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Detailed Description:

The CA3130 is a BiMOS (Bipolar + MOS) operational amplifier featuring high-input impedance, very low input current, and fast response time. It combines PMOS transistors at the input for extremely low input bias current with bipolar transistors at the output, delivering high speed and drive capability.

This IC supports operation at very low input current levels—perfect for interfacing with high-impedance sensors, transducers, and low-level analog signals. The CA3130 is capable of single-supply or dual-supply operation, and features rail-to-rail output, internal compensation, and output swing close to ground.

The DIP-8 package makes it suitable for breadboards and PCB development for analog signal conditioning, oscillators, and biomedical circuits.

Key Features:

• Input Stage: MOSFET (PMOS) – ultra-high input impedance

• Output Stage: Bipolar – high speed and drive

• Very low input bias current (~10 pA)

• Fast slew rate: ~10 V/µs

• High open-loop gain and wide bandwidth

• Common-mode input voltage includes the negative rail

• Operates from ±1.5V to ±16V (or 3V to 32V single supply)

• Short-circuit protection and offset nulling support

• DIP-8 package – easy to prototype

Technical Specifications:

How to Use:

1. Connect Vcc and GND or dual ±V supplies

2. Use non-inverting or inverting op-amp configurations

3. Add external components (resistors/capacitors) to set gain/filtering

4. Utilize offset nulling pins (pin 1 and pin 5) for precision control

5. Use for amplifying analog signals from sensors or transducers

Applications:

• Analog signal conditioning

• Sensor and transducer amplification

• Biomedical electronics (ECG/EMG circuits)

• Precision voltage followers and buffers

• Oscillator and waveform generators

• Active filters and integrators

• Low-leakage analog front ends

Package Includes:

• 1 × CA3130 BiMOS Op-Amp IC – DIP-8 Package