2шт
или поменяю
"Копаю" хорошо,лопата импортная)
http://www.ece.ualberta.ca/~ee401/parts ... CL7662.pdfThe ICL7662
performs supply voltage conversion from positive to negative for an input range of +4.5V to +20.0V, resulting in complementary output voltages of -4.5V to -20V.
https://www.renesas.com/eu/en/www/doc/d ... cl7660.pdfThe ICL7660 performs supply voltage conversions from positive to negative for an input range of +1.5V to +10.0V resulting in
complementary output voltages of -1.5V to -10.0V