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The LS5911 is a low noise wideband monolithic dual N-channel JFET amplifier designed as an improved replacement for legacy discrete devices. It features high transconductance and low input noise voltage, making it suitable for precision analog applications. The device is housed in a TO-71 metal can package with six leads.
Verify the specific package type matches the required footprint, as the datasheet lists multiple options including SOT-23, SOIC, and PDIP variants alongside the TO-71. Confirm that the ordering suffix corresponds to the desired lead finish and packaging format before finalizing procurement.
Select this component when a matched dual JFET pair with low noise characteristics is required. Ensure the operating junction temperature remains within the specified range and that power dissipation limits are respected under thermal derating conditions.
Linear Integrated Systems manufactures the LS5911 as part of a family including LS5912 and LS5912C. These components serve as modern replacements for older discrete JFETs like the 2N5911 and 2N5912, offering integrated matching and consistent electrical characteristics.
This component serves as an improved replacement for SILICONIX, FAIRCHILD, and NATIONAL 2N5911 and 2N5912 devices.