ICL7612DCBA Equivalent & Substitute Parts

Part Overview

The ICL7612DCBA is a general-purpose operational amplifier manufactured by Renesas Electronics Corporation, packaged in 8-SOIC surface-mount configuration. This device is classified as obsolete, indicating discontinued production and limited availability. The part operates across a 2V to 16V supply range with a 1.4 MHz gain-bandwidth product and 1.6V/µs slew rate, suitable for general analog signal processing applications. Due to its obsolete status, equivalent and substitute parts from active product lines are necessary for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Amplifier Type	General Purpose
Number of Circuits	1
Slew Rate	1.6 V/µs
Gain Bandwidth Product	1.4 MHz
Current - Input Bias	1 pA
Voltage - Input Offset	15 mV
Current - Supply	1 mA
Current - Output / Channel	40 mA
Voltage - Supply Span (Min)	2 V
Voltage - Supply Span (Max)	16 V
Operating Temperature	0°C ~ 70°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the ICL7612DCBA is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

Slew Rate: 1.6 V/µs (must match)
Gain Bandwidth Product: 1.4 MHz (must match)
Current - Input Bias: 1 pA (must match)
Voltage - Input Offset: 15 mV (must match for standard grade)
Current - Supply: 1 mA (must match)
Current - Output / Channel: 40 mA (must match)
Voltage - Supply Span: 2V to 16V (must match)
Amplifier Type: General Purpose (must match)
Number of Circuits: 1 (must match)

Mechanical Compatibility Criteria:

Package / Case: 8-SOIC (0.154", 3.90mm Width) (must match)
Mounting Type: Surface Mount (must match)

Substitute Categories:

Direct Substitutes (Identical Electrical Specifications): Parts maintaining all electrical parameters and operating temperature range of 0°C to 70°C with active product status and RoHS3 compliance.

Upgrade Substitutes (Extended Temperature Range): Parts with identical electrical specifications but extended operating temperature range of -40°C to 85°C, providing enhanced reliability for wider environmental conditions.

Similar Substitutes (Modified Electrical Specifications): Parts with tighter voltage input offset specification (5 mV instead of 15 mV) while maintaining all other electrical parameters, offering improved precision characteristics.

Parameter Comparison

Part Number	Manufacturer	Product Status	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA)	Input Offset (mV)	Supply Current (mA)	Output Current (mA)	Supply Span (V)	Temp Range (°C)	Output Type	RoHS Status	Packaging
ICL7612DCBA	Renesas Electronics	Obsolete	1.6	1.4	1	15	1	40	2-16	0 to 70	Standard	Non-compliant	8-SOIC
ICL7612DCBAZ	Renesas Electronics	Active	1.6	1.4	1	15	1	40	2-16	0 to 70	Standard	ROHS3 Compliant	8-SOIC (Tube)
ICL7611DCSA+	Analog Devices Inc./Maxim Integrated	Active	1.6	1.4	1	15	1	40	2-16	0 to 70	Rail-to-Rail	ROHS3 Compliant	8-SOIC (Tube)
ICL7611DCSA+T	Analog Devices Inc./Maxim Integrated	Active	1.6	1.4	1	15	1	40	2-16	0 to 70	Rail-to-Rail	ROHS3 Compliant	8-SOIC (Tape & Reel)
ICL7612DCSA+	Analog Devices Inc./Maxim Integrated	Active	1.6	1.4	1	15	1	40	2-16	0 to 70	Rail-to-Rail	ROHS3 Compliant	8-SOIC (Tube)
ICL7611DESA+	Analog Devices Inc./Maxim Integrated	Active	1.6	1.4	1	15	1	40	2-16	-40 to 85	Rail-to-Rail	ROHS3 Compliant	8-SOIC
ICL7611DESA+T	Analog Devices Inc./Maxim Integrated	Active	1.6	1.4	1	15	1	40	2-16	-40 to 85	Rail-to-Rail	ROHS3 Compliant	8-SOIC (Tape & Reel)
ICL7612DESA+	Analog Devices Inc./Maxim Integrated	Active	1.6	1.4	1	15	1	40	2-16	-40 to 85	Rail-to-Rail	ROHS3 Compliant	8-SOIC (Tube)
ICL7612DESA+T	Analog Devices Inc./Maxim Integrated	Active	1.6	1.4	1	15	1	40	2-16	-40 to 85	Rail-to-Rail	ROHS3 Compliant	8-SOIC (Tape & Reel)
ICL7611BCSA+	Analog Devices Inc./Maxim Integrated	Active	1.6	1.4	1	5	1	40	2-16	0 to 70	Rail-to-Rail	ROHS3 Compliant	8-SOIC (Tube)
ICL7611BCSA+T	Analog Devices Inc./Maxim Integrated	Active	1.6	1.4	1	5	1	40	2-16	0 to 70	Rail-to-Rail	ROHS3 Compliant	8-SOIC (Tape & Reel)

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications and Temperature Range):

Select ICL7612DCBAZ for applications requiring exact electrical and thermal equivalence to the obsolete ICL7612DCBA. This part maintains the 0°C to 70°C operating temperature range and all electrical specifications while offering active product status and RoHS3 compliance. Packaging is available in Tube format.

For Extended Temperature Applications:

Select ICL7612DESA+T or ICL7612DESA+ for designs requiring operation across the extended temperature range of -40°C to 85°C. These parts provide identical electrical specifications with enhanced thermal capability. ICL7612DESA+T is supplied in Tape & Reel packaging for automated assembly, while ICL7612DESA+ is supplied in Tube packaging.

For Rail-to-Rail Output Capability:

Select ICL7611DCSA+, ICL7611DCSA+T, ICL7611DESA+, or ICL7611DESA+T when rail-to-rail output swing is required. These parts maintain all electrical specifications of the original device while providing output capability to both supply rails. Temperature range selection follows the same criteria as above.

For Improved Input Offset Voltage Specification:

Select ICL7611BCSA+ or ICL7611BCSA+T when tighter input offset voltage specification (5 mV) is required for precision applications. These parts maintain the 0°C to 70°C temperature range and offer rail-to-rail output capability.

Compliance Considerations:

All substitute parts listed are RoHS3 compliant, addressing regulatory requirements that the original obsolete part does not meet. Selection between Tube and Tape & Reel packaging depends on assembly process requirements and volume considerations.

Frequently Asked Questions (FAQ)

Q: Can ICL7612DCBAZ directly replace ICL7612DCBA in existing designs?

A: Yes. ICL7612DCBAZ is electrically and mechanically identical to ICL7612DCBA, maintaining all electrical specifications and the 0°C to 70°C operating temperature range. The primary difference is active product status and RoHS3 compliance. Packaging format differs (Tube vs. unspecified), which may affect assembly processes.

Q: What is the difference between ICL7612DESA+T and ICL7612DESA+?

A: Both parts are electrically identical with extended -40°C to 85°C operating temperature range. The difference is packaging format: ICL7612DESA+T is supplied in Tape & Reel format for automated pick-and-place assembly, while ICL7612DESA+ is supplied in Tube format for manual or semi-automated handling.

Q: Why do some substitute parts have "Rail-to-Rail" output type while the original does not?

A: Rail-to-rail output capability is an additional feature provided by certain substitute parts (ICL7611 series). This feature allows output voltage to swing closer to the supply rails, providing greater output voltage range. This is a superset capability that does not prevent substitution; circuits designed for standard output will function with rail-to-rail devices.

Q: Are ICL7611BCSA+ and ICL7611BCSA+T suitable substitutes for the ICL7612DCBA?

A: ICL7611BCSA+ and ICL7611BCSA+T are suitable substitutes with one specification difference: input offset voltage is 5 mV instead of 15 mV. This represents improved precision and is generally compatible with existing designs. These parts also provide rail-to-rail output capability and maintain the 0°C to 70°C temperature range.

Q: What does RoHS3 compliance mean for my application?

A: RoHS3 compliance indicates the part meets Restriction of Hazardous Substances regulations, restricting use of lead and other hazardous materials. The original ICL7612DCBA is RoHS non-compliant. If your application or market requires RoHS compliance, all listed substitute parts meet this requirement.

Q: Can I use an extended temperature range part (DESA+) in an application only requiring 0°C to 70°C operation?

A: Yes. Extended temperature range parts are fully functional within the 0°C to 70°C range. Using an extended temperature part in a narrower temperature application introduces no compatibility issues and may provide additional design margin.

Q: What is the significance of the "+" suffix in part numbers like ICL7611DCSA+?

A: The "+" suffix indicates RoHS3 compliance and lead-free construction. This is a manufacturing and regulatory designation that does not affect electrical or mechanical compatibility.

Q: How do I choose between Tube and Tape & Reel packaging?

A: Tube packaging is suitable for lower-volume applications and manual assembly processes. Tape & Reel packaging is designed for automated pick-and-place assembly equipment and higher-volume production. Select based on your manufacturing process and volume requirements.

Q: Are all substitute parts available in the same 8-SOIC package?

A: Yes. All substitute parts listed use the 8-SOIC (0.154", 3.90mm Width) package, ensuring mechanical compatibility with existing PCB layouts and assembly processes.

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