0.5MHz, Low Supply Voltage, Low Input Current BiMOS Operational Amplifiers

The CA5420A is an integrated circuit Operational Amplifier that combines PMOS Transistors and Bipolar Transistors on a single monolithic chip. It is designed and guaranteed to operate in Microprocessor Logic systems that use V+ = 5V, V- = GND, since it CAN operate down to 1V supplies. It will also be suitable for 3.3V Logic systems.
The CA5420A BiMOS Operational Amplifier features gateprotected PMOS Transistors in the input circuit to provide very high input impedance, very low input currents (less than 1pA). The internal bootstrapping network features a unique guardbanding technique for reducing the doubling of leakage current for every 10oC increase in temperature. The CA5420A operates at total supply voltages from 2V to 20V either single or dual supply. This Operational Amplifier is internally phase compensated to achieve stable operation in the unity gain follower configuration. Additionally, it has access terminals for a supplementary external capacitor if additional frequency roll-off is desired. Terminals are also provided for use in applications requiring input offset voltage nulling. The use of PMOS in the input stage results in common-mode input voltage capability down to 0.45V below the negative supply terminal, an important attribute for single supply application. The output stage uses a feedback OTA type Amplifier that CAN swing essentially from Rail-to-Rail The output driving current of 1.0mA (Min) is provided by using nonlinear current mirrors.
This device has guaranteed specifications for 5V operation over the full military temperature range of -55oC to 125oC.
The CA5420A has the same 8 lead pinout used for the industry standard 741.
By Intersil Corporation
CA5420A 's PackagesCA5420A 's pdf datasheet
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CA5420A Pinout, Pinouts
CA5420A pinout,Pin out
This is one package pinout of CA5420A,If you need more pinouts please download CA5420A's pdf datasheet.

CA5420A Application circuits
CA5420A circuits
This is one application circuit of CA5420A,If you need more circuits,please download CA5420A's pdf datasheet.


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