LTC6268IS8-10#TRPBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
The LTC6268IS8-10#TRPBF is a 4 GHz ultralow bias current FET-input operational amplifier from Analog Devices in an 8-pin SOIC package. It delivers an exceptionally low bias current of just 2 fA at 25°C and 77 dB typical CMRR, ideal for trans-impedance amplifier and photodetector applications. Available on tape-and-reel in lead-free packaging for high-volume precision instrumentation designs.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LTC6268IS8-10#TRPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.6800(MOQ 19)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4 GHz gain-bandwidth product enabling wideband transimpedance and photodetector amplifier designs with minimal noise
- Ultralow FET input bias current of 2 fA at 25°C (max 9×10⁻⁷ µA average) preventing leakage errors in high-impedance sensor interfaces
- 77 dB typical CMRR in a compact 8-pin SOIC package supporting precision differential signal amplification in laboratory and industrial instruments
Applications
The LTC6268IS8-10#TRPBF is optimized for trans-impedance amplifier (TIA) circuits in photodetector and optical sensing applications where femtoampere-level input bias current is critical for accuracy. Its 4 GHz bandwidth also makes it suitable for high-speed current sensing, impedance spectroscopy, and wideband data acquisition front-ends in precision instrumentation and lidar systems.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1610 (S8) |
| YTEOL | 10 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 9e-7 µA |
| Bias Current-Max (IIB) @25C | 2e-11 µA |
| Common-mode Reject Ratio-Min | 50dB |
| Common-mode Reject Ratio-Nom | 77dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 4500 µV |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Low-Bias | YES |
| Low-Offset | NO |
| Micropower | NO |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Slew Rate-Min | 600V/us |
| Slew Rate-Nom | 1500V/us |
| Supply Current-Max | 50mA |
| Supply Voltage Limit-Max | 5.5V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 4000000 |
| Voltage Gain-Min | 40000 |
| Wideband | YES |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How low is the input bias current of the LTC6268IS8-10#TRPBF and why does it matter for photodetector circuits?
The LTC6268IS8-10#TRPBF has a maximum input bias current of 2×10⁻¹¹ µA (20 fA) at 25°C and an average max of 9×10⁻⁷ µA. In trans-impedance amplifier designs with feedback resistors of 1 MΩ or more, this femtoampere-level bias current introduces negligible DC offset voltage, making it essential for accurate photodetector and optical power measurement circuits.
What bandwidth does the LTC6268IS8-10#TRPBF offer and which high-speed sensing applications benefit most?
The LTC6268IS8-10#TRPBF provides a 4 GHz gain-bandwidth product, enabling wideband trans-impedance amplifier designs for lidar receivers, optical communication front-ends, and high-speed current measurement systems. This 4 GHz bandwidth, combined with the 2 fA input bias current and 50 dB minimum CMRR, allows it to amplify fast optical pulses with sub-nanosecond rise times without introducing offset from bias leakage.
When is the LTC6268IS8-10#TRPBF preferred over a standard JFET op-amp for impedance spectroscopy?
For impedance spectroscopy and electrochemical sensing applications using source impedances above 1 MΩ, the LTC6268IS8-10#TRPBF is preferred because its 2 fA input bias current causes less than 2 µV of offset across a 1 GΩ source impedance, far superior to typical JFET op-amps with 10 pA to 100 pA bias currents. Its 4 GHz bandwidth additionally supports fast impedance measurements at frequencies up to hundreds of megahertz.
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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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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 19+ | $6.2000 | $117.80 |
| 250+ | $5.0875 | $1271.88 |
| 1000+ | $4.6800 | $4680.00 |
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