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PIC16F785 Scheda tecnica(PDF) 75 Page - Microchip Technology |
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PIC16F785 Scheda tecnica(HTML) 75 Page - Microchip Technology |
75 / 178 page 2004 Microchip Technology Inc. Preliminary DS41249A-page 73 PIC16F785 11.0 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) 11.1 Control Registers The OPA1CON register, shown in Register 11-1, controls OPA1. OPA2CON, shown in Register 11-2, controls OPA2. 11.2 OPAxCON Register The OPA module is enabled by setting the OPAON bit (OPAxCON<7>). When enabled, OPAON forces the output driver of RC3/AN7/C12IN3-/OP1 for OPA1, and RC2/AN6/C12IN2-/OP2 for OPA2, into tri-state to pre- vent contention between the driver and the OPA output. FIGURE 11-1: OPA MODULE BLOCK DIAGRAM Note: When OPA1 or OPA2 is enabled, the RC3/AN7/C12IN3-/OP1 pin, or RC2/AN6/C12IN2-/OP2 pin respectively, is driven by the op amp output, not by the PORTC driver. Refer to the Electrical specifications for the op amp output drive capability. OPA1 OPA1CON<OPAON> TO ADC and Comparator MUXs RC7/AN9/OP1+ RC6/AN8/OP1- RC3/AN7/C12IN3-/OP1 OPA2 OPA2CON<OPAON> TO ADC and Comparator MUXs RB5/AN11/OP2+ RB4/AN10/OP2- RC2/AN6/C12IN2-/OP2 |
Codice articolo simile - PIC16F785 |
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Descrizione simile - PIC16F785 |
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