CPH6904
what about this dual version (CPH6904) ?
https://www.onsemi.com/pdf/datasheet/ena1966-d.pdf
to compare: LSK389
https://www.linearsystems.com/lsdata/datasheets/201122 - LSK389 Datasheet Rev A14 2018 06 14.pdf
and 2SK389
2SK389 pdf, 2SK389 description, 2SK389 datasheets, 2SK389 view ::: ALLDATASHEET :::
what about this dual version (CPH6904) ?
https://www.onsemi.com/pdf/datasheet/ena1966-d.pdf
to compare: LSK389
https://www.linearsystems.com/lsdata/datasheets/201122 - LSK389 Datasheet Rev A14 2018 06 14.pdf
and 2SK389
2SK389 pdf, 2SK389 description, 2SK389 datasheets, 2SK389 view ::: ALLDATASHEET :::
Capacities may be important
If you use the dual FET as differential input stage fed by a varying source impedance, for instance from a volume pot, then the capacity between gate and drain may be important. It can easily worsen the THD figures, if you target very low values. In this case, something like LSK489 is preferable, and 2N5566 seems to be even better (with slightly lower transconductance).
If you use the dual FET as differential input stage fed by a varying source impedance, for instance from a volume pot, then the capacity between gate and drain may be important. It can easily worsen the THD figures, if you target very low values. In this case, something like LSK489 is preferable, and 2N5566 seems to be even better (with slightly lower transconductance).
Last edited: