Analog: JFET Adds To Versatility With Package Option
The LSK170 junction FETs fit sensitive amplification applications. Also, they can be used as pin-for-pin replacements for Toshiba's 2SK170 and as improved functional replacements for InterFET's IF1320, IF1330, IF1331, and IF4500. They offer typical da
The LSK170 junction FETs fit sensitive amplification applications. Also, they can be used as pin-for-pin replacements for Toshiba's 2SK170 and as improved functional replacements for InterFET's IF1320, IF1330, IF1331, and IF4500. They offer typical datasheet values of 22-ms forward transfer admittance and 1-nV/Hz at 1 kHz and 2-nV/Hz at 10-Hz voltage noise, with only 22 pF of input capacitance. The LSK170 comes binned in 2.6- to 60-mA, 6.0- to 12-mA, and 10- to 20-mA IDSS ranges. Those narrow IDSS ranges simplify design tolerancing, particularly in low-voltage applications. The JFETs are available in through-hole TO-92 packages and, unlike the 2SK170, in a surface-mount SOT-23. Thousand-unit pricing is $0.50 each.
