ICL7642EMJD

Overview

The ICL7642EMJD is a quad CMOS low-power operational amplifier manufactured by Analog Devices Inc./Maxim Integrated. It features a wide voltage supply range, supporting 2 V to 16 V in single-supply configurations and ±1 V to ±8 V in dual-supply setups. The device integrates internal clock oscillators and charge pumps to generate the necessary negative supply rail from a single positive source, eliminating the need for external components. This architecture enables efficient operation in battery-powered systems requiring bipolar supplies.

Feature Summary

• Integrates internal clock oscillators and charge pump circuitry to generate negative supply voltages from a single positive input.
• Supports wide voltage supply ranges suitable for both single-supply (2 V to 16 V) and dual-supply (±1 V to ±8 V) applications.
• Utilizes CMOS technology to achieve low power consumption characteristics.

Applications

• Battery-powered instrumentation systems
• Data acquisition circuits requiring bipolar supplies from single sources
• Low-power signal conditioning stages

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential availability constraints. Confirm package integrity and date codes upon receipt. Cross-reference part numbers carefully as legacy Maxim products may have specific handling requirements. Ensure compliance with RoHS standards if applicable to the specific revision. Validate electrical parameters against current datasheet specifications before integration into final designs.

Selection Notes

Select this component when designing circuits that require dual-rail operation but are constrained to single-supply power sources. The integrated charge pump simplifies board layout by removing external inductor-based converters. Consider the bandwidth and slew rate limitations inherent to low-power CMOS op-amps compared to high-speed alternatives. Evaluate thermal performance if operating near maximum supply voltage limits.

Part Context

This component belongs to the ICL7642 family of quad operational amplifiers. It is part of Analog Devices' portfolio acquired from Maxim Integrated, continuing the lineage of low-power analog solutions. The EMJD suffix typically denotes a specific surface-mount package variant within the broader ICL7642 product line, designed for automated assembly processes.

Replacement Considerations

Consult official documentation for verified substitute part numbers. Legacy status may limit immediate availability of identical replacements. Verify pin compatibility and electrical parameter equivalence before substituting with other quad op-amp families.