OPA4343UAG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments OPA4343UAG4 is a quad-channel FET-input CMOS operational amplifier with 5.5 MHz gain-bandwidth product, rail-to-rail output, 3 V single-supply operation, and ultra-low 0.00001 µA bias current in a 14-pin SOIC package. It is optimized for battery-powered instrumentation and multi-channel signal-conditioning circuits. Available from stock worldwide with competitive pricing and fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- OPA4343UAG4 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 OPA4343UAG4?
- Quad op-amp (4 channels) at 5.5 MHz gain-bandwidth product with rail-to-rail output for maximizing signal swing on a 3 V single supply
- Ultra-low 0.00001 µA max input bias current at 25°C enables accurate amplification of signals from very high-impedance sensors and electrodes
- CMOS FET input with 60 dB minimum CMRR (92 dB typical) in 14-pin SOIC package for low-power multi-channel analog front-end designs
What is OPA4343UAG4 used for?
The OPA4343UAG4 is ideal for battery-powered multi-channel instrumentation such as portable medical monitors, handheld data loggers, and 4-channel sensor-conditioning boards operating from a 3 V single supply. Its ultra-low bias current of 0.00001 µA and rail-to-rail output make it well-suited for pH electrode amplifiers, capacitive sensor interfaces, and low-power filter stages. The 14-pin SOIC footprint enables compact quad-amplifier layouts with minimal external components.
What are the specifications of OPA4343UAG4?
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.00006 µA |
| Bias Current-Max (IIB) @25C | 0.00001 µA |
| Common-mode Reject Ratio-Min | 60dB |
| Common-mode Reject Ratio-Nom | 92dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 8000 µV |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e4 |
| Low-Bias | YES |
| Low-Offset | NO |
| Micropower | NO |
| Number of Functions | 4 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | RAIL |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 6V/us |
| Supply Current-Max | 5.6mA |
| Supply Voltage Limit-Max | 7.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| 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 | 5500 |
| Voltage Gain-Min | 40000 |
| Wideband | NO |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Where can I find the OPA4343UAG4 datasheet?
OPA4343UAG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for OPA4343UAG4?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many op-amp channels does OPA4343UAG4 provide and at what gain-bandwidth product?
The OPA4343UAG4 integrates 4 independent op-amp channels (quad configuration) each with a 5.5 MHz gain-bandwidth product, enabling high-density multi-channel signal conditioning at frequencies up to several MHz without requiring multiple single or dual op-amp packages.
What makes the OPA4343UAG4 suitable for battery-powered portable instruments?
The OPA4343UAG4 operates from a single 3 V supply with rail-to-rail output, which maximizes usable signal swing to nearly the full 3 V range. Combined with a 0.00001 µA max bias current and low quiescent current, it minimizes battery drain in portable medical devices, wearables, and handheld sensor instruments.
How does the 92 dB typical CMRR of OPA4343UAG4 benefit differential signal conditioning?
A 92 dB typical CMRR means the OPA4343UAG4 rejects common-mode interference by a factor of approximately 63,000:1, which suppresses 60 Hz and 50 Hz power-line noise effectively in single-ended and differential sensor interfaces operating from a 3 V supply.
When would a designer prefer OPA4343UAG4 over OPA137UAG4 in a multi-channel design?
OPA4343UAG4 packages 4 channels versus OPA137UAG4's single channel in comparable SOIC packages, reducing board space and passive component count in 4-channel designs. OPA4343UAG4 also adds rail-to-rail output and 3 V single-supply operation, while OPA137UAG4 targets dual-supply and wider bandwidth applications with 1 MHz gain-bandwidth.
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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.
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