ADG751BRMZ-REEL7

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, with typical power consumption below 0.01 mW. Key electrical parameters include an on-resistance of up to 35 Ω for the B grade, a –3 dB signal bandwidth of 300 MHz, and off-isolation of –75 dB at 100 MHz. Switching times are 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 an industrial operating temperature range from -40°C to +85°C.

Feature Summary

• T-switch architecture provides enhanced off-isolation compared to standard series switches.
• Capable of handling bidirectional signals extending to the supply rails.
• Compatible with TTL and CMOS logic control inputs.

Applications

• Audio and video signal switching
• RF switching applications
• Battery powered portable instruments
• Communication systems
• Sample-and-hold circuits

Procurement Notes

Verify the specific ordering suffix to confirm package type and RoHS compliance status. Ensure the selected variant matches the required thermal impedance and lead soldering specifications for the intended manufacturing process. Confirm availability through authorized distributors as stock levels fluctuate.

Selection Notes

Select the B grade variant for higher on-resistance tolerance requirements compared to the A grade. Consider the 8-lead mSOIC package for board space constraints versus the 6-lead SOT-23 option. Evaluate thermal dissipation limits based on the junction-to-ambient thermal impedance provided in the datasheet for high-power environments.

Part Context

This component belongs to the ADG751 family of low voltage CMOS analog switches. The family includes variants with different packaging options such as SOT-23 and mSOIC, and grades A and B which differ primarily in on-resistance specifications. The BRMZ suffix indicates the B grade version packaged in the 8-lead mini small outline format.

Replacement Considerations

Direct substitutes within the same family include ADG751ARMZ-REEL7 and ADG751BRTZ-REEL7, differing mainly in package style or grade. Cross-family replacements require verification of pin compatibility and electrical parameter alignment.

FAQ

What is the maximum continuous current allowed through the source or drain terminals?

The absolute maximum rating specifies a continuous current limit of 30 mA for either the source or drain terminal.

How does the T-switch configuration improve performance?

The T-switch design uses a shunt switch to ground when the series switches are open, providing a path for unwanted signals and resulting in significantly higher off-isolation than ordinary series switches.

Is the ADG751 suitable for dual supply operation?

The datasheet specifies operation with a single supply voltage ranging from +1.8 V to +5.5 V relative to ground.