MAX4519CPD Equivalent & Substitute Parts

Part Overview

The MAX4519CPD is a 2-circuit IC switch with DPST-NO configuration and 100Ohm on-state resistance, packaged in 14-DIP through-hole format. This component is classified as obsolete, which necessitates identification of active equivalent parts for new designs and ongoing production requirements. The MAX4519CPD+ serves as the direct active substitute, maintaining identical electrical and mechanical specifications while offering current availability and improved compliance status.

Key Parameters

Parameter	Specification
Switch Circuit Configuration	DPST - NO (Double Pole Single Throw - Normally Open)
Multiplexer/Demultiplexer Circuit	2:1
Number of Circuits	2
On-State Resistance (Max)	100Ohm
Channel-to-Channel Matching (ΔRon)	4Ohm (Max)
Voltage - Supply, Single (V+)	2V ~ 15V (Main Part); 2.7V ~ 15V (Substitute)
Voltage - Supply, Dual (V±)	±2.7V ~ 8V
Switch Time (Ton, Toff) (Max)	150ns, 150ns
Charge Injection (Max)	5pC
Channel Capacitance (CS(off), CD(off))	5pF, 10pF
Current - Leakage (IS(off)) (Max)	100pA
Crosstalk	-92dB @ 100kHz
Operating Temperature	0°C ~ 70°C (TA)
Package / Case	14-DIP (0.300", 7.62mm)
Mounting Type	Through Hole

Substitute Part Grouping Explanation

Substitution of the MAX4519CPD with the MAX4519CPD+ is based on strict equivalence across all critical electrical and mechanical parameters. The allowed substitution criteria are:

Identical switch circuit configuration (DPST - NO)
Identical multiplexer/demultiplexer circuit topology (2:1)
Identical number of circuits (2)
Identical on-state resistance specification (100Ohm maximum)
Identical channel-to-channel matching tolerance (4Ohm maximum)
Identical switching time characteristics (150ns maximum for both Ton and Toff)
Identical charge injection specification (5pC maximum)
Identical channel capacitance values (5pF and 10pF)
Identical leakage current specification (100pA maximum)
Identical crosstalk performance (-92dB @ 100kHz)
Identical operating temperature range (0°C ~ 70°C)
Identical package and mounting configuration (14-DIP through-hole)

The MAX4519CPD+ maintains full electrical and mechanical compatibility with the obsolete MAX4519CPD. The single variance in single supply voltage range (2.7V minimum versus 2V minimum) represents a tighter specification that does not restrict substitution in applications operating within the 2.7V ~ 15V window.

Parameter Comparison

Parameter	MAX4519CPD (Main Part)	MAX4519CPD+ (Substitute)	Compatibility
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Identical
Switch Circuit	DPST - NO	DPST - NO	Identical
Multiplexer/Demultiplexer Circuit	2:1	2:1	Identical
Number of Circuits	2	2	Identical
On-State Resistance (Max)	100Ohm	100Ohm	Identical
Channel-to-Channel Matching (ΔRon)	4Ohm (Max)	4Ohm (Max)	Identical
Voltage - Supply, Single (V+)	2V ~ 15V	2.7V ~ 15V	Substitute range is subset
Voltage - Supply, Dual (V±)	±2.7V ~ 8V	±2.7V ~ 8V	Identical
Switch Time (Ton, Toff) (Max)	150ns, 150ns	150ns, 150ns	Identical
Charge Injection (Max)	5pC	5pC	Identical
Channel Capacitance (CS(off), CD(off))	5pF, 10pF	5pF, 10pF	Identical
Current - Leakage (IS(off)) (Max)	100pA	100pA	Identical
Crosstalk	-92dB @ 100kHz	-92dB @ 100kHz	Identical
Operating Temperature	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)	Identical
Package / Case	14-DIP (0.300", 7.62mm)	14-DIP (0.300", 7.62mm)	Identical
Mounting Type	Through Hole	Through Hole	Identical
Product Status	Obsolete	Active	Substitute is active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	Substitute offers improved compliance

Engineering Selection Recommendations

The MAX4519CPD+ is the direct equivalent for the obsolete MAX4519CPD. Selection of the MAX4519CPD+ is appropriate for all applications currently using or designed for the MAX4519CPD, provided the application supply voltage operates within the 2.7V ~ 15V single supply range or ±2.7V ~ 8V dual supply range.

The MAX4519CPD+ offers the advantage of active product status, ensuring continued availability for production and new designs. Additionally, the MAX4519CPD+ achieves ROHS3 compliance, whereas the original MAX4519CPD is RoHS non-compliant. This compliance improvement supports regulatory requirements in applications subject to RoHS directives.

Both parts maintain identical electrical performance across all specified parameters, including on-state resistance, switching time, charge injection, and crosstalk characteristics. The through-hole 14-DIP package format is identical, permitting direct PCB layout compatibility without redesign.

Frequently Asked Questions (FAQ)

Q: Can the MAX4519CPD+ be used as a direct replacement for the MAX4519CPD in existing designs?

A: Yes. The MAX4519CPD+ is electrically and mechanically equivalent to the MAX4519CPD across all specified parameters. Direct substitution is appropriate for applications operating within the specified supply voltage ranges (2.7V ~ 15V single supply or ±2.7V ~ 8V dual supply). The identical 14-DIP through-hole package permits direct PCB compatibility without layout modification.

Q: What is the difference between the MAX4519CPD and MAX4519CPD+ part numbers?

A: The MAX4519CPD is classified as obsolete, while the MAX4519CPD+ is an active product. Both parts are manufactured by Analog Devices Inc./Maxim Integrated and share identical electrical specifications. The MAX4519CPD+ additionally achieves ROHS3 compliance, whereas the MAX4519CPD is RoHS non-compliant.

Q: Are there any supply voltage limitations when substituting the MAX4519CPD+ for the MAX4519CPD?

A: The MAX4519CPD+ specifies a minimum single supply voltage of 2.7V, compared to 2.0V for the MAX4519CPD. Applications operating at supply voltages below 2.7V require the original MAX4519CPD or alternative components rated for lower supply voltages. Dual supply operation (±2.7V ~ 8V) is identical for both parts.

Q: Is the 14-DIP package identical between both parts?

A: Yes. Both the MAX4519CPD and MAX4519CPD+ use the identical 14-DIP (0.300", 7.62mm) through-hole package. No PCB layout or footprint modifications are required for substitution.

Q: What are the key electrical parameters that define substitution compatibility?

A: Substitution compatibility is determined by identical specifications across switch circuit configuration (DPST - NO), multiplexer topology (2:1), on-state resistance (100Ohm maximum), channel-to-channel matching (4Ohm maximum), switching time (150ns maximum), charge injection (5pC maximum), leakage current (100pA maximum), and crosstalk performance (-92dB @ 100kHz).

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