NLAS4053DTG Equivalent & Substitute Parts

Part Overview

The NLAS4053DTG is a 3-circuit SPDT analog switch IC manufactured by onsemi, housed in a 16-TSSOP surface mount package. This device functions as a 2:1 multiplexer/demultiplexer with an on-state resistance of 26Ohm and operates across supply voltages of 3V to 5V (single supply) or ±3V (dual supply). The product is currently obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and production continuity.

Key Parameters

Parameter	NLAS4053DTG
Manufacturer	onsemi
Switch Circuit Type	SPDT
Multiplexer/Demultiplexer Configuration	2:1
Number of Circuits	3
On-State Resistance (Max)	26Ohm
Channel-to-Channel Matching (ΔRon)	10Ohm
Voltage - Supply, Single (V+)	3V ~ 5V
Voltage - Supply, Dual (V±)	±3V
Switch Time (Ton, Toff) (Max)	23ns, 23ns
-3dB Bandwidth	180MHz
Charge Injection	12pC
Channel Capacitance (CS(off), CD(off))	10pF, 10pF
Current - Leakage (IS(off)) (Max)	100nA
Operating Temperature	-55°C ~ 125°C
Package / Case	16-TSSOP (0.173", 4.40mm Width)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the NLAS4053DTG is determined by the following mandatory parameters:

Switch circuit type: SPDT
Multiplexer/demultiplexer configuration: 2:1
Number of circuits: 3
Package type: 16-TSSOP surface mount
Operating temperature range: Must encompass or match -55°C ~ 125°C
RoHS compliance: ROHS3 Compliant
Moisture sensitivity level: MSL 1

The identified substitute parts maintain identical functional topology (3-circuit SPDT 2:1 switch) and package form factor. Variations in on-state resistance, bandwidth, and leakage current are acceptable within the constraints of the application's signal path and power budget. All substitute parts are available in 16-TSSOP packaging and maintain RoHS3 compliance with MSL 1 rating.

Parameter Comparison

Parameter	NLAS4053DTG	74HC4053PW,118	74HCT4053PW,118	74LV4053PW,118	CD74HC4053PWR	CD74HCT4053PWR
Manufacturer	onsemi	Nexperia USA Inc.	NXP Semiconductors	Nexperia USA Inc.	Texas Instruments	Texas Instruments
Switch Circuit	SPDT	SPDT	SPDT	SPDT	SPDT	SPDT
Number of Circuits	3	3	3	3	3	3
On-State Resistance (Max)	26Ohm	120Ohm	130Ohm	105Ohm	130Ohm	130Ohm
Channel-to-Channel Matching (ΔRon)	10Ohm	6Ohm	6Ohm	2Ohm	5Ohm	5Ohm
Voltage - Supply, Single (V+)	3V ~ 5V	2V ~ 10V	2V ~ 5.5V, 4.5V ~ 10V	1V ~ 6V	2V ~ 6V	4.5V ~ 5.5V
Voltage - Supply, Dual (V±)	±3V	±1.5V ~ 5V	-	-	±1V ~ 5V	±1V ~ 5V
Switch Time (Ton, Toff) (Max)	23ns, 23ns	31ns, 29ns	31ns, 29ns	31ns, 24ns	-	-
-3dB Bandwidth	180MHz	170MHz	170MHz	200MHz	200MHz	200MHz
Channel Capacitance (CS(off), CD(off))	10pF, 10pF	4.6pF	4.6pF	4.6pF	8pF	5pF, 8pF
Current - Leakage (IS(off)) (Max)	100nA	100nA	100nA	2µA	100nA	100nA
Operating Temperature	-55°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Package / Case	16-TSSOP	16-TSSOP	16-TSSOP	16-TSSOP	16-TSSOP	16-TSSOP
Product Status	Obsolete	Active	Active	Active	Last Time Buy	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1	1	1	1	1	1

Engineering Selection Recommendations

CD74HCT4053PWR is the primary recommended substitute. It maintains the full operating temperature range of -55°C ~ 125°C matching the NLAS4053DTG, carries Active product status ensuring long-term availability, and holds ROHS3 compliance with MSL 1 rating. The 130Ohm on-state resistance and 5Ohm channel matching represent acceptable performance trade-offs for applications where the original 26Ohm specification is not critical to circuit function.

CD74HC4053PWR provides an alternative with identical electrical characteristics to CD74HCT4053PWR but operates within a broader single supply range (2V ~ 6V). This part is currently Active and suitable for designs requiring extended supply voltage flexibility.

74HC4053PW,118 (Nexperia) offers the lowest on-state resistance among substitutes at 120Ohm with superior channel matching (6Ohm). This part is Active and provides the widest single supply voltage range (2V ~ 10V), making it suitable for applications requiring extended supply flexibility. However, the operating temperature range is limited to -40°C ~ 125°C, which excludes the lower temperature extreme of the original specification.

74HCT4053PW,118 (NXP) is Active and maintains the same electrical performance as CD74HCT4053PWR but with restricted single supply voltage range (2V ~ 5.5V, 4.5V ~ 10V). Operating temperature is limited to -40°C ~ 125°C.

74LV4053PW,118 (Nexperia) is Active with the lowest channel matching (2Ohm) and highest bandwidth (200MHz). However, leakage current is elevated at 2µA compared to 100nA in the original, and operating temperature is limited to -40°C ~ 125°C. This part is suitable only for applications where low leakage is not a design requirement.

Frequently Asked Questions (FAQ)

Q: Can I directly replace NLAS4053DTG with any of these substitute parts?

A: Direct replacement depends on your circuit's tolerance for on-state resistance variation. The NLAS4053DTG specifies 26Ohm maximum resistance, while substitutes range from 105Ohm to 130Ohm. If your design relies on the low resistance characteristic for signal integrity or power efficiency, substitution requires circuit re-evaluation. If the switch is used in high-impedance signal paths or logic-level switching, substitution is straightforward.

Q: Which substitute maintains the widest operating temperature range?

A: CD74HCT4053PWR and CD74HC4053PWR both support -55°C ~ 125°C, matching the NLAS4053DTG specification. All other substitutes are limited to -40°C ~ 125°C. For applications requiring the full -55°C lower temperature extreme, these two parts are mandatory selections.

Q: What is the significance of the different supply voltage ranges?

A: The NLAS4053DTG operates at 3V ~ 5V (single supply) or ±3V (dual supply). Substitutes offer varying ranges: 74HC4053PW,118 extends to 2V ~ 10V single supply, while CD74HCT4053PWR is restricted to 4.5V ~ 5.5V. Select based on your circuit's actual supply voltage. Broader ranges provide design flexibility for future applications but are unnecessary if your supply is fixed.

Q: Why does on-state resistance vary so significantly between parts?

A: On-state resistance is a fundamental trade-off in analog switch design. Lower resistance (NLAS4053DTG at 26Ohm) provides better signal fidelity but increases power dissipation and die area. Higher resistance substitutes (105Ohm to 130Ohm) are acceptable for most applications where the switch handles logic signals or high-impedance analog signals. Verify your circuit's signal path impedance and bandwidth requirements before substitution.

Q: Are all these parts pin-compatible?

A: Yes. All substitute parts use the 16-TSSOP package with identical pinout. Physical replacement on the PCB requires no layout modification. However, electrical performance differences may require circuit validation.

Q: What is the difference between 74HC4053, 74HCT4053, and 74LV4053 variants?

A: These represent different logic families. 74HC (High-speed CMOS) operates at 2V ~ 10V with standard CMOS thresholds. 74HCT (High-speed CMOS, TTL-compatible) operates at 4.5V ~ 5.5V with TTL-compatible input thresholds, suitable for mixed-signal systems. 74LV (Low-Voltage CMOS) operates at 1V ~ 6V with lower power consumption but higher leakage current. Select based on your system's logic family and supply voltage.

Q: Is the NLAS4053DTG truly obsolete, or can I still source it?

A: The NLAS4053DTG is marked as obsolete by onsemi. While inventory may exist in distribution channels (1127 pieces noted as in stock), long-term availability is not guaranteed. For new designs or production continuity beyond current inventory, substitution is necessary.

Q: Which substitute offers the best overall compatibility?

A: CD74HCT4053PWR provides the best compatibility profile: it maintains the full -55°C ~ 125°C operating range, is currently Active (ensuring future availability), supports dual supply operation (±1V ~ 5V), and carries identical RoHS3 and MSL 1 certifications. The 130Ohm on-state resistance is the primary trade-off, acceptable for most switching applications.

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