ADG749BKSZ-REEL

Analog Switches, Multiplexers, Demultiplexers Overview

The ADG749BKSZ-REEL is a monolithic CMOS single-pole double-throw (SPDT) analog switch manufactured by Analog Devices Inc. It operates on a single supply voltage ranging from 1.8 V to 5.5 V and features a maximum on resistance of 5 Ω with a typical value of 2.5 Ω at 5 V. The device offers a –3 dB bandwidth exceeding 200 MHz, fast switching times with tON max of 12 ns and tOFF max of 6 ns, and low leakage currents. It supports rail-to-rail operation and is housed in a compact 6-lead SC-70 package. The component is rated for an automotive temperature range of −40°C to +125°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• CMOS construction ensures low power dissipation and high switching speed.
• Rail-to-rail operation allows full signal swing across the supply range.
• Fast switching times minimize delay during state transitions.
• Compact 6-lead SC-70 package facilitates space-constrained designs.

Analog Switches, Multiplexers, Demultiplexers Applications

• Battery-powered systems requiring low power consumption
• Communication systems for signal routing
• Sample-and-hold circuits
• Audio signal routing applications
• Video switching systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm packaging format and quantity. Ensure the component meets RoHS compliance requirements as indicated in the datasheet. Confirm that the thermal impedance and soldering parameters align with your assembly process specifications before finalizing procurement orders.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a low on resistance and high bandwidth are required in a minimal footprint. Consider the supply voltage dependency on on resistance; lower voltages increase resistance significantly. Verify that the digital input levels are compatible with your logic family, as the device supports TTL/CMOS inputs. Evaluate the thermal performance within the specified operating temperature range for your application environment.

Analog Switches, Multiplexers, Demultiplexers Part Context

The ADG749 belongs to Analog Devices' family of general-purpose CMOS switches designed for improved switching times and low power consumption. It serves as a replacement for mechanical reed relays in various signal routing applications. The device integrates a submicron process to achieve high performance while maintaining low leakage currents and power dissipation suitable for portable and battery-operated equipment.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Public confirmed substitute part numbers include ADG749BKSZ-R2 and ADG749BKSZ-REEL7. These variants share identical electrical characteristics and pin configurations but differ in reel packaging quantities. Verify compatibility with existing board layouts and ensure the alternative packaging does not require changes to pick-and-place programming.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the maximum continuous current rating for the source or drain terminals?

The maximum continuous current for the Source (S) or Drain (D) terminals is 30 mA.

How does the on resistance vary with supply voltage?

On resistance increases as supply voltage decreases. At 5 V, it is typically 2.5 Ω, while at 1.8 V, it rises to approximately 40 Ω.

What is the break-before-make time delay specification?

The break-before-make time delay (tD) is typically 8 ns and has a minimum specification of 1 ns under standard test conditions.