Datasheet

 2012 Microchip Technology Inc. Preliminary DS41652A-page 71
PIC16F527
12.0 OPERATIONAL AMPLIFIER
(OPA) MODULE
The OPA module has the following features:
• Two independent Operational Amplifiers
• External connections to all ports
• 3 MHz Gain Bandwidth Product (GBWP)
12.1 OPACON Register
The OPA module is enabled by setting the OPAxON bit
of the OPACON Register. When enabled, OPAxON
forces the output driver of OP1 for OPA1, and OP2 for
OPA2, into tri-state to prevent contention between the
driver and the OPA output.
FIGURE 12-1: OPA MODULE BLOCK DIAGRAM
Note: When OPA1 or OPA2 is enabled, the OP1
pin or OP2 pin, respectively, is driven by
the op amp output, not by the PORTC
driver. Refer to Table 15-4 for the electri-
cal specifications for the op amp output
drive capability.
OPA1
OPACON<OPA1ON>
To ADC and Comparator MUXs
OP1+
OP1-
OP1
OPA2
OPACON<OPA2ON>
OP2+
OP2-
OP2