ICL7612DCBAZ Equivalent & Substitute Parts

Part Overview

The ICL7612DCBAZ is a general-purpose operational amplifier manufactured by Renesas Electronics Corporation, housed in an 8-SOIC surface mount package. This single-circuit amplifier is designed for applications requiring low-power operation with a supply voltage range of 2V to 16V and an operating temperature range of 0°C to 70°C. The device is Active in product status and ROHS3 compliant. Equivalent and substitute parts are identified to support design flexibility, inventory management, and supply chain continuity for applications where the primary part number becomes unavailable or where alternative performance characteristics are acceptable within system requirements.

Key Parameters

Parameter	Value	Unit
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 to 70	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	-
Mounting Type	Surface Mount	-
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitute parts for the ICL7612DCBAZ are classified based on electrical parameter compatibility and package equivalence. The primary substitution criteria are:

Critical Matching Parameters:

Amplifier Type: General Purpose
Number of Circuits: 1
Package / Case: 8-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount
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
Voltage - Supply Span (Min): 2 V
Voltage - Supply Span (Max): 16 V
Operating Temperature: 0°C to 70°C

Direct Equivalents maintain all electrical parameters and differ only in packaging format (Tube versus Tape & Reel) or minor manufacturer designations. These include ICL7612DCSA+ and ICL7611DCSA+.

Upgrade Alternatives provide identical electrical performance but extend the operating temperature range to -40°C to 85°C, enabling use in wider environmental conditions. The ICL7611DESA+ represents this category.

Similar Alternatives maintain core electrical specifications but feature improved voltage input offset characteristics (5 mV versus 15 mV), providing enhanced precision. These include ICL7611BCSA+, ICL7612BCSA+, and ICL7612BESA+. The ICL7612BESA+ additionally extends operating temperature to -40°C to 85°C.

Functional Alternatives provide general-purpose amplification in the same package but with different electrical performance parameters. The LM301ADR2G from onsemi operates across a different supply voltage range (10V to 36V minimum) and exhibits different slew rate and input bias current characteristics.

Parameter Comparison

Part Number	Manufacturer	Slew Rate (V/µs)	Gain Bandwidth Product (MHz)	Input Bias Current (pA)	Input Offset Voltage (mV)	Supply Current (mA)	Output Current (mA)	Supply Voltage Min (V)	Supply Voltage Max (V)	Operating Temperature (°C)	Package	Output Type
ICL7612DCBAZ	Renesas Electronics	1.6	1.4	1	15	1	40	2	16	0 to 70	8-SOIC	-
ICL7611DCSA+	Analog Devices Inc./Maxim Integrated	1.6	1.4	1	15	1	-	2	16	0 to 70	8-SOIC	Rail-to-Rail
ICL7611DCSA+T	Analog Devices Inc./Maxim Integrated	1.6	1.4	1	15	1	-	2	16	0 to 70	8-SOIC	Rail-to-Rail
ICL7612DCSA+	Analog Devices Inc./Maxim Integrated	1.6	1.4	1	15	1	-	2	16	0 to 70	8-SOIC	Rail-to-Rail
ICL7611DESA+	Analog Devices Inc./Maxim Integrated	1.6	1.4	1	15	1	-	2	16	-40 to 85	8-SOIC	Rail-to-Rail
ICL7611BCSA+	Analog Devices Inc./Maxim Integrated	1.6	1.4	1	5	1	-	2	16	0 to 70	8-SOIC	Rail-to-Rail
ICL7612BCSA+	Analog Devices Inc./Maxim Integrated	1.6	1.4	1	5	1	-	2	16	0 to 70	8-SOIC	Rail-to-Rail
ICL7612BESA+	Analog Devices Inc./Maxim Integrated	1.6	1.4	1	5	1	-	2	16	-40 to 85	8-SOIC	Rail-to-Rail
LM301ADR2G	onsemi	0.5	1.4	70	2	1.8	-	10	36	0 to 70	8-SOIC	-

Engineering Selection Recommendations

Direct Substitution (Electrical and Functional Equivalence):

ICL7612DCSA+ and ICL7611DCSA+ provide direct electrical equivalence to the ICL7612DCBAZ with identical performance across all specified parameters. Selection between these parts depends on packaging requirements: ICL7612DCSA+ is supplied in Tube packaging, while ICL7611DCSA+T is supplied in Tape & Reel format. Both are Active products with ROHS3 compliance and MSL 1 rating.

Extended Temperature Range Substitution:

ICL7611DESA+ and ICL7612BESA+ extend the operating temperature range to -40°C to 85°C while maintaining electrical performance. These parts are suitable for applications requiring operation beyond the standard 0°C to 70°C range. Both are Active products with full compliance certifications.

Improved Precision Substitution:

ICL7611BCSA+, ICL7612BCSA+, and ICL7612BESA+ reduce the input offset voltage specification to 5 mV, providing enhanced precision compared to the 15 mV specification of the ICL7612DCBAZ. These parts maintain all other electrical parameters and are suitable for applications where lower offset voltage improves system accuracy. ICL7612BESA+ combines improved precision with extended temperature range.

Functional Alternative (Different Electrical Characteristics):

LM301ADR2G from onsemi operates within a different supply voltage range (10V to 36V) and exhibits different input bias current (70 nA) and slew rate (0.5 V/µs) characteristics. This part is suitable only for applications where the different electrical specifications are compatible with system requirements.

All substitute parts listed are Active products with ROHS3 compliance, MSL 1 rating, and REACH Unaffected status, ensuring regulatory compliance equivalent to the primary part.

Frequently Asked Questions (FAQ)

Q: Can ICL7612DCSA+ be used as a direct replacement for ICL7612DCBAZ?

A: Yes. ICL7612DCSA+ provides identical electrical performance across all specified parameters including slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, and supply voltage range. The primary difference is the packaging format (Tube for DCSA+ versus the original packaging designation). Both operate across 0°C to 70°C and are housed in 8-SOIC packages.

Q: What is the difference between ICL7611DCSA+ and ICL7612DCSA+?

A: Both parts provide identical electrical performance and are housed in 8-SOIC packages. The primary distinction is the base product number designation (ICL7611 versus ICL7612), which reflects different manufacturer product lines. Both are manufactured by Analog Devices Inc./Maxim Integrated and are suitable substitutes for the ICL7612DCBAZ.

Q: When should I use ICL7611DESA+ instead of ICL7612DCBAZ?

A: ICL7611DESA+ is selected when the application requires operation at temperatures below 0°C or above 70°C, as it extends the operating range to -40°C to 85°C. All other electrical parameters remain identical. This part is suitable for industrial, automotive, or environmental applications with extended temperature requirements.

Q: What advantage do the "B" grade parts (ICL7611BCSA+, ICL7612BCSA+, ICL7612BESA+) provide?

A: The "B" grade parts reduce the input offset voltage specification from 15 mV to 5 mV, providing improved precision and accuracy. These parts are suitable for applications where lower offset voltage reduces system errors. ICL7612BESA+ additionally extends the operating temperature range to -40°C to 85°C.

Q: Is LM301ADR2G a suitable substitute for ICL7612DCBAZ?

A: LM301ADR2G is a functional alternative only for applications where different electrical specifications are acceptable. This part operates across a different supply voltage range (10V to 36V minimum versus 2V to 16V), exhibits higher input bias current (70 nA versus 1 pA), and lower slew rate (0.5 V/µs versus 1.6 V/µs). Direct substitution is not recommended without circuit redesign verification.

Q: What is the difference between Tube and Tape & Reel packaging?

A: Tube packaging (standard for most listed parts) is used for manual handling and lower-volume applications. Tape & Reel packaging (designated with "T" suffix, such as ICL7611DCSA+T) is used for automated assembly processes and higher-volume production. Both formats contain identical components; the selection depends on manufacturing process requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating and REACH Unaffected status, ensuring regulatory compliance equivalent to the primary ICL7612DCBAZ part.

Q: Can I mix different substitute parts in the same design?

A: Yes, provided the electrical specifications of each part are compatible with the specific circuit sections where they are used. For example, precision-critical sections could use ICL7612BESA+ while other sections use ICL7612DCSA+. However, this approach requires careful circuit analysis to ensure system performance meets requirements.

Q: What is the inventory status of substitute parts?

A: Inventory availability varies by part number. ICL7612DCBAZ has 15,550 units in stock. Substitute parts range from 691 to 3,556 units in stock. Specific inventory levels should be verified at the time of procurement to ensure supply continuity.

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