ICL7621DCBA-T

Overview

The ICL7621DCBA-T is a dual, low-power CMOS operational amplifier manufactured by Renesas Electronics. It features a gain-bandwidth product of 480 kHz and a slew rate of 160 mV/µs. The device operates on supply voltages ranging from 1 V to 8 V (dual) or 2 V to 16 V (single). Key electrical characteristics include an input offset voltage of 15 mV, input bias current of 50 pA, and operating power current of 500 µA. It provides a common-mode rejection ratio of 70 dB and a power supply rejection ratio of 80 dB. The component is housed in an SOIC-8 surface-mount package.

Feature Summary

• Dual-channel CMOS architecture designed for low-power applications
• Capable of operation with single or dual power supplies
• Low input bias current suitable for high-impedance circuits

Applications

• Battery-powered instrumentation systems
• Portable measurement devices
• General-purpose signal conditioning

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when ordering. Confirm RoHS compliance status through official datasheets as older variants may differ. Ensure the supplier source is authorized to guarantee authenticity. Check for lead time variations due to manufacturing updates. Validate that the SOIC-8 footprint matches your PCB design requirements before finalizing procurement.

Selection Notes

Select this component for designs requiring low quiescent current and moderate bandwidth. Compare input offset voltage specifications against precision requirements. Consider the SOIC-8 package constraints for thermal management. Evaluate supply voltage ranges to ensure compatibility with available power rails. Review noise density specifications if signal integrity is critical.

Part Context

This part belongs to the ICL7621 series of dual operational amplifiers originally developed by Intersil and now produced by Renesas. The series is characterized by CMOS technology offering low power consumption. Variants exist in different packages including PDIP and SOIC. The DCBA designation specifies the commercial temperature range and SOIC-8 surface-mount form factor.

Replacement Considerations

Direct substitutes include ICL7621DCPAZ and ICL7621DCSA. Verify pinout compatibility and package dimensions before substitution. Check if alternative manufacturers offer equivalent performance metrics.