OPA4234UAE4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The OPA4234UAE4 is a quad low-power precision single-supply operational amplifier from Texas Instruments, featuring 250 µV max offset voltage, 91 dB min CMRR, 0.05 µA bias current, and 14-pin SOIC package for accurate signal conditioning from -40°C to 85°C. In stock worldwide.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- OPA4234UAE4 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
- Quad-channel precision op-amp with max 250 µV input offset voltage
- 91 dB minimum CMRR for excellent common-mode noise rejection
- Ultra-low 0.05 µA input bias current for high-impedance sources
- Single-supply operation for cost-effective circuit designs
- 14-pin SOIC package for compact surface-mount assembly
- Operating temperature range: -40°C to +85°C
Applications
The OPA4234UAE4 is well-suited for precision signal conditioning in data acquisition systems, sensor amplifiers, and bridge measurement circuits. It is also commonly used in medical instrumentation, industrial transducer interfaces, and battery-powered equipment where low power and high accuracy are both critical.
Specifications
| Pbfree Code | No |
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.05 µA |
| Bias Current-Max (IIB) @25C | 0.05 µA |
| Common-mode Reject Ratio-Min | 91dB |
| Common-mode Reject Ratio-Nom | 106dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 250 µV |
| JESD-30 Code | R-PDSO-G14 |
| 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 | 4 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Power | YES |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 0.2V/us |
| Supply Current-Max | 1.4mA |
| Supply Voltage Limit-Max | 18V |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Unity Gain BW-Nom | 350 |
| Voltage Gain-Min | 19950 |
| Wideband | NO |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for OPA4234UAE4:
Frequently Asked Questions
What is the OPA4234UAE4 and what makes it suitable for precision signal conditioning?
The OPA4234UAE4 is a quad low-power precision single-supply operational amplifier from Texas Instruments. It features a maximum input offset voltage of 250 µV, a minimum common-mode rejection ratio of 91 dB (typically 106 dB), and an ultra-low bias current of 0.05 µA. These characteristics make it ideal for precision signal conditioning in sensor interfaces, data acquisition systems, and battery-powered instrumentation where accuracy and low power consumption are critical.
What are the key electrical specifications and operating conditions of the OPA4234UAE4?
The OPA4234UAE4 operates over a temperature range of -40°C to 85°C and is housed in a 14-pin SOIC package. It supports single-supply operation and features voltage-feedback architecture with frequency compensation. The device achieves a minimum CMRR of 91 dB, a typical CMRR of 106 dB, a maximum input offset voltage of 250 µV, and a maximum bias current of 0.05 µA at 25°C. These specifications ensure stable and accurate performance across a wide range of industrial and consumer applications.
In what applications is the OPA4234UAE4 commonly used?
The OPA4234UAE4 is widely used in precision instrumentation, medical equipment, sensor signal conditioning, battery-powered portable devices, and industrial control systems. Its quad configuration allows four independent amplifier channels in a single package, making it efficient for multi-channel designs. The low offset voltage and high CMRR suit it for bridge amplifiers, strain gauge interfaces, temperature measurement circuits, and any application requiring accurate amplification of small differential signals with minimal error.
How does the OPA4234UAE4 compare to single or dual op-amp alternatives, and what are the design advantages of using a quad package?
Using a quad op-amp like the OPA4234UAE4 instead of multiple single or dual op-amps reduces PCB footprint, component count, and assembly cost by consolidating four amplifier channels into one 14-pin SOIC package. All four channels share the same electrical characteristics, simplifying matching and reducing channel-to-channel variation. This also improves thermal consistency across channels since all amplifiers operate at the same die temperature. For designers building multi-channel signal chains such as 4-channel sensor arrays or differential measurement systems, the quad package streamlines layout and enhances system reliability.
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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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