Intersil CA3130EZ Op-Amp, BiMOS, 15MHz, DIP-8 Package

The Intersil CA3130EZ is a high-performance 15MHz BiMOS operational amplifier, expertly integrating MOSFET input stages with CMOS output technology. This unique architecture combines the advantageous characteristics of both CMOS and bipolar transistors, resulting in a versatile and powerful component for modern electronic design.

At its core, gate-protected P-channel MOSFET (PMOS) transistors form the input circuit, delivering an exceptionally high input impedance and remarkably low input current. This design also provides superior speed performance. A significant benefit of the PMOS input stage is its extended common-mode input-voltage range, which can reach down to 0.5V below the negative supply rail. This capability makes the CA3130EZ exceptionally well-suited for single-supply applications, a critical requirement in many contemporary circuits.

The output stage utilises a CMOS transistor pair, enabling the output voltage to swing to within 10mV of either supply rail when driving high-impedance loads. This 'rail-to-rail' output behaviour maximises dynamic range in low-voltage operations. The device operates across a wide supply voltage range from 5V to 16V (or ±2.5V to ±8V in split-supply configurations), offering great design flexibility. External phase compensation is easily achieved with a single capacitor, and the package includes terminals for offset voltage adjustment and output stage strobing control.

Key Features & Specifications

• Architecture: BiMOS operational amplifier with MOSFET input/CMOS output.
• Gain Bandwidth Product: 15MHz.
• Slew Rate: 9V/µs (typical).
• Supply Voltage Range: 5V to 16V single supply, or ±2.5V to ±8V dual supply.
• Input Stage: PMOS transistors providing very high input impedance and low input current.
• Output Stage: CMOS allowing swing to near supply rails.
• Package: Industry-standard 8-pin DIP (DIP