Matched dual-junction surface-mount JFET affords sensitivity and stability

Featuring dual die matched pairs in a single plastic surface-mount package, InterFET's IF1322 matched dual-junction field-effect transistor (JFET) is now available from Mouser stock. The dual die approach helps to reduce crosstalk from the parasitic transistor created in the substrate between the gates of the monolithic devices. This process matches the adjacent die to stringent electrical characteristics to eliminate the parasitic transistor as a source of noise and only uses adjacent die to best improve the match. The IF1322 is based on InterFET's very low noise NJ132L geometry. By matching two adjacent NJ132 die to create the new device, it has allowed design engineers to utilize the high sensitivity and stability to create a high performing differential sensor input or a constant current supply.