OPA2234U Texas Instruments Integrated Circuit (Other) In Stock
OPA2234U is a dual precision low-power operational amplifier by Texas Instruments, offering 0.35MHz gain-bandwidth product with ultra-low bias current of 25pA and a supply range of 3V to 28V in an 8-pin SOIC package. Key specs: 91dB min CMRR, 0.35MHz GBW, 25pA max bias current. Available in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- OPA2234U Datasheet PDF
- Category
- Integrated Circuit
- 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 input bias current of 25pA max for precision signal conditioning
- Wide supply voltage range from 3V to 28V supporting single or dual supply operation
- High common-mode rejection ratio of 91dB minimum and 106dB typical
- Dual op-amp in compact 8-pin SOIC package with internal frequency compensation
- 0.35MHz gain-bandwidth product optimized for precision low-frequency amplification
Applications
The OPA2234U is ideal for precision signal conditioning, sensor amplification, and data acquisition front-end circuits where low input bias current and high CMRR are essential. Its dual channel configuration and wide supply range make it well suited for portable instruments, medical monitoring equipment, and precision analog filter designs in industrial systems.
Specifications
| Pbfree Code | Yes |
| Date Of Intro | 1996-01-01 |
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.025 µA |
| Bias Current-Max (IIB) @25C | 0.025 µA |
| Common-mode Reject Ratio-Min | 91dB |
| Common-mode Reject Ratio-Nom | 106dB |
| Frequency Compensation | YES |
| Input Offset Current-Max (IIO) | 0.005 µA |
| Input Offset Voltage-Max | 250 µV |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Low-Bias | NO |
| Low-Offset | YES |
| Micropower | YES |
| Neg Supply Voltage Limit-Max | -18 V |
| Neg Supply Voltage-Nom (Vsup) | -15 V |
| Number of Functions | 2 |
| 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 | 0.2V/us |
| Supply Current-Max | 0.7mA |
| Supply Voltage Limit-Max | 18V |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 350 |
| Voltage Gain-Min | 19950 |
| Wideband | NO |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for OPA2234U:
Amplifiers 8-SOIC -40 to 85
Frequently Asked Questions
What is the input bias current and CMRR of the OPA2234U?
The OPA2234U has a maximum input bias current of 25pA at 25°C, making it suitable for high-impedance source applications. The common-mode rejection ratio is a minimum of 91dB and typically 106dB, ensuring excellent rejection of common-mode noise in precision measurement systems.
What supply voltage range does the OPA2234U support?
The OPA2234U operates from a supply voltage of 3V to 28V, supporting both single-supply and dual-supply configurations. This flexibility allows the device to be used in a wide range of applications from battery-powered portable equipment operating at 3V to industrial systems at ±12V or ±15V.
What package is the OPA2234U available in and is it RoHS compliant?
The OPA2234U is available in an 8-pin SOIC (Small Outline Integrated Circuit) package, which is a standard surface-mount form factor compatible with automated PCB assembly. The part carries a lead-free RoHS-compliant designation (Pbfree Code: Yes), making it suitable for environmentally regulated markets.
What are typical applications for the OPA2234U dual op amp?
Typical applications include precision instrumentation amplifiers, active filter stages, bridge sensor amplification, and pH electrode buffers where low bias current is critical. The dual channel design allows both amplifier stages to share a single 8-pin package, saving board space and simplifying layout in two-channel signal chains.
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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.
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