MAX4525CUB Equivalent & Substitute Parts

Part Overview

The MAX4525CUB is a single-circuit DPDT (Double Pole Double Throw) analog switch IC manufactured by Analog Devices Inc./Maxim Integrated. This component functions as a 2:1 multiplexer/demultiplexer with 150Ohm on-state resistance, designed for signal routing and switching applications in analog circuits. The MAX4525CUB is classified as obsolete, making identification of compatible substitute parts essential for ongoing production support, design updates, and inventory management.

Key Parameters

Parameter	Value
Switch Circuit Type	DPDT
Multiplexer/Demultiplexer Configuration	2:1
Number of Circuits	1
On-State Resistance (Max)	150Ohm
Channel-to-Channel Matching (ΔRon)	2Ohm
Supply Voltage Range (Single)	2V ~ 12V
Switch Time (Ton/Toff Max)	150ns / 120ns
Charge Injection	0.8pC
Channel Capacitance (CS(off)/CD(off))	4pF / 6pF
Leakage Current (IS(off) Max)	1nA
Crosstalk	-74dB @ 1MHz
Operating Temperature Range	0°C ~ 70°C
Mounting Type	Surface Mount
Package / Case	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Supplier Device Package	10-uMAX/uSOP

Substitute Part Grouping Explanation

Substitution of the MAX4525CUB is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must maintain identical specifications for:

Switch circuit topology (DPDT)
Multiplexer configuration (2:1)
On-state resistance (150Ohm maximum)
Channel-to-channel matching (2Ohm)
Supply voltage range (2V ~ 12V single supply)
Switch timing characteristics (150ns Ton, 120ns Toff)
Charge injection (0.8pC)
Channel capacitance values (4pF, 6pF)
Leakage current specification (1nA maximum)
Crosstalk performance (-74dB @ 1MHz)
Operating temperature range (0°C ~ 70°C)
Physical package format (10-TFSOP/10-MSOP, 0.118" width, 3.00mm)

Only parts meeting all these criteria are considered direct functional equivalents.

Parameter Comparison

Parameter	MAX4525CUB (Main Part)	MAX4525CUB+ (Substitute)
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Switch Circuit	DPDT	DPDT
Multiplexer Configuration	2:1	2:1
Number of Circuits	1	1
On-State Resistance (Max)	150Ohm	150Ohm
Channel-to-Channel Matching (ΔRon)	2Ohm	2Ohm
Supply Voltage (Single)	2V ~ 12V	2V ~ 12V
Switch Time (Ton/Toff Max)	150ns / 120ns	150ns / 120ns
Charge Injection	0.8pC	0.8pC
Channel Capacitance (CS(off)/CD(off))	4pF / 6pF	4pF / 6pF
Leakage Current (IS(off) Max)	1nA	1nA
Crosstalk	-74dB @ 1MHz	-74dB @ 1MHz
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C
Mounting Type	Surface Mount	Surface Mount
Package / Case	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Supplier Device Package	10-uMAX/uSOP	10-uMAX/uSOP
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Packaging Type	Not specified	Tube

Engineering Selection Recommendations

The MAX4525CUB+ is the direct functional equivalent of the MAX4525CUB. Both parts are manufactured by Analog Devices Inc./Maxim Integrated and share identical electrical and mechanical specifications across all critical parameters.

The primary distinction between these parts is product lifecycle status and regulatory compliance. The MAX4525CUB is classified as obsolete, while the MAX4525CUB+ maintains active product status. The MAX4525CUB+ additionally carries ROHS3 compliance certification, whereas the original MAX4525CUB is RoHS non-compliant. Both parts maintain REACH Unaffected status and EAR99 export classification.

For new designs, production continuity, or inventory replenishment, the MAX4525CUB+ is the appropriate selection due to its active status and enhanced regulatory compliance profile. Electrical and mechanical interchangeability is complete, with no design modifications required.

Frequently Asked Questions (FAQ)

Q: Can MAX4525CUB+ be used as a direct replacement for MAX4525CUB in existing designs?

A: Yes. The MAX4525CUB+ is electrically and mechanically identical to the MAX4525CUB. All functional parameters, including on-state resistance, switching speed, charge injection, and package format, are equivalent. No circuit modifications are required.

Q: What is the difference between MAX4525CUB and MAX4525CUB+?

A: The primary differences are product status and compliance certification. The MAX4525CUB is obsolete and RoHS non-compliant. The MAX4525CUB+ is an active product with ROHS3 compliance. Electrical specifications and physical packaging are identical.

Q: Are there any package or pinout differences between these parts?

A: No. Both parts use the 10-TFSOP/10-MSOP package format with 0.118" width and 3.00mm height. Pinout and mechanical dimensions are identical.

Q: Why should I transition from MAX4525CUB to MAX4525CUB+?

A: The MAX4525CUB is obsolete, making long-term availability uncertain. The MAX4525CUB+ is actively manufactured and stocked, ensuring supply chain continuity. Additionally, ROHS3 compliance may be required for applications subject to environmental regulations.

Q: What is the supply voltage range for these switches?

A: Both parts operate with a single supply voltage range of 2V to 12V. Dual supply operation is not supported.

Q: Are these parts suitable for audio or precision analog signal routing?

A: Yes. The 150Ohm on-state resistance, 2Ohm channel-to-channel matching, 0.8pC charge injection, and -74dB crosstalk at 1MHz make these parts suitable for audio and precision analog multiplexing applications within the specified operating temperature range of 0°C to 70°C.

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