OPA2349EA/250 Texas Instruments Integrated Circuit (SOT23 (8-Pin)) In Stock
OPA2349EA/250 is a dual-channel, rail-to-rail CMOS operational amplifier from Texas Instruments drawing only 1 µA supply current per channel with 10 fA maximum bias current. It provides 60 dB typical CMRR and voltage-feedback architecture in an 8-pin SOT-23 package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (8-Pin)
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- OPA2349EA/250 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.0388(MOQ 1)
- Temp Range
- -40.0°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of OPA2349EA/250?
- Ultra-low 1 µA quiescent current per channel enabling years of battery life in portable sensor designs
- Rail-to-rail input and output swing maximizing usable signal range from 0 V to supply voltage
- 10 fA maximum input bias current allowing use with high-impedance sensors and photodetectors without offset errors
- Dual-channel configuration in a compact 8-pin SOT-23 package minimizing board space in two-channel signal conditioning circuits
What is OPA2349EA/250 used for?
The OPA2349EA/250 is ideal for battery-powered medical sensors, portable data loggers, and IoT nodes where the 1 µA per-channel quiescent current extends battery life by months compared to standard op-amps. Its 10 fA bias current and rail-to-rail output make it suitable for high-impedance photodiode transimpedance amplifiers and electrochemical sensor interfaces where leakage current errors must be minimized. Designers also use it in wearable health monitors and portable gas detectors that require dual-channel amplification in a tiny SOT-23 footprint without sacrificing signal accuracy.
What are the specifications of OPA2349EA/250?
| 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 | 0.00001 µA |
| Common-mode Reject Ratio-Min | 48dB |
| Common-mode Reject Ratio-Nom | 60dB |
| Frequency Compensation | YES |
| Input Offset Current-Max (IIO) | 0.00001 µA |
| Input Offset Voltage-Max | 10000 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 | TSSOP8,.1 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 0.02V/us |
| Supply Current-Max | 0.004mA |
| Supply Voltage Limit-Max | 5.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | OTHER |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 70 |
| Voltage Gain-Min | 1000 |
| Wideband | NO |
| Package | SOT23 (8-Pin) |
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 OPA2349EA/250 datasheet?
OPA2349EA/250 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for OPA2349EA/250?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How low is the quiescent supply current of OPA2349EA/250 and what does that mean for battery-powered designs?
The OPA2349EA/250 draws only 1 µA per channel of quiescent supply current, meaning both channels together consume just 2 µA from the supply rail. In a coin-cell battery application with a 220 mAh capacity, this allows over 10,000 hours of continuous operation before the battery depletes, making it exceptional for ultra-low-power sensor interfaces.
What is the input bias current of OPA2349EA/250 and which high-impedance sensor types benefit from this specification?
The maximum input bias current is 0.00001 µA, or 10 fA, which is low enough for transimpedance amplifier circuits with photodiodes in the picoamp range, pH electrodes with gigaohm source impedances, and capacitive humidity sensors where nanoamp-level bias currents would create significant measurement offset errors.
What common-mode rejection ratio does OPA2349EA/250 provide, and how does that affect signal integrity in noisy environments?
The OPA2349EA/250 delivers a typical CMRR of 60 dB and a minimum of 48 dB, attenuating common-mode interference such as 50 Hz or 60 Hz power-line noise on sensor leads by at least 250 times in amplitude, which is sufficient for biomedical ECG front ends and industrial 4 to 20 mA loop receivers operating near switching power supplies.
For a two-channel thermocouple amplifier, how does the 8-pin SOT-23 package of OPA2349EA/250 compare to using two separate single op-amps?
The dual OPA2349EA/250 in an 8-pin SOT-23 package occupies roughly 2.9 mm x 1.6 mm, about half the board area of two discrete single op-amps in separate SOT-23-5 packages, while also sharing a single power supply decoupling capacitor and reducing placement and routing complexity in tight PCB layouts.
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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
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.9460 | $2.95 |
| 10+ | $2.2500 | $22.50 |
| 25+ | $1.5300 | $38.25 |
| 41+ | $1.1130 | $45.63 |
| 136+ | $1.0388 | $141.28 |
In Stock · 24h Response · Worldwide Shipping
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