The PMOS transistors use within the input phase will result in common-mode input-voltage capacity down to 0.5V of the negative terminal supply, a significant attribute within the applications of single-supply. In the input circuit, PMOS transistors are utilized for providing extremely high i/p impedance, low i/p current & excellent speed performance. The performance of this is a high speed, so it is appropriate for the applications of less input current.īoth the op-amps like CA3130A & CA3130 combine the improvements of both bipolar & CMOS transistors. The inputs of the IC mainly include MOSFET transistors to provide extremely high input impedance & low input current like 10pA. This IC is a 15 MHz BiMOS op-amp through MOSFET inputs & bipolar o/p. The inverting input can be given to a photodiode. Shadow Circuit using CA3130 Op-Ampīy changing the variable resistor, the flow of current at the input toward pin3 is set to a reference stage. Here, the op-amp in the circuit is designed like a voltage comparator where its noninverting terminal is allied to an R1 potential divider & variable resistor (VR). The photo diode’s PN-junction provides light current once it is connected in forwarding bias. Offset nulling is attained by connecting a potentiometer across pins 1 & 5. This op-amp is used for compensation of phase to drive CMOS digital circuits within the applications of the comparator. It is perfect for the applications of a single supplyĬA3130 CMOS op-amp performs single & dual supply functions but the main difference between them is, the 4th pin is connected to GND in single-supply operation whereas the pin-8 strobes the o/p phase into quiescence.Op-amp included with MOSFET on the output.CMOS o/p stage allows swing of signal to any or both supply rails.Common mode i/p voltage range mainly includes -ve supply rail and input terminals can swing 0.5V under -ve supply rail.Double supply ranges from – ☒.5V to ☘V.DC i/p voltage ranges from +8V to -0.5V.CMRR (Common Mode Rejection Ratio) is 80dB.Duration of o/p short circuit is Indefinite.The features and specifications of the CA3130 CMOS op-amp include the following. Pin8 (Strobe): It is used to switch off the o/p stage.Pin7 (Vcc+): It is a voltage supply pin where the voltage ranges from 5V – 16V.
Pin5 (Offset Null Pin): It is used to fix the offset voltage.Pin3 (Non-inverting Pin IN +): An uneven voltage is given to this IN+ pin.Pin2 (Inverting Pin IN –): A stable voltage is given to this IN-pin.Pin1 (Offset Null Pin): It is used to fix the offset voltage.
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