PS398ESE IC MUX 8:1 100OHM 16-SOIC Equivalent & Substitute Parts

Part Overview

The PS398ESE is a single-circuit 8:1 multiplexer/demultiplexer switch IC manufactured by Diodes Incorporated in 16-SOIC surface mount packaging. This component features 100Ohm on-state resistance and operates across supply voltages of 3V to 15V (single supply) or ±3V to ±8V (dual supply). The PS398ESE is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Multiplexer/Demultiplexer Circuit Configuration	8:1
Number of Circuits	1
On-State Resistance (Max)	100Ohm
Channel-to-Channel Matching (ΔRon)	6Ohm (Max)
Voltage - Supply, Single (V+)	3V ~ 15V
Voltage - Supply, Dual (V±)	±3V ~ 8V
Switch Time (Ton, Toff) (Max)	150ns, 150ns
Charge Injection	2.8pC
Channel Capacitance (CS(off), CD(off))	3.6pF, 31pF
Current - Leakage (IS(off)) (Max)	50nA
Crosstalk	-92dB @ 100kHz
Mounting Type	Surface Mount
Package / Case	16-SOIC (0.295", 7.50mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the PS398ESE is determined by the following critical parameters: 8:1 multiplexer/demultiplexer configuration, single-circuit topology, 16-SOIC surface mount package, and compatible supply voltage ranges. On-state resistance tolerance, switching speed, and leakage current specifications define functional equivalence within application requirements.

Substitute parts are grouped into three categories based on on-state resistance characteristics:

Category 1: Direct Electrical Equivalents (100Ohm On-State Resistance) Parts with 100Ohm maximum on-state resistance and matching channel-to-channel specifications provide direct functional replacement with identical electrical performance.

Category 2: Higher Resistance Alternatives (200-210Ohm On-State Resistance) Parts with increased on-state resistance maintain 8:1 multiplexer configuration and 16-SOIC packaging but operate with different impedance characteristics suitable for applications tolerant of higher channel resistance.

Category 3: Specialized Alternatives (380Ohm and 1.8kOhm On-State Resistance) Parts with significantly higher on-state resistance serve applications requiring different impedance profiles while maintaining core 8:1 multiplexer functionality and package compatibility.

Parameter Comparison

Part Number	Manufacturer	On-State Resistance (Max)	ΔRon (Max)	V+ Supply	V± Supply	Ton/Toff (Max)	IS(off) (Max)	Crosstalk	Operating Temp	Product Status
PS398ESE	Diodes Incorporated	100Ohm	6Ohm	3V ~ 15V	±3V ~ 8V	150ns, 150ns	50nA	-92dB @ 100kHz	Not specified	Obsolete
MAX398ESE+T	Analog Devices Inc./Maxim Integrated	100Ohm	6Ohm	3V ~ 15V	±3V ~ 8V	150ns, 150ns	100pA	-92dB @ 100kHz	-40°C ~ 85°C	Active
MAX398ESE+	Analog Devices Inc./Maxim Integrated	100Ohm	6Ohm	3V ~ 15V	±3V ~ 8V	150ns, 150ns	100pA	-92dB @ 100kHz	-40°C ~ 85°C	Active
MAX398CSE+T	Analog Devices Inc./Maxim Integrated	100Ohm	6Ohm	3V ~ 15V	±3V ~ 8V	150ns, 150ns	100pA	-92dB @ 100kHz	0°C ~ 70°C	Active
MAX398CSE+	Analog Devices Inc./Maxim Integrated	100Ohm	6Ohm	3V ~ 15V	±3V ~ 8V	150ns, 150ns	100pA	-92dB @ 100kHz	0°C ~ 70°C	Active
ADG1208YRZ	Analog Devices Inc.	200Ohm	4.6Ohm	5V ~ 16.5V	±5V ~ 16.5V	95ns, 100ns	100pA	-85dB @ 1MHz	-40°C ~ 125°C	Active
ADG1208YRZ-REEL7	Analog Devices Inc.	200Ohm	4.6Ohm	5V ~ 16.5V	±5V ~ 16.5V	95ns, 100ns	100pA	-85dB @ 1MHz	-40°C ~ 125°C	Active
ADG1308BRZ-REEL7	Analog Devices Inc.	210Ohm	5Ohm	5V ~ 16.5V	±5V ~ 16.5V	100ns, 100ns	1nA	-80dB @ 1MHz	-40°C ~ 105°C	Active
DG508BEY-T1-E3	Vishay Siliconix	380Ohm	10Ohm	12V ~ 44V	±5V ~ 20V	250ns, 240ns	1nA	-88dB @ 1MHz	-40°C ~ 125°C	Active
HI9P0548-5Z	Renesas Electronics Corporation	1.8kOhm	126Ohm	Not specified	±15V	300ns, 300ns (Typ)	30pA (Typ)	Not specified	0°C ~ 75°C	Active
HI9P0548-5Z96	Renesas Electronics Corporation	1.8kOhm	126Ohm	Not specified	±15V	300ns, 300ns (Typ)	30pA (Typ)	Not specified	0°C ~ 75°C	Active

Engineering Selection Recommendations

Direct Replacement (100Ohm Category): The MAX398ESE+T, MAX398ESE+, MAX398CSE+T, and MAX398CSE+ from Analog Devices Inc./Maxim Integrated provide direct electrical equivalence to the PS398ESE. All four parts maintain identical on-state resistance, channel-to-channel matching, supply voltage ranges, switching times, and crosstalk specifications. These parts are active products with ROHS3 compliance and MSL 1 rating. Selection between these variants depends on packaging requirements (Tube vs. Tape & Reel) and operating temperature range. The MAX398ESE variants support -40°C to 85°C operation, while MAX398CSE variants operate from 0°C to 70°C.

Higher Resistance Alternatives (200-210Ohm Category): The ADG1208YRZ, ADG1208YRZ-REEL7, and ADG1308BRZ-REEL7 from Analog Devices Inc. maintain 8:1 multiplexer configuration and 16-SOIC packaging with increased on-state resistance. These parts feature extended operating temperature ranges (-40°C to 125°C for ADG1208 variants, -40°C to 105°C for ADG1308) and improved switching performance. Supply voltage ranges are higher (5V to 16.5V single supply, ±5V to ±16.5V dual supply). These alternatives are suitable for applications where higher channel impedance is acceptable and extended temperature operation is required.

Specialized High-Impedance Alternatives: The DG508BEY-T1-E3 from Vishay Siliconix and HI9P0548-5Z/HI9P0548-5Z96 from Renesas Electronics Corporation serve applications requiring significantly different impedance characteristics. The DG508BEY-T1-E3 operates with 380Ohm on-state resistance and supports higher supply voltages (12V to 44V single supply). The HI9P0548 variants feature 1.8kOhm on-state resistance with dual supply operation at ±15V. These parts are active products with ROHS3 compliance but operate in narrower temperature ranges (0°C to 75°C for HI9P0548 variants).

All substitute parts maintain ROHS3 compliance and are classified as active products, ensuring long-term availability and manufacturing support.

Frequently Asked Questions (FAQ)

Q: Can MAX398ESE+T directly replace PS398ESE in all applications? A: The MAX398ESE+T provides direct electrical equivalence in on-state resistance (100Ohm), channel-to-channel matching (6Ohm max), supply voltage ranges (3V to 15V single, ±3V to ±8V dual), and switching times (150ns). Both parts are 16-SOIC surface mount packages. The primary difference is product status: PS398ESE is obsolete while MAX398ESE+T is active. Operating temperature range differs (MAX398ESE+T: -40°C to 85°C). Substitution is valid when application temperature requirements fall within the MAX398ESE+T specification.

Q: What is the difference between MAX398ESE+ and MAX398ESE+T? A: Both parts are electrically identical with 100Ohm on-state resistance and identical electrical specifications. The difference is packaging: MAX398ESE+ is supplied in Tube packaging, while MAX398ESE+T is supplied in Tape & Reel (TR) format. Selection depends on production assembly requirements and inventory management preferences.

Q: When should I use ADG1208YRZ instead of MAX398ESE+T? A: The ADG1208YRZ features 200Ohm on-state resistance compared to 100Ohm for MAX398ESE+T. Use ADG1208YRZ when application circuit design tolerates higher channel impedance. ADG1208YRZ offers advantages including faster switching times (95ns/100ns vs. 150ns), extended operating temperature range (-40°C to 125°C), and higher supply voltage capability (5V to 16.5V single supply). These characteristics make ADG1208YRZ suitable for high-speed applications and extended temperature environments.

Q: Are all substitute parts compatible with 16-SOIC PCB footprints? A: All substitute parts listed use 16-SOIC surface mount packaging. However, package dimensions vary: PS398ESE uses 16-SOIC (0.295", 7.50mm width), while most substitutes use 16-SOIC (0.154", 3.90mm width). Verify PCB footprint compatibility before substitution. The narrower 3.90mm width package is standard for modern 16-SOIC implementations.

Q: What is the significance of the ΔRon (Channel-to-Channel Matching) parameter? A: ΔRon specifies the maximum variation in on-state resistance between different channels within the same IC. PS398ESE specifies 6Ohm maximum matching. Lower ΔRon values (such as 4.6Ohm for ADG1208 variants) indicate better channel uniformity, which is critical for applications requiring precise signal routing or low distortion across multiple channels.

Q: Can HI9P0548-5Z replace PS398ESE in low-voltage applications? A: No. HI9P0548-5Z operates exclusively with dual supply at ±15V and does not support single supply operation (3V to 15V) required by PS398ESE. Additionally, HI9P0548-5Z features 1.8kOhm on-state resistance, significantly higher than PS398ESE's 100Ohm specification. This part is suitable only for applications specifically designed for ±15V dual supply and high-impedance switching requirements.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity? A: MSL 1 indicates the component has unlimited shelf life without moisture baking requirements. Parts can be stored and handled under standard conditions without special moisture control procedures. All substitute parts listed maintain MSL 1 rating except HI9P0548-5Z and HI9P0548-5Z96, which specify MSL 3 (168 Hours), requiring moisture baking after 168 hours of exposure to ambient conditions.

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