MAX4514ESA+ Equivalent & Substitute Parts

Part Overview

The MAX4514ESA+ is a single-circuit SPST-NO (Normally Open) analog switch manufactured by Analog Devices Inc./Maxim Integrated. This interface component operates across a 2V to 12V single supply range with a maximum on-state resistance of 20Ohm and is housed in an 8-SOIC surface mount package. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating. Alternative components may be required due to inventory constraints, packaging preferences, or performance optimization needs in specific applications.

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-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MAX4514ESA+ is determined by the following critical parameters:

Mandatory Matching Criteria:

Switch Circuit Type: SPST - NO
Multiplexer/Demultiplexer Circuit: 1:1
Number of Circuits: 1
Package / Case: 8-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Operating Temperature Range: -40°C ~ 85°C (TA)

Allowable Parameter Variations:

On-State Resistance (Max): May be lower than 20Ohm (improved performance)
Voltage - Supply, Single (V+): May be wider range (e.g., 2.7V ~ 12V)
Switch Time: May be faster (lower values acceptable)
Charge Injection: May differ
Channel Capacitance: May be lower (improved performance)
Current - Leakage: Must remain at or below 1nA

Packaging Flexibility:

Tube packaging (original) or Tape & Reel (TR) packaging are both acceptable for equivalent substitution

The Texas Instruments TS12A4514D and TS12A4514DR meet all mandatory criteria while offering improved electrical performance characteristics.

Parameter Comparison

Parameter	MAX4514ESA+ (Analog Devices)	TS12A4514D (Texas Instruments)	TS12A4514DR (Texas Instruments)
Manufacturer	Analog Devices Inc./Maxim Integrated	Texas Instruments	Texas Instruments
Switch Circuit Type	SPST - NO	SPST - NO	SPST - NO
Multiplexer/Demultiplexer Circuit	1:1	1:1	1:1
Number of Circuits	1	1	1
On-State Resistance (Max)	20Ohm	10Ohm	10Ohm
Voltage - Supply, Single (V+)	2V ~ 12V	2.7V ~ 12V	2.7V ~ 12V
Switch Time (Ton, Toff) (Max)	150ns, 100ns	75ns, 45ns	75ns, 45ns
-3db Bandwidth	-	520MHz	520MHz
Charge Injection	2pC	-11.5pC	-11.5pC
Channel Capacitance (CS(off), CD(off))	14pF, 14pF	7.5pF, 7.5pF	7.5pF, 7.5pF
Current - Leakage (IS(off)) (Max)	1nA	1nA	1nA
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Packaging	Tube	Tube	Tape & Reel (TR)
Product Status	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

All three parts listed—MAX4514ESA+, TS12A4514D, and TS12A4514DR—are active production components with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). They are functionally equivalent for SPST-NO switching applications requiring 8-SOIC surface mount packaging.

The Texas Instruments TS12A4514D and TS12A4514DR offer improved electrical performance with lower on-state resistance (10Ohm vs. 20Ohm), faster switching times, and reduced channel capacitance. These characteristics make them suitable for applications where lower insertion loss or faster switching response is beneficial.

Selection between TS12A4514D (Tube) and TS12A4514DR (Tape & Reel) depends on packaging and volume requirements. The Tape & Reel variant (TS12A4514DR) provides higher inventory availability (16,786 pcs) compared to the Tube variant (3,024 pcs).

Frequently Asked Questions (FAQ)

Q: Can TS12A4514D or TS12A4514DR be used as direct replacements for MAX4514ESA+?

A: Yes. Both Texas Instruments parts meet all mandatory substitution criteria: identical switch circuit type (SPST-NO), multiplexer configuration (1:1), package (8-SOIC), mounting type (Surface Mount), and operating temperature range (-40°C ~ 85°C). The improved electrical performance characteristics (lower on-state resistance, faster switching, reduced capacitance) make them functionally superior for equivalent applications.

Q: What is the difference between TS12A4514D and TS12A4514DR?

A: The primary difference is packaging format. TS12A4514D is supplied in Tube packaging, while TS12A4514DR is supplied in Tape & Reel (TR) packaging. Both parts are electrically identical. Tape & Reel packaging is typically preferred for automated assembly processes and higher volume production runs.

Q: Are there any voltage supply limitations when substituting?

A: The MAX4514ESA+ operates from 2V to 12V single supply. The TS12A4514D and TS12A4514DR operate from 2.7V to 12V. If your application requires operation below 2.7V, the MAX4514ESA+ must be used. For applications operating at 2.7V or higher, all three parts are compatible.

Q: How do the switching speed differences affect circuit design?

A: The TS12A4514D and TS12A4514DR offer faster switching times (75ns Ton, 45ns Toff) compared to MAX4514ESA+ (150ns Ton, 100ns Toff). Faster switching reduces propagation delay and improves signal fidelity in time-sensitive applications. If your circuit design is based on the slower MAX4514ESA+ timing, the faster Texas Instruments alternatives will not cause compatibility issues.

Q: What does the lower on-state resistance mean for my application?

A: Lower on-state resistance (10Ohm vs. 20Ohm) reduces voltage drop across the switch and power dissipation. This is beneficial in applications with higher signal currents or where minimizing insertion loss is critical. If your circuit is designed for 20Ohm maximum resistance, the 10Ohm alternatives provide improved performance margin.

Q: Are all three parts RoHS compliant?

A: Yes. MAX4514ESA+, TS12A4514D, and TS12A4514DR are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, making them suitable for standard PCB assembly and storage conditions.

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