ICL7621DCBA

Overview

The ICL7621DCBA is a dual operational amplifier from the Renesas Electronics Corporation ICL7621 series. It features an auto-zero architecture designed to minimize offset voltage and drift over temperature variations. The device operates on a single supply voltage ranging from 1V to 8V or dual supplies up to ±4V. Key electrical characteristics include a gain-bandwidth product of 480 kHz, a slew rate of 160 mV/µs, and low input bias current. It is housed in an SOIC-8 surface-mount package suitable for general-purpose amplification applications.

Feature Summary

• Auto-zero circuitry reduces offset voltage and drift
• Single-supply operation capability
• Low input bias current performance

Applications

• Precision sensor signal conditioning
• Battery-powered instrumentation
• Data acquisition systems

Procurement Notes

Verify the exact suffix against manufacturer datasheets to confirm pinout compatibility and thermal specifications. Ensure the component matches the required operating temperature range and package tolerance. Cross-reference with official Renesas documentation to validate RoHS compliance status and specific lot traceability requirements before procurement.

Selection Notes

Select this component when low offset voltage stability is critical without requiring chopper-stabilized complexity. Consider the 480 kHz bandwidth limit for high-speed applications. Evaluate power consumption constraints as the quiescent current impacts battery life in portable designs compared to standard CMOS op-amps.

Part Context

Part of the ICL7621 family of dual auto-zero operational amplifiers. This series is known for combining precision analog performance with low power consumption. The DCBA variant specifically denotes the SOIC-8 surface-mount package configuration within the broader product line.

Replacement Considerations

Check for direct cross-references such as MAX7621 or ICL7621 variants with different suffixes. Verify pin-to-pin compatibility and ensure equivalent auto-zero performance metrics are maintained in substitute components.