MAX382EPN

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX382EPN is a low-voltage CMOS 8-channel multiplexer with latchable digital inputs, manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single supply from +2.7V to +16.5V or dual supplies from ±3V to ±8V. The device features a maximum on-resistance of 100Ω and an on-resistance matching between channels of 4Ω max. Supply current is less than 1µA per rail. It includes ESD protection exceeding 2000V and off-leakage below 2.5nA at +85°C. The component is housed in an 18-pin Plastic DIP package and supports an operating temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Pin-compatible with industry-standard DG428/DG429, DG528/DG529, and MAX368/MAX369 devices.
• Supports both single-supply (+2.7V to +16.5V) and bipolar supply (±3V to ±8V) operation.
• Features TTL/CMOS-logic compatible inputs with latchable address functionality.
• Provides guaranteed low charge injection and high off-isolation for signal integrity.

Analog Switches, Multiplexers, Demultiplexers Applications

• Battery-operated systems
• Audio signal routing
• Low-voltage data-acquisition systems
• Sample-and-hold circuits
• Automatic test equipment

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'PN' indicates the 18-pin Plastic DIP package variant. Confirm the 'E' designation corresponds to the extended industrial temperature range of -40°C to +85°C. Ensure compatibility with existing PCB footprints designed for standard 18-DIP packages before procurement.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this part when pin compatibility with legacy DG428/DG429 designs is required. Choose the MAX382EPN over the MAX384EPN if an 8-channel single-ended configuration is needed rather than a dual 4-channel setup. Verify that the analog signal range fits within the available supply voltage rails.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the MAX382/MAX384 family of low-voltage CMOS multiplexers. It serves as a direct replacement for older discrete switch solutions while offering lower power consumption and integrated latching logic. The EPN suffix specifically identifies the plastic DIP package version intended for through-hole mounting applications.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct pin-compatible replacements include the DG428, DG429, DG528, DG529, MAX368, and MAX369. Verify that the substitute device meets the required on-resistance flatness and leakage specifications for the specific application environment.

Analog Switches, Multiplexers, Demultiplexers FAQ

How does the latchable input feature benefit system design?

The latchable inputs allow the microprocessor to strobe the address lines via WR and RS signals, eliminating the need for constant address outputs to hold a channel selection, thereby saving I/O pins.

What is the recommended power-up sequence?

Proper sequencing requires V+ to be applied first, followed by V-, and then the logic inputs, NO, or COM terminals to prevent damage from overvoltage conditions.

Can the device operate with unbalanced supplies?

Yes, the MAX382EPN can function with unbalanced supplies, such as +10V and -5V, provided the difference between V+ and V- does not exceed 17V.