ICL7642CCPD Equivalent & Substitute Parts

Part Overview

The ICL7642CCPD is a CMOS amplifier integrated circuit containing four independent rail-to-rail output circuits in a 14-DIP through-hole package. This device is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and production requirements. The ICL7642CCPD operates across a wide supply voltage range of 2V to 16V with low input bias current and moderate bandwidth characteristics suitable for general analog signal conditioning applications.

Substiute Parts

ICL7642CCPD

Analog Devices Inc./Maxim IntegratedIn Stock: 2210ICL7642CCPD Datasheet

Current PartRFQ

ICL7642CCPD+

Analog Devices Inc./Maxim IntegratedIn Stock: 1353ICL7642CCPD+ Datasheet

DirectRFQ

TLC2274CN

Texas InstrumentsIn Stock: 8941TLC2274CN Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ICL7642CCPD is determined by the following critical parameters:

Package Compatibility: All substitute parts must utilize the 14-DIP (0.300", 7.62mm) through-hole package to ensure mechanical and electrical compatibility with existing printed circuit board layouts.

Circuit Configuration: All substitute parts must contain four independent amplifier circuits to maintain functional equivalence in multi-channel applications.

Output Characteristics: Rail-to-rail output capability is required to preserve signal swing performance across the specified supply voltage range.

Supply Voltage Range: Substitute parts must operate within the minimum 2V to maximum 16V supply span to ensure compatibility with existing power distribution architectures.

Operating Temperature: Substitute parts must support the 0°C to 70°C operating temperature range to maintain thermal performance specifications.

Input Bias Current: Low input bias current (1 pA) is a defining characteristic of the ICL7642CCPD and is preserved in direct equivalents.

The ICL7642CCPD+ represents a direct packaging variant with identical electrical specifications. The TLC2274CN is a manufacturer-recommended substitute offering enhanced performance characteristics while maintaining core compatibility parameters.

Parameter Comparison

Engineering Selection Recommendations

ICL7642CCPD+ (Direct Equivalent): This part is a direct substitute for the ICL7642CCPD, offering identical electrical specifications and the same 14-DIP package configuration. The primary distinction is packaging format (tube) and improved RoHS3 compliance status. Selection of ICL7642CCPD+ is appropriate for applications requiring exact electrical performance matching and where the obsolete product status of the original part necessitates component refresh.

TLC2274CN (Manufacturer-Recommended Substitute): The TLC2274CN is an active product from Texas Instruments that maintains core compatibility through identical package, circuit count, output type, and operating temperature range. This substitute exhibits enhanced performance characteristics including higher slew rate (3.6V/µs versus 1.6V/µs), increased gain bandwidth product (2.25 MHz versus 1.4 MHz), and improved input offset voltage (300 µV versus 10 mV). The TLC2274CN requires minimum supply voltage of 4.4V compared to 2V for the ICL7642CCPD, and exhibits higher supply current consumption (4.8mA versus 1mA per four channels). The TLC2274CN is RoHS3 compliant and maintains active product status, providing long-term availability assurance. Selection of TLC2274CN is appropriate for new designs or production transitions where enhanced performance and regulatory compliance are required, provided that the minimum supply voltage requirement and increased current consumption are accommodated by the application circuit design.

Frequently Asked Questions (FAQ)

Q: Can the TLC2274CN directly replace the ICL7642CCPD in existing circuit boards without modification?

A: The TLC2274CN shares the same 14-DIP package footprint and pinout compatibility, enabling direct physical substitution on printed circuit boards. However, the TLC2274CN requires a minimum supply voltage of 4.4V, whereas the ICL7642CCPD operates from 2V. Applications utilizing supply voltages between 2V and 4.4V require circuit modification. Additionally, the TLC2274CN exhibits higher supply current consumption (4.8mA versus 1mA per four channels), which may require power supply capacity evaluation.

Q: What is the difference between ICL7642CCPD and ICL7642CCPD+?

A: Both parts are electrically identical CMOS amplifiers with four circuits, identical slew rate, gain bandwidth product, and input bias current specifications. The primary differences are packaging format (ICL7642CCPD+ is supplied in tube packaging) and RoHS compliance status (ICL7642CCPD+ is ROHS3 compliant while the original is non-compliant). Both parts are classified as obsolete products.

Q: Why does the TLC2274CN have higher supply current consumption than the ICL7642CCPD?

A: The TLC2274CN is classified as a general-purpose amplifier with enhanced performance specifications including higher slew rate and gain bandwidth product. These performance enhancements result in increased quiescent current consumption. The TLC2274CN draws 4.8mA across four channels compared to 1mA for the ICL7642CCPD.

Q: Are all three parts RoHS compliant?

A: The ICL7642CCPD is RoHS non-compliant. Both ICL7642CCPD+ and TLC2274CN are ROHS3 compliant, meeting current regulatory requirements for hazardous substance restrictions.

Q: What is the significance of the 4.4V minimum supply voltage requirement for the TLC2274CN?

A: The TLC2274CN requires a minimum supply voltage of 4.4V, whereas the ICL7642CCPD operates from 2V minimum. Applications designed for low-voltage operation (2V to 4.4V range) cannot utilize the TLC2274CN without circuit redesign to increase the supply voltage above 4.4V.

Q: Can the ICL7642CCPD+ be used as a drop-in replacement for the ICL7642CCPD?

A: Yes, the ICL7642CCPD+ is a direct electrical equivalent with identical performance specifications and package configuration. The primary consideration is packaging format; ICL7642CCPD+ is supplied in tube packaging. Both parts are obsolete products.

Q: What are the key performance differences between the ICL7642CCPD and TLC2274CN?

A: The TLC2274CN offers superior dynamic performance with slew rate of 3.6V/µs (versus 1.6V/µs) and gain bandwidth product of 2.25 MHz (versus 1.4 MHz). The TLC2274CN also provides improved input offset voltage of 300 µV compared to 10 mV. These enhancements make the TLC2274CN suitable for applications requiring faster signal processing and lower offset voltage errors. Trade-offs include higher supply current consumption and higher minimum supply voltage requirement.