OP293FS-REEL Analog Devices Integrated Circuit (Other) In Stock
Analog Devices OP293FS-REEL is a precision voltage-feedback operational amplifier with 35 kHz gain-bandwidth product, 0.015 V/µs slew rate, 100 dB minimum CMRR, and 0.02 µA maximum bias current in an 8-pin SOIC package on tape and reel. Available from stock with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Other
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- OP293FS-REEL 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
What are the key features of OP293FS-REEL?
- Ultra-low 0.02 µA maximum input bias current enables accurate amplification from high-impedance sensors such as pH electrodes, photodiodes, and piezoelectric transducers without significant loading error
- 100 dB minimum CMRR (116 dB typical) ensures excellent rejection of common-mode interference in single-supply instrumentation and battery-powered sensor signal chains
- 35 kHz gain-bandwidth product with internal frequency compensation provides stable closed-loop operation at moderate gains for precision DC and low-frequency measurement amplifier designs
What is OP293FS-REEL used for?
The OP293FS-REEL is designed for precision, low-frequency measurement applications including battery-powered portable instruments, medical sensor interfaces, and industrial data acquisition front-ends where ultra-low bias current and high CMRR are critical. Its 0.015 V/µs slew rate and 35 kHz bandwidth are matched to DC and audio-frequency signal conditioning in weigh-scale amplifiers, thermocouple signal conditioners, and strain gauge bridge amplifiers.
What are the specifications of OP293FS-REEL?
| Source Url Status Check Date | 2013-05-01 14:56:54.234 |
| Pbfree Code | No |
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.02 µA |
| Bias Current-Max (IIB) @25C | 0.02 µA |
| Common-mode Reject Ratio-Min | 100dB |
| Common-mode Reject Ratio-Nom | 116dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 350 µV |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e0 |
| Low-Bias | YES |
| Low-Offset | YES |
| Micropower | YES |
| Neg Supply Voltage Limit-Max | -18 V |
| Neg Supply Voltage-Nom (Vsup) | -15 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) | 240 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 15000V/us |
| Supply Current-Max | 0.145mA |
| Supply Voltage Limit-Max | 18V |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Tin/Lead (Sn85Pb15) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 35 |
| Voltage Gain-Min | 50000 |
| Wideband | NO |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Where can I find the OP293FS-REEL datasheet?
OP293FS-REEL Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for OP293FS-REEL?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Why is the OP293FS-REEL's 0.02 µA bias current specification critical for high-impedance sensor interfaces?
When amplifying signals from a high-impedance source such as a pH electrode (source impedance 10 MΩ to 1 GΩ) or photodiode, the input bias current of the op-amp flows through the source impedance and creates a voltage error. With the OP293FS-REEL's maximum bias current of only 0.02 µA flowing through a 10 MΩ source impedance, the resulting offset error is just 0.2 mV, which is negligible for most 12-bit or lower resolution measurements and far superior to general-purpose op-amps with bias currents in the microamp range.
For a 50 Hz mains-frequency interference rejection application, how effective is the OP293FS-REEL's CMRR?
The OP293FS-REEL provides a minimum CMRR of 100 dB and typical CMRR of 116 dB at DC and low frequencies. At 100 dB CMRR, a 1 V peak common-mode signal at 50 Hz appears as only 10 µV at the differential output. This level of rejection makes the OP293FS-REEL highly effective as a differential amplifier in proximity to mains wiring, such as in industrial sensor conditioning boards where 50 Hz or 60 Hz interference is the primary noise source.
How does the OP293FS-REEL 35 kHz GBW compare to a standard LM741 for a precision strain gauge bridge amplifier at gain of 100?
At a closed-loop gain of 100, the OP293FS-REEL provides approximately 350 Hz of usable signal bandwidth (35 kHz GBW divided by gain of 100). For a strain gauge bridge amplifier where the signal bandwidth is typically DC to 100 Hz, this 350 Hz bandwidth is more than sufficient. In contrast, the LM741 offers only 1 MHz GBW with a much higher input offset voltage of 2 mV to 6 mV versus the OP293FS-REEL's tighter offset, making the OP293 the superior choice for precision bridge measurements requiring less than 100 µV referred-to-input offset error.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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