MAX4522ESE Equivalent & Substitute Parts

Part Overview

The MAX4522ESE is a 4-circuit SPST-NO analog switch IC manufactured by Analog Devices Inc./Maxim Integrated, housed in a 16-SOIC surface mount package. This component is classified as obsolete, with 3900 units currently in stock. The MAX4522ESE operates as a 1:1 multiplexer/demultiplexer with 100Ohm on-state resistance and supports dual supply voltages (±2V to ±6V) or single supply (2V to 12V). Due to its obsolete status, identifying functionally equivalent active alternatives is essential for new designs and long-term supply chain continuity.

Key Parameters

Parameter	MAX4522ESE
Switch Circuit	SPST - NO
Number of Circuits	4
Multiplexer/Demultiplexer Circuit	1:1
On-State Resistance (Max)	100Ohm
Channel-to-Channel Matching (ΔRon)	1Ohm
Voltage - Supply, Single (V+)	2V ~ 12V
Voltage - Supply, Dual (V±)	±2V ~ 6V
Switch Time (Ton, Toff) (Max)	80ns, 30ns
Charge Injection	1pC
Channel Capacitance (CS(off), CD(off))	2pF, 2pF
Current - Leakage (IS(off)) (Max)	1nA
Crosstalk	-90dB @ 100kHz
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	16-SOIC (0.154", 3.90mm Width)
RoHS Status	RoHS non-compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the MAX4522ESE is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Switch topology: SPST - NO (Single Pole Single Throw - Normally Open)
Circuit count: 4 circuits
Multiplexer configuration: 1:1
Package type: 16-SOIC surface mount
Operating temperature range: -40°C to 85°C minimum

Secondary Compatibility Parameters:

On-state resistance (Ron): Must support applications designed for 100Ohm or lower
Supply voltage compatibility: Dual (±2V to ±6V) or single (2V to 12V) supply operation
Switching speed: Ton/Toff specifications must meet or exceed 80ns/30ns
Leakage current: Must not exceed 1nA maximum specification
Channel capacitance: Must not exceed 2pF for both CS(off) and CD(off)

Substitute parts are grouped by on-state resistance value, as this parameter directly affects circuit performance in signal routing and analog switching applications. Parts with lower Ron values (24Ohm, 30Ohm, 35Ohm, 70Ohm) provide improved performance characteristics while maintaining functional compatibility with the 16-SOIC package footprint.

Parameter Comparison

Part Number	Manufacturer	Ron (Max)	ΔRon	V+ Supply	V± Supply	Ton/Toff (Max)	Charge Injection	CS(off)/CD(off)	IS(off) (Max)	Crosstalk	Temp Range	Packaging	RoHS Status	Product Status
MAX4522ESE	Analog Devices	100Ohm	1Ohm	2V ~ 12V	±2V ~ 6V	80ns, 30ns	1pC	2pF, 2pF	1nA	-90dB @ 100kHz	-40°C ~ 85°C	16-SOIC	Non-compliant	Obsolete
MAX4522ESE+	Analog Devices	100Ohm	1Ohm	2V ~ 12V	±2V ~ 6V	80ns, 30ns	1pC	2pF, 2pF	1nA	-90dB @ 100kHz	-40°C ~ 85°C	16-SOIC	ROHS3 Compliant	Active
ADG1312YRZ-REEL7	Analog Devices	200Ohm	5Ohm	12V	±15V	125ns, 50ns	2pC	5pF, 5pF	10nA	-90dB @ 1MHz	-40°C ~ 105°C	16-SOIC	ROHS3 Compliant	Active
ADG412BRZ	Analog Devices	35Ohm	—	12V	±15V	175ns, 145ns	5pC	9pF, 9pF	250pA	-85dB @ 1MHz	-40°C ~ 85°C	16-SOIC	ROHS3 Compliant	Active
ADG412BRZ-REEL	Analog Devices	35Ohm	—	12V	±15V	175ns, 145ns	5pC	9pF, 9pF	250pA	-85dB @ 1MHz	-40°C ~ 85°C	16-SOIC	ROHS3 Compliant	Active
ADG412BRZ-REEL7	Analog Devices	35Ohm	—	12V	±15V	175ns, 145ns	5pC	9pF, 9pF	250pA	-85dB @ 1MHz	-40°C ~ 85°C	16-SOIC	ROHS3 Compliant	Active
ADG432BRZ	Analog Devices	24Ohm	1.2Ohm	12V	±15V	90ns, 60ns	5pC	9pF, 9pF	250pA	-85dB @ 1MHz	-40°C ~ 85°C	16-SOIC	ROHS3 Compliant	Active
ADG432BRZ-REEL	Analog Devices	24Ohm	1.2Ohm	12V	±15V	90ns, 60ns	5pC	9pF, 9pF	250pA	-85dB @ 1MHz	-40°C ~ 85°C	16-SOIC	ROHS3 Compliant	Active
ADG442BRZ	Analog Devices	70Ohm	—	12V	±15V	110ns, 60ns	1pC	4pF, 4pF	500pA	-100dB @ 1MHz	-40°C ~ 85°C	16-SOIC	ROHS3 Compliant	Active
ADG442BRZ-REEL	Analog Devices	70Ohm	—	12V	±15V	110ns, 60ns	1pC	4pF, 4pF	500pA	-100dB @ 1MHz	-40°C ~ 85°C	16-SOIC	ROHS3 Compliant	Active
ADG512BRZ	Analog Devices	30Ohm (Typ)	—	3V ~ 5.5V	±4.5V ~ 5.5V	200ns, 120ns (Typ)	11pC	9pF, 9pF	100pA	-85dB @ 1MHz	-40°C ~ 85°C	16-SOIC	ROHS3 Compliant	Active

Engineering Selection Recommendations

Direct Replacement (Identical Electrical Specifications):

MAX4522ESE+ is the active production equivalent of the obsolete MAX4522ESE. Both parts share identical electrical parameters: 100Ohm on-state resistance, 1Ohm channel-to-channel matching, dual supply range (±2V to ±6V), and single supply range (2V to 12V). The primary distinction is product status and RoHS compliance. MAX4522ESE+ is ROHS3 compliant and actively manufactured, making it the preferred choice for new designs and production continuity.

Performance-Enhanced Alternatives (Lower On-State Resistance):

ADG432BRZ and ADG432BRZ-REEL offer superior performance with 24Ohm on-state resistance, representing a 76% reduction compared to the MAX4522ESE. These parts maintain the 16-SOIC package footprint and support ±15V dual supply operation. Both are ROHS3 compliant and active. Selection of ADG432 variants is appropriate when lower insertion loss and reduced power dissipation are design requirements, provided the application supports ±15V supply voltages.

ADG442BRZ and ADG442BRZ-REEL provide 70Ohm on-state resistance with improved crosstalk performance (-100dB @ 1MHz versus -90dB @ 100kHz). These parts are suitable for applications requiring enhanced signal isolation while maintaining moderate on-state resistance.

ADG412BRZ, ADG412BRZ-REEL, and ADG412BRZ-REEL7 deliver 35Ohm on-state resistance with ROHS3 compliance and active production status. These variants bridge the performance gap between the original MAX4522ESE and lower-resistance alternatives.

Extended Temperature Range Option:

ADG1312YRZ-REEL7 extends the operating temperature range to -40°C to 105°C, supporting applications requiring elevated temperature operation. This part features 200Ohm on-state resistance and ±15V supply capability. Selection is appropriate only when the extended temperature specification is a design requirement, as the higher Ron value increases insertion loss.

Supply Voltage Constraints:

ADG512BRZ operates on reduced supply voltages (3V to 5.5V single, ±4.5V to 5.5V dual) and is not suitable as a direct replacement for designs requiring the full 2V to 12V single supply range of the MAX4522ESE. This part is appropriate only for low-voltage applications.

All substitute parts maintain the 16-SOIC surface mount package, ensuring mechanical compatibility with existing PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can MAX4522ESE+ be used as a direct replacement for MAX4522ESE?

A: Yes. MAX4522ESE+ is electrically identical to MAX4522ESE, with identical on-state resistance (100Ohm), supply voltage ranges (2V to 12V single, ±2V to ±6V dual), and switching characteristics. The primary differences are product status (active versus obsolete) and RoHS compliance (ROHS3 compliant versus non-compliant). MAX4522ESE+ is the recommended replacement for new designs and production continuity.

Q: What is the difference between ADG432BRZ and ADG432BRZ-REEL?

A: Both parts are electrically identical with 24Ohm on-state resistance and identical electrical specifications. The difference is packaging format: ADG432BRZ is supplied in tube packaging, while ADG432BRZ-REEL is supplied in cut tape and Digi-Reel format. Selection depends on assembly process requirements and inventory management preferences.

Q: Can I use ADG412BRZ-REEL7 in place of MAX4522ESE?

A: ADG412BRZ-REEL7 is functionally compatible as a 4-circuit SPST-NO switch in 16-SOIC packaging. However, it features 35Ohm on-state resistance (versus 100Ohm), requires ±15V supply operation (versus ±2V to ±6V), and has slower switching times (175ns/145ns versus 80ns/30ns). Use this part only if your application can accommodate these parameter differences and benefits from the lower on-state resistance.

Q: Is ADG512BRZ suitable for replacing MAX4522ESE?

A: ADG512BRZ is not suitable as a replacement. While it maintains the 16-SOIC package and 4-circuit SPST-NO topology, it operates on reduced supply voltages (3V to 5.5V single, ±4.5V to 5.5V dual) and cannot support the full 2V to 12V single supply range required by MAX4522ESE designs. Use ADG512BRZ only for applications specifically designed for low-voltage operation.

Q: What does on-state resistance (Ron) mean for switch selection?

A: On-state resistance is the resistance measured across the switch when it is in the closed (conducting) state. Lower Ron values reduce insertion loss, minimize power dissipation, and improve signal fidelity in analog switching applications. The MAX4522ESE specifies 100Ohm maximum Ron. Substitute parts with lower Ron values (24Ohm, 30Ohm, 35Ohm, 70Ohm) provide improved performance but may require circuit redesign if the original design relied on the higher resistance value for impedance matching or current limiting.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts listed are ROHS3 compliant. The original MAX4522ESE is RoHS non-compliant. If RoHS compliance is a design requirement, MAX4522ESE+ or any of the ADG-series alternatives satisfy this requirement.

Q: Can I mix packaging formats (tube versus tape and reel) in production?

A: Packaging format selection depends on assembly process requirements. Tube packaging (ADG432BRZ, ADG412BRZ, ADG442BRZ, ADG512BRZ) is suitable for manual or semi-automated assembly. Cut tape and Digi-Reel format (ADG432BRZ-REEL, ADG412BRZ-REEL, ADG412BRZ-REEL7, ADG442BRZ-REEL) is optimized for automated pick-and-place assembly. Electrical performance is identical between packaging formats of the same base part number.

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