MAX4649EKA-T

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4649EKA+T is a single-channel, single-pole double-throw (SPDT) analog switch manufactured by Analog Devices Inc./Maxim Integrated. It operates with a single supply voltage ranging from +9V to +36V or dual supplies of ±4.5V to ±20V. The device features a maximum on-resistance of 45Ω and ensures flatness within the specified signal range. Key electrical parameters include a maximum leakage current of 2nA at +25°C, charge injection of 2pC, and channel capacitance of 6pF. Switching times are limited to 130ns for both turn-on and turn-off. The component supports rail-to-rail signal handling and is housed in an SOT-23-8 surface-mount package.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Supports rail-to-rail analog signal processing without requiring a separate VL logic power supply.
• Provides TTL and CMOS compatible control inputs for straightforward interface integration.
• Ensures low crosstalk and high isolation performance at 1MHz frequencies.

Analog Switches, Multiplexers, Demultiplexers Applications

• Telecommunications systems including PBX and PABX switching
• Test and measurement equipment signal routing
• Audio system signal path management

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the exact part number suffix against official manufacturer documentation, as variations such as +T, TR, CT, or DKR indicate specific packaging formats like tape and reel or cut tape. Confirm RoHS compliance status and lead times directly with authorized distributors, as availability may vary by region and manufacturing batch. Ensure the selected packaging aligns with automated assembly requirements.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when high voltage operation up to 36V single supply is required compared to standard low-voltage switches. Consider the 45Ω on-resistance and 130ns switching speed for applications where these parameters meet system bandwidth and loss constraints. Verify that the SOT-23-8 package dimensions fit the available PCB real estate and thermal management strategy.

Analog Switches, Multiplexers, Demultiplexers Part Context

This device belongs to the MAX4649 series of high-voltage analog switches. It is distinct from lower-voltage counterparts like the MAX4644 or MAX4643, which operate at significantly lower supply voltages. The EKA+T designation specifies the industrial temperature range and the specific SOT-23-8 package configuration offered by Maxim Integrated.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Publicly confirmed substitute part numbers are not explicitly listed in the provided source material. Engineers should consult official cross-reference guides or contact Analog Devices technical support for verified alternatives that match the high-voltage SPDT specification and pinout compatibility.