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LTC6268IS8-10#PBF

ADILTC6268IS8-10#PBF

Analog Devices Inc.
J-FET Amplifier 1 Circuit Rail-to-Rail 8-SO
NRND320 in stock
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Overview

The LTC6268IS8-10#PBF is a single-channel, decompensated JFET input operational amplifier designed for high-speed transimpedance applications. It features an extremely low input bias current of 0.003 pA and a 4 GHz gain bandwidth product, making it ideal for wideband photodiode amplification. This specific variant is stable for noise gains of 10 or higher.

Why Choose This Part

This amplifier offers a massive 1500V/us slew rate and ultra-low 3fA input bias current to minimize errors in high-impedance circuits. Its 200 uV input offset voltage ensures high DC precision alongside its 4 GHz AC performance. The rail-to-rail output maximizes dynamic range in single-supply systems starting from 3.1 V.

Applications

High-Speed Transimpedance Amplifiers
Ideal for converting low-level current from fast photodiodes or photomultiplier tubes into a voltage signal.
Optical Communications
Used in fiber optic receivers and laser diode monitoring where high bandwidth and low noise are critical.
Precision Instrumentation
High-impedance sensor interfacing where picoampere-level leakage would normally degrade accuracy.
Medical Imaging
Signal conditioning for high-speed scanners and diagnostic equipment requiring low offset and high slew rates.

Key Specifications

Slew Rate 1500V/us
Output Type Rail-to-Rail
Mounting Type Surface Mount
Amplifier Type J-FET
Package / Case 8-SOIC (0.154", 3.90mm Width)
Current - Supply 16.5mA
Number of Circuits 1
Current - Input Bias 0.003 pA
Operating Temperature -40degC ~ 85degC
Gain Bandwidth Product 4 GHz
Voltage - Input Offset 200 uV
Supplier Device Package 8-SO
Current - Output / Channel 90 mA
Voltage - Supply Span (Max) 5.25 V
Voltage - Supply Span (Min) 3.1 V

Getting Started

When designing with this part, use a low-capacitance PCB layout and maintain a guard ring around the high-impedance input pins to prevent leakage currents. Ensure that the circuit noise gain is at least 10V/V to maintain stability, as this is a decompensated amplifier. Evaluation boards like the DC2071A can be used to characterize the performance of the LTC6268 family in various configurations.

Part of Linear Tech / ADI LT Series family » LTC6268IS8

LTC6268IS8 Family

Part NumberDifferenceStock
LTC6268IS8#PBF (Analog Devices) #PBF 814

Also Consider

LTC6268IS8#PBF ADIAnalog Devices Inc. - The unity-gain stable version of the same amplifier for applications requiring lower gain or simpler compensation.
OPA657U TITexas Instruments - A high-speed JFET op-amp with 1.6 GHz bandwidth and low noise for transimpedance designs.