Ternary Hardware – CMOS switches

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DG403: one chip with resistors

Here I use undocumented feature of DG403 when normally closed switch opened by voltage lower than required to close another (normally opened) switch. Variable resistor is used to move that “both-opened” window to ternary “0″ zone (up from -3.0V…-0.8V to cover 0V).


DG403: two chips - no more components

Second scheme is more “correct” (nothing from undocumented features were used).

P.S. Ternary selector may be used as ternary inverter when RP=-5V, RO=0V, RN=+5V. See more details on www.ternary.info

One Response to “Ternary Hardware – CMOS switches”

  1. SHAOS» Blog Archive » Ternary multiplexer (selector) said:

    Aug 08, 10 at 9:36 PM

    [...] 0 (from 0 votes)VN:F [1.9.3_1094]please wait…Rating: 0.0/5 (0 votes cast)A scheme described earlier has been proven to be working: DG403: two chips – no more [...]

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