OPA4234UE4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments OPA4234UE4 is a quad low-power precision single-supply operational amplifier with 250 µV maximum input offset voltage and 106 dB typical CMRR. It operates over -40°C to 85°C and is housed in a 14-pin SOIC package. Ideal for precision signal conditioning and sensor interface circuits.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- OPA4234UE4 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
What are the key features of OPA4234UE4?
- Quad op-amp with 250 µV maximum input offset voltage for precision designs
- 106 dB typical common-mode rejection ratio for excellent noise immunity
- Single-supply operation with low bias current of 0.03 µA at 25°C
- Industrial temperature range of -40°C to 85°C in compact 14-SOIC package
What is OPA4234UE4 used for?
The OPA4234UE4 is optimized for precision sensor amplification, active filter design, and instrumentation front-ends requiring low offset and high CMRR in single-supply systems. Its four independent amplifiers in one 14-SOIC package reduce board space and component count in multichannel data acquisition and medical monitoring equipment. The wide temperature range and low bias current make it well suited for industrial and portable battery-powered measurement devices.
What are the specifications of OPA4234UE4?
| 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 | 0.03 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 |
Where can I find the OPA4234UE4 datasheet?
OPA4234UE4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for OPA4234UE4?
Compatible alternatives and drop-in replacements for OPA4234UE4:
Rochester Electronics LLC QUAD OP-AMP, 250uV OFFSET-MAX, 0.35MHz BAND WIDTH, PDSO14, GREEN, PLASTIC, MS-012AB, SOIC-14
Frequently Asked Questions
How accurate is the OPA4234UE4 input offset voltage and why does it matter?
The OPA4234UE4 specifies a maximum input offset voltage of 250 µV, which directly limits the DC accuracy of any gain stage built around it. For a circuit with a gain of 100, this translates to a maximum DC output error of only 25 mV, making it suitable for precision bridge amplifiers, thermocouple interfaces, and low-level sensor signal conditioning where tight accuracy is required.
Can OPA4234UE4 replace a dual op-amp in a compact 4-channel sensor board?
Yes, the OPA4234UE4 integrates 4 independent op-amps in a single 14-SOIC package, replacing two dual op-amp ICs and saving PCB area. Each amplifier delivers 106 dB typical CMRR and 0.03 µA bias current at 25°C, so multichannel sensor boards for temperature or pressure monitoring benefit from reduced footprint without sacrificing per-channel performance.
What single-supply voltage range is supported and how does CMRR perform?
The OPA4234UE4 is designed for single-supply precision operation and achieves a common-mode rejection ratio of at minimum 91 dB and typically 106 dB, providing strong rejection of common-mode interference from power lines or digital switching noise. This level of CMRR is critical for 4-20 mA industrial loop receivers and differential sensor interfaces where noise rejection determines system accuracy.
For industrial designs operating across temperature extremes, how does the OPA4234UE4 hold up?
The OPA4234UE4 is rated for -40°C to 85°C operation, covering the full industrial temperature range. Over this range, bias current stays below 0.05 µA maximum and input offset remains tightly controlled at 250 µV maximum, ensuring reliable precision amplification in factory automation, outdoor sensor nodes, and HVAC control electronics without requiring temperature compensation circuitry.
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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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