Dip Switch Link Options - Analog Devices MICROCONVERTER ADUC7024 Reference Manual

S1-1 VREF
Function: Connects the output of the 2.5V external reference (ADR291) to the VREF pin (pin #55) of
the ADuC7024.
Use: Slide S1-1 to the ON position to connect the external reference to the ADuC7024.
Slide S1-1 to the OFF position to use the internal 2.5V reference or a different external
reference on VREF pin of J3 header.
S1-2 V
OCM
Function: Connects 1.67V to the V
board to use the ADC in differential mode.
Use : Slide S1-2 to the ON position to connect V
output of the ADR291 reference.
Slide S1-2 to the OFF position to use a different voltage for V
voltage to the V
shown in Table 1:
S1-3 POT
Function: Connects the potentiometer output to ADC0. This input is buffered by an AD8606. This is for
demonstration purposes.
Use : Slide S1-3 to the ON position to connect the potentiometer to the op-amp of ADC0 input
channel.
Slide S1-3 to the OFF position to use ADC0 input on J3 header.
S1-4 ADC3
Function: Brings out ADC3 (pin #64) on J3 header.
Use: Slide S1-6 to the ON Position to connect directly ADC3 of J3 header to ADC3 pin (pin #64)
of the ADuC7024.
Slide S1-6 to the OFF Position to disconnect ADC3 of J3 header from ADC3 pin (pin #64)
of the ADuC7024.
Rev. 1.0
ADuC7024 Evaluation Board Reference Guide
(3) DIP S
WITCH
pin of the AD8132. No extra DC voltage is required on the
OCM
pin of J3 header. Note that V
OCM
V V
REF
2.5V 1.25V
2.048V 1.024V
1.25V 0.75V
Table 1: V
L O
INK PTIONS
of the differential amplifier to 1.67V, divided
OCM
value is dependant on reference value as
OCM
min V max
OCM OCM
2.05V
2.276V
2.55V
range
OCM
Page 6 of 15
(3) Link Options
by connecting a DC
OCM
Analog Devices Inc., MicroConverter
www.analog.com/microconverter
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