MAX4712ESE Equivalent & Substitute Parts

Part Overview

The MAX4712ESE is a 4-circuit SPST-NO IC switch manufactured by Analog Devices Inc./Maxim Integrated, featuring 25Ohm on-state resistance in a 16-SOIC surface mount package. This part is classified as obsolete, which necessitates identification of active equivalent and substitute components for new designs and ongoing production requirements. The MAX4712ESE operates across a wide supply voltage range (2.7V to 11V single supply, ±2.7V to ±5.5V dual supply) with fast switching characteristics suitable for signal routing and multiplexing applications.

Key Parameters

Parameter	Value
Switch Circuit Type	SPST - NO (Single Pole Single Throw - Normally Open)
Number of Circuits	4
Multiplexer/Demultiplexer Configuration	1:1
On-State Resistance (Max)	25Ohm
Channel-to-Channel Matching (ΔRon)	200mOhm
Voltage - Supply, Single (V+)	2.7V ~ 11V
Voltage - Supply, Dual (V±)	±2.7V ~ 5.5V
Switch Time (Ton, Toff) (Max)	125ns, 80ns
Charge Injection	25pC
Channel Capacitance (CS(off), CD(off))	8pF, 8pF
Current - Leakage (IS(off)) (Max)	500pA
Crosstalk	-87dB @ 1MHz
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the MAX4712ESE is determined by strict equivalence across the following critical parameters: switch circuit type (SPST-NO), number of circuits (4), multiplexer configuration (1:1), package type (16-SOIC), and mounting method (surface mount). The on-state resistance value is the primary differentiator among available substitutes, with acceptable alternatives ranging from 25Ohm to 200Ohm depending on application requirements. Supply voltage compatibility, switching speed, and leakage current specifications must remain within acceptable operational limits for the target application.

Substitutes are grouped into the following categories:

Direct Equivalent (Identical Specifications): MAX4712ESE+ — identical electrical specifications with active product status and improved RoHS compliance.

Low Resistance Alternatives (25Ohm - 30Ohm): ADG512BRZ, ADG512BRZ-REEL, ADG512BRZ-REEL7 — 30Ohm on-state resistance, suitable for applications requiring minimal signal attenuation with 3V to 5.5V single supply operation.

Medium Resistance Alternatives (70Ohm - 90Ohm): ADG442BRZ, ADG442BRZ-REEL, ADG202AKRZ, ADG202AKRZ-REEL, ADG202AKRZ-REEL7 — higher on-state resistance values with enhanced performance characteristics including lower charge injection and improved crosstalk isolation.

High Resistance Alternative (200Ohm): ADG1312YRZ-REEL7 — 200Ohm on-state resistance with extended temperature range (-40°C to 105°C) and superior bandwidth performance (600MHz).

Parameter Comparison

Part Number	Manufacturer	On-State Resistance (Max)	ΔRon	V+ Supply	V± Supply	Ton/Toff (Max)	Charge Injection	Leakage (Max)	Crosstalk	Temp Range	Package	Product Status	RoHS Status
MAX4712ESE	Analog Devices/Maxim	25Ohm	200mOhm	2.7V ~ 11V	±2.7V ~ 5.5V	125ns, 80ns	25pC	500pA	-87dB @ 1MHz	-40°C ~ 85°C	16-SOIC	Obsolete	RoHS non-compliant
MAX4712ESE+	Analog Devices/Maxim	25Ohm	200mOhm	2.7V ~ 11V	±2.7V ~ 5.5V	125ns, 80ns	25pC	500pA	-87dB @ 1MHz	-40°C ~ 85°C	16-SOIC	Active	ROHS3 Compliant
ADG512BRZ	Analog Devices	30Ohm (Typ)	—	3V ~ 5.5V	±4.5V ~ 5.5V	200ns, 120ns (Typ)	11pC	100pA	-85dB @ 1MHz	-40°C ~ 85°C	16-SOIC	Active	ROHS3 Compliant
ADG512BRZ-REEL	Analog Devices	30Ohm (Typ)	—	3V ~ 5.5V	±4.5V ~ 5.5V	200ns, 120ns (Typ)	11pC	100pA	-85dB @ 1MHz	-40°C ~ 85°C	16-SOIC	Active	ROHS3 Compliant
ADG512BRZ-REEL7	Analog Devices	30Ohm (Typ)	—	3V ~ 5.5V	±4.5V ~ 5.5V	200ns, 120ns (Typ)	11pC	100pA	-85dB @ 1MHz	-40°C ~ 85°C	16-SOIC	Active	ROHS3 Compliant
ADG442BRZ	Analog Devices	70Ohm	—	12V	±15V	110ns, 60ns	1pC	500pA	-100dB @ 1MHz	-40°C ~ 85°C	16-SOIC	Active	ROHS3 Compliant
ADG442BRZ-REEL	Analog Devices	70Ohm	—	12V	±15V	110ns, 60ns	1pC	500pA	-100dB @ 1MHz	-40°C ~ 85°C	16-SOIC	Active	ROHS3 Compliant
ADG202AKRZ	Analog Devices	90Ohm	4.5Ohm	10V ~ 15V	±10V ~ 15V	300ns, 250ns	20pC	2nA	-80dB @ 100kHz	-40°C ~ 85°C	16-SOIC	Active	ROHS3 Compliant
ADG202AKRZ-REEL	Analog Devices	90Ohm	4.5Ohm	10V ~ 15V	±10V ~ 15V	300ns, 250ns	20pC	2nA	-80dB @ 100kHz	-40°C ~ 85°C	16-SOIC	Active	ROHS3 Compliant
ADG202AKRZ-REEL7	Analog Devices	90Ohm	4.5Ohm	10V ~ 15V	±10V ~ 15V	300ns, 250ns	20pC	2nA	-80dB @ 100kHz	-40°C ~ 85°C	16-SOIC	Active	ROHS3 Compliant
ADG1312YRZ-REEL7	Analog Devices	200Ohm	5Ohm	12V	±15V	125ns, 50ns	2pC	10nA	-90dB @ 1MHz	-40°C ~ 105°C	16-SOIC	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): MAX4712ESE+ is the primary recommendation as an active equivalent. It maintains identical electrical specifications and package configuration while providing ROHS3 compliance, addressing the obsolescence status of the original MAX4712ESE.

For Low-Voltage Applications (3V to 5.5V Supply): ADG512BRZ, ADG512BRZ-REEL, or ADG512BRZ-REEL7 are suitable alternatives when supply voltage is constrained to 3V to 5.5V single supply operation. These parts feature 30Ohm on-state resistance with reduced leakage current (100pA) and lower charge injection (11pC), beneficial for low-power signal routing applications. All variants are ROHS3 compliant and active products.

For Higher Supply Voltage Applications (10V to 15V Supply): ADG202AKRZ, ADG202AKRZ-REEL, or ADG202AKRZ-REEL7 operate across 10V to 15V supply ranges with 90Ohm on-state resistance. These parts provide superior leakage characteristics (2nA) and are suitable for applications requiring higher supply voltages with acceptable resistance values.

For Enhanced Performance (12V to ±15V Supply): ADG442BRZ or ADG442BRZ-REEL deliver 70Ohm on-state resistance with exceptional crosstalk isolation (-100dB @ 1MHz), minimal charge injection (1pC), and fast switching times (110ns, 60ns). These are optimal for precision signal switching applications operating at 12V or ±15V supplies.

For Extended Temperature Range (up to 105°C): ADG1312YRZ-REEL7 extends the operating temperature range to -40°C to 105°C with 200Ohm on-state resistance, 600MHz bandwidth, and superior charge injection performance (2pC). This part is suitable for industrial and automotive applications requiring extended thermal operation.

All recommended substitutes are ROHS3 compliant active products, addressing both the obsolescence and regulatory compliance requirements of the original MAX4712ESE.

Frequently Asked Questions (FAQ)

Q: Can MAX4712ESE+ be used as a direct drop-in replacement for MAX4712ESE?

A: Yes. MAX4712ESE+ maintains identical electrical specifications, package configuration (16-SOIC), and pin assignment. The primary differences are active product status and ROHS3 compliance. No circuit modifications are required.

Q: What is the primary difference between the substitute parts?

A: On-state resistance is the primary electrical differentiator. Substitutes range from 25Ohm (MAX4712ESE+) to 200Ohm (ADG1312YRZ-REEL7). Supply voltage requirements also vary: ADG512 series operates at 3V to 5.5V, ADG202 series at 10V to 15V, ADG442 at 12V or ±15V, and ADG1312 at 12V or ±15V. Selection depends on application supply voltage and acceptable signal attenuation.

Q: Are all substitute parts available in the same package?

A: Yes. All substitute parts are packaged in 16-SOIC (0.154", 3.90mm Width) surface mount configuration, maintaining PCB layout compatibility with the original MAX4712ESE.

Q: What packaging options are available for the substitute parts?

A: Substitute parts are available in multiple packaging formats: Tube, Tape & Reel (TR), and Cut Tape (CT) & Digi-Reel®. Selection depends on production volume and assembly requirements. The base part numbers (MAX4712ESE+, ADG512, ADG442, ADG202, ADG1312) identify the electrical specifications, while suffixes indicate packaging type.

Q: Which substitute is recommended for new designs?

A: For new designs requiring specifications identical to MAX4712ESE, use MAX4712ESE+. For applications with different supply voltage requirements, select based on the supply voltage range: ADG512 series for 3V to 5.5V, ADG202 series for 10V to 15V, ADG442 for 12V or ±15V, and ADG1312 for 12V or ±15V with extended temperature range.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All recommended substitute parts are ROHS3 compliant. The original MAX4712ESE is RoHS non-compliant, making substitution necessary for applications subject to RoHS regulatory requirements.

Q: What is the inventory status of these parts?

A: MAX4712ESE+ has 851 units in stock. ADG512BRZ-REEL has the highest inventory at 600,200 units. ADG442BRZ-REEL has 17,935 units, and ADG202AKRZ-REEL7 has 15,100 units. Availability varies by packaging type and supplier.

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