ICL7612DCBA-T-HC

Overview

The ICL7612DCBA-T-HC is a single CMOS operational amplifier manufactured by Harris Corporation, housed in an 8-SOIC surface-mount package. It features a gain bandwidth product of 1.4 MHz and a slew rate of 1.6V/µs. The device operates with a supply voltage span ranging from 2 V to 16 V and draws a typical supply current of 10µA. Key electrical characteristics include an input bias current of 1 pA, an input offset voltage of 5 mV, and an output current capability of 40 mA per channel. It supports an operating temperature range of 0°C to 70°C.

Feature Summary

• Ultra-low input bias current of 1 pA for high-impedance signal applications
• Low power consumption with 10µA supply current
• Wide single-supply operation from 2 V to 16 V
• CMOS technology ensuring compatibility with standard logic levels

Applications

• High-impedance buffer circuits
• Precision instrumentation amplifiers
• Low-power analog signal conditioning
• Sensor interface circuits requiring minimal loading

Procurement Notes

Verify the manufacturer designation as Harris Corporation or its successors (e.g., Intersil, Renesas) due to corporate acquisitions. Confirm the suffix -HC indicates specific commercial grade or packaging variations if required by your design specifications. Ensure the 8-SOIC footprint matches your PCB layout constraints. Cross-reference the datasheet revision date to ensure parameter consistency with your simulation models.

Selection Notes

Select this component when low input bias current and low power consumption are critical design constraints. The 1.4 MHz bandwidth is suitable for general-purpose analog applications but may be insufficient for high-speed data acquisition. Consider the 5 mV input offset voltage for precision requirements; additional trimming may be necessary for high-accuracy systems. The wide supply voltage range offers flexibility in system power architecture design.

Part Context

This part belongs to the ICL7612 family of CMOS operational amplifiers known for their chopper-stabilized or auto-zero characteristics in some variants, though this specific model emphasizes low bias current. It is designed for applications where traditional bipolar op-amps would introduce excessive loading errors. The 8-SOIC package provides a compact solution for space-constrained designs while maintaining thermal performance within the specified commercial temperature range.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify pinout compatibility and electrical parameter equivalence before considering alternative manufacturers. Check for updated lead-free or RoHS-compliant versions from the current rights holder.