ADG751ARMZ-REEL

Overview

The ADG751ARMZ-REEL is a low voltage, single-pole single-throw (SPST) analog switch manufactured by Analog Devices Inc. It utilizes a T-switch configuration to achieve high off-isolation and wide signal bandwidth while maintaining low on-resistance. The device operates on a single supply ranging from +1.8 V to +5.5 V with typical power consumption below 0.01 mW. It features TTL/CMOS compatible digital inputs and fast switching times, typically 9 ns for turn-on and 3 ns for turn-off. The component is housed in an 8-lead mini small outline package (mSOIC) and supports industrial operating temperatures from -40°C to +85°C.

Feature Summary

• T-switch architecture provides superior off-isolation compared to standard series switches.
• Capable of handling bidirectional signals up to the supply rails.
• Designed for submicron CMOS processes ensuring low power dissipation.
• Digital control inputs are fully compatible with standard TTL and CMOS logic levels.

Applications

• Audio and video signal routing
• RF and microwave switching applications
• Battery-powered portable instruments
• Communication systems requiring relay replacement

Procurement Notes

Verify the specific ordering suffix to confirm the package type and RoHS compliance status. Ensure the procurement channel sources directly from authorized distributors or the manufacturer to guarantee authenticity. Check the datasheet revision date to confirm the technical specifications match the required design parameters before finalizing orders.

Selection Notes

Select this component when high off-isolation at RF frequencies is critical alongside low power consumption. The 8-lead mSOIC package is suitable for space-constrained designs requiring surface mount technology. Consider the B grade if higher maximum on-resistance limits are acceptable for cost optimization, though the A grade offers tighter performance specifications.

Part Context

This part belongs to the ADG751 family of low voltage RF/video switches. It is functionally similar to other SPST switches but distinguished by its specific T-switch topology which enhances isolation characteristics. The ARMZ suffix indicates the 8-lead mSOIC package variant, distinct from the 6-lead SOT-23 versions available in the same product line.

Replacement Considerations

Direct pin-compatible replacements within the same family include the ADG751BRMZ-REEL for the B grade version in the same package. Other Analog Devices SPST switches may require schematic redesign due to differences in on-resistance or package pinouts.

FAQ

What is the maximum analog signal range the ADG751 can handle?

The analog signal range extends from 0 V to VDD, allowing it to handle signals up to and including the positive supply rail.

How does the T-switch configuration improve performance?

The T-switch configuration uses a shunt switch to ground when the main path is open, providing a low-impedance path for unwanted signals and resulting in significantly higher off-isolation than standard series switches.

Is the ADG751 suitable for high-frequency RF applications?

Yes, it features a -3 dB signal bandwidth of up to 300 MHz and high off-isolation (-75 dB at 100 MHz), making it suitable for RF and video switching.