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Texas Instruments OPA2244EA/2K5G4
- Part No.:
- OPA2244EA/2K5G4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2244EA/2K5G4.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,335
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Product details
Overview
OPA2244EA/2K5G4 from Texas Instruments (formerly Burr-Brown) is a dual, rail-to-rail input/output, micropower operational amplifier in MSOP-8 package. It delivers 430kHz gain-bandwidth, 50µA/channel quiescent current, and operates from single supply (2.2V–36V) or dual supply (±1.1V–±18V), making it ideal for battery-powered portable instrumentation and low-power sensor signal conditioning.
For engineers reviewing the OPA2244EA/2K5G4 datasheet, OPA2244EA/2K5G4 pinout, OPA2244EA/2K5G4 application, or OPA2244EA/2K5G4 equivalent, key selection criteria include its guaranteed 50µA/channel IQ over –40°C to +85°C, channel separation of 140dB, input common-mode range extending to V–, and unity-gain stability without phase inversion-critical for precision low-voltage sensing and long-life portable systems.
Technical Context
The OPA2244EA/2K5G4 integrates two fully independent amplifiers with no crosstalk coupling, enabling simultaneous operation under overload or overdrive without interaction. Its input stage uses P-channel JFETs for ultra-low bias current (–25nA typ), while output stage supports rail-to-rail swing with ±12mA short-circuit current capability.
Designed for single-supply operation, it features ground-sensing input common-mode range (0V to V+–0.9V) and maintains stable performance across supply voltages from 2.6V to 36V. The device is specified with 86dB open-loop gain, 72dB CMRR at ±18V, and 150µs 0.01% settling time for 10V step-enabling accurate DC-coupled amplification in space-constrained industrial and medical front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Quiescent Current | 50 µA per amplifier - enables >1-year battery life in coin-cell-powered devices |
| Gain-Bandwidth Product | 430 kHz - supports medium-speed sensor interfaces (e.g., thermocouple, RTD) without instability |
| Input Offset Voltage | ±1.5 mV max - ensures ≤0.015% error in 10V full-scale measurement systems |
| Common-Mode Rejection | 72 dB min at ±18V - rejects noise in high-impedance single-supply transducer bridges |
| Channel Separation | 140 dB - prevents signal leakage between dual-channel functions like differential pair amplification |
| Supply Voltage Range | +2.2V to +36V single or ±1.1V to ±18V dual - interoperable with legacy 5V, modern 3.3V, and industrial 24V rails |
| Operating Temperature | –40°C to +85°C - qualified for automotive cabin, industrial control, and outdoor portable equipment |
Pinout & Package
OPA2244EA/2K5G4 is housed in an 8-pin MSOP (VSSOP-DGK) package measuring 3.0mm × 3.0mm × 1.0mm, optimized for high-density PCB layouts and automated assembly. Thermal resistance θJA is 200°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | V– (Negative Supply) | Ground or negative rail reference for both amplifiers; supports true single-supply operation down to 0V |
| 2 | +In A | Non-inverting input of Amplifier A; high-impedance (10⁹Ω || 2pF) for minimal loading of sensors |
| 3 | –In A | Inverting input of Amplifier A; matched to +In A for precision differential gain configurations |
| 4 | Out A | Amplifier A output; rail-to-rail swing (0.1V to V+–0.75V) into 20kΩ load |
| 5 | Out B | Amplifier B output; electrically isolated from Out A to prevent inter-channel coupling |
| 6 | –In B | Inverting input of Amplifier B; independent bias network ensures <140dB channel separation |
| 7 | +In B | Non-inverting input of Amplifier B; identical electrical characteristics to +In A for matched dual-channel design |
| 8 | V+ | Positive supply rail shared by both amplifiers; accepts up to +36V with internal protection |
Key Features
| Feature | Design Value |
|---|---|
| MicroPower Operation | 50 µA/channel IQ enables multi-year operation on CR2032 batteries in always-on monitoring nodes |
| Rail-to-Rail Input/Output | Input common-mode includes V–; output swings within 100mV of rails - maximizes dynamic range in 3.3V systems |
| Unity-Gain Stable | No external compensation required - simplifies layout and eliminates risk of oscillation in gain=1 buffers |
| No Phase Inversion | Input stage remains linear beyond supply rails - prevents latch-up during overvoltage transients in sensor inputs |
| High Channel Separation | 140 dB isolation allows independent use of both amplifiers in mixed-signal signal chains without crosstalk |
Applications
| Battery-Powered Instrumentation | Portable Medical Sensors |
|---|---|
|
Use Scenario: Handheld multimeter front-end amplifying mV-level thermocouple outputs with 3.3V Li-ion supply. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier providing gain and offset correction before ADC sampling. Use Value: 50µA/channel IQ extends battery life to >2 years; rail-to-rail I/O captures full thermocouple range (–5mV to +75mV) without level-shifting. |
Use Scenario: Wearable ECG patch conditioning electrode signals with ultra-low power budget. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier first stage rejecting common-mode interference. Use Value: 140dB channel separation prevents cross-talk between lead-I and lead-II paths; 22nV/√Hz noise preserves microvolt-level cardiac waveforms. |
| Industrial Sensor Transmitters | PCMCIA Card Signal Conditioning |
|
Use Scenario: 4–20mA loop-powered pressure transmitter operating from 24V supply with local analog processing. IC Role / Device Role / Timing Role: Low-drift buffer and voltage-to-current converter driver. Use Value: ±4µV/°C offset drift minimizes temperature-induced calibration drift; 36V absolute max rating withstands industrial surge events. |
Use Scenario: PCMCIA data acquisition card digitizing analog sensor inputs in laptop-based test equipment. IC Role / Device Role / Timing Role: Dual-channel anti-aliasing filter and gain stage preceding SAR ADC. Use Value: 430kHz GBW supports 100ksps sampling with <0.01% settling; MSOP-8 footprint saves critical board area in compact card format. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333AIDR | Zero-drift architecture (0.02µV/°C drift), higher IQ (17µA), lower noise (0.65µVpp), 350kHz GBW | Better for DC-critical applications (e.g., precision weigh scales); less suitable for wide-temp battery systems due to higher IQ | Choose OPA2244EA/2K5G4 when ultra-low IQ dominates over zero-drift requirement and 430kHz bandwidth is needed |
| MCP6022-E/SN | Higher IQ (100µA), wider supply (1.8V–6V), lower GBW (1MHz), no extended temp grade | Optimized for 3.3V/5V digital systems; lacks –40°C to +85°C qualification and 36V tolerance | Choose OPA2244EA/2K5G4 for industrial-grade reliability, wide supply flexibility, and extended temperature support |
Compared with OPA2333AIDR and MCP6022-E/SN, the OPA2244EA/2K5G4 uniquely balances micropower efficiency (50µA), wide supply range (2.2V–36V), and industrial temperature qualification - making it the only option among the three qualified for long-life, wide-input-range, battery-or-line-powered embedded systems.
Availability
OPA2244EA/2K5G4 is available at Aetrix Electronics and suitable for battery-powered instrumentation, portable medical sensors, industrial sensor transmitters, and PCMCIA card signal conditioning requiring stable component supply across extended temperature and voltage ranges.
Supply support for OPA2244EA/2K5G4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments acquired Burr-Brown in 2000 and continues its legacy of precision analog ICs, emphasizing high-performance, low-power, and robust industrial-grade solutions.
The OPA2244EA/2K5G4 belongs to TI's MicroAmplifier™ series, designed specifically for space- and power-constrained applications where precision, reliability, and wide supply operation are essential - including portable test equipment, battery management, and sensor interface modules.
FAQ
What is the maximum supply voltage rating for the OPA2244EA/2K5G4?
The OPA2244EA/2K5G4 has an absolute maximum supply voltage of 36V between V+ and V– pins. It is fully specified for operation from +2.2V to +36V single supply or ±1.1V to ±18V dual supply, with all key parameters guaranteed over this full range. Exceeding 36V risks permanent damage per the Absolute Maximum Ratings table.
Does the OPA2244EA/2K5G4 require external compensation for unity-gain stability?
No, the OPA2244EA/2K5G4 is internally compensated and unity-gain stable. It does not require external capacitors or resistors to maintain stability in gain-of-1 configurations such as voltage followers or non-inverting buffers - a key advantage confirmed in the Applications Information section of the datasheet.
What is the input common-mode voltage range of the OPA2244EA/2K5G4?
The OPA2244EA/2K5G4 supports an input common-mode voltage range from V– to (V+) – 0.9V. This includes ground (0V) when operated from single supply, enabling direct interfacing with sensors whose outputs swing near ground - a critical feature for low-side current sensing and single-supply transducer amplification.
How does channel separation impact dual-amplifier usage in the OPA2244EA/2K5G4?
The OPA2244EA/2K5G4 provides 140dB typical channel separation, meaning signal injected into Amplifier A's input produces less than –140dB (0.0001%) crosstalk at Amplifier B's output. This enables truly independent operation - for example, using one amplifier for sensor buffering and the other for reference voltage conditioning - without mutual interference even under overload conditions.
Is the OPA2244EA/2K5G4 RoHS-compliant and lead-free?
Yes, the OPA2244EA/2K5G4 is RoHS-compliant and lead-free. Per TI's Packaging Information, it carries a "Green (RoHS & no Sb/Br)" eco plan with NIPDAU or NIPDAUAG lead finish and JEDEC MSL Level-2-260°C-1 year moisture sensitivity rating - meeting global environmental compliance requirements for surface-mount assembly.
OPA2244EA/2K5G4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- MicroAmplifier™
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 0.1V/µs
- Gain Bandwidth Product:
- 430 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 nA
- Voltage - Input Offset:
- 700 µV
- Current - Supply:
- 40µA (x2 Channels)
- Current - Output / Channel:
- 25 mA
- Voltage - Supply Span (Min):
- 2.2 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
OPA2244EA/2K5G4 FAQ
1.How can I place an order for OPA2244EA/2K5G4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2244EA/2K5G4 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for OPA2244EA/2K5G4 reliable?
The price and inventory of OPA2244EA/2K5G4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2244EA/2K5G4 is usually 5 days.
3.What payment methods are accepted for OPA2244EA/2K5G4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2244EA/2K5G4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2244EA/2K5G4?
OPA2244EA/2K5G4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2244EA/2K5G4 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for OPA2244EA/2K5G4?
For technical support, including OPA2244EA/2K5G4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2244EA/2K5G4 requirements.
6.How does Aetrix verify that OPA2244EA/2K5G4 is sourced from the original manufacturer or authorized distributors?
All OPA2244EA/2K5G4 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that OPA2244EA/2K5G4 meets industry standards.
7.What is the process for return or replacement of OPA2244EA/2K5G4?
All OPA2244EA/2K5G4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2244EA/2K5G4, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The OPA2244EA/2K5G4 part is unused and in its original packaging.
Return procedure for OPA2244EA/2K5G4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA2244EA/2K5G4 Tags
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