MAX336CPI 16:1 Analog Multiplexer - Equivalent & Substitute Parts

Part Overview

The MAX336CPI is a 16:1 analog multiplexer IC manufactured by Analog Devices Inc./Maxim Integrated, designed for signal routing and switching applications in interface circuits. This device features a single 16:1 multiplexer configuration with 400Ω on-state resistance and operates across a wide supply voltage range. The MAX336CPI is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Multiplexer Configuration	16:1
Number of Circuits	1
On-State Resistance (Max)	400Ω
Channel-to-Channel Matching (ΔRon)	5Ω
Supply Voltage - Single (V+)	4.5V ~ 20V
Supply Voltage - Dual (V±)	±4.5V ~ 20V
Switch Time (Ton/Toff)	500ns / 500ns
Charge Injection	4.6pC
Channel Capacitance (CS(off) / CD(off))	2pF / 20pF
Leakage Current (IS(off)) Max	20pA
Crosstalk	-86dB @ 100kHz
Operating Temperature	0°C ~ 70°C
Package / Case	28-DIP (0.600", 15.24mm)
Mounting Type	Through Hole

Substitute Part Grouping Explanation

Substitution compatibility for the MAX336CPI is determined by the following critical parameters:

Primary Compatibility Criteria:

Multiplexer configuration: 16:1
Number of circuits: 1
Package type: 28-DIP
Mounting type: Through Hole
On-state resistance: 400Ω (or lower for improved performance)
Supply voltage compatibility: Single supply 4.5V ~ 20V or dual supply ±4.5V ~ 20V

Substitute Parts Identified:

MAX336CPI+ - Direct functional equivalent with enhanced supply voltage range (4.5V ~ 30V single supply) and active product status. Identical electrical characteristics with improved compliance.
ADG406BNZ - Manufacturer-recommended alternative with superior electrical performance characteristics. Lower on-state resistance (80Ω), faster switching times, and extended operating temperature range (-40°C ~ 85°C). Requires verification of supply voltage requirements (12V single / ±15V dual).

Parameter Comparison

Parameter	MAX336CPI	MAX336CPI+	ADG406BNZ
Multiplexer Configuration	16:1	16:1	16:1
Number of Circuits	1	1	1
On-State Resistance (Max)	400Ω	400Ω	80Ω
Channel-to-Channel Matching (ΔRon)	5Ω	5Ω	4Ω
Supply Voltage - Single (V+)	4.5V ~ 20V	4.5V ~ 30V	12V
Supply Voltage - Dual (V±)	±4.5V ~ 20V	±4.5V ~ 20V	±15V
Switch Time (Ton/Toff)	500ns / 500ns	500ns / 500ns	160ns / 150ns
Charge Injection	4.6pC	4.6pC	8pC
Channel Capacitance (CS(off) / CD(off))	2pF / 20pF	2pF / 20pF	5pF / 50pF
Leakage Current (IS(off)) Max	20pA	20pA	500pA
Crosstalk	-86dB @ 100kHz	-86dB @ 100kHz	-85dB @ 100kHz
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 85°C
Package / Case	28-DIP	28-DIP	28-DIP
Product Status	Obsolete	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

MAX336CPI+ Selection: Use MAX336CPI+ for direct replacement in existing designs. This part maintains identical electrical performance to the original MAX336CPI while offering active product status and ROHS3 compliance. The extended single supply voltage range (4.5V ~ 30V) provides additional design flexibility. Packaging and pinout are identical, enabling drop-in substitution.

ADG406BNZ Selection: Select ADG406BNZ when design specifications permit the use of fixed supply voltages (12V single / ±15V dual). This part delivers superior performance characteristics including lower on-state resistance (80Ω), faster switching times (160ns/150ns), and extended operating temperature range (-40°C ~ 85°C). ROHS3 compliance and active product status ensure long-term availability. Note that higher leakage current (500pA) and increased channel capacitance may impact applications requiring extremely low power consumption or high-frequency operation.

Both substitute parts are ROHS3 compliant and maintain active product status, ensuring regulatory compliance and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can MAX336CPI+ be used as a direct replacement for MAX336CPI? A: Yes. MAX336CPI+ is functionally equivalent with identical electrical characteristics and pinout. The primary differences are active product status and ROHS3 compliance. Packaging is 28-DIP in both cases.

Q: What are the key differences between MAX336CPI+ and ADG406BNZ? A: The primary differences are on-state resistance (400Ω vs. 80Ω), switching speed (500ns vs. 160ns/150ns), and supply voltage requirements (4.5V~30V single vs. 12V fixed). ADG406BNZ offers superior performance but requires fixed supply voltages. Both maintain 16:1 multiplexer configuration and 28-DIP packaging.

Q: Is ADG406BNZ compatible with designs using variable supply voltages between 4.5V and 20V? A: No. ADG406BNZ requires fixed supply voltages (12V single or ±15V dual). If your design uses variable supply voltages within the 4.5V ~ 20V range, MAX336CPI+ is the appropriate substitute.

Q: Are all substitute parts available in 28-DIP packaging? A: Yes. MAX336CPI+, ADG406BNZ, and the original MAX336CPI are all available in 28-DIP (0.600", 15.24mm) through-hole packaging, enabling direct PCB compatibility.

Q: What is the impact of ADG406BNZ's higher leakage current (500pA vs. 20pA)? A: The 25-fold increase in leakage current may be significant in low-power or high-impedance applications. For standard signal routing applications, this difference is typically negligible. Evaluate based on specific circuit requirements.

Q: Are both substitute parts RoHS compliant? A: Yes. Both MAX336CPI+ and ADG406BNZ are ROHS3 compliant. The original MAX336CPI is RoHS non-compliant, making substitution necessary for applications requiring regulatory compliance.

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