OPA191ID Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
OPA191ID is a precision operational amplifier from Texas Instruments featuring ultra-low offset voltage of 25 µV max, 120 dB CMRR, and rail-to-rail output. Ideal for industrial sensing and precision measurement. From $1.837 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- OPA191ID Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.8370(MOQ 75)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-low input offset voltage of 25 µV max for precision signal conditioning
- Outstanding 120 dB minimum CMRR (140 dB typical) for excellent common-mode noise rejection
- Voltage-feedback architecture with frequency compensation for stable closed-loop operation
- Extremely low bias current of 0.02 nA at 25°C, minimizing loading on high-impedance sources
- Available in Small Outline Package (SOIC-8) for easy PCB integration
Applications
The OPA191ID is widely used in precision industrial measurement systems, sensor signal conditioning, and data acquisition front-ends where ultra-low offset and high CMRR are critical. Its extremely low bias current makes it ideal for interfacing with high-impedance sensors such as photodiodes and piezoelectric transducers. It is also well-suited for precision instrumentation amplifiers, medical equipment, and high-accuracy analog filter designs.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.009 µA |
| Bias Current-Max (IIB) @25C | 0.00002 µA |
| Common-mode Reject Ratio-Min | 120dB |
| Common-mode Reject Ratio-Nom | 140dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 25 µV |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Low-Bias | YES |
| Low-Offset | YES |
| Micropower | YES |
| Neg Supply Voltage Limit-Max | -20 V |
| Neg Supply Voltage-Nom (Vsup) | -3 V |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Slew Rate-Nom | 5.5V/us |
| Supply Current-Max | 0.2mA |
| Supply Voltage Limit-Max | 20V |
| Supply Voltage-Nom (Vsup) | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 2500 |
| Voltage Gain-Min | 316227 |
| 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 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for OPA191ID:
Frequently Asked Questions
What is the input offset voltage of the OPA191ID?
The OPA191ID has a maximum input offset voltage of 25 µV, making it one of the most precise op-amps for DC-accurate signal conditioning in industrial and instrumentation applications.
What is the bias current specification of the OPA191ID?
The OPA191ID features an extremely low bias current of 0.02 nA (0.00002 µA) at 25°C, with a maximum of 0.009 µA. This makes it ideal for high-impedance source applications such as photodiode amplifiers and pH sensors.
What are typical applications for the OPA191ID?
The OPA191ID is used in precision instrumentation, sensor signal conditioning, data acquisition systems, medical diagnostic equipment, industrial process control, and any application requiring high common-mode rejection (120–140 dB) and ultra-low offset voltage.
What package does the OPA191ID come in?
The OPA191ID is available in the standard SOIC-8 (Small Outline Integrated Circuit, 8-pin) package, which is compatible with standard PCB footprints and suitable for automated assembly processes.
Is the OPA191ID RoHS compliant?
Yes, the OPA191ID is lead-free (Pb-free) and RoHS compliant, making it suitable for use in environmentally regulated products across consumer, industrial, and medical markets.
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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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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 75+ | $1.8370 | $137.78 |
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