14-Bit, 85ksps ADC with 10µA Shutdown
+5V
INPUT
SIGNAL
+15V
1N914
DIODE
CLAMPS
-15V
VDDA
MAX194
10Ω
AIN
VSSA
-5V
Figure 12. Analog Input Protection for Overvoltage or Improper Supply Sequence
A0 A1
IN1
IN2 4-TO-1
MUX
IN3
IN4
OUT
MAX194
AIN
EOC
CLK
CONVERSION
AQUISITION
EOC
A0
A1
CHANGE MUX INPUT HERE
Figure 13. Change multiplexer input near beginning of conversion to allow time for slewing and settling.
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