MAX4547CSE+

Analog Switches - Special Purpose Overview

The MAX4547CSE+ is a dual single-pole/double-throw (SPDT) low-voltage T-switch designed for RF and video signal routing in 50Ω and 75Ω systems. It operates with dual supplies from ±2.7V to ±6V or a single supply between +2.7V and +12V. The device features a maximum on-resistance of 20Ω, a -3dB bandwidth of 300MHz, and an off-isolation of -82dB at 10MHz. It supports rail-to-rail analog signals in either direction and includes TTL/CMOS-compatible logic inputs. The component is housed in a 16-pin Narrow SOIC package and functions within a temperature range of 0°C to +70°C.

Analog Switches - Special Purpose Feature Summary

• Bidirectional switching capability for high-frequency RF and video signals up to 300MHz
• T-switch architecture providing excellent high-frequency isolation and minimal crosstalk
• Low on-resistance with tight matching and flatness specifications across the signal range
• Compatible with standard TTL and CMOS logic levels when powered by a single +5V supply

Analog Switches - Special Purpose Applications

• RF switching in communication systems
• Video signal routing and multiplexing
• High-speed data acquisition front ends
• Automated test equipment (ATE)
• Networking hardware interfaces

Analog Switches - Special Purpose Procurement Notes

Verify that the ordering suffix 'C' corresponds to the commercial temperature range of 0°C to +70°C. Confirm the 'E' indicates the 16-pin Narrow SOIC surface-mount package. Ensure the '+' suffix denotes compliance with current environmental standards. Cross-reference the manufacturer's latest datasheet revision to confirm pinout consistency and absolute maximum ratings before integration.

Analog Switches - Special Purpose Selection Notes

Select this component for applications requiring bidirectional signal flow and high off-isolation in low-voltage environments. The dual SPDT configuration allows for flexible signal path management compared to single-channel alternatives. Consider the specific on-resistance requirements under your operating voltage, as performance degrades significantly below the optimized ±5V supply condition. Ensure board layout supports the required ground plane for optimal high-frequency performance.

Analog Switches - Special Purpose Part Context

The MAX4547 is part of the MAX4545/MAX4546/MAX4547 family of low-voltage T-switches manufactured by Analog Devices Inc./Maxim Integrated. While the MAX4545 contains four SPST switches and the MAX4546 contains two dual SPST switches, the MAX4547 specifically provides two SPDT switches. All members share the same core T-switch technology and electrical characteristics, differing primarily in channel count and switch type.

Analog Switches - Special Purpose Replacement Considerations

Public confirmed substitute part numbers: MAX4547ESE+, MAX4547EEE+