MAX4567CEE

Analog Switches - Special Purpose Overview

The MAX4567CEE is a dual, low-voltage, bidirectional RF/Video Switch IC manufactured by Analog Devices Inc./Maxim Integrated. It contains two single-pole/double-throw (SPDT) switches constructed in a T-switch configuration to ensure high-frequency isolation. The device operates with dual power supplies ranging from ±2.7V to ±6V or a single supply between +2.7V and +12V. Key electrical parameters include a maximum on-resistance of 60Ω at ±5V, a -3dB bandwidth of 350MHz, and off-isolation of -83dB at 10MHz. The component supports an operating temperature range of 0°C to +70°C and is housed in a 16-pin QSOP package.

Analog Switches - Special Purpose Feature Summary

• T-switch architecture providing superior high-frequency signal isolation and crosstalk reduction
• Bidirectional analog signal handling with rail-to-rail capability across specified supply ranges
• TTL and CMOS logic compatibility through defined input voltage thresholds

Analog Switches - Special Purpose Applications

• RF switching in communication systems
• Video signal routing and multiplexing
• High-speed data acquisition systems
• Test and measurement equipment
• Automated test equipment (ATE)

Analog Switches - Special Purpose Procurement Notes

Verify the specific suffix 'CEE' against the manufacturer's current ordering guide to confirm the commercial temperature grade and QSOP package availability. Cross-reference the datasheet revision date to ensure compliance with updated absolute maximum ratings and grounding recommendations before finalizing procurement specifications.

Analog Switches - Special Purpose Selection Notes

Select this component for applications requiring dual SPDT switching within a low-voltage environment. Ensure the design accommodates the separate GND_ pins for each switch to maintain optimal high-frequency performance. Verify that the system supply voltages remain within the ±6V differential limit to prevent damage to the internal ESD protection diodes.

Analog Switches - Special Purpose Part Context

This part belongs to the MAX4565/MAX4566/MAX4567 family of quad/dual low-voltage switches. While the MAX4565 offers four SPST switches and the MAX4566 provides dual SPST switches, the MAX4567 specifically integrates two SPDT switches. All variants share the same T-switch topology and general electrical characteristics but differ in channel count and switch configuration.

Analog Switches - Special Purpose Replacement Considerations

MAX4567EEE+T

Analog Switches - Special Purpose FAQ

How does the T-switch construction improve performance?

The T-switch uses two series CMOS switches with a third N-channel switch at the junction that shunts capacitively-coupled signals to ground when the series switches are off, ensuring excellent high-frequency off-isolation.

What is the impact of using a single supply instead of dual supplies?

Single-supply operation limits AC signals to -0.3V due to internal ESD diodes and degrades switching speed, on-resistance, off-isolation, and distortion compared to the optimized ±5V dual-supply operation.

Why are multiple GND_ pins provided?

Each switch has separate ground pins that are not internally connected to improve high-frequency performance and provide flexibility. They must be connected to a solid ground plane to maintain optimal isolation and crosstalk characteristics.