ICL7641ECPD+ Equivalent & Substitute Parts

Part Overview

The ICL7641ECPD+ is a CMOS linear amplifier integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. This device contains four independent operational amplifier circuits configured for rail-to-rail output operation. The ICL7641ECPD+ is classified as an active product with full production support and maintains ROHS3 compliance status.

Identification of equivalent and substitute parts is necessary to ensure design continuity, manage supply chain alternatives, and maintain performance specifications across manufacturing lots and procurement cycles.

Substiute Parts

ICL7641ECPD+

Analog Devices Inc./Maxim IntegratedIn Stock: 1191ICL7641ECPD+ Datasheet

Current PartRFQ

ICL7641ECPD+

Analog Devices Inc./Maxim IntegratedIn Stock: 1191ICL7641ECPD+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ICL7641ECPD+ is determined by strict equivalence across the following critical parameters:

Electrical Performance Criteria:

• Amplifier topology: CMOS technology
• Circuit count: Four independent operational amplifier circuits
• Output configuration: Rail-to-rail operation
• Slew rate: 1.6 V/µs
• Gain bandwidth product: 1.4 MHz
• Input bias current: 1 pA
• Input offset voltage: 20 mV
• Supply current: 1 mA per channel (4 channels total)
• Supply voltage range: 2 V to 16 V
• Operating temperature range: 0°C to 70°C

Mechanical & Packaging Criteria:

• Package type: 14-DIP (0.300", 7.62mm)
• Mounting technology: Through Hole
• Pin count: 14 pins

Compliance & Status Criteria:

• Product status: Active
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1 (Unlimited)

Parts qualify as direct substitutes only when all electrical, mechanical, and compliance parameters match exactly. No parameter deviation is permitted for substitution classification.

Parameter Comparison

Engineering Selection Recommendations

The ICL7641ECPD+ is an active product with full manufacturing support from Analog Devices Inc./Maxim Integrated. The device maintains ROHS3 compliance and carries MSL 1 moisture sensitivity classification, indicating unlimited shelf life under standard storage conditions.

Selection of equivalent parts for the ICL7641ECPD+ must be based on exact parameter matching across all electrical specifications, package configuration, and compliance certifications. The device is suitable for applications requiring four independent CMOS operational amplifiers with rail-to-rail output capability, low input bias current, and operation across a 2 V to 16 V supply range.

Through-hole mounting technology requires PCB design accommodation for 14-pin DIP footprint with 0.300-inch row spacing. Component procurement should specify the 14-PDIP supplier device package designation to ensure correct physical form factor delivery.

Frequently Asked Questions (FAQ)

Q: What defines a direct substitute for the ICL7641ECPD+?

A: A direct substitute must match all electrical parameters (slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, and supply voltage range), maintain identical package configuration (14-DIP, 0.300" spacing), support the same operating temperature range (0°C to 70°C), and carry equivalent compliance certifications (ROHS3, MSL 1).

Q: Can the ICL7641ECPD+ be replaced with a different package variant?

A: No. The 14-DIP (0.300", 7.62mm) through-hole package is a critical specification. Alternative package types such as surface-mount variants or different pin counts are not substitutes and require PCB redesign.

Q: Is the ICL7641ECPD+ suitable for applications requiring operation below 0°C or above 70°C?

A: No. The specified operating temperature range is 0°C to 70°C. Applications requiring extended temperature operation require alternative device selection with appropriate temperature ratings.

Q: What is the significance of the 1 pA input bias current specification?

A: The 1 pA input bias current is a defining characteristic of CMOS amplifier technology used in the ICL7641ECPD+. This ultra-low bias current is critical for high-impedance signal conditioning applications. Substitutes must maintain this specification.

Q: Does the ICL7641ECPD+ require special handling for moisture sensitivity?

A: No. The MSL 1 (Unlimited) classification indicates the device has unlimited shelf life under standard storage conditions. No special moisture-barrier packaging or baking procedures are required prior to assembly.

Q: What is the significance of the 1.4 MHz gain bandwidth product?

A: The 1.4 MHz gain bandwidth product defines the frequency response characteristics of each amplifier circuit. This parameter determines the maximum usable bandwidth for a given closed-loop gain configuration. Substitutes must maintain this specification for circuit performance equivalence.

Q: Can the ICL7641ECPD+ operate from a single supply voltage?

A: Yes. The device supports supply voltage operation from 2 V to 16 V. Single-supply operation is supported within this range, though dual-supply configurations are also permissible.