OPA227UA/2K5In StockTexas Instruments
OPA227UA/2K5 is a precision op-amp with 3nV/√Hz noise and 10µV offset, 8MHz GBW, SOIC-8. From $0.83 at 365+pcs. In stock, ships globally.
- Manufacturer
- Texas Instruments
- Package
- SOIC-8
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- OPA227UA/2K5 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
Key Features
- Ultra-low noise: 3nV/√Hz for sensitive measurements
- 10µV max input offset voltage
- 8MHz gain-bandwidth product
- High open-loop gain: 160dB
- Wide supply: ±2.5V to ±18V dual supply
Applications
Essential for precision instrumentation amplifiers, strain gauge bridges, thermocouple amplifiers, audio preamps, and data acquisition front-ends where low noise and high accuracy are critical requirements.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.01 µA |
| Bias Current-Max (IIB) @25C | 0.01 µA |
| Common-mode Reject Ratio-Min | 120dB |
| Common-mode Reject Ratio-Nom | 138dB |
| Frequency Compensation | YES |
| Input Offset Current-Max (IIO) | 0.01 µA |
| Input Offset Voltage-Max | 75 µV |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Low-Bias | NO |
| Low-Offset | YES |
| Micropower | NO |
| Neg Supply Voltage Limit-Max | -18 V |
| Neg Supply Voltage-Nom (Vsup) | -15 V |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 2.3V/us |
| Subcategory | Operational Amplifier |
| Supply Current-Max | 3.8mA |
| Supply Voltage Limit-Max | 18V |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 8000 |
| Voltage Gain-Min | 3980000 |
| Wideband | NO |
| ## OPA227UA/2K5 Alternates Showing results | Image |
| Package | SOIC-8 |
Compliance & Regulatory
| RoHS Status | Compliant |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for OPA227UA/2K5:
suggested
suggested
suggested
suggested
Frequently Asked Questions
What is the noise performance of OPA227?
OPA227 features 3nV/√Hz input voltage noise density, among the lowest available. Combined with 0.4pA/√Hz current noise, it's optimized for source impedances below 10kΩ. For higher source impedances, the JFET-input OPA627 may be better.
How does OPA227 compare to OPA277?
OPA227 prioritizes low noise (3nV/√Hz) while OPA277 prioritizes low offset (10µV max). OPA227 has higher bandwidth (8MHz vs 1MHz). Choose OPA227 for noise-sensitive applications and OPA277 for DC precision with low bandwidth needs.
What supply voltage does OPA227 require?
OPA227 operates on dual supply from ±2.5V to ±18V. Optimal performance is at ±15V. At lower supply voltages, output swing decreases proportionally. The device includes internal ESD protection and latch-up immunity.
Can OPA227 be used in audio applications?
Yes, OPA227 is excellent for audio due to its 3nV/√Hz noise floor and 8MHz bandwidth. It's used in studio microphone preamps, phono stages, and high-end headphone amplifiers. THD is below 0.0002% at audio frequencies, providing exceptional transparency.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $13.0800 | $13.08 |
| 25+ | $2.3300 | $58.25 |
| 50+ | $2.2000 | $110.00 |
| 225+ | $0.8933 | $200.99 |
| 295+ | $0.8597 | $253.61 |
| 365+ | $0.8261 | $301.53 |
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