ADG751BRMZ-REEL

Overview

The ADG751BRMZ-REEL7 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, making it suitable for battery-powered applications. Key electrical parameters include an on-resistance of up to 35 Ohms, a typical power consumption of less than 0.01 mW, and switching times with a maximum turn-on time of 13 ns and turn-off time of 5 ns. It features TTL/CMOS compatible digital inputs and operates within an industrial temperature range of -40°C to +85°C.

Feature Summary

• T-switch architecture provides high off-isolation and maintains good frequency response in the ON condition.
• Low power consumption design ideal for portable and battery-operated instruments.
• Fully bidirectional switch capable of handling signals up to and including the supply rails.
• Compatible with standard TTL and CMOS logic families.

Applications

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

Procurement Notes

Verify the specific ordering suffix to confirm package type and RoHS compliance status. Ensure the component grade matches the required performance specifications for your application. Cross-reference the manufacturer part number with official distributor catalogs to confirm current availability and authenticity before placing orders.

Selection Notes

Select this component when high isolation and wide bandwidth are critical requirements for SPST switching tasks. Consider the B-grade specifications for on-resistance limits if precise signal integrity is needed. Evaluate the MSOP-8 package dimensions against available PCB real estate constraints during the layout phase.

Part Context

This component belongs to the ADG751 family of low voltage CMOS switches. It is designed as a compact alternative to mechanical relays in signal routing applications. The BRMZ variant specifically denotes the B-grade performance level housed in an 8-lead Mini Small Outline Package.

Replacement Considerations

Direct substitutes within the same family include the ADG751ARMZ for A-grade performance or the ADG751BRTZ-REEL7 for the 6-lead SOT-23 package option. Verify pin compatibility and thermal characteristics when transitioning between package types.

FAQ

What is the maximum analog signal range supported by the ADG751?

The analog signal range extends from 0 V to VDD, allowing the switch 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 OFF, which significantly improves off-isolation compared to standard series switches without compromising on-state frequency response.

Is the ADG751 suitable for RF applications?

Yes, its high off-isolation (-75 dB at 100 MHz) and wide -3 dB signal bandwidth (up to 300 MHz) make it suitable for RF and video signal switching.