC standard conditions. Exposure to humid environments beyond this window risks delamination during reflow. To mitigate, store parts in dry cabinets (<10% RH) and bake if humidity exposure exceeds 30 days. During reflow, adhere to the manufacturer’s recommended profile: peak temperature <260°C, time above liquidus <60 seconds. Proper handling ensures solder joint reliability and prevents popcorning defects.
Can the OPA2244EA/250G4 be used in a split-supply configuration, and what adjustments are needed compared to single-supply operation?
Yes, the OPA2244EA/250G4 supports dual supplies from ±1.1 V to ±18 V. In split-supply mode, ensure input common-mode range includes ground or slightly below to avoid clipping. Output swing approaches supply rails but may drop by a few hundred millivolts depending on load. Biasing inputs at mid-supply is unnecessary since the input stage allows rail-to-rail-like behavior, but proper decoupling remains critical. Noise performance improves with higher supply rails, enhancing SNR in precision analog chains.
What substitutes or alternative parts should be evaluated if the OPA2244EA/250G4 becomes unavailable due to obsolescence or supply chain issues?
Potential substitutes include the OPA2244EA/2K5 (same die, different packaging), BA3472RFVM-TR (similar performance, lower cost), and LM2904 variants (though with inferior specs). The LM358ST offers comparable functionality but with higher power and worse offset. Careful evaluation of input bias current, supply range, and package compatibility is required. Substitution should involve functional testing under worst-case conditions, especially regarding noise, stability, and output drive capability in the target application.
How does the gain bandwidth product of 430 kHz constrain closed-loop gain selection in active filter designs using the OPA2244EA/250G4?
The GBW of 430 kHz means that at a closed-loop gain of N, the effective bandwidth is approximately 430 kHz / N. For a second-order Butterworth low-pass filter with a cutoff at 10 kHz, unity gain is impractical; a gain of 2 gives ~215 kHz bandwidth, which may suffice, but phase margin degrades near the cutoff. Designers must balance gain, bandwidth, and stability—higher gains reduce usable bandwidth and increase susceptibility to parasitic capacitances. Compensation networks or op-amp selection with higher GBW may be necessary for sharper rolloffs.
What role does the 700 µV input offset voltage play in measurement accuracy, and how can it be compensated in precision applications?
At 700 µV, the offset introduces an error equivalent to 0.07% of a 1 V signal. In high-gain stages (e.g., 100x), this translates to 70 mV output error—significant in low-voltage sensor readings. Offset null pins are not provided on the OPA2244EA/250G4, so software calibration or external trimming resistors may be required. Alternatively, averaging techniques or auto-zero circuits can mitigate drift. For critical measurements, consider post-processing correction based on factory-calibrated offset data if available.
How does the Tape & Reel packaging (TR) impact automated assembly and inventory management for high-volume production using the OPA2244EA/250G4?
Tape & Reel packaging enables efficient pick-and-place processing, reducing manual handling and improving placement accuracy. It aligns with standard SMT lines, minimizing downtime during mass production. From an inventory standpoint, it simplifies storage logistics and reduces risk of damage compared to loose DIP or tube forms. However, procurement must account for reel specifications (e.g., 2,500 units/reel) to optimize feeder capacity and avoid mismatches on assembly machines. Lead-free compliance ensures compatibility with modern reflow profiles.
What are the limitations of using the OPA2244EA/250G4 in high-frequency signal conditioning tasks exceeding 100 kHz?
Due to its 430 kHz gain bandwidth product, closed-loop gains above 4–5 severely limit usable bandwidth. Even at unity gain, the amplifier begins to attenuate signals above ~100 kHz, introducing phase shift and gain error. Additionally, the 0.1 V/µs slew rate causes waveform distortion for large excursions. Layout parasitics and capacitive loading exacerbate instability. For RF or broadband applications, specialized amplifiers with higher GBW and slew rates are preferred. The OPA2244EA/250G4 remains viable only for sub-100 kHz signals or low-gain buffering.
How does RoHS3 compliance and REACH status of the OPA2244EA/250G4 influence global regulatory acceptance, particularly in EU and North American markets?
RoHS3 compliance confirms absence of restricted substances like lead, mercury, and cadmium, meeting EU Directive 2011/65/EU. REACH unaffected status indicates no SVHC (Substances of Very High Concern) content above threshold levels, simplifying compliance documentation. These attributes ensure smooth market access in Europe, the U.S., and other regulated regions without additional testing or certification burdens. End-of-life traceability and conflict mineral reporting requirements are also easier to satisfy, supporting responsible sourcing initiatives.
When designing a precision current-to-voltage converter with the OPA2244EA/250G4, how does the feedback resistor value affect noise, bandwidth, and stability?
The transimpedance gain is set by the feedback resistor Rf. Higher Rf increases sensitivity but also amplifies Johnson-Nyquist noise (proportional to √Rf) and may push the amplifier toward instability due to increased phase lag. For example, Rf = 1 MΩ introduces ~4 nV/√Hz noise density, which may swamp small photocurrent signals. Bandwidth decreases as GBW / (1 + Rf/Rin), so large Rf reduces usable speed. A practical compromise might use Rf = 100 kΩ–500 kΩ with a parallel capacitor to limit bandwidth and noise. Stability is maintained by keeping the pole formed by Rf and Cload within the amplifier’s phase margin envelope.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments OPA2244EA/250G4

Product Attribute OPA2244EA/2K5G4 OPA2244UA/2K5G4 OPA2244EA/250 OPA2244EA/2K5
Part Number OPA2244EA/2K5G4 OPA2244UA/2K5G4 OPA2244EA/250 OPA2244EA/2K5
Manufacturer Texas Instruments Luminary Micro / Texas Instruments Texas Instruments Texas Instruments
Voltage - Supply Span (Min) - - - -
Current - Input Bias - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Series - - - -
Number of Circuits - - - -
Slew Rate - - - -
Current - Output / Channel - - - -
Voltage - Input Offset - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Output Type - Current - Unbuffered Voltage - Buffered -
Mounting Type - Surface Mount Through Hole Surface Mount
Amplifier Type - - - -
Current - Supply - - - -
Voltage - Supply Span (Max) - - - -
Gain Bandwidth Product - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C

OPA2244EA/250G4 Datasheet PDF

Download OPA2244EA/250G4 pdf datasheets and Texas Instruments documentation for OPA2244EA/250G4 - Texas Instruments.

PCN Obsolescence/ EOL
EOL 22/May/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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OPA2244EA/250G4 Image

OPA2244EA/250G4

Texas Instruments
98D-OPA2244EA/250G4

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