OPA227UA Texas Instruments amplifiers (SOIC-8) In Stock
OPA227UA is a precision low-noise op-amp by Texas Instruments with 8MHz GBW, 3nV noise, +/-18V supply, in SOIC-8 package. From $3.75/unit, in stock, ships globally, MOQ 1.
- Manufacturer
- Texas Instruments
- Package
- SOIC-8
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- OPA227UA Datasheet PDF
- Category
- amplifiers
- Price
- From $0.8261(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Applications
Ideal for precision instrumentation amplifiers, medical sensing front-ends, and audio signal conditioning where ultra-low noise is critical. Also used in data acquisition systems, strain gauge bridges, and high-fidelity audio preamplifiers requiring uV-level accuracy.
Specifications
| gainBandwidthProduct | 8MHz |
| voltageNoiseDensity | 3nV/rtHz |
| supplyVoltage | +/-2.25 to +/-18V |
| inputOffsetVoltage | 25uV |
| cmrr | 138dB |
| slewRate | 2.3V/us |
| supplyCurrentPerChannel | 2.5mA |
| Package | SOIC-8 |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for OPA227UA:
Frequently Asked Questions
What is the OPA227UA used for?
The OPA227UA is a precision low-noise op-amp designed for high-accuracy signal amplification in instrumentation, medical equipment, strain gauge bridges, and audio preamplifiers where 3nV noise and 25uV offset are critical.
What package does the OPA227UA come in?
The OPA227UA comes in an 8-pin SOIC (SOIC-8) package, making it compatible with standard PCB footprints. The U suffix denotes the SOIC-8 package from Texas Instruments.
What is the supply voltage range of the OPA227UA?
The OPA227UA operates from +/-2.25V to +/-18V dual supply (4.5V to 36V total), offering flexibility for both low-voltage portable and high-voltage industrial designs.
What are alternatives to the OPA227UA?
Common alternatives include the OPA228 (lower noise 1.8nV), AD797 from Analog Devices (ultralow noise), LT1028 from Linear Technology, and the OPA2227 dual-channel version for space-saving designs.
Is the OPA227UA RoHS compliant?
Yes, the OPA227UA is RoHS compliant and lead-free, suitable for use in environmentally regulated products. It carries MSL rating 1, meaning no special moisture precautions are required for storage.
Related Guides
24LC01B I2C EEPROM Design Guide: Pinout, Write Timing, and Package Selection
Complete application note for the Microchip 24LC01B 1 Kbit I2C EEPROM: address wiring, pull-up sizing, acknowledge polling, page-write alignment, and package selection.
Jun 1, 2026
AD8531ARTZ-REEL7 Application Note: High-Current Op-Amp Design Guide
A complete design guide for the AD8531ARTZ-REEL7 250 mA rail-to-rail op-amp: decoupling, thermal budgeting, capacitive load stability, and PCB layout best practices.
Jun 1, 2026
AD7607BSTZ Application Note: 8-Channel Simultaneous Sampling ADC Design Guide
Complete design guide for the AD7607BSTZ 8-channel 14-bit simultaneous-sampling ADC: power supply, grounding, anti-aliasing, interface, and common pitfalls.
May 31, 2026
24LC01B-I/SN Selection Guide: How to Choose the Right Microchip I2C EEPROM Variant
Compare 24LC01B-I/SN, MSOP-8, SOT-23-5, and other Microchip 1 Kbit I2C EEPROM variants. Pick the right package, temp grade, and stocking option for your design.
May 31, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.7500 | $3.75 |
| 2+ | $2.8000 | $5.60 |
| 4+ | $2.5000 | $10.00 |
| 225+ | $0.8933 | $200.99 |
| 295+ | $0.8597 | $253.61 |
| 365+ | $0.8261 | $301.53 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”