ADG751BRT-REEL7

Overview

The ADG751BRT-REEL7 is a low voltage SPST CMOS RF/Video 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 Ω (max) at +25°C and 50 Ω (max) at +85°C for the B grade. Typical switching times are 9 ns for turn-on and 3 ns for turn-off. The component offers –75 dB off isolation at 100 MHz and a –3 dB signal bandwidth of 300 MHz. Power consumption is typically less than 0.01 mW.

Feature Summary

• T-switch architecture provides enhanced off isolation compared to standard series switches.
• Capable of handling bidirectional signals extending up to and including the supply rails.
• Compatible with TTL and CMOS logic levels for direct interface with digital control circuits.

Applications

• Audio and video signal routing
• RF switching in communication systems
• Relay replacement in portable instruments

Procurement Notes

Verify the specific ordering suffix to confirm package type and RoHS compliance status. Ensure the temperature range matches the application requirements. Confirm that the reel quantity aligns with manufacturing needs. Check for any recent product change notices regarding assembly sites or materials.

Selection Notes

Select this component when high off isolation and wide bandwidth are critical for RF or video applications. Consider the B grade specifications if higher on-resistance tolerance is acceptable for cost reduction. Evaluate the SOT-23 package size constraints against available PCB real estate. Verify power supply stability given the low current consumption characteristics.

Part Context

This part belongs to the ADG751 family of low voltage analog switches. It is distinct from other variants by its specific B grade performance metrics and SOT-23 packaging. The family includes both A and B grades with different resistance tolerances. Other packages like MSOP are available for designs requiring more pins or different thermal profiles.

Replacement Considerations

Direct substitutes within the same family include ADG751ART-REEL7 and ADG751BRMZ-REEL7, depending on the required package and grade. Cross-family replacements may require verification of pin compatibility and electrical parameter alignment.