CLC4601ISO14X Equivalent & Substitute Parts Reference

Part Overview

The CLC4601ISO14X is a Current Feedback Amplifier (CFA) quad-channel integrated circuit manufactured by MaxLinear, Inc., housed in a 14-SOIC surface mount package. This device is classified as obsolete, indicating discontinued production and limited availability in the market. The part delivers a slew rate of 1500V/µs with a gain bandwidth product of 550 MHz, making it suitable for high-speed signal conditioning applications.

Due to its obsolete status, sourcing equivalent or substitute components becomes necessary for design continuity, production support, and long-term system reliability. Substitute parts must maintain compatibility across electrical performance parameters, mechanical packaging, and thermal operating ranges to ensure direct replacement capability.

Key Parameters

Parameter	CLC4601ISO14X	Unit
Amplifier Type	Current Feedback	—
Number of Circuits	4	Channels
Slew Rate	1500	V/µs
Gain Bandwidth Product	550	MHz
-3dB Bandwidth	550	MHz
Current - Input Bias	2.6	µA
Voltage - Input Offset	2.7	mV
Current - Supply (Total)	20.8	mA
Current - Output / Channel	52	mA
Voltage - Supply Span (Min)	8	V
Voltage - Supply Span (Max)	12	V
Operating Temperature Range	-40 to 85	°C
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
Moisture Sensitivity Level (MSL)	2 (1 Year)	—

Substitute Part Grouping Explanation

Substitution eligibility for the CLC4601ISO14X is determined by the following critical parameters:

Primary Compatibility Criteria:

Amplifier Type: Current Feedback (mandatory)
Number of Circuits: 4 channels (mandatory)
Package / Case: 14-SOIC form factor (mandatory for PCB compatibility)
Mounting Type: Surface Mount (mandatory)
Operating Temperature Range: Must encompass or match -40°C to 85°C
Voltage Supply Span: Must support 8V to 12V operation range

Secondary Performance Parameters:

Slew Rate: 1500V/µs (baseline; higher values acceptable)
Gain Bandwidth Product: 550 MHz (baseline; higher values acceptable)
-3dB Bandwidth: 550 MHz (baseline; higher values acceptable)
Current - Output / Channel: 52 mA (baseline; higher values acceptable)

Substitute parts are grouped into two categories based on their electrical performance alignment with the original specification:

Category A - High-Performance Substitutes: Parts exceeding the original slew rate and bandwidth specifications while maintaining current feedback topology and 14-SOIC packaging.

Category B - Compatible Substitutes: Parts meeting or closely matching the original electrical specifications with equivalent or superior performance margins.

Parameter Comparison

Parameter	CLC4601ISO14X	AD8004ARZ-14	LMH6722MA/NOPB	LT1397CS#PBF	OPA4684IDR	Unit
Amplifier Type	Current Feedback	Current Feedback	Current Feedback	Current Feedback	Current Feedback	—
Number of Circuits	4	4	4	4	4	Channels
Slew Rate	1500	3000	1800	800	780	V/µs
Gain Bandwidth Product	550	30	—	—	1900	MHz
-3dB Bandwidth	550	250	400	400	95	MHz
Current - Input Bias	2.6	40	—	10	5	µA
Voltage - Input Offset	2.7	1	—	1	1.5	mV
Current - Supply (Total)	20.8	14	5.6	4.6	1.7	mA
Current - Output / Channel	52	50	70	80	160	mA
Voltage - Supply Span (Min)	8	4	8 (±4)	4	2.8	V
Voltage - Supply Span (Max)	12	12	12.5 (±6.25)	12	12	V
Operating Temperature Range	-40 to 85	-40 to 85	—	0 to 70	-40 to 85	°C
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	—
Product Status	Obsolete	Active	Active	Active	Active	—
RoHS Status	—	ROHS3 Compliant	—	ROHS3 Compliant	ROHS3 Compliant	—

Engineering Selection Recommendations

Primary Recommendation: AD8004ARZ-14 / AD8004ARZ-14-REEL7

The AD8004ARZ-14 series from Analog Devices Inc. represents the optimal substitute for the CLC4601ISO14X. Both variants (tube packaging and cut tape with Digi-Reel) maintain identical electrical specifications. This substitute offers:

Active product status ensuring long-term availability and manufacturing support
ROHS3 compliance and REACH unaffected status for regulatory alignment
Moisture Sensitivity Level 1 (unlimited shelf life) versus MSL 2 on the original part
Superior slew rate of 3000V/µs, doubling the original specification
Identical 14-SOIC package and surface mount configuration
Operating temperature range of -40°C to 85°C matching the original
Supply voltage range of 4V to 12V, exceeding the original 8V to 12V requirement

The AD8004ARZ-14-REEL7 variant is preferred for high-volume production environments due to its cut tape and Digi-Reel packaging format.

Secondary Recommendation: LMH6722MA/NOPB or LMH6722MAX/NOPB

National Semiconductor's LMH6722 series provides an alternative with active product status and VIP10™ series designation. These parts deliver:

Slew rate of 1800V/µs, exceeding the original by 20%
-3dB bandwidth of 400 MHz, slightly below the original 550 MHz specification
Reduced supply current of 5.6 mA versus 20.8 mA on the original
Output current per channel of 70 mA, meeting the 52 mA requirement
Dual supply operation capability (±4V to ±6.25V) in addition to single supply (8V to 12.5V)
14-SOIC package compatibility

The LMH6722MAX/NOPB variant offers higher inventory availability (1700 pcs) compared to the MA variant (1108 pcs).

Tertiary Recommendation: LT1397CS#PBF or LT1397CS#TRPBF

Analog Devices Inc. LT1397 series offers active product status with LT® series heritage. Considerations include:

Slew rate of 800V/µs, approximately 47% below the original specification
-3dB bandwidth of 400 MHz, below the original 550 MHz
Operating temperature range limited to 0°C to 70°C, narrower than the original -40°C to 85°C
Superior output current per channel of 80 mA
ROHS3 compliance and MSL 1 rating
Lower supply current of 4.6 mA

This substitute is suitable for applications where the reduced bandwidth and slew rate are acceptable and the narrower temperature range does not conflict with system requirements.

Alternative Consideration: OPA4684IDR

Texas Instruments OPA4684IDR provides the highest performance specifications:

Exceptional gain bandwidth product of 1.9 GHz
Slew rate of 780V/µs, below the original specification
-3dB bandwidth of 95 MHz, significantly below the original 550 MHz
Lowest supply current of 1.7 mA across all substitutes
Highest output current per channel of 160 mA
Extended supply voltage range of 2.8V to 12V
ROHS3 compliance and MSL 2 rating

The OPA4684IDR is recommended only for applications where the extremely high gain bandwidth product is essential and the reduced -3dB bandwidth does not present a limitation.

Frequently Asked Questions (FAQ)

Q1: Can the AD8004ARZ-14 directly replace the CLC4601ISO14X without PCB modifications?

A: Yes. Both devices share identical 14-SOIC package dimensions (0.154" width, 3.90mm), surface mount configuration, and pin-compatible current feedback amplifier topology. No PCB layout changes are required. The AD8004ARZ-14 operates within the same supply voltage range (4V to 12V encompasses the original 8V to 12V requirement) and temperature range (-40°C to 85°C).

Q2: What is the primary difference between AD8004ARZ-14 and AD8004ARZ-14-REEL7?

A: Both variants contain identical die and electrical specifications. The difference is packaging format: AD8004ARZ-14 is supplied in tube packaging, while AD8004ARZ-14-REEL7 is supplied in cut tape with Digi-Reel format. The reel variant is optimized for automated pick-and-place assembly in high-volume manufacturing. Select based on your production equipment and volume requirements.

Q3: Why does the LT1397CS#PBF have a narrower operating temperature range (0°C to 70°C) compared to the original (-40°C to 85°C)?

A: The LT1397 is specified for a narrower temperature range due to its design and characterization parameters. If your application requires operation below 0°C or above 70°C, the LT1397 is not suitable. In such cases, select AD8004ARZ-14, LMH6722 variants, or OPA4684IDR, all of which support the full -40°C to 85°C range.

Q4: The OPA4684IDR has a much lower -3dB bandwidth (95 MHz) than the original (550 MHz). When is this acceptable?

A: The OPA4684IDR's lower -3dB bandwidth makes it unsuitable for applications requiring the full 550 MHz bandwidth of the original part. However, its exceptional 1.9 GHz gain bandwidth product and 160 mA output current per channel make it valuable for specific high-current, lower-bandwidth applications. Verify your circuit's actual bandwidth requirement before selecting this substitute.

Q5: What does MSL (Moisture Sensitivity Level) mean, and why does it matter?

A: MSL indicates how sensitive a component is to moisture absorption during storage. MSL 1 (unlimited shelf life) means the part can be stored indefinitely without special moisture control. MSL 2 (1 year) requires controlled storage conditions and must be used within one year of the manufacturing date. The AD8004ARZ-14 (MSL 1) offers superior storage flexibility compared to the CLC4601ISO14X (MSL 2).

Q6: Are all substitute parts RoHS3 compliant?

A: No. AD8004ARZ-14, LT1397CS#PBF, LT1397CS#TRPBF, and OPA4684IDR are explicitly ROHS3 compliant. The LMH6722MA/NOPB and LMH6722MAX/NOPB do not list RoHS status in the provided specifications. If RoHS3 compliance is a regulatory requirement for your application, confirm with the manufacturer or select from the explicitly compliant options.

Q7: Which substitute offers the best power efficiency?

A: The OPA4684IDR consumes only 1.7 mA total supply current, the lowest among all substitutes. The LMH6722 series follows with 5.6 mA. If power consumption is critical, these options are preferred. However, verify that their bandwidth and slew rate specifications align with your application requirements.

Q8: Can I use the LMH6722 in a single-supply configuration matching the original 8V to 12V range?

A: Yes. The LMH6722MA/NOPB and LMH6722MAX/NOPB support single supply operation from 8V to 12.5V, which encompasses the original part's 8V to 12V range. They also support dual supply operation (±4V to ±6.25V) for applications requiring bipolar supplies. Select based on your power supply architecture.

Q9: What is the significance of the "Active" product status for substitute parts?

A: Active status indicates the manufacturer continues production, maintains design support, and commits to long-term availability. This contrasts with the CLC4601ISO14X's obsolete status, which means no new production and limited remaining inventory. Selecting active substitutes ensures design continuity and reduces the risk of future component unavailability.

Q10: If my application requires the exact 550 MHz bandwidth of the original part, which substitute is most suitable?

A: None of the provided substitutes exactly match the 550 MHz -3dB bandwidth. The AD8004ARZ-14 offers 250 MHz, LMH6722 variants offer 400 MHz, LT1397 offers 400 MHz, and OPA4684IDR offers only 95 MHz. If 550 MHz bandwidth is mandatory, evaluate whether the application can tolerate the reduced bandwidth of the closest substitute (LMH6722 or LT1397 at 400 MHz), or consult with the manufacturers for alternative high-bandwidth current feedback amplifiers not listed in this reference.

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