MAX312ESE Equivalent & Substitute Parts

Part Overview

The MAX312ESE is a 4-circuit SPST-NC (Single Pole Single Throw - Normally Closed) analog switch IC manufactured by Analog Devices Inc./Maxim Integrated. This component features a 1:1 multiplexer/demultiplexer configuration with 10Ohm on-state resistance and operates across a wide supply voltage range of 4.5V to 30V (single supply) or ±4.5V to ±20V (dual supply). The device is housed in a 16-SOIC surface mount package.

The MAX312ESE is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and meet current RoHS compliance requirements. Active alternatives with comparable electrical characteristics are available from Analog Devices Inc.

Key Parameters

Parameter	Value
Switch Circuit Configuration	SPST - NC
Number of Circuits	4
Multiplexer/Demultiplexer Ratio	1:1
On-State Resistance (Max)	10Ohm
Channel-to-Channel Matching (ΔRon)	300mOhm
Voltage - Supply, Single (V+)	4.5V ~ 30V
Voltage - Supply, Dual (V±)	±4.5V ~ 20V
Switch Time (Ton, Toff) (Max)	225ns, 185ns
Charge Injection	20pC
Channel Capacitance (CS(off), CD(off))	15pF, 15pF
Current - Leakage (IS(off)) (Max)	500pA
Crosstalk	-85dB @ 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 MAX312ESE is determined by the following critical parameters:

Switch Circuit Configuration: Must be SPST - NC (Single Pole Single Throw - Normally Closed)
Number of Circuits: Must be 4 circuits
Multiplexer/Demultiplexer Ratio: Must be 1:1
Package / Case: Must be 16-SOIC (0.154", 3.90mm Width) for mechanical and electrical compatibility
Operating Temperature Range: Must support -40°C ~ 85°C (TA)
Mounting Type: Must be Surface Mount

Substitute parts are grouped into two categories based on on-state resistance characteristics:

Category 1 - Direct Electrical Equivalent (10Ohm On-State Resistance)

MAX312ESE+ (Active, RoHS3 Compliant, Tube packaging)

Category 2 - Higher On-State Resistance Alternatives (24Ohm - 115Ohm)

ADG211AKRZ, ADG211AKRZ-REEL, ADG211AKRZ-REEL7 (115Ohm)
ADG431BRZ, ADG431BRZ-REEL, ADG431BRZ-REEL7 (24Ohm)
ADG411BRZ, ADG411BRZ-REEL, ADG411BRZ-REEL7 (35Ohm)

All substitute parts maintain the same circuit topology (SPST-NC, 4 circuits, 1:1 ratio), package form factor (16-SOIC), and operating temperature range. Differences in on-state resistance, switching speed, and supply voltage requirements must be evaluated against specific application requirements.

Parameter Comparison

Part Number	Manufacturer	Product Status	On-State Resistance (Max)	Switch Time Ton/Toff (Max)	Voltage - Supply Single (V+)	Voltage - Supply Dual (V±)	Charge Injection	Current - Leakage (Max)	Crosstalk	RoHS Status	Packaging
MAX312ESE	Analog Devices Inc./Maxim Integrated	Obsolete	10Ohm	225ns, 185ns	4.5V ~ 30V	±4.5V ~ 20V	20pC	500pA	-85dB @ 1MHz	RoHS non-compliant	16-SOIC
MAX312ESE+	Analog Devices Inc./Maxim Integrated	Active	10Ohm	225ns, 185ns	4.5V ~ 30V	±4.5V ~ 20V	20pC	500pA	-85dB @ 1MHz	ROHS3 Compliant	16-SOIC
ADG211AKRZ	Analog Devices Inc.	Active	115Ohm	600ns, 450ns	15V	±15V	20pC	5nA	-80dB @ 100kHz	ROHS3 Compliant	16-SOIC
ADG211AKRZ-REEL	Analog Devices Inc.	Active	115Ohm	600ns, 450ns	15V	±15V	20pC	5nA	-80dB @ 100kHz	ROHS3 Compliant	16-SOIC
ADG211AKRZ-REEL7	Analog Devices Inc.	Active	115Ohm	600ns, 450ns	15V	±15V	20pC	5nA	-80dB @ 100kHz	ROHS3 Compliant	16-SOIC
ADG411BRZ	Analog Devices Inc.	Active	35Ohm	175ns, 145ns	12V	±15V	5pC	250pA	-85dB @ 1MHz	ROHS3 Compliant	16-SOIC
ADG411BRZ-REEL	Analog Devices Inc.	Active	35Ohm	175ns, 145ns	12V	±15V	5pC	250pA	-85dB @ 1MHz	ROHS3 Compliant	16-SOIC
ADG411BRZ-REEL7	Analog Devices Inc.	Active	35Ohm	175ns, 145ns	12V	±15V	5pC	250pA	-85dB @ 1MHz	ROHS3 Compliant	16-SOIC
ADG431BRZ	Analog Devices Inc.	Active	24Ohm	90ns, 60ns	12V	±15V	5pC	250pA	-85dB @ 1MHz	ROHS3 Compliant	16-SOIC
ADG431BRZ-REEL	Analog Devices Inc.	Active	24Ohm	90ns, 60ns	12V	±15V	5pC	250pA	-85dB @ 1MHz	ROHS3 Compliant	16-SOIC
ADG431BRZ-REEL7	Analog Devices Inc.	Active	24Ohm	90ns, 60ns	12V	±15V	5pC	250pA	-85dB @ 1MHz	ROHS3 Compliant	16-SOIC

Engineering Selection Recommendations

Primary Recommendation: MAX312ESE+

The MAX312ESE+ is the direct active equivalent of the MAX312ESE. It maintains identical electrical specifications including 10Ohm on-state resistance, 225ns/185ns switching times, and the full 4.5V to 30V single supply voltage range. The critical advantage is ROHS3 compliance, addressing the RoHS non-compliance status of the original MAX312ESE. This part is currently in active production status with 933 pieces in stock.

Secondary Recommendations: ADG431BRZ Series (24Ohm)

The ADG431BRZ, ADG431BRZ-REEL, and ADG431BRZ-REEL7 variants offer the closest electrical performance to the MAX312ESE among higher on-state resistance alternatives. With 24Ohm maximum on-state resistance, these parts provide faster switching times (90ns/60ns) and lower charge injection (5pC). Supply voltage is limited to 12V single supply or ±15V dual supply. These parts are ROHS3 compliant and available in multiple packaging formats.

Alternative Recommendations: ADG411BRZ Series (35Ohm)

The ADG411BRZ series provides 35Ohm on-state resistance with switching times of 175ns/145ns. These parts are suitable for applications where slightly higher on-state resistance is acceptable. ROHS3 compliance and multiple packaging options are available.

Lower Priority: ADG211AKRZ Series (115Ohm)

The ADG211AKRZ series represents the highest on-state resistance option at 115Ohm. These parts are appropriate only for applications where on-state resistance is not a critical parameter. Supply voltage is restricted to 15V single supply or ±15V dual supply.

All substitute parts are ROHS3 compliant and maintain the 16-SOIC package form factor. Selection should be based on specific application requirements for on-state resistance, switching speed, and supply voltage compatibility.

Frequently Asked Questions (FAQ)

Q: Can MAX312ESE+ be used as a direct replacement for MAX312ESE?

A: Yes. The MAX312ESE+ is electrically and mechanically identical to the MAX312ESE. All electrical parameters including on-state resistance (10Ohm), switching times (225ns/185ns), supply voltage range (4.5V ~ 30V single, ±4.5V ~ 20V dual), and package form factor (16-SOIC) are identical. The primary difference is ROHS3 compliance status. Both parts use the same 16-SOIC package with 0.154" width.

Q: What is the difference between ADG431BRZ, ADG431BRZ-REEL, and ADG431BRZ-REEL7?

A: These three part numbers represent the same die and electrical specifications but differ in packaging format. ADG431BRZ is supplied in Tube packaging. ADG431BRZ-REEL and ADG431BRZ-REEL7 are supplied in Cut Tape (CT) & Digi-Reel® format. All three maintain identical electrical performance with 24Ohm on-state resistance and 90ns/60ns switching times.

Q: Can ADG211AKRZ replace MAX312ESE in all applications?

A: No. While ADG211AKRZ maintains the same circuit topology (SPST-NC, 4 circuits, 1:1 ratio) and 16-SOIC package, it has significantly different electrical characteristics. On-state resistance is 115Ohm compared to 10Ohm, switching times are 600ns/450ns compared to 225ns/185ns, and supply voltage is limited to 15V single or ±15V dual compared to 4.5V ~ 30V single or ±4.5V ~ 20V dual. Substitution is only valid if the application can tolerate these parameter differences.

Q: What is the significance of the REEL and REEL7 designations?

A: REEL and REEL7 designations indicate tape and reel packaging formats used for automated assembly. REEL7 typically indicates a 7-inch reel format. Both formats contain the same component with identical electrical specifications. Selection between these formats depends on manufacturing equipment compatibility and quantity requirements.

Q: Are all substitute parts RoHS compliant?

A: All recommended substitute parts (MAX312ESE+, ADG431BRZ series, ADG411BRZ series, and ADG211AKRZ series) are ROHS3 compliant. The original MAX312ESE is RoHS non-compliant. This compliance difference is a primary reason for transitioning to substitute parts in new designs.

Q: What is the impact of on-state resistance differences on circuit performance?

A: On-state resistance directly affects signal attenuation, power dissipation, and bandwidth. Lower on-state resistance (10Ohm in MAX312ESE) results in minimal signal loss and lower power dissipation. Higher on-state resistance in alternatives (24Ohm to 115Ohm) increases signal attenuation and power dissipation. Applications sensitive to signal integrity or operating at high frequencies should prioritize lower on-state resistance options.

Q: Can the ADG431BRZ operate with the same supply voltages as MAX312ESE?

A: No. ADG431BRZ is limited to 12V single supply or ±15V dual supply, while MAX312ESE operates across 4.5V ~ 30V single supply or ±4.5V ~ 20V dual supply. If your application requires the extended voltage range of MAX312ESE, ADG431BRZ is not suitable. MAX312ESE+ maintains the full voltage range compatibility.

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