OPA137UAG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments OPA137UAG4 is a general-purpose FET-input operational amplifier with 1 MHz gain-bandwidth product, ultra-low 0.0001 µA bias current, and 70 dB minimum CMRR in an 8-pin SOIC package. It is optimized for high-impedance sensor interfaces and precision signal conditioning. Available from stock worldwide with competitive pricing and fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- OPA137UAG4 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 OPA137UAG4?
- Ultra-low 0.0001 µA max input bias current ideal for high-impedance sensor and transducer signal conditioning
- 1 MHz gain-bandwidth product with internal frequency compensation for stable single-supply op-amp circuit design
- 70 dB minimum CMRR (84 dB typical) in compact 8-pin SOIC package for noise-sensitive analog applications
What is OPA137UAG4 used for?
The OPA137UAG4 is suited for high-impedance sensor amplification, such as interfacing piezoelectric sensors, photodiodes, and pH electrodes where the 0.0001 µA bias current minimizes measurement error. Its 1 MHz bandwidth and internal compensation make it appropriate for audio pre-amplifier stages, active filter designs, and instrumentation front-ends operating from dual supplies up to ±18 V. The 8-SOIC package is a standard footprint for industrial and medical analog signal-chain boards.
What are the specifications of OPA137UAG4?
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.0001 µA |
| Bias Current-Max (IIB) @25C | 0.0001 µA |
| Common-mode Reject Ratio-Min | 70dB |
| Common-mode Reject Ratio-Nom | 84dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 15000 µV |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Low-Bias | YES |
| Low-Offset | NO |
| Micropower | YES |
| Neg Supply Voltage Limit-Max | -18 V |
| Neg Supply Voltage-Nom (Vsup) | -15 V |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.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 | 3.5V/us |
| Supply Current-Max | 0.375mA |
| Supply Voltage Limit-Max | 18V |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | YES |
| Technology | JFET |
| 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 | 20000 |
| Wideband | NO |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Where can I find the OPA137UAG4 datasheet?
OPA137UAG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for OPA137UAG4?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What gain-bandwidth product and input bias current does the OPA137UAG4 provide?
The OPA137UAG4 delivers a 1 MHz gain-bandwidth product with an ultra-low maximum input bias current of 0.0001 µA (100 pA), making it excellent for high-impedance sensor interfaces where bias current-induced offset voltage must be minimized.
For which sensor types is OPA137UAG4 a strong fit given its FET input stage?
With a 0.0001 µA max bias current, OPA137UAG4 suits piezoelectric sensors, pH electrodes, photodiodes, and electrometer-style circuits where source impedances exceed 1 MΩ and even picoamp-level bias would introduce unacceptable 15000 µV offset errors.
How does the 70 dB CMRR of OPA137UAG4 compare with standard op-amps?
A 70 dB minimum CMRR (84 dB typical) means the OPA137UAG4 rejects common-mode interference by at least a factor of 3162:1, which is adequate for single-ended industrial sensor inputs but designers needing tighter rejection may choose higher-CMRR instrumentation amplifiers.
What supply voltage range and package does OPA137UAG4 support?
The OPA137UAG4 is housed in an 8-pin SOIC (R-PDSO-G8) package and supports dual supply operation, typically up to ±18 V total, enabling a wide dynamic range for precision analog signal conditioning in both single and dual supply designs.
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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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