OPA4705UAG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The OPA4705UAG4 is a quad low-cost CMOS rail-to-rail input/output operational amplifier operating from a 12V supply. It features a maximum input offset voltage of 5000 µV, 10 pA maximum bias current, and 66 dB minimum CMRR in a 14-pin SOIC package. In stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- OPA4705UAG4 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 OPA4705UAG4?
- Rail-to-rail input and output swing on a 12V supply maximizes dynamic range in single-supply signal conditioning circuits without requiring level shifting
- Extremely low input bias current maximum of 10 pA (CMOS input stage) prevents loading errors when interfacing high-impedance sensors, pH electrodes, or photodetectors
- Quad (4-channel) op-amp in a single 14-pin SOIC package reduces BOM count and PCB area in multi-channel analog front-end and active filter designs
- Voltage-feedback architecture with internal frequency compensation ensures stable closed-loop operation without requiring external compensation networks in standard gain configurations
What is OPA4705UAG4 used for?
The OPA4705UAG4 is used in multi-channel analog signal conditioning front-ends for data acquisition systems, where its rail-to-rail I/O and low bias current are critical for accurate sensor signal amplification. It is also employed in active filter banks, instrumentation amplifier stages, and audio processing circuits operating from a single 12V supply in industrial and consumer electronics. Its quad channel configuration makes it efficient for implementing four-channel buffer, integrator, or summing amplifier stages within a single package.
What are the specifications of OPA4705UAG4?
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.00001 µA |
| Bias Current-Max (IIB) @25C | 0.00001 µA |
| Common-mode Reject Ratio-Min | 66dB |
| Common-mode Reject Ratio-Nom | 93dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 5000 µV |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e4 |
| Low-Bias | YES |
| Low-Offset | NO |
| Micropower | YES |
| Neg Supply Voltage Limit-Max | -6.6 V |
| Neg Supply Voltage-Nom (Vsup) | -5 V |
| Number of Functions | 4 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.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 | 0.6V/us |
| Supply Current-Max | 1mA |
| Supply Voltage Limit-Max | 6.6V |
| 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 | 1000 |
| Voltage Gain-Min | 100000 |
| 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 OPA4705UAG4 datasheet?
OPA4705UAG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for OPA4705UAG4?
Compatible alternatives and drop-in replacements for OPA4705UAG4:
Frequently Asked Questions
What is the input bias current specification of the OPA4705UAG4?
The OPA4705UAG4 features a maximum input bias current of 10 pA (0.00001 µA) at 25°C, a result of its CMOS input stage, making it ideal for high-impedance sensor interfaces such as pH probes, photodiodes, and electrometer-grade measurement circuits.
What supply voltage does the OPA4705UAG4 operate from?
The OPA4705UAG4 operates from a 12V supply (typically ±6V dual or 12V single supply), providing a wide output swing with rail-to-rail capability that maximizes signal headroom in single-supply analog system designs.
What is the common-mode rejection ratio of the OPA4705UAG4?
The OPA4705UAG4 specifies a minimum CMRR of 66 dB and a nominal CMRR of 93 dB, ensuring strong rejection of common-mode noise and interference on input signal lines, which is critical in differential and instrumentation amplifier configurations.
How many op-amp channels does the OPA4705UAG4 contain?
The OPA4705UAG4 contains four independent operational amplifier channels in a single 14-pin SOIC package, allowing designers to implement four separate amplifier stages while reducing component count, PCB area, and assembly cost compared to using four discrete single op-amps.
What are typical applications for the OPA4705UAG4?
Typical applications include multi-channel sensor amplification, active low-pass and bandpass filter banks, transimpedance amplifiers for photodetector arrays, audio mixing and equalization circuits, and multi-channel data acquisition front-ends in industrial instrumentation and medical monitoring equipment.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
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.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit