Electronic potentiometer using a standard CMOS logic and analog multiplexers. Pot have low distortion (0.005% less at 1 V rms) and is it easy for beginers to Understanding. In the beginning the art Hi-Fi when in the absence of high-quality potentiometers for volume control using resistive divider, the various stages of the change lever mnohapolohovým switch. Figure 1 is the electronic equivalent of such a volume control. Instead I used a mechanical switch CMOS analog multiplexers. EN signal is collected by either a multiplexer, and so we have 16 steps.

The figure shows the use of a CD4016 analog multiplex to multiplex the digital outputs back to the FUNCTION input. Since the CD4016 is a digitally controlled analog transmission gate, no level shifting of the digit output is required. The CD4051's or CD4052's could also be used to select the proper inputs for the multiplexed input on the ICM7226 from 2 or 3 bit digital inputs. These analog multiplexers may also be used in systems in which the mode of operation is controlled by a microprocessor rather than directly from front panel switches.

The ADC12038 families are 12-bit plus sign sampling ADC converters with serial I/O. These devices have configurable Analog multiplexers with 2, 4, or 8 input channels. On re- quest, these A/Ds perform a self calibration routine that minimizes linearity, zero, and full-scale errors. To minimize power consumption these devices have a power down mode

Maxim s DG508A and DG509A are monolithic CMOS Analog Multiplexers (muxes): the DG508A is a single 8-channel (1-of-8) mux, and the DG509A is a differential 4-channel (2-of-8) mux. Both devices guarant..

CD4051BMS, CD4052BMS and CD4053BMS analog multiplexers/ demultiplexers are digitally controlled analog switches having low ON impedance and very low OFF leakage current. Control of analog signals up to 20V peak-topeak can be achieved by digital signal amplitudes of 4. 5V to 20V (if VDD-VSS = 3V, a VDD-VEE of up to 13V can be controlled; for VDD-VEE

CMOS analog multiplexers were frequently used at the ETC for various purposes. Here I thought I would present a circuit I borrowed from a Dave Jones design, and slightly modified it, to build a black burst generator. Video systems need sync to ensure that all the devices are in time with each other, and sync is also a component of composite video.

Here is another example of using a CD4051 multiplexer, or more accurately a pair of CD4051s in parallel. I had lifted much of the core logic and circuits from Dave Jones designs. Again these are old designs offered from a historical perspective. I built this sequencer for a public access facility I was involved with for a while. At the time they o