OPA2344UA Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
OPA2344UA is a dual CMOS rail-to-rail op amp with 1MHz bandwidth, 76dB CMRR, and 10pA bias current. Operates on 3V to 5V supply. From $0.925, in stock, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- OPA2344UA Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.9250(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual-channel CMOS op amp with rail-to-rail input/output for maximum signal swing
- Ultra-low bias current of 1pA typical, 10pA max at 25°C — ideal for high-impedance sensor interfaces
- 1MHz gain-bandwidth product with 76dB minimum CMRR for precise signal conditioning
- Wide supply range: 3V to 5V single supply or ±1.5V to ±2.5V dual supply
- 8-Pin SOIC package (OPA2344UA) for compact PCB layouts
Applications
The OPA2344UA is well-suited for portable and battery-powered instrumentation where low power and rail-to-rail swing are critical. Its ultra-low bias current makes it ideal for photodiode amplifiers, pH meters, and other high-impedance electrochemical sensors. The dual-channel configuration and single-supply compatibility also make it a strong fit for active filter stages and signal conditioning in medical devices and industrial data acquisition systems.
Specifications
| Pbfree Code | Yes |
| YTEOL | 1 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.00001 µA |
| Bias Current-Max (IIB) @25C | 0.000001 µA |
| Common-mode Reject Ratio-Min | 76dB |
| Common-mode Reject Ratio-Nom | 92dB |
| Frequency Compensation | YES |
| Input Offset Current-Max (IIO) | 0.00001 µA |
| Input Offset Voltage-Max | 1000 µV |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Low-Bias | YES |
| Low-Offset | NO |
| Micropower | YES |
| Number of Functions | 2 |
| 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 | 0.8V/us |
| Supply Current-Max | 0.5mA |
| Supply Voltage Limit-Max | 7.5V |
| Supply Voltage-Nom (Vsup) | 5.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| 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 | 1000 |
| Voltage Gain-Min | 31600 |
| 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
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the supply voltage range of the OPA2344UA?
The OPA2344UA operates from a single supply of 3V to 5V, or from a dual supply of ±1.5V to ±2.5V, making it suitable for battery-powered and single-supply designs without level-shifting circuitry.
What is the input bias current of the OPA2344UA and why does it matter?
The OPA2344UA features a maximum input bias current of 10pA at 25°C (1pA typical), one of the lowest in its class. This extremely low bias current is critical for high-impedance applications such as photodiode amplifiers, pH electrode buffers, and charge amplifiers where even small leakage currents can cause significant measurement errors.
What are common applications for the OPA2344UA?
The OPA2344UA is commonly used in portable instrumentation, medical monitoring equipment, active filters, photodiode transimpedance amplifiers, electrochemical sensor interfaces, and data acquisition front ends. Its rail-to-rail output and 1MHz bandwidth suit a wide range of precision signal conditioning tasks.
What package does the OPA2344UA come in, and are there pin-compatible alternatives?
The OPA2344UA is offered in an 8-Pin SOIC (Small Outline IC) package. Pin-compatible alternatives include the OPA2340UA (same pinout, 5.5MHz bandwidth) and the OPA2335UA (chopper-stabilized, near-zero offset). Always verify supply voltage and bandwidth requirements before substituting.
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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 |
|---|---|---|
| 1+ | $1.8500 | $1.85 |
| 136+ | $0.9990 | $135.86 |
| 301+ | $0.9250 | $278.43 |
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