ICL7621BCSA

Overview

The ICL7621BCSA is a dual operational amplifier from the ICL761X–ICL764X family, manufactured by Analog Devices Inc./Maxim Integrated. It features a monolithic CMOS design with industry-standard pinouts and operates within a supply voltage range of ±1V to ±8V. The device has an input offset voltage maximum of 5mV at +25°C and supports a commercial temperature range of 0°C to +70°C. It utilizes a fixed quiescent current setting and is housed in an 8-pin Slim Small Outline package.

Feature Summary

• Monolithic low-power CMOS architecture
• Ultra-low input bias current characteristics
• Rail-to-rail output voltage swing capability
• Industry-standard pinout configuration

Applications

• Battery-powered instruments
• Low-leakage amplifiers
• Long-time constant integrators
• Low-frequency active filters
• Picoammeters

Procurement Notes

Verify that the ordering suffix 'SA' corresponds specifically to the 8-pin Slim Small Outline package as defined in the manufacturer's documentation. Confirm the 'B' designation indicates the specified input offset voltage grade. Ensure the component meets the required commercial operating temperature range for the intended application environment before finalizing procurement.

Selection Notes

Select this component when a dual-channel amplifier with ultra-low input bias current is required. The fixed quiescent current simplifies circuit design compared to single-channel variants. Verify that the unity-gain bandwidth and slew rate meet the signal processing requirements, as these parameters are determined by the internal fixed current setting.

Part Context

This part belongs to the ICL761X–ICL764X series of operational amplifiers designed for applications requiring high input impedance and low power consumption. The series includes single, dual, triple, and quad configurations. The ICL7621 variant specifically provides two independent amplifiers in one package, sharing common power supplies and ground connections.

Replacement Considerations

Direct substitutes include other parts within the ICL761X–ICL764X family that share the same pinout and electrical specifications. Verify compatibility regarding package dimensions and thermal characteristics when replacing existing components in a design.