LTC6268HS6-10#TRMPBF Analog Devices Integrated Circuit (SOT23 (6-Pin)) In Stock
Analog Devices LTC6268HS6-10#TRMPBF is a 4 GHz ultralow bias current FET-input operational amplifier with 2×10⁻¹¹ µA bias current and 77 dB typical CMRR in a SOT-23-6 package. It is optimized for transimpedance amplifiers, photodiode receivers, and high-speed precision analog circuits.
- Manufacturer
- Analog Devices
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- LTC6268HS6-10#TRMPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.4400(MOQ 250)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4 GHz gain-bandwidth product enabling wideband transimpedance and voltage amplification
- Ultralow FET input bias current of 2e-11 µA for photodiode and charge-sensing applications
- 77 dB typical CMRR with 50 dB minimum for noise immunity in sensitive measurement circuits
- Voltage-feedback architecture with internal frequency compensation for stable closed-loop operation
- SOT-23-6 package occupying minimal PCB area in space-constrained optical receiver designs
Applications
The LTC6268HS6-10#TRMPBF is the preferred choice for transimpedance amplifier (TIA) designs in optical power meters, LIDAR receivers, and fluorescence detection instruments, where its 4 GHz bandwidth and sub-femtoampere bias current minimize noise and bandwidth limitations from photodiode source impedance. Its ultralow FET input bias current also suits charge amplifiers for particle detectors and capacitive sensor readout circuits. The SOT-23-6 packaging allows integration in handheld and portable analytical instruments demanding compact high-performance front-ends.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1636 |
| YTEOL | 10 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.000004 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-G6 |
| 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, VERY THIN PROFILE, SHRINK PITCH |
| 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 | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Unity Gain BW-Nom | 4000000 |
| Voltage Gain-Min | 40000 |
| Wideband | YES |
| Package | SOT23 (6-Pin) |
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
Why is the LTC6268HS6-10#TRMPBF's femtoampere-level input bias current critical in photodiode transimpedance amplifier designs?
The device has a maximum average bias current of 4×10⁻⁶ µA (approximately 4 fA), which is orders of magnitude smaller than typical JFET op-amps. In a transimpedance amplifier with a 1 MΩ feedback resistor, even 1 pA of bias current would generate a 1 µV offset; at 4 fA, this contribution is negligible, preserving dynamic range in optical measurement systems.
For a LIDAR pulse receiver needing 500 MHz bandwidth, does the LTC6268HS6-10#TRMPBF provide sufficient gain-bandwidth to close the loop at reasonable gain?
With a 4 GHz gain-bandwidth product, the LTC6268HS6-10#TRMPBF can achieve closed-loop bandwidths of 500 MHz at a noise gain of approximately 8×, leaving substantial margin. This makes it suitable for LIDAR time-of-flight receivers where fast pulse edges of less than 1 ns must be faithfully amplified from a photodiode source.
How does the SOT-23-6 package of LTC6268HS6-10#TRMPBF compare to larger op-amp packages for dense optical module PCBs?
The 6-pin SOT-23-6 package occupies approximately 1.6 mm × 2.9 mm, far smaller than SOIC-8 or DFN-8 alternatives, enabling placement directly adjacent to a photodiode in a compact optical subassembly. This short PCB trace distance from photodiode to TIA input minimizes parasitic capacitance, which would otherwise reduce bandwidth and increase noise in the 4 GHz gain-bandwidth design.
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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 |
|---|---|---|
| 250+ | $5.9125 | $1478.12 |
| 1000+ | $5.4400 | $5440.00 |
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