NLAS44599DTG Equivalent & Substitute Parts

Part Overview

The NLAS44599DTG is a dual DPDT (Double Pole Double Throw) analog switch IC manufactured by onsemi, designed for signal routing and multiplexing applications in interface circuits. This component features a 2:2 multiplexer/demultiplexer configuration with 25Ohm on-state resistance and operates across a 2V to 5.5V single supply voltage range. The device is classified as obsolete, making identification of functionally compatible alternatives essential for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Switch Circuit Configuration	DPDT
Multiplexer/Demultiplexer Circuit	2:2
Number of Circuits	2
On-State Resistance (Max)	25Ohm
Voltage - Supply, Single (V+)	2V ~ 5.5V
Switch Time (Ton, Toff) (Max)	14ns, 5ns
-3dB Bandwidth	175MHz
Operating Temperature	-55°C ~ 125°C
Package / Case	16-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the NLAS44599DTG is determined by the following critical parameters:

Switch Circuit Type: Must be DPDT configuration
Multiplexer Circuit: Must support 2:2 multiplexing
Package Compatibility: Must use 16-TSSOP surface mount package with identical 0.173" (4.40mm) width
Supply Voltage Range: Must encompass or exceed the 2V to 5.5V operating range
On-State Resistance: Substitute devices must maintain electrical performance within acceptable limits for signal integrity
Thermal Operating Range: Must support -55°C to 125°C or equivalent industrial temperature specifications

The MAX4701EUE+ and MAX4701EUE+T devices from Analog Devices Inc./Maxim Integrated meet these core substitution criteria. Both variants maintain identical electrical specifications and package geometry, differing only in packaging format (Tube versus Tape & Reel).

Parameter Comparison

Parameter	NLAS44599DTG	MAX4701EUE+	MAX4701EUE+T
Manufacturer	onsemi	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Switch Circuit	DPDT	DPDT	DPDT
Multiplexer/Demultiplexer Circuit	2:2	2:2	2:2
Number of Circuits	2	2	2
On-State Resistance (Max)	25Ohm	75Ohm	75Ohm
Voltage - Supply, Single (V+)	2V ~ 5.5V	1.8V ~ 5.5V	1.8V ~ 5.5V
Switch Time Ton (Max)	14ns	35ns	35ns
Switch Time Toff (Max)	5ns	20ns	20ns
-3dB Bandwidth	175MHz	250MHz	250MHz
Operating Temperature	-55°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active
Packaging Format	-	Tube	Tape & Reel (TR)

Engineering Selection Recommendations

The MAX4701EUE+ and MAX4701EUE+T represent active, production-supported alternatives to the obsolete NLAS44599DTG. Both devices maintain identical electrical specifications and are manufactured by Analog Devices Inc./Maxim Integrated, an established supplier with ROHS3 compliance and REACH unaffected status.

Selection between MAX4701EUE+ and MAX4701EUE+T depends on procurement and assembly requirements:

MAX4701EUE+ (Tube packaging): Suitable for lower-volume applications or manual assembly processes
MAX4701EUE+T (Tape & Reel packaging): Optimized for high-volume automated assembly and pick-and-place operations

Both variants are electrically interchangeable and pin-compatible with the NLAS44599DTG in 16-TSSOP package format. The extended supply voltage range (1.8V minimum) of the MAX4701 series provides additional design flexibility for lower-voltage applications.

Frequently Asked Questions (FAQ)

Q: Can MAX4701EUE+ and MAX4701EUE+T be used interchangeably in the same circuit?

A: Yes. Both devices are electrically identical and pin-compatible. The difference is packaging format only. MAX4701EUE+ comes in Tube packaging, while MAX4701EUE+T comes in Tape & Reel format. Selection depends on assembly method and procurement volume.

Q: What is the primary difference between NLAS44599DTG and MAX4701 devices?

A: The main differences are on-state resistance (25Ohm versus 75Ohm), switch timing characteristics, and operating temperature range. The NLAS44599DTG offers lower on-state resistance and extended temperature range (-55°C to 125°C), while MAX4701 devices provide lower leakage current and higher bandwidth. Both maintain identical DPDT 2:2 configuration and 16-TSSOP package geometry.

Q: Is the 16-TSSOP package footprint identical between NLAS44599DTG and MAX4701 series?

A: Yes. Both use 16-TSSOP package with 0.173" (4.40mm) width. PCB footprints are compatible without modification.

Q: What compliance certifications apply to MAX4701EUE+ and MAX4701EUE+T?

A: Both devices are ROHS3 compliant and REACH unaffected. Moisture sensitivity level is 1 (Unlimited). ECCN classification is EAR99, and HTSUS code is 8542.39.0001.

Q: Can MAX4701 devices operate at 2V supply voltage like NLAS44599DTG?

A: MAX4701 devices specify a minimum supply voltage of 1.8V, which is lower than the NLAS44599DTG minimum of 2V. This provides additional design margin for low-voltage applications.

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