OPA227UIn StockTexas Instruments
OPA227U is a high-precision, low-noise operational amplifier from Texas Instruments. It features 120 dB CMRR, 0.01 µA bias current, and voltage-feedback architecture. From $2.16, in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- OPA227U Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.1648(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 voltage-feedback operational amplifier with 120 dB minimum CMRR
- Extremely low input bias current of 0.01 µA for high-impedance signal conditioning
- High precision with 138 dB typical CMRR, ideal for sensitive measurement applications
- Frequency compensation built-in, simplifying circuit design and ensuring stability
- Available in Small Outline Package (SOIC) for compact PCB layouts
Applications
The OPA227U is widely used in precision instrumentation and medical equipment where ultra-low noise and high accuracy are critical. It excels in audio signal processing, sensor interface circuits, and data acquisition front-ends that require minimal offset and high common-mode rejection. Its low bias current also makes it well-suited for photodiode amplifiers, strain gauge bridges, and industrial measurement systems.
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 | TUBE |
| 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 |
| ## OPA227U Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| 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 OPA227U:
Frequently Asked Questions
What is the input bias current of the OPA227U?
The OPA227U has a maximum input bias current (IIB) of 0.01 µA at 25°C, making it ideal for high-impedance sensor interfaces and precision measurement circuits where leakage current must be minimized.
What is the CMRR of the OPA227U?
The OPA227U offers a minimum common-mode rejection ratio (CMRR) of 120 dB and a typical CMRR of 138 dB, ensuring excellent rejection of common-mode noise in differential signal applications.
What are typical applications for the OPA227U?
Typical applications include precision instrumentation amplifiers, medical diagnostic equipment, audio signal processing, photodiode transimpedance amplifiers, strain gauge bridges, and industrial data acquisition systems requiring low noise and high accuracy.
What package is the OPA227U available in?
The OPA227U is available in a Small Outline (SOIC) package, which is suitable for surface-mount PCB assembly and supports compact, high-density board designs.
Can the OPA227U replace other precision op-amps?
The OPA227U is pin-compatible with many industry-standard precision op-amps. When evaluating alternatives, compare key specs such as CMRR (120 dB min), bias current (0.01 µA max), and noise performance to ensure the replacement meets your application requirements.
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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+ | $6.7200 | $6.72 |
| 2+ | $6.0000 | $12.00 |
| 5+ | $4.3680 | $21.84 |
| 46+ | $3.8610 | $177.61 |
| 89+ | $2.2493 | $200.19 |
| 116+ | $2.1648 | $251.12 |
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