OPA2725AIDRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments OPA2725AIDRG4 is a dual general-purpose rail-to-rail output operational amplifier operating from ±6 V or 12 V single supply with 94 dB typical CMRR and 5 mV max offset voltage in an 8-pin SOIC package. Voltage-feedback architecture supports precision signal conditioning and filtering. Available from stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- OPA2725AIDRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Rail-to-rail output swing on ±6 V or 12 V single supply maximizes dynamic range in low-voltage signal chains
- 94 dB typical common-mode rejection ratio (CMRR) with 84 dB minimum for high-accuracy differential measurements
- Dual op-amp in 8-pin SOIC with 0.0002 µA maximum bias current minimizing error in high-impedance sensor interfaces
Applications
OPA2725AIDRG4 is suited for precision analog signal conditioning in data acquisition front-ends, active filter stages, and instrumentation amplifier building blocks where low input bias current and high CMRR are required. Its dual-channel configuration allows stereo audio buffering, differential-to-single-ended conversion, and balanced line receivers in industrial measurement equipment. The 8-pin SOIC package is compatible with standard footprints for easy integration into mixed-signal PCBs.
Specifications
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.0002 µA |
| Bias Current-Max (IIB) @25C | 0.0002 µA |
| Common-mode Reject Ratio-Min | 84dB |
| Common-mode Reject Ratio-Nom | 94dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 5000 µV |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Low-Bias | YES |
| Low-Offset | NO |
| Micropower | NO |
| Neg Supply Voltage Limit-Max | -6.6 V |
| Neg Supply Voltage-Nom (Vsup) | -6 V |
| Number of Functions | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 30V/us |
| Supply Current-Max | 12mA |
| Supply Voltage Limit-Max | 6.6V |
| Supply Voltage-Nom (Vsup) | 6V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| 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 | 20000 |
| Voltage Gain-Min | 63100 |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What CMRR does OPA2725AIDRG4 deliver and why does it matter for differential sensor measurements?
OPA2725AIDRG4 achieves 94 dB typical CMRR and a guaranteed minimum of 84 dB. A high CMRR means that common-mode noise—such as 50 Hz or 60 Hz mains interference appearing equally on both inputs—is attenuated by that ratio, keeping measurement error low. For precision bridge sensors and thermocouples operating at millivolt signal levels, even a few microvolts of common-mode error can distort the reading, making this op-amp's 94 dB CMRR valuable in those applications.
How does the 0.0002 µA maximum bias current of OPA2725AIDRG4 benefit high-impedance sensor interfaces?
With a maximum input bias current of 0.0002 µA (200 pA), OPA2725AIDRG4 creates less than 20 µV of error even when interfacing with source impedances as high as 100 kΩ. This is critical in pH electrode amplifiers, photodiode transimpedance stages, and high-impedance chemical sensors where larger bias currents would introduce unacceptable DC offset. The low bias current also extends battery life in portable measurement systems running on small current budgets.
Can OPA2725AIDRG4 replace OPA2340 in a 3.3 V single-supply active filter design?
OPA2725AIDRG4 operates from ±6 V or a 12 V single supply, whereas OPA2340 is optimized for 2.5 V to 5.5 V single supply. For a 3.3 V supply rail, OPA2340 is the more appropriate choice since OPA2725AIDRG4's minimum supply is higher. However, if the target design uses a 5 V or higher rail, OPA2725AIDRG4's 94 dB CMRR and 5 mV max offset voltage may make it superior for precision filter applications compared to OPA2340's typical 0.5 mV offset at lower supply voltages.
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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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