DG184AP/883 Equivalent & Substitute Parts

Part Overview

The DG184AP/883 is a 2-circuit DPST-NO analog switch IC manufactured by Vishay Siliconix, designed for signal routing and multiplexing applications. This component features a 30Ohm on-state resistance and operates across a dual supply voltage range of ±15V. The device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Switch Circuit Type	DPST - NO (Double Pole Single Throw - Normally Open)
Multiplexer/Demultiplexer Configuration	2:1
Number of Circuits	2
On-State Resistance (Max)	30Ohm
Dual Supply Voltage (V±)	±15V
Switch Time - Turn On (Ton)	150ns
Switch Time - Turn Off (Toff)	130ns
Channel Capacitance (CS(off), CD(off))	9pF, 6pF
Current - Leakage (IS(off)) Max	1nA
Operating Temperature Range	-55°C to 125°C
Package Type	16-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
RoHS Status	RoHS non-compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the DG184AP/883 is determined by the following critical parameters:

Switch Circuit Configuration: Must be DPST - NO topology
Multiplexer Ratio: Must support 2:1 multiplexing function
Number of Circuits: Must provide 2 independent circuits
Package Form Factor: Must be 16-DIP (0.300", 7.62mm) for mechanical compatibility
Mounting Technology: Must support through-hole installation
On-State Resistance: Substitute resistance must not exceed application requirements; 30Ohm baseline with tolerance for up to 35Ohm in compatible alternatives
Supply Voltage Compatibility: Dual supply operation (V±) must encompass or be compatible with ±15V operation
Switch Timing: Turn-on and turn-off times must meet or exceed performance specifications
Leakage Current: Must maintain acceptable off-state leakage characteristics

The MAX305CPE+ from Analog Devices Inc./Maxim Integrated qualifies as a direct substitute based on matching switch circuit type, multiplexer configuration, circuit count, package geometry, and mounting method.

Parameter Comparison

Parameter	DG184AP/883 (Main Part)	MAX305CPE+ (Substitute)
Manufacturer	Vishay Siliconix	Analog Devices Inc./Maxim Integrated
Switch Circuit Type	DPST - NO	DPST - NO
Multiplexer Configuration	2:1	2:1
Number of Circuits	2	2
On-State Resistance (Max)	30Ohm	35Ohm
Dual Supply Voltage (V±)	±15V	±4.5V to ±20V
Switch Time - Turn On (Ton)	150ns	150ns
Switch Time - Turn Off (Toff)	130ns	100ns
Channel Capacitance (CS(off), CD(off))	9pF, 6pF	12pF, 12pF
Current - Leakage (IS(off)) Max	1nA	500pA
Operating Temperature Range	-55°C to 125°C	0°C to 70°C
Package Type	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)
Mounting Type	Through Hole	Through Hole
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant

Engineering Selection Recommendations

The MAX305CPE+ is an active product with ROHS3 compliance, providing a direct functional replacement for the obsolete DG184AP/883. Both devices share identical switch circuit topology, multiplexer configuration, circuit count, and package geometry.

Key considerations for selection:

Product Availability: The MAX305CPE+ is in active production status, ensuring long-term supply continuity compared to the obsolete DG184AP/883.
Regulatory Compliance: The MAX305CPE+ meets ROHS3 requirements, whereas the DG184AP/883 is RoHS non-compliant. Systems requiring RoHS compliance must transition to the MAX305CPE+.
On-State Resistance: The MAX305CPE+ specifies 35Ohm maximum resistance versus 30Ohm for the DG184AP/883. Applications with strict impedance requirements must evaluate this 5Ohm differential.
Supply Voltage Range: The MAX305CPE+ operates within ±4.5V to ±20V, encompassing the DG184AP/883 ±15V requirement.
Operating Temperature: The DG184AP/883 supports -55°C to 125°C operation, while the MAX305CPE+ is rated 0°C to 70°C. Applications requiring extended low-temperature operation below 0°C cannot use the MAX305CPE+ as a direct substitute.
Leakage Current: The MAX305CPE+ exhibits superior leakage performance at 500pA maximum versus 1nA for the DG184AP/883.

Frequently Asked Questions (FAQ)

Q: Can the MAX305CPE+ directly replace the DG184AP/883 in existing designs?

A: The MAX305CPE+ provides functional equivalence for applications operating within 0°C to 70°C temperature range and where the 35Ohm on-state resistance is acceptable. Designs requiring the full -55°C to 125°C operating range of the DG184AP/883 require thermal performance evaluation before substitution.

Q: Are the 16-DIP packages mechanically identical?

A: Both the DG184AP/883 and MAX305CPE+ use 16-DIP (0.300", 7.62mm) packages with through-hole mounting. Pin-to-pin compatibility is maintained, allowing direct PCB footprint reuse.

Q: What is the significance of the 5Ohm on-state resistance difference?

A: The MAX305CPE+ specifies 35Ohm maximum on-state resistance compared to 30Ohm for the DG184AP/883. In signal routing applications with low-impedance sources or loads, this difference may introduce measurable signal attenuation. Circuit simulation or bench testing is appropriate for applications with tight impedance budgets.

Q: Does the MAX305CPE+ support the same supply voltage as the DG184AP/883?

A: The MAX305CPE+ dual supply range of ±4.5V to ±20V encompasses the DG184AP/883 ±15V specification. The substitute part is fully compatible with existing ±15V supply designs.

Q: What compliance advantages does the MAX305CPE+ offer?

A: The MAX305CPE+ is ROHS3 compliant and carries active product status, whereas the DG184AP/883 is RoHS non-compliant and obsolete. New designs and systems subject to RoHS regulations must use the MAX305CPE+ or equivalent compliant alternatives.

Q: How do the switch timing characteristics compare?

A: Both parts specify identical 150ns turn-on time. The MAX305CPE+ provides faster turn-off at 100ns versus 130ns for the DG184AP/883, representing improved switching performance.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message