MAX306CWI+ Equivalent & Substitute Parts

Part Overview

The MAX306CWI+ is a 16:1 analog multiplexer/demultiplexer interface IC manufactured by Analog Devices Inc./Maxim Integrated. This single-circuit switch device features 100Ohm on-state resistance and operates across a wide supply voltage range (5V to 30V single supply, or ±4.5V to ±20V dual supply). The device is housed in a 28-SOIC surface mount package and maintains Active product status with full RoHS3 compliance.

Equivalent and substitute parts are identified when design requirements permit variations in on-state resistance, supply voltage ranges, operating temperature specifications, or packaging formats while maintaining the core 16:1 multiplexer functionality and 28-SOIC form factor.

Key Parameters

Parameter	MAX306CWI+
Multiplexer/Demultiplexer Circuit	16:1
Number of Circuits	1
On-State Resistance (Max)	100Ohm
Channel-to-Channel Matching (ΔRon)	1.5Ohm
Voltage - Supply, Single (V+)	5V ~ 30V
Voltage - Supply, Dual (V±)	±4.5V ~ 20V
Switch Time (Ton, Toff) (Max)	200ns, 150ns
Charge Injection	2pC
Channel Capacitance (CS(off), CD(off))	8pF, 130pF
Current - Leakage (IS(off)) (Max)	500pA
Crosstalk	-92dB @ 100kHz
Operating Temperature	0°C ~ 70°C (TA)
Package / Case	28-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MAX306CWI+ is determined by the following critical parameters:

Multiplexer Configuration: All substitutes must maintain 16:1 multiplexer/demultiplexer functionality with a single circuit
Package Format: All substitutes must use 28-SOIC surface mount packaging (0.295", 7.50mm Width)
On-State Resistance: Substitutes may vary from 100Ohm to 1.5kOhm depending on application requirements
Supply Voltage Compatibility: Substitutes must support either single supply (5V minimum) or dual supply (±5V minimum) operation
Switch Timing: Substitutes must meet or exceed switching speed requirements (Ton/Toff specifications)
Operating Temperature Range: Substitutes may have extended or narrower temperature ranges
Compliance Standards: All substitutes maintain RoHS3 compliance and EAR99 export classification

The identified substitutes are grouped by manufacturer and on-state resistance characteristics, allowing selection based on specific circuit requirements and supply voltage constraints.

Parameter Comparison

Parameter	MAX306CWI+	DG406DYZ	DG406DYZ-T	DG506BEW-T1-GE3	MPC506AU	MPC506AU/1K
Manufacturer	Analog Devices Inc./Maxim Integrated	Renesas Electronics Corporation	Renesas Electronics Corporation	Vishay Siliconix	Texas Instruments	Texas Instruments
Multiplexer/Demultiplexer Circuit	16:1	16:1	16:1	16:1	16:1	16:1
On-State Resistance (Max)	100Ohm	100Ohm	100Ohm	300Ohm	1.5kOhm	1.5kOhm
Channel-to-Channel Matching (ΔRon)	1.5Ohm	5Ohm	5Ohm	10Ohm	—	—
Voltage - Supply, Single (V+)	5V ~ 30V	5V ~ 34V	5V ~ 34V	12V ~ 44V	—	—
Voltage - Supply, Dual (V±)	±4.5V ~ 20V	±5V ~ 20V	±5V ~ 20V	±5V ~ 20V	±5V ~ 22V	±5V ~ 22V
Switch Time (Ton, Toff) (Max)	200ns, 150ns	200ns, 150ns	200ns, 150ns	250ns, 200ns	200ns, 250ns (Typ)	200ns, 250ns (Typ)
Charge Injection	2pC	40pC	40pC	1pC	—	—
Channel Capacitance (CS(off), CD(off))	8pF, 130pF	8pF, 160pF	8pF, 160pF	3pF, 13pF	5pF, 50pF	5pF, 50pF
Current - Leakage (IS(off)) (Max)	500pA	500pA	500pA	1nA	500pA (Typ)	500pA (Typ)
Operating Temperature	0°C ~ 70°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 125°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Package / Case	28-SOIC (0.295", 7.50mm Width)	28-SOIC (0.295", 7.50mm Width)	28-SOIC (0.295", 7.50mm Width)	28-SOIC (0.295", 7.50mm Width)	28-SOIC (0.295", 7.50mm Width)	28-SOIC (0.295", 7.50mm Width)
Packaging Format	Tube	Tube	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)	Tube	Tape & Reel (TR)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	3 (168 Hours)	3 (168 Hours)	1 (Unlimited)	2 (1 Year)	2 (1 Year)
Product Status	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Direct Equivalents (100Ohm On-State Resistance)

DG406DYZ and DG406DYZ-T from Renesas Electronics Corporation are functionally equivalent to the MAX306CWI+ with identical on-state resistance (100Ohm) and switching characteristics. Both devices support the same supply voltage ranges and maintain 16:1 multiplexer configuration. The primary differences are extended operating temperature range (-40°C to 85°C versus 0°C to 70°C) and higher channel-to-channel matching tolerance (5Ohm versus 1.5Ohm). DG406DYZ-T offers extended tape and reel packaging availability. Both maintain RoHS3 compliance and Active product status.

Higher Resistance Alternatives (300Ohm and 1.5kOhm)

DG506BEW-T1-GE3 (Vishay Siliconix, 300Ohm) and MPC506AU/MPC506AU/1K (Texas Instruments, 1.5kOhm) are suitable substitutes when circuit design permits increased on-state resistance. These alternatives offer extended operating temperature ranges and improved charge injection characteristics. DG506BEW-T1-GE3 supports higher single supply voltages (12V to 44V) and features superior bandwidth performance (114MHz). MPC506AU variants support dual supply operation (±5V to ±22V) with lower channel capacitance. All alternatives maintain RoHS3 compliance and Active product status.

Packaging and Availability Considerations

Tube packaging (MAX306CWI+, DG406DYZ, MPC506AU) is suitable for lower-volume applications. Cut Tape and Digi-Reel formats (DG406DYZ-T) and Tape & Reel formats (DG506BEW-T1-GE3, MPC506AU/1K) support high-volume manufacturing and automated assembly processes. Moisture sensitivity levels range from MSL 1 (Unlimited) to MSL 3 (168 Hours), affecting storage and handling requirements.

Frequently Asked Questions (FAQ)

Q: Can DG406DYZ replace MAX306CWI+ in all applications?

A: DG406DYZ is a functional equivalent with identical on-state resistance (100Ohm) and switching times. It supports the same 16:1 multiplexer configuration and 28-SOIC package. The extended operating temperature range (-40°C to 85°C) and higher channel-to-channel matching tolerance (5Ohm versus 1.5Ohm) must be evaluated against specific circuit requirements. Both devices maintain RoHS3 compliance and Active product status.

Q: When should I use DG506BEW-T1-GE3 instead of MAX306CWI+?

A: DG506BEW-T1-GE3 is appropriate when circuit design permits 300Ohm on-state resistance and requires extended operating temperature range (-40°C to 125°C). This device offers superior charge injection (1pC versus 2pC) and lower channel capacitance. Higher single supply voltage support (12V to 44V) and 114MHz bandwidth performance make it suitable for high-frequency applications. All devices maintain 28-SOIC packaging and RoHS3 compliance.

Q: What are the limitations of MPC506AU compared to MAX306CWI+?

A: MPC506AU features significantly higher on-state resistance (1.5kOhm versus 100Ohm) and does not support single supply voltage operation. It is limited to dual supply operation (±5V to ±22V). Channel-to-channel matching and charge injection specifications are not provided. This device is suitable only for applications where high on-state resistance is acceptable and dual supply operation is available.

Q: How do packaging formats affect component selection?

A: Tube packaging (MAX306CWI+, DG406DYZ, MPC506AU) is standard for lower-volume orders and manual assembly. Cut Tape and Digi-Reel formats (DG406DYZ-T) and Tape & Reel formats (DG506BEW-T1-GE3, MPC506AU/1K) are required for automated pick-and-place assembly and high-volume production. Moisture sensitivity levels (MSL 1 to MSL 3) affect storage duration and handling procedures.

Q: Are all substitutes RoHS3 compliant?

A: All identified substitutes (DG406DYZ, DG406DYZ-T, DG506BEW-T1-GE3, MPC506AU, MPC506AU/1K) maintain RoHS3 compliance and EAR99 export classification, matching the MAX306CWI+ compliance profile.

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