MAX4632ESE Equivalent & Substitute Parts

Part Overview

The MAX4632ESE is a dual SPDT (Single Pole Double Throw) analog switch IC manufactured by Analog Devices Inc./Maxim Integrated, designed for signal routing and multiplexing applications in interface circuits. This device features 2 independent 2:1 switch circuits with 85Ω on-state resistance in a 16-SOIC surface mount package. The MAX4632ESE is classified as obsolete, making identification of functionally equivalent alternatives necessary for new designs and ongoing production support.

Substiute Parts

MAX4632ESE

Analog Devices Inc./Maxim IntegratedIn Stock: 85670MAX4632ESE Datasheet

Current PartRFQ

MAX4632ESE+

Analog Devices Inc./Maxim IntegratedIn Stock: 708MAX4632ESE+ Datasheet

DirectRFQ

DG403BDY-E3

Vishay SiliconixIn Stock: 2011DG403BDY-E3 Datasheet

MFR RecommendedRFQ

DG403BDY-T1-E3

Vishay SiliconixIn Stock: 7894DG403BDY-T1-E3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MAX4632ESE is determined by the following critical parameters:

Primary Substitution Criteria:

• Package compatibility: 16-SOIC form factor (0.154", 3.90mm width)
• Surface mount mounting type
• Operating temperature range: -40°C ~ 85°C
• Supply voltage compatibility with application requirements
• On-state resistance and leakage current specifications

Substitute Categories:

Direct Equivalent (Same Electrical Function): MAX4632ESE+ is a direct equivalent offering identical electrical specifications to the MAX4632ESE. The primary distinction is product status (Active vs. Obsolete) and packaging format (Tube vs. standard packaging). This part maintains the same 2-circuit SPDT 2:1 configuration with 85Ω on-state resistance and identical switching characteristics.

Functional Alternative (Different Circuit Configuration): DG403BDY-E3 and DG403BDY-T1-E3 (Vishay Siliconix) represent functional alternatives with different internal architectures. These devices feature 4 independent SPST (Single Pole Single Throw) 1:1 switch circuits with 45Ω on-state resistance. While the circuit topology differs (SPST vs. SPDT, 1:1 vs. 2:1), both devices share the same 16-SOIC package, surface mount configuration, and compatible supply voltage ranges. The DG403 series offers lower on-state resistance (45Ω vs. 85Ω) and improved crosstalk performance (-94.8dB vs. -66dB @ 1MHz), but requires different application circuit design due to the SPST configuration.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Function): MAX4632ESE+ is the recommended substitute when maintaining the exact 2-circuit SPDT 2:1 configuration is required. This part is active in production, offers ROHS3 compliance (addressing environmental regulations), and provides identical electrical performance. The transition from MAX4632ESE to MAX4632ESE+ requires no circuit redesign and maintains full functional compatibility.

For Alternative Designs (Different Circuit Architecture): DG403BDY-E3 and DG403BDY-T1-E3 are suitable alternatives when circuit topology can be adapted to accommodate 4 independent SPST 1:1 switch circuits. These devices offer performance advantages including lower on-state resistance (45Ω vs. 85Ω) and superior crosstalk isolation (-94.8dB vs. -66dB @ 1MHz). Both variants are ROHS3 compliant and active in production. Selection between DG403BDY-E3 (Tube packaging) and DG403BDY-T1-E3 (Tape & Reel packaging) depends on procurement and assembly requirements.

Compliance Considerations: All substitute parts (MAX4632ESE+, DG403BDY-E3, DG403BDY-T1-E3) are ROHS3 compliant, addressing regulatory requirements that the original MAX4632ESE does not meet. All parts maintain REACH Unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can MAX4632ESE+ be used as a direct drop-in replacement for MAX4632ESE? A: Yes. MAX4632ESE+ provides identical electrical specifications and 16-SOIC package compatibility. No circuit modifications are required. The primary differences are product status (Active vs. Obsolete) and ROHS3 compliance.

Q: What are the key differences between MAX4632ESE and DG403BDY series? A: The MAX4632ESE provides 2 SPDT 2:1 switch circuits with 85Ω on-state resistance. The DG403BDY series provides 4 SPST 1:1 switch circuits with 45Ω on-state resistance. Circuit topology differs significantly, requiring application redesign. Both share 16-SOIC packaging and compatible operating temperature ranges.

Q: Are DG403BDY-E3 and DG403BDY-T1-E3 electrically identical? A: Yes. Both devices are electrically identical. The distinction is packaging format: DG403BDY-E3 uses Tube packaging, while DG403BDY-T1-E3 uses Tape & Reel (TR) packaging. Selection depends on procurement volume and assembly line requirements.

Q: What supply voltage ranges are compatible across all substitute options? A: All parts support single supply operation from 13V to 36V (DG403 series) or 9V to 36V (MAX4632 series). For dual supply operation, MAX4632 series supports ±4.5V ~ 18V, while DG403 series supports ±7V ~ 22V. Verify application requirements against specific part specifications.

Q: Do all substitute parts meet RoHS compliance? A: MAX4632ESE is RoHS non-compliant. MAX4632ESE+, DG403BDY-E3, and DG403BDY-T1-E3 are all ROHS3 compliant. For applications requiring RoHS compliance, use MAX4632ESE+, DG403BDY-E3, or DG403BDY-T1-E3.

Q: What is the significance of the lower on-state resistance in DG403 devices? A: DG403 series devices feature 45Ω on-state resistance compared to 85Ω in MAX4632 series. Lower on-state resistance reduces signal attenuation and power dissipation in switching applications. This advantage applies only when circuit topology can accommodate the SPST 1:1 configuration.

Q: Are there inventory considerations for these substitute parts? A: MAX4632ESE has 85,650 pcs in stock (obsolete status). MAX4632ESE+ has 683 pcs available. DG403BDY-E3 has 1,959 pcs available. DG403BDY-T1-E3 has 7,800 pcs available. Inventory levels should be confirmed with suppliers for production planning.