MAX319ESA Equivalent & Substitute Parts

Part Overview

The MAX319ESA is a single-circuit SPDT (Single Pole Double Throw) analog switch manufactured by Analog Devices Inc./Maxim Integrated, designed for signal routing and multiplexing applications in 8-SOIC surface mount packaging. This part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements. The MAX319ESA operates across a wide supply voltage range with low on-state resistance and minimal signal distortion, suitable for precision analog switching applications.

Key Parameters

Parameter	Value
Switch Circuit Configuration	SPDT (Single Pole Double Throw)
Multiplexer/Demultiplexer Circuit	2:1
Number of Circuits	1
On-State Resistance (Max)	35Ω
Channel-to-Channel Matching (ΔRon)	2Ω (Max)
Voltage - Supply, Single (V+)	10V ~ 30V
Voltage - Supply, Dual (V±)	±4.5V ~ 20V
Switch Time (Ton, Toff) (Max)	175ns, 145ns
Charge Injection	3pC
Channel Capacitance (CS(off), CD(off))	8pF, 8pF
Current - Leakage (IS(off)) (Max)	250pA
Crosstalk	-85dB @ 1MHz
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the MAX319ESA is determined by strict electrical and mechanical compatibility across the following critical parameters:

Primary Substitution Criteria:

Switch circuit configuration: SPDT
Multiplexer circuit: 2:1
Number of circuits: 1
On-state resistance: 35Ω maximum
Package type: 8-SOIC surface mount
Leakage current: 250pA maximum
Operating temperature range: minimum -40°C to 85°C

Substitution Categories:

Category 1 - Direct Packaging Variant (MAX319ESA+): Identical electrical specifications with active product status and RoHS3 compliance. Differs only in packaging format (Tube vs. standard).

Category 2 - Manufacturer Recommended Alternatives (ADG419BRZ, ADG419BRZ-REEL, ADG419BRZ-REEL7): Analog Devices ADG419 series maintains core electrical parameters (35Ω on-state resistance, SPDT 2:1 configuration, 250pA leakage) with extended operating temperature range (-40°C to 125°C) and improved crosstalk performance (-90dB @ 1MHz). Supply voltage specifications differ (12V single supply, ±15V dual supply). Available in multiple packaging formats with active product status and RoHS3 compliance.

Category 3 - Cross-Manufacturer Alternative (DG419DY-E3, DG419DY-T1-E3): Vishay Siliconix DG419 series provides electrical equivalence with identical on-state resistance, switch timing, and leakage specifications. Operating temperature limited to -40°C to 85°C. Available in Tube and Cut Tape formats with active product status and RoHS3 compliance.

Parameter Comparison

Parameter	MAX319ESA	MAX319ESA+	ADG419BRZ	ADG419BRZ-REEL	ADG419BRZ-REEL7	DG419DY-E3	DG419DY-T1-E3
Manufacturer	Analog Devices/Maxim	Analog Devices/Maxim	Analog Devices	Analog Devices	Analog Devices	Vishay Siliconix	Vishay Siliconix
Switch Circuit	SPDT	SPDT	SPDT	SPDT	SPDT	SPDT	SPDT
Multiplexer Circuit	2:1	2:1	2:1	2:1	2:1	2:1	2:1
On-State Resistance (Max)	35Ω	35Ω	35Ω	35Ω	35Ω	35Ω	35Ω
Channel-to-Channel Matching (ΔRon)	2Ω (Max)	2Ω (Max)	—	—	—	—	—
Voltage - Supply, Single (V+)	10V ~ 30V	10V ~ 30V	12V	12V	12V	12V	12V
Voltage - Supply, Dual (V±)	±4.5V ~ 20V	±4.5V ~ 20V	±15V	±15V	±15V	±15V	±15V
Switch Time (Ton, Toff) (Max)	175ns, 145ns	175ns, 145ns	—	—	—	175ns, 145ns	175ns, 145ns
Charge Injection	3pC	3pC	—	—	—	60pC	60pC
Channel Capacitance (CS(off), CD(off))	8pF, 8pF	8pF, 8pF	6pF	6pF	6pF	8pF, 8pF	8pF, 8pF
Current - Leakage (IS(off)) (Max)	250pA	250pA	250pA	250pA	250pA	250pA	250pA
Crosstalk	-85dB @ 1MHz	-85dB @ 1MHz	-90dB @ 1MHz	-90dB @ 1MHz	-90dB @ 1MHz	—	—
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement with Minimal Design Impact: MAX319ESA+ is the optimal choice when supply voltage requirements match the original specification (10V ~ 30V single supply or ±4.5V ~ 20V dual supply). This part maintains identical electrical performance and charge injection characteristics while offering active product status and RoHS3 compliance. Packaging format differs (Tube), but electrical function is unchanged.

For New Designs and Extended Temperature Applications: ADG419BRZ, ADG419BRZ-REEL, or ADG419BRZ-REEL7 are recommended when designs operate within 12V single supply or ±15V dual supply specifications. These parts provide extended operating temperature range (-40°C to 125°C), improved crosstalk performance (-90dB @ 1MHz), and active product status with RoHS3 compliance. Multiple packaging options accommodate different procurement workflows. Select based on packaging requirement: Tube (ADG419BRZ), Cut Tape & Digi-Reel standard (ADG419BRZ-REEL), or Cut Tape & Digi-Reel 7-inch (ADG419BRZ-REEL7).

For Cross-Manufacturer Sourcing: DG419DY-E3 (Tube) or DG419DY-T1-E3 (Cut Tape & Digi-Reel) from Vishay Siliconix provide electrical equivalence with identical switch timing and charge injection specifications. These parts maintain the original operating temperature range (-40°C to 85°C) and are suitable when supply voltage is limited to 12V single or ±15V dual. Select based on packaging format preference. Both offer active product status and RoHS3 compliance.

Compliance Consideration: All substitute parts listed are RoHS3 compliant, addressing regulatory requirements that the obsolete MAX319ESA does not meet. This compliance status is mandatory for new production and designs targeting regulated markets.

Frequently Asked Questions (FAQ)

Q: Can MAX319ESA+ be used as a direct drop-in replacement for MAX319ESA? A: Yes. MAX319ESA+ maintains identical electrical specifications, on-state resistance, charge injection, and operating temperature range. The only difference is packaging format (Tube). Electrical performance and PCB footprint are unchanged.

Q: What are the key differences between MAX319ESA and ADG419BRZ? A: Both maintain 35Ω on-state resistance and SPDT 2:1 configuration. ADG419BRZ differs in supply voltage specifications (12V single, ±15V dual vs. 10V~30V single, ±4.5V~20V dual), extended operating temperature (-40°C to 125°C vs. -40°C to 85°C), and improved crosstalk (-90dB vs. -85dB @ 1MHz). Charge injection data is not provided for ADG419BRZ.

Q: Are DG419DY variants electrically equivalent to MAX319ESA? A: DG419DY-E3 and DG419DY-T1-E3 maintain core electrical parameters: 35Ω on-state resistance, SPDT 2:1 configuration, identical switch timing (175ns, 145ns), and 250pA leakage current. Supply voltage is limited to 12V single or ±15V dual. Operating temperature matches the original (-40°C to 85°C). Charge injection is higher (60pC vs. 3pC).

Q: Which substitute part has the best performance characteristics? A: ADG419BRZ series offers the best overall performance with extended operating temperature range (-40°C to 125°C) and superior crosstalk performance (-90dB @ 1MHz). However, selection depends on specific application requirements, particularly supply voltage constraints and temperature operating range.

Q: What packaging options are available for each substitute? A: MAX319ESA+ is available in Tube. ADG419BRZ is available in Tube; ADG419BRZ-REEL and ADG419BRZ-REEL7 are available in Cut Tape & Digi-Reel formats. DG419DY-E3 is available in Tube; DG419DY-T1-E3 is available in Cut Tape & Digi-Reel. Select based on procurement and assembly requirements.

Q: Are all substitute parts RoHS compliant? A: Yes. All listed substitutes (MAX319ESA+, ADG419BRZ series, and DG419DY series) are RoHS3 compliant. The original MAX319ESA is RoHS non-compliant.

Q: Can I use ADG419BRZ in a circuit designed for MAX319ESA with ±20V dual supply? A: No. ADG419BRZ is rated for ±15V dual supply maximum. Exceeding this specification violates device ratings. Verify your circuit's actual supply voltage requirements before substitution.

Q: What is the difference between ADG419BRZ-REEL and ADG419BRZ-REEL7? A: Both are identical electrically and functionally. The difference is in reel size: standard Digi-Reel vs. 7-inch Digi-Reel. Selection depends on your assembly equipment and procurement preferences.

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