MA330028 Microchip Technology, MA330028 Datasheet - Page 355

• Manufacturer Part Number: MA330028
• Description: Daughter Cards & OEM Boards dsPIC33EP64MC504 PIM
• Manufacturer: Microchip Technology

Specifications of MA330028

• Rohs: yes
• Product: Daughter Cards
• Core: dsPIC
• Description/function: Plug-in-module with dsPIC33EP64MC504 device for use with DM330021 and DM330023 motor control development board
• Interface Type: CAN, I2C, SPI
• Operating Supply Voltage: 3 to 3.6 V
• Tool Is For Evaluation Of: dsPIC33EP64MC504
• For Use With: DM330021, DM330023

25.1.2
Figure 25-6
with the output of the Op amp (OAxOUT) externally
routed to a separate analog input pin (ANx) on the
device. This Op amp configuration is slightly different in
terms of the Op amp output and the ADC input
connection, therefore R
transfer function. However, this configuration requires
the designer to externally route the Op amp output
(OAxOUT) to another analog input pin (ANx). See
Table 30-52
tics”
Table 30-60
tics”
requirements for the ADC module in this configuration.
calculate the expected voltage at point V
is the typical inverting amplifier equation.
FIGURE 25-6:
© 2011-2012 Microchip Technology Inc.
Figure 25-6
Note 1: See
for the typical value of R
describe the minimum sample time (T
2: See
3: See
4: CV
OP AMP CONFIGURATION B
shows a typical inverting amplifier circuit
in
in
also defines the equation to be used to
Voltage
Section 30.0 “Electrical Characteris-
Section 30.0 “Electrical Characteris-
Bias
REF
V
IN
Table 30-52
Table 30-52
Table 30-59
(4)
1
OP AMP CONFIGURATION B
O
or CV
INT
1 is not included in the
R
1
REF
for the Typical value.
for the Minimum value for the feedback resistor.
and
INT
2
1.
V
O
Table 30-60
OAxOUT
are two options that are available for supplying bias voltage to the op amps.
Table 30-59
CxIN1-
CxIN1+
OA
X
OUT
=
⎛
⎝
SAMP
. This
R
----------------------------- -
for the minimum sample time (T
FEEDBACK
and
Preliminary
R
)
1
⎞ Bias Voltage V
⎠
Op ampx
–
+
(
ADC
R
–
(3)
FEEDBACK (2)
IN
SAMP
)
R
INT
).
1
(1)
DS70657E-page 355
(V
OAxOUT
ANx
OA
X
OUT
)