ICL7612BCPAZ Equivalent & Substitute Parts

Part Overview

The ICL7612BCPAZ is a general-purpose operational amplifier manufactured by Renesas Electronics Corporation, housed in an 8-PDIP through-hole package. This device is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity. The ICL7612BCPAZ delivers a 1.4 MHz gain-bandwidth product with a 1.6 V/µs slew rate, operating across a 2 V to 16 V supply range. Due to its obsolete status, equivalent alternatives from active product lines are necessary for new designs and component replenishment.

Substiute Parts

ICL7612BCPAZ

Renesas Electronics CorporationIn Stock: 932ICL7612BCPAZ Datasheet

Current PartRFQ

ICL7611BCPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 3327ICL7611BCPA+ Datasheet

DirectRFQ

ICL7611DCPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 971ICL7611DCPA+ Datasheet

SimilarRFQ

TLC251BCP

Texas InstrumentsIn Stock: 2102TLC251BCP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ICL7612BCPAZ is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Amplifier Type: General Purpose
• Number of Circuits: 1
• Slew Rate: 1.6 V/µs (minimum acceptable)
• Gain Bandwidth Product: 1.4 MHz (minimum acceptable)
• Current - Input Bias: 1 pA (maximum acceptable)
• Voltage - Input Offset: 5 mV (maximum acceptable for standard grade)
• Current - Supply: 1 mA (nominal)
• Voltage - Supply Span: 2 V to 16 V (operating range)
• Operating Temperature: 0°C to 70°C

Mechanical Compatibility Criteria:

• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Supplier Device Package: 8-PDIP

Regulatory Compliance:

• RoHS3 Compliant
• REACH Unaffected
• Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts are grouped into two categories: Direct Substitutes (pin-compatible with identical electrical specifications) and Similar Substitutes (pin-compatible with enhanced or alternative electrical characteristics that maintain functional equivalence within the application envelope).

Parameter Comparison

Engineering Selection Recommendations

ICL7611BCPA+ (Direct Substitute - Recommended Primary Choice)

The ICL7611BCPA+ from Analog Devices Inc./Maxim Integrated is the primary recommended substitute for the obsolete ICL7612BCPAZ. This device maintains identical electrical specifications across all critical parameters: 1.6 V/µs slew rate, 1.4 MHz gain-bandwidth product, 1 pA input bias current, and 5 mV input offset voltage. The ICL7611BCPA+ is pin-compatible in the 8-PDIP package and operates across the same 2 V to 16 V supply range and 0°C to 70°C temperature range. The device holds Active product status, ensuring long-term availability and supply chain continuity. Enhanced rail-to-rail output capability provides additional design flexibility. Full RoHS3 compliance and REACH unaffected status maintain regulatory alignment. Current inventory of 3,225 pieces supports immediate procurement requirements.

ICL7611DCPA+ (Alternative Substitute - Extended Temperature Grade)

The ICL7611DCPA+ from Analog Devices Inc./Maxim Integrated serves as an alternative substitute with identical mechanical and primary electrical characteristics. This device differs in voltage input offset specification at 15 mV (versus 5 mV for the primary substitute), which remains within acceptable tolerance for general-purpose amplifier applications. The ICL7611DCPA+ maintains the same 1.6 V/µs slew rate, 1.4 MHz gain-bandwidth product, and 2 V to 16 V supply range. Active product status and full regulatory compliance (RoHS3, REACH unaffected) are maintained. This variant is suitable for applications where the relaxed input offset specification is acceptable. Current inventory of 884 pieces is available.

TLC251BCP (Alternative Substitute - Enhanced Performance)

The TLC251BCP from Texas Instruments represents an alternative substitute with enhanced electrical performance characteristics. This device operates within the same 8-DIP package and 0°C to 70°C temperature range, maintaining mechanical compatibility. The TLC251BCP delivers superior slew rate (5.3 V/µs versus 1.6 V/µs) and higher gain-bandwidth product (2.2 MHz versus 1.4 MHz), along with lower input bias current (0.7 pA) and significantly lower input offset voltage (390 µV). The device operates across a wider minimum supply voltage range (1.4 V versus 2 V), providing enhanced flexibility in low-voltage applications. Product status is Last Time Buy, indicating limited future availability. RoHS3 compliance and REACH unaffected status are maintained. Current inventory of 2,000 pieces is available. This substitute is appropriate for designs requiring enhanced dynamic performance within the general-purpose amplifier category.

Frequently Asked Questions (FAQ)

Q: Can the ICL7611BCPA+ directly replace the ICL7612BCPAZ without circuit modification?

A: Yes. The ICL7611BCPA+ is pin-compatible and maintains identical electrical specifications across all critical parameters including slew rate, gain-bandwidth product, input bias current, input offset voltage, and supply voltage range. Direct substitution in the 8-PDIP package is supported without circuit modification.

Q: What is the primary difference between the ICL7611BCPA+ and ICL7611DCPA+ substitutes?

A: The primary difference is the voltage input offset specification. The ICL7611BCPA+ specifies 5 mV input offset voltage, matching the original ICL7612BCPAZ. The ICL7611DCPA+ specifies 15 mV input offset voltage. Both devices maintain identical slew rate, gain-bandwidth product, and supply voltage specifications. Selection depends on application tolerance requirements for input offset voltage.

Q: Why is the TLC251BCP listed as an alternative substitute if it has different electrical specifications?

A: The TLC251BCP is listed as an alternative substitute because it maintains mechanical compatibility (8-DIP package, through-hole mounting) and functional equivalence as a general-purpose amplifier within the same operating temperature range and supply voltage envelope. The enhanced performance characteristics (higher slew rate, higher gain-bandwidth product, lower input offset voltage) make it suitable for applications where the original specifications are met or exceeded. However, circuit validation is required to confirm suitability for specific applications.

Q: What is the significance of "Last Time Buy" status for the TLC251BCP?

A: Last Time Buy status indicates that Texas Instruments has announced end-of-life for this product. While current inventory of 2,000 pieces is available, future procurement will not be possible after the Last Time Buy date. For new designs or long-term production requirements, the ICL7611BCPA+ or ICL7611DCPA+ are recommended as they maintain Active product status.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The ICL7611BCPA+, ICL7611DCPA+, and TLC251BCP are all RoHS3 compliant and REACH unaffected, maintaining regulatory alignment with the original ICL7612BCPAZ.

Q: Can the ICL7612BCPAZ be used in new designs?

A: No. The ICL7612BCPAZ is classified as Obsolete. New designs must utilize one of the active substitute parts: ICL7611BCPA+ (recommended) or ICL7611DCPA+. The TLC251BCP may be considered for enhanced performance requirements, subject to Last Time Buy availability constraints.

Q: What is the difference between the 8-DIP and 8-PDIP package designations?

A: These designations refer to the same physical package format: an 8-pin dual in-line package with 0.300" (7.62mm) row spacing. The terms are used interchangeably in industry documentation. All substitute parts are housed in this identical package format, ensuring mechanical compatibility.

Q: Does the rail-to-rail output capability of the ICL7611BCPA+ affect compatibility with the original ICL7612BCPAZ?

A: No. Rail-to-rail output capability is an enhanced feature that does not affect pin compatibility or basic functional equivalence. Circuits designed for the ICL7612BCPAZ will operate correctly with the ICL7611BCPA+. The rail-to-rail output provides additional design flexibility for applications requiring output swing closer to the supply rails.