MAX394CPP

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX394CPP is a precision, low-voltage, quad single-pole/double-throw (SPDT) analog switch in a 20-pin Plastic DIP package. It operates with bipolar supplies from ±2.7V to ±8V or a single supply of +2.7V to +15V. The device features an on-resistance of less than 35Ω at +25°C and guaranteed matching within 2Ω between channels. It offers break-before-make switching with turn-off times under 75ns and turn-on times under 130ns. Quiescent current is less than 1μA. Logic inputs are TTL and CMOS compatible.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Low on-resistance with guaranteed channel-to-channel matching
• Single-supply and bipolar operation capability
• TTL and CMOS logic compatibility
• Rail-to-rail analog signal handling

Analog Switches, Multiplexers, Demultiplexers Applications

• Test Equipment
• Communications Systems
• PBX, PABX
• Heads-Up Displays
• Portable Instruments

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix CPP against official Analog Devices documentation to confirm the 20-pin Plastic DIP package and commercial temperature range. Ensure that any alternative part numbers selected maintain identical pin configurations and electrical characteristics for direct replacement.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when designing systems requiring low-voltage quad SPDT switching with minimal power consumption. Verify that the application environment remains within the specified 0°C to +70°C operating temperature range. Confirm that the logic input voltage levels align with the required TTL or CMOS standards for reliable switching performance.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the MAX394 family of low-voltage analog switches manufactured by Maxim Integrated, now part of Analog Devices. The series includes variants with different temperature ratings and packages, such as the E-series for extended temperatures and WUP for wide SOIC packaging.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The datasheet explicitly states the MAX394 is pin-compatible with the MAX333 and MAX333A. These parts can be considered for substitution if they meet the specific electrical requirements of the design.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the maximum supply voltage difference allowed?

The absolute maximum rating specifies that the voltage difference between V+ and V- must not exceed 17V.

How does the MAX394 handle overvoltage conditions?

Internal diodes clamp signals exceeding the supply rails. For protection against fault voltages without damaging the device, external blocking diodes can be added to limit the forward diode current to the maximum rating.

Is the MAX394 suitable for audio signal routing?

Yes, the applications section lists audio signal routing as a supported use case due to its low distortion and rail-to-rail signal handling capabilities.