ADG751BRTZ-REEL7

Overview

The ADG751BRTZ-REEL7 is a low voltage SPST analog switch from Analog Devices, constructed in a T-switch configuration for high off isolation. It operates on a single supply ranging from +1.8 V to +5.5 V with typical power consumption below 0.01 mW. The device features a –3 dB signal bandwidth of 300 MHz and fast switching times, with tON typically at 9 ns and tOFF at 3 ns. It offers an off isolation of –75 dB at 100 MHz and on-resistance up to 35 Ohms maximum. Packaged in a 6-lead SOT-23, it supports industrial temperatures from -40°C to +85°C.

Feature Summary

• T-switch architecture provides superior off isolation while maintaining wide frequency response.
• Capable of handling bidirectional signals extending to the supply rails.
• Compatible with TTL and CMOS logic levels for direct interface.
• Designed for low power dissipation suitable for battery-operated instruments.

Applications

• Audio and video signal routing
• RF switching applications
• Relay replacement circuits
• Sample-and-hold systems

Procurement Notes

Verify the component grade (A or B) against application requirements, as specifications such as on-resistance vary between grades. Confirm the package type matches the PCB footprint, specifically the 6-lead SOT-23 variant indicated by the RTZ suffix. Ensure ESD precautions are observed during handling due to the sensitivity of the CMOS structure.

Selection Notes

Select this component when high off isolation and wide bandwidth are critical for RF or video signals. Consider the B grade if higher on-resistance tolerance is acceptable for cost optimization. Verify that the single-supply voltage range aligns with the system's power constraints. Ensure layout guidelines regarding ground planes and decoupling capacitors are followed to maintain performance.

Part Context

This part belongs to the ADG751 family of low voltage SPST switches. It shares the same functional block and electrical characteristics as other variants like the ADG751ARTZ-REEL7, differing primarily in packaging options such as the 8-lead MSOP. The family is designed for portable and battery-powered applications requiring efficient signal switching.

Replacement Considerations

Direct substitutes within the same series include ADG751ARTZ-REEL7, which offers identical electrical performance but utilizes an 8-lead MSOP package instead of the 6-lead SOT-23. Cross-package replacements require careful review of pinout compatibility and thermal management strategies.

FAQ

What is the maximum continuous current allowed through the switch?

The maximum continuous current for either the Source or Drain terminal is 30 mA.

How does the T-switch configuration improve performance?

The T-switch configuration uses a shunt switch to ground when off, providing a path for unwanted signals and resulting in significantly higher off isolation compared to standard series switches.

Is the ADG751BRTZ-REEL7 RoHS compliant?

Yes, the 'Z' suffix in the part number indicates that the component is RoHS compliant.