MAX4514EPA Equivalent & Substitute Parts

Part Overview

The MAX4514EPA is a single-circuit SPST-NO (Single Pole Single Throw - Normally Open) IC switch manufactured by Analog Devices Inc./Maxim Integrated. This component functions as an electronic switch with a maximum on-state resistance of 20Ohm and operates across a supply voltage range of 2V to 12V. The device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, design updates, and procurement continuity.

Key Parameters

Parameter	Value
Switch Circuit Type	SPST - NO
Multiplexer/Demultiplexer Circuit	1:1
Number of Circuits	1
On-State Resistance (Max)	20Ohm
Voltage - Supply, Single (V+)	2V ~ 12V
Switch Time (Ton, Toff) (Max)	150ns, 100ns
Charge Injection	2pC
Channel Capacitance (CS(off), CD(off))	14pF, 14pF
Current - Leakage (IS(off)) (Max)	1nA
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the MAX4514EPA is determined by strict equivalence across the following critical parameters:

Mandatory Compatibility Criteria:

Switch circuit topology: SPST - NO configuration
Multiplexer/demultiplexer circuit ratio: 1:1
Number of circuits: 1
Package type: 8-DIP (0.300", 7.62mm) through-hole mounting
Operating temperature range: -40°C ~ 85°C (TA)
Supply voltage compatibility: Substitute must operate within or exceed the 2V ~ 12V range

Performance Parameters (Allowable Variation):

On-state resistance: Substitute values must not exceed the application's maximum allowable resistance
Switch timing characteristics (Ton, Toff): Faster switching is acceptable; slower switching requires application validation
Charge injection and channel capacitance: Lower values indicate improved performance characteristics
Leakage current: Must remain at or below specified maximum

The TS12A4514P from Texas Instruments meets all mandatory compatibility criteria and demonstrates improved electrical performance across multiple parameters.

Parameter Comparison

Parameter	MAX4514EPA (Analog Devices)	TS12A4514P (Texas Instruments)
Switch Circuit	SPST - NO	SPST - NO
Multiplexer/Demultiplexer Circuit	1:1	1:1
Number of Circuits	1	1
On-State Resistance (Max)	20Ohm	10Ohm
Voltage - Supply, Single (V+)	2V ~ 12V	2.7V ~ 12V
Switch Time Ton (Max)	150ns	75ns
Switch Time Toff (Max)	100ns	45ns
-3db Bandwidth	Not specified	520MHz
Charge Injection	2pC	-11.5pC
Channel Capacitance (CS(off), CD(off))	14pF, 14pF	7.5pF, 7.5pF
Current - Leakage (IS(off)) (Max)	1nA	1nA
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Package / Case	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole	Through Hole
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Product Status	Obsolete	Last Time Buy

Engineering Selection Recommendations

The TS12A4514P represents a direct functional substitute for the MAX4514EPA based on identical package geometry, circuit topology, and operating temperature specifications. The substitute part demonstrates superior electrical performance characteristics, including reduced on-state resistance (10Ohm versus 20Ohm), faster switching times, and lower channel capacitance values.

From a compliance perspective, the TS12A4514P achieves ROHS3 compliance, whereas the MAX4514EPA is RoHS non-compliant. Both parts maintain equivalent leakage current specifications and identical operating temperature ranges.

The minimum supply voltage specification for the TS12A4514P is 2.7V compared to 2V for the MAX4514EPA. Applications requiring operation below 2.7V require validation against the substitute part's datasheet specifications.

Frequently Asked Questions (FAQ)

Q: Can the TS12A4514P directly replace the MAX4514EPA in existing designs?

A: Yes, the TS12A4514P is a direct pin-compatible replacement. Both devices utilize identical 8-DIP through-hole packaging and share the same SPST-NO switch topology. No PCB modifications are required. However, verify that your application's minimum supply voltage requirement does not fall below 2.7V.

Q: What are the key performance improvements of the TS12A4514P?

A: The TS12A4514P offers reduced on-state resistance (10Ohm versus 20Ohm), faster switching times (75ns/45ns versus 150ns/100ns), and lower channel capacitance (7.5pF versus 14pF). These improvements reduce power dissipation and enable higher-frequency signal switching.

Q: Are there compliance differences between these parts?

A: Yes. The TS12A4514P is ROHS3 compliant, while the MAX4514EPA is RoHS non-compliant. If your application or supply chain requires RoHS compliance, the TS12A4514P is the appropriate selection.

Q: What is the significance of the product status difference?

A: The MAX4514EPA is classified as obsolete, indicating discontinued manufacturing and limited availability. The TS12A4514P is designated Last Time Buy, indicating a defined end-of-life window with controlled availability. For new designs or long-term production requirements, the TS12A4514P is the recommended selection.

Q: Does the minimum supply voltage difference affect compatibility?

A: The TS12A4514P requires a minimum supply voltage of 2.7V, compared to 2V for the MAX4514EPA. If your application operates at supply voltages between 2V and 2.7V, the TS12A4514P cannot be used without circuit modification or alternative component selection.

Q: Are the electrical characteristics identical for both parts?

A: Both parts maintain identical maximum leakage current specifications (1nA) and operating temperature ranges (-40°C to 85°C). The TS12A4514P demonstrates superior performance in on-state resistance, switching speed, and capacitance characteristics, making it suitable for applications requiring lower power dissipation or higher-frequency operation.

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