MAX4551CPE Equivalent & Substitute Parts

Part Overview

The MAX4551CPE is a 4-circuit SPST-NC (Single Pole Single Throw - Normally Closed) analog switch IC manufactured by Analog Devices Inc./Maxim Integrated. This component features a 1:1 multiplexer/demultiplexer configuration with 120Ohm on-state resistance and is housed in a 16-DIP package. The MAX4551CPE is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

MAX4551CPE

Analog Devices Inc./Maxim IntegratedIn Stock: 847MAX4551CPE Datasheet

Current PartRFQ

ADG211AKNZ

Analog Devices Inc.In Stock: 4704ADG211AKNZ Datasheet

MFR RecommendedRFQ

ALD4211PCL

Advanced Linear Devices Inc.In Stock: 939ALD4211PCL Datasheet

MFR RecommendedRFQ

DG271BCJ-E3

Vishay SiliconixIn Stock: 1198DG271BCJ-E3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX4551CPE is determined by strict adherence to the following core parameters:

• Switch Circuit Configuration: SPST - NC (required match)
• Number of Circuits: 4 (required match)
• Multiplexer/Demultiplexer Ratio: 1:1 (required match)
• Package / Case: 16-DIP (0.300", 7.62mm) (required match)
• Mounting Type: Through Hole (required match)

All three substitute parts listed below satisfy these mandatory criteria. Variations in on-state resistance, supply voltage ranges, switching speed, and leakage current are permissible within the context of circuit design flexibility, provided the application requirements accommodate these differences.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are active products with ROHS3 compliance, addressing the obsolescence and regulatory limitations of the MAX4551CPE.

ADG211AKNZ (Analog Devices Inc.) maintains manufacturer continuity with the original MAX4551CPE. This part operates at ±15V dual supply and exhibits slower switching times (600ns, 450ns) compared to the original. The higher leakage current (5nA) and increased charge injection (20pC) may impact precision analog applications. This option is suitable for systems where supply voltage can be adapted to ±15V and switching speed is not performance-critical.

ALD4211PCL (Advanced Linear Devices Inc.) provides the closest on-state resistance match (135Ohm vs. 120Ohm) and demonstrates superior charge injection performance (0.2pC). Operating temperature range extends to -40°C ~ 85°C, and leakage current is significantly lower (100pA). Supply voltage compatibility spans 3V ~ 12V (single) and ±1.5V ~ 6V (dual), offering flexibility for low-voltage applications. This part is optimal for precision signal switching and low-leakage requirements.

DG271BCJ-E3 (Vishay Siliconix) features the lowest on-state resistance (50Ohm) and fastest switching times (65ns, 65ns), with superior crosstalk performance (-100dB @ 100kHz). This part requires ±15V dual supply operation. Selection of this part is appropriate for high-speed switching applications and low-impedance signal paths where the reduced on-state resistance provides circuit performance benefits.

Frequently Asked Questions (FAQ)

Q: Can I directly replace MAX4551CPE with any of these substitute parts?

A: Direct replacement is possible only if your circuit design accommodates the electrical parameter variations listed in the Parameter Comparison table. The mandatory compatibility criteria are identical switch circuit configuration (SPST - NC), circuit count (4), multiplexer ratio (1:1), and 16-DIP package. Verify that your application tolerates differences in supply voltage requirements, switching speed, and leakage current before implementation.

Q: What are the key differences between the three substitute options?

A: ADG211AKNZ maintains Analog Devices manufacturer lineage but requires ±15V supply and exhibits slower switching. ALD4211PCL offers the best low-leakage performance and flexible supply voltage options. DG271BCJ-E3 provides the fastest switching speed and lowest on-state resistance but mandates ±15V dual supply operation.

Q: Are all substitute parts RoHS compliant?

A: Yes. All three substitute parts are ROHS3 compliant, whereas the original MAX4551CPE is RoHS non-compliant. This compliance improvement may be required for new designs or regulatory adherence.

Q: Does package compatibility guarantee electrical compatibility?

A: No. While all parts share the 16-DIP (0.300", 7.62mm) through-hole package, electrical parameters such as supply voltage, switching speed, and leakage current differ. Circuit design must accommodate these variations. Pin-level functional equivalence is confirmed across all parts.

Q: Which substitute part should I select for a precision analog application?

A: ALD4211PCL is recommended for precision applications due to its exceptionally low charge injection (0.2pC), minimal leakage current (100pA), and crosstalk performance matching the original (-90dB @ 100kHz). Verify that the 3V ~ 12V single supply and ±1.5V ~ 6V dual supply voltage ranges align with your system design.

Q: Can I use DG271BCJ-E3 in a system designed for ±6V dual supply?

A: No. DG271BCJ-E3 requires ±15V dual supply operation. Using this part in a ±6V system will result in improper device operation. Select ADG211AKNZ or ALD4211PCL if your system operates at lower supply voltages.