Datasheet


    
   
SCLS573 − MARCH 2004
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
V
CC
= 5 V
I
IO
V
IN
2
< V
SS
or V
CC
< V
IN
2
Any Disabled Channel
V
SS
< V
IN
1
< V
CC
Enabled Channel
R
S
V
out
= V
I
1
V ± V∆
out
Figure 1. Injection-Current Coupling Specification
5 V
HC4052A
V
CC
Microcontroller
Channel 1Y0
Channel 1Y1
Channel 1Y2
Channel 1Y3
Channel 2Y0
Channel 2Y1
Channel 2Y2
Channel 2Y3
2-COM
5 V
5 V
A/D − Input 2
V
CC
(8y Identical
Circuitry)
Sensor
1-COM
A/D − Input 1
Figure 2. Actual Technology Requires 32 Passive Components and One Extra 6-V Regulator
to Suppress Injection Current Into a Standard HC4052 Multiplexer