Wiki

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Last revision Both sides next revision
university:tools:m1k:analog-mux [29 Dec 2020 19:23]
Doug Mercer new analog accessory board version
university:tools:m1k:analog-mux [30 Dec 2020 17:17]
Doug Mercer add sparkfun links
Line 44: Line 44:
  
 <WRAP centeralign>​ Figure 8, Simply attach 74HC4052 on proto-board and jumper wires</​WRAP>​ <WRAP centeralign>​ Figure 8, Simply attach 74HC4052 on proto-board and jumper wires</​WRAP>​
 +
 +There are other analog multiplexer configurations in the generic CD4XXX series of CMOS ICs. The CD4051 is a single 8:1 mux and the CD4067 is a single 16:1 mux. The old Motorola MC14529B analog selector can be a configured as a dual 4-channel or single 8-channel device depending on how the input controls are used. By using 3 or all 4 of the digital PIO bits and two of these single multiplexers either 16 or even 32 signal channels could be measured. This [[https://​www.sparkfun.com/​products/​9056|16:​1 mux breakout board]] available from SparkFun is based on the CD74HC4067 and works well with the ALM1000. Another [[https://​www.sparkfun.com/​products/​13906|8 Channel Multiplexer Breakout]] based the 74HC4051 is also available.
  
 The SparkFun analog mux boards do not come with header connectors so they would need to be added. The pins on the connector do not line up with the M1k connectors so male to male jumpers would be needed as shown in the figure 9. The SparkFun analog mux boards do not come with header connectors so they would need to be added. The pins on the connector do not line up with the M1k connectors so male to male jumpers would be needed as shown in the figure 9.
university/tools/m1k/analog-mux.txt · Last modified: 03 Jan 2021 22:21 by Robin Getz