CLC2605ISO8X Equivalent & Substitute Parts

Part Overview

The CLC2605ISO8X is a Current Feedback Amplifier (CFA) with 2 circuits in an 8-SOIC package, manufactured by MaxLinear, Inc. This device is classified as Obsolete and no longer in active production. The part delivers a slew rate of 2500V/µs and gain bandwidth product of 1.5 GHz, designed for high-speed signal conditioning applications requiring dual-channel amplification in compact surface-mount packaging.

Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary to maintain design continuity and ensure long-term component availability for new production runs and system upgrades.

Key Parameters

Parameter	CLC2605ISO8X	Unit
Amplifier Type	Current Feedback	—
Number of Circuits	2	—
Slew Rate	2500	V/µs
Gain Bandwidth Product	1.5	GHz
-3dB Bandwidth	1.2	GHz
Current - Input Bias	6	µA
Voltage - Input Offset	10	mV
Current - Supply (x2 Channels)	12	mA
Current - Output / Channel	280	mA
Voltage - Supply Span (Min)	4.5	V
Voltage - Supply Span (Max)	12	V
Operating Temperature	-40 to 85	°C
Mounting Type	Surface Mount	—
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the CLC2605ISO8X is determined by the following critical parameters:

Amplifier Type: Current Feedback topology must be maintained
Number of Circuits: Dual-channel (2 circuits) configuration required
Package / Case: 8-SOIC form factor with 0.154" (3.90mm) width for PCB compatibility
Mounting Type: Surface Mount technology
Operating Temperature Range: Minimum -40°C to 85°C coverage for industrial applications
Slew Rate and Bandwidth: Performance metrics that define signal fidelity in high-speed applications
Supply Voltage Range: Compatibility with 4.5V to 12V dual supply systems
Output Current Capability: Minimum 80 mA per channel for load driving requirements

The substitute parts listed below meet these core substitution criteria while offering active product status and improved compliance certifications.

Parameter Comparison

Parameter	CLC2605ISO8X	LT1229CS8#PBF	LT1396CS8#PBF	MAX4225ESA+	MAX4227ESA+T	Unit
Amplifier Type	Current Feedback	Current Feedback	Current Feedback	Current Feedback	Current Feedback	—
Number of Circuits	2	2	2	2	2	—
Slew Rate	2500	700	800	1100	1700	V/µs
Gain Bandwidth Product	1.5	100	—	—	—	GHz
-3dB Bandwidth	1.2	100	400	1.0	600	MHz
Current - Input Bias	6	10	10	2	2	µA
Voltage - Input Offset	10	3	1	0.5	0.5	mV
Current - Supply (x2 Channels)	12	6	4.6	6	6	mA
Current - Output / Channel	280	125	80	80	80	mA
Voltage - Supply Span (Min)	4.5	4	4	5.7	5.7	V
Voltage - Supply Span (Max)	12	30	12	11	11	V
Operating Temperature	-40 to 85	0 to 70	0 to 70	-40 to 85	-40 to 85	°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	—
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	—
Product Status	Obsolete	Active	Active	Active	Active	—
RoHS Status	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	—

Engineering Selection Recommendations

Primary Substitute: MAX4225ESA+

The MAX4225ESA+ is the closest functional equivalent to the CLC2605ISO8X. It maintains the required 8-SOIC package, dual-channel current feedback topology, and extended operating temperature range (-40°C to 85°C). The -3dB bandwidth of 1.0 GHz closely approaches the original 1.2 GHz specification. This part is manufactured by Analog Devices Inc./Maxim Integrated and carries Active product status with ROHS3 compliance and REACH Unaffected certification, ensuring long-term availability and regulatory compliance.

Secondary Substitute: MAX4227ESA+T

The MAX4227ESA+T offers enhanced performance with a slew rate of 1700V/µs and -3dB bandwidth of 600 MHz. It maintains identical supply voltage range (5.7V to 11V) and operating temperature coverage (-40°C to 85°C). This part is suitable for applications requiring higher slew rate performance while maintaining the same package footprint and dual-channel configuration. Active product status and ROHS3 compliance are confirmed.

Alternative Substitute: LT1396CS8#PBF

The LT1396CS8#PBF, manufactured by Analog Devices Inc., provides a lower-cost alternative with -3dB bandwidth of 400 MHz and slew rate of 800V/µs. This part is appropriate for applications where the full bandwidth of the CLC2605ISO8X is not required. Operating temperature range is limited to 0°C to 70°C, which may restrict use in extended industrial temperature environments. Active product status and ROHS3 compliance are confirmed.

Not Recommended: LT1229CS8#PBF

The LT1229CS8#PBF exhibits significantly reduced bandwidth (100 MHz) and slew rate (700V/µs) compared to the CLC2605ISO8X. Additionally, the operating temperature range is limited to 0°C to 70°C, which does not meet the -40°C to 85°C requirement of the original part. This part is suitable only for low-frequency applications and is not recommended as a direct substitute.

All substitute parts listed carry Active product status, ensuring continued manufacturing and supply chain support. ROHS3 compliance and REACH Unaffected certifications are standard across all recommended alternatives.

Frequently Asked Questions (FAQ)

Q: Can the LT1229CS8#PBF be used as a direct replacement for the CLC2605ISO8X?

A: No. While the LT1229CS8#PBF shares the 8-SOIC package and dual-channel current feedback topology, it does not meet the bandwidth and temperature requirements of the original part. The -3dB bandwidth is limited to 100 MHz versus 1.2 GHz for the CLC2605ISO8X, and the operating temperature range (0°C to 70°C) does not cover the full -40°C to 85°C specification. Use of this part is restricted to applications with reduced bandwidth requirements and standard industrial temperature ranges.

Q: What is the primary advantage of the MAX4225ESA+ over the CLC2605ISO8X?

A: The MAX4225ESA+ is an Active product with confirmed long-term availability, whereas the CLC2605ISO8X is Obsolete. Both parts deliver comparable performance with -3dB bandwidth of 1.0 GHz versus 1.2 GHz, and both support the full -40°C to 85°C operating temperature range. The MAX4225ESA+ carries ROHS3 compliance and REACH Unaffected certification, meeting current regulatory requirements.

Q: Are all substitute parts pin-compatible with the CLC2605ISO8X?

A: All substitute parts listed use the 8-SOIC package with 0.154" (3.90mm) width. Pin compatibility must be verified against the specific pinout diagram for each part number, as current feedback amplifier topologies may have different internal circuit configurations. Consult the device datasheets for detailed pinout information before PCB layout or rework operations.

Q: Which substitute part offers the highest slew rate?

A: The MAX4227ESA+T delivers the highest slew rate at 1700V/µs, compared to 2500V/µs for the CLC2605ISO8X. This represents a 32% reduction in slew rate performance. The MAX4225ESA+ provides 1100V/µs slew rate, and the LT1396CS8#PBF provides 800V/µs. Selection should be based on the specific signal conditioning requirements of the application.

Q: What is the supply voltage compatibility range for substitute parts?

A: The CLC2605ISO8X operates from 4.5V to 12V. The MAX4225ESA+ and MAX4227ESA+T operate from 5.7V to 11V, which is a subset of the original range. The LT1396CS8#PBF operates from 4V to 12V, providing broader compatibility. The LT1229CS8#PBF offers the widest range at 4V to 30V. Verify that the selected substitute part's supply voltage range is compatible with the system power distribution design.

Q: Are all substitute parts available in Tube packaging?

A: The LT1229CS8#PBF, LT1396CS8#PBF, and MAX4225ESA+ are available in Tube packaging. The MAX4227ESA+T packaging specification is not provided in the available data. Confirm packaging availability with the component supplier before finalizing procurement specifications.

Q: What is the moisture sensitivity level (MSL) for all parts?

A: All parts, including the CLC2605ISO8X and all substitute parts, carry MSL 1 (Unlimited) classification. This indicates no moisture sensitivity restrictions and no special storage or handling requirements beyond standard component handling practices.

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