DG202BAK/883 Equivalent & Substitute Parts

Part Overview

The DG202BAK/883 is a 4-circuit SPST-NO analog switch IC manufactured by Vishay Siliconix, housed in a 16-CERDIP package. This component features 85Ohm on-state resistance and operates across ±4.5V to ±22V dual supply configurations. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Switch Circuit Type	SPST - NO (Single Pole Single Throw - Normally Open)
Number of Circuits	4
Multiplexer/Demultiplexer Configuration	1:1
On-State Resistance (Max)	85Ohm
Channel-to-Channel Matching (ΔRon)	2Ohm
Voltage - Supply, Dual (V±)	±4.5V ~ 22V
Switch Time - Turn On (Ton)	300ns (Max)
Switch Time - Turn Off (Toff)	200ns (Max)
Charge Injection	1pC
Channel Capacitance (CS(off), CD(off))	5pF, 5pF
Current - Leakage (IS(off)) (Max)	500pA
Crosstalk	-95dB @ 100kHz
Operating Temperature Range	-55°C ~ 125°C (TA)
Package / Case	16-CERDIP (0.300", 7.62mm)
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the DG202BAK/883 is determined by the following critical parameters:

Switch topology: SPST - NO configuration with 4 circuits in 1:1 multiplexer arrangement
On-state resistance: Maximum 85Ohm with channel matching tolerance of 2Ohm
Supply voltage compatibility: Dual supply operation within ±4.5V to ±22V range
Switching performance: Turn-on and turn-off times suitable for the application
Package compatibility: Through-hole mounting in 16-pin DIP-class packages
Leakage and crosstalk specifications: Maximum 500pA leakage and -95dB crosstalk performance

Two substitute parts meet these criteria with varying trade-offs in electrical performance and product status.

Parameter Comparison

Parameter	DG202BAK/883	DG202AK/883B	MAX362CPE+
Manufacturer	Vishay Siliconix	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Product Status	Obsolete	Active	Active
Switch Circuit	SPST - NO	SPST - NO	SPST - NO
Number of Circuits	4	4	4
Multiplexer Configuration	1:1	1:1	1:1
On-State Resistance (Max)	85Ohm	175Ohm	85Ohm
Channel-to-Channel Matching (ΔRon)	2Ohm	Not specified	2Ohm (Max)
Voltage - Supply, Dual (V±)	±4.5V ~ 22V	±4.5V ~ 18V	±4.5V ~ 20V
Switch Time - Ton (Max)	300ns	600ns	250ns
Switch Time - Toff (Max)	200ns	450ns	120ns
Charge Injection	1pC	20pC	5pC
Channel Capacitance (CS(off), CD(off))	5pF, 5pF	5pF, 5pF	4pF, 4pF
Current - Leakage (IS(off)) (Max)	500pA	1nA	500pA
Crosstalk	-95dB @ 100kHz	-90dB @ 100kHz	-100dB @ 1MHz
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	0°C ~ 70°C
Package / Case	16-CERDIP (0.300", 7.62mm)	16-CDIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)
RoHS Status	RoHS non-compliant	RoHS non-compliant	ROHS3 Compliant

Engineering Selection Recommendations

DG202AK/883B is an active equivalent from Analog Devices Inc./Maxim Integrated with identical circuit topology and package footprint. This substitute maintains the same operating temperature range (-55°C to 125°C) and supports the full dual supply voltage range (±4.5V to ±18V). However, the on-state resistance is doubled to 175Ohm maximum, and switching times are degraded (600ns Ton, 450ns Toff versus 300ns and 200ns respectively). Charge injection increases to 20pC. This part is suitable for applications where the higher resistance and slower switching performance are acceptable.

MAX362CPE+ is an active alternative from Analog Devices Inc./Maxim Integrated that matches the original 85Ohm on-state resistance and improves switching performance (250ns Ton, 120ns Toff). This part offers superior crosstalk performance (-100dB @ 1MHz) and achieves ROHS3 compliance. The operating temperature range is restricted to 0°C to 70°C, and dual supply voltage support extends to ±4.5V to ±20V. This substitute is appropriate for commercial-grade applications with standard temperature requirements and where RoHS compliance is mandated.

Both substitutes employ through-hole mounting in 16-pin DIP packages compatible with the original footprint.

Frequently Asked Questions (FAQ)

Q: Can DG202AK/883B directly replace DG202BAK/883 in all applications?

A: DG202AK/883B maintains functional equivalence in circuit topology, package, and temperature range. However, the doubled on-state resistance (175Ohm vs. 85Ohm) and slower switching times (600ns/450ns vs. 300ns/200ns) may impact signal integrity and power dissipation in bandwidth-sensitive or low-impedance applications. Circuit redesign or performance testing is necessary to confirm suitability.

Q: What are the package differences between the three parts?

A: All three parts use 16-pin through-hole DIP packages with 0.300" (7.62mm) body width. DG202BAK/883 uses CERDIP (ceramic DIP), while DG202AK/883B uses CDIP, and MAX362CPE+ uses PDIP (plastic DIP). These packages are mechanically and electrically compatible for PCB mounting.

Q: Which substitute is better for high-frequency applications?

A: MAX362CPE+ offers superior high-frequency performance with faster switching times (250ns Ton, 120ns Toff), lower charge injection (5pC), and better crosstalk isolation (-100dB @ 1MHz). However, its restricted operating temperature range (0°C to 70°C) limits use in extended-temperature environments.

Q: Are there RoHS compliance considerations?

A: DG202BAK/883 and DG202AK/883B are both RoHS non-compliant. MAX362CPE+ achieves ROHS3 compliance, making it the only option for applications requiring RoHS-compliant component sourcing.

Q: What is the impact of supply voltage range differences?

A: DG202BAK/883 supports ±4.5V to ±22V dual supply. DG202AK/883B reduces the upper limit to ±18V, while MAX362CPE+ extends to ±20V. Applications requiring operation above ±20V dual supply must use the original DG202BAK/883 or redesign for lower supply voltages.

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