NLAS1053US Equivalent & Substitute Parts

Part Overview

The NLAS1053US is a single-circuit SPDT (Single Pole Double Throw) analog switch IC manufactured by onsemi, designed for 2:1 multiplexing applications. This component features a 16Ohm on-state resistance and operates across a 2V to 5.5V supply voltage range, making it suitable for low-voltage signal routing and switching applications. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.

Key Parameters

Parameter	Value
Switch Circuit Type	SPDT
Multiplexer/Demultiplexer Configuration	2:1
Number of Circuits	1
On-State Resistance (Max)	16Ohm
Channel-to-Channel Matching (ΔRon)	2Ohm
Supply Voltage Range	2V ~ 5.5V
Switch Time (Ton, Toff)	8ns, 8ns
-3dB Bandwidth	200MHz
Charge Injection	3pC
Channel Capacitance (CS(off), CD(off))	10pF, 10pF
Leakage Current (IS(off)) Max	100nA
Operating Temperature Range	-55°C ~ 125°C
Package Type	8-VFSOP (0.091", 2.30mm Width)
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution eligibility for the NLAS1053US is determined by strict equivalence across the following critical parameters:

Switch circuit topology (SPDT configuration)
Multiplexer function (2:1 switching capability)
Single-circuit design
On-state resistance specification (16Ohm maximum)
Channel matching tolerance (2Ohm maximum)
Supply voltage compatibility (2V ~ 5.5V range)
Switching speed performance (8ns maximum for Ton and Toff)
Bandwidth capability (200MHz minimum)
Charge injection specification (3pC maximum)
Channel capacitance values (10pF maximum for both CS(off) and CD(off))
Leakage current limit (100nA maximum)
Operating temperature range (-55°C ~ 125°C)
Package form factor (8-VFSOP surface mount)

Only components meeting all these electrical and mechanical specifications qualify as direct substitutes.

Parameter Comparison

Parameter	NLAS1053US	NLAS1053USG
Manufacturer	onsemi	onsemi
Switch Circuit	SPDT	SPDT
Multiplexer Configuration	2:1	2:1
Number of Circuits	1	1
On-State Resistance (Max)	16Ohm	16Ohm
Channel-to-Channel Matching (ΔRon)	2Ohm	2Ohm
Supply Voltage Range	2V ~ 5.5V	2V ~ 5.5V
Switch Time (Ton, Toff)	8ns, 8ns	8ns, 8ns
-3dB Bandwidth	200MHz	200MHz
Charge Injection	3pC	3pC
Channel Capacitance (CS(off), CD(off))	10pF, 10pF	10pF, 10pF
Leakage Current (IS(off)) Max	100nA	100nA
Operating Temperature Range	-55°C ~ 125°C	-55°C ~ 125°C
Package / Case	8-VFSOP (0.091", 2.30mm Width)	8-VFSOP (0.091", 2.30mm Width)
Mounting Type	Surface Mount	Surface Mount
Product Status	Obsolete	Obsolete
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The NLAS1053USG represents a direct electrical and mechanical equivalent to the NLAS1053US, with identical performance specifications across all switching, timing, and signal integrity parameters. The primary distinction lies in regulatory compliance: NLAS1053USG carries ROHS3 certification, whereas the original NLAS1053US is RoHS non-compliant. Both components maintain identical moisture sensitivity levels and REACH status.

For applications subject to RoHS3 regulatory requirements or environmental compliance mandates, NLAS1053USG is the appropriate selection. For legacy systems or applications without RoHS compliance constraints, either part satisfies the electrical requirements identically. Both parts remain classified as obsolete, indicating limited future availability through standard distribution channels.

Frequently Asked Questions (FAQ)

Q: Can NLAS1053USG be used as a direct replacement for NLAS1053US in existing designs?

A: Yes. NLAS1053USG is electrically and mechanically identical to NLAS1053US across all specified parameters, including on-state resistance, switching speed, bandwidth, and package form factor. No circuit modifications are required.

Q: What is the significance of the RoHS3 compliance difference?

A: NLAS1053USG meets RoHS3 environmental standards, restricting hazardous substances in electronic components. NLAS1053US does not carry this certification. Selection depends on regulatory requirements applicable to the end application and market region.

Q: Are both parts available for new procurement?

A: Both NLAS1053US and NLAS1053USG are classified as obsolete. Procurement should prioritize available inventory through authorized distributors. NLAS1053USG shows higher current inventory levels (9111 units versus 2100 units for NLAS1053US).

Q: Does the package form factor remain identical between these parts?

A: Yes. Both components use the 8-VFSOP surface mount package with 0.091" height and 2.30mm width. PCB footprints and assembly processes are identical.

Q: What parameters must remain constant when selecting a substitute for NLAS1053US?

A: Critical parameters include SPDT switch topology, 2:1 multiplexer configuration, 16Ohm on-state resistance, 2Ohm channel matching, 2V to 5.5V supply range, 8ns switching time, 200MHz bandwidth, 3pC charge injection, 10pF channel capacitance, 100nA maximum leakage, -55°C to 125°C operating range, and 8-VFSOP package type. Deviation in any of these specifications disqualifies a component as a direct substitute.

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