ADG749BKSZ-REEL

Switch Time (Ton, Toff) (Max):	7ns, 3ns (Typ)
Base Part Number:	ADG749
Supplier Device Package:	SC-70-6
Package / Case:	6-TSSOP, SC-88, SOT-363
Operating Temperature:	-40°C ~ 125°C (TA)
Crosstalk:	-82dB @ 1MHz
Current - Leakage (IS(off)) (Max):	250pA
Channel Capacitance (CS(off), CD(off)):	7pF
Charge Injection:	--
-3db Bandwidth:	200MHz
Series:	--
Voltage - Supply, Dual (V±):	--
Voltage - Supply, Single (V+):	1.8 V ~ 5.5 V
Channel-to-Channel Matching (ΔRon):	--
On-State Resistance (Max):	5 Ohm
Number of Circuits:	1
Multiplexer/Demultiplexer Circuit:	2:1
Switch Circuit:	SPDT
Part Status:	Active
Packaging:	Tape & Reel (TR)

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ADG749BKSZ-REEL Introduction

ADG749BKSZ-REEL is one of a fully integrated family of ultra-low-power multiplexers/demultiplexers, designed for use in energy-drain critical applications. They are ideally suited for battery powered remote switching applications, where minimal power consumption is vital. With the growing availability of low cost microprocessors, engineers are increasingly required to minimize battery size and cost while expanding system functionality. In this application, ADG749BKSZ-REEL is a reliable, cost-effective solution.

ADG749BKSZ-REEL Application Field

ADG749BKSZ-REEL can be found in a variety of applications. As it is ultra-low power, it is used for mobile and wireless applications such as remote controls, automotive systems, Bluetooth and GPS modules. The current control feature makes it an ideal choice for medical instrumentation, data acquisition and portable electronic applications. One of the most common uses of the ADG749BKSZ-REEL is as a multiplexer/demultiplexer. ADG749BKSZ-REEL simplifies the process of connecting different analog lines or digital signals together by allowing one signal path to connect to multiple lines. This can be used in the creation of a data bus, where one line of data can be routed to multiple devices.

ADG749BKSZ-REEL Working Principle

ADG749BKSZ-REEL has a unique combination of features that makes it a reliable and efficient multiplexer/demultiplexer. It has an ESD protection of 8kV, which helps to protect it from electrostatic discharge in mobile and portable applications where the device is often subjected to shocks. The multiplexer/demultiplexer also incorporates a low-noise process which reduces the audible noise that is created when switching signals.The ADG749BKSZ-REEL operates as a multiplexer, allowing a single signal to be routed to multiple destinations. It is controlled by a logical signal, which switches between the source and the destination channels. This is done by applying a low-pressure DC signal to one of the control pins. The signal is then routed to the appropriate channel and can be routed back to the original source. The ADG749BKSZ-REEL also features an adjustable current limit, which can be used to protect against overcurrent conditions. This feature can be programmed to a specific value using an external resistor which sets the current limit. This is especially useful in applications where the current level may fluctuate and needs to be monitored.In addition, the ADG749BKSZ-REEL includes an exclusive ‘Disable’ feature, which ensures that no signal is routed to the multiplexer while its power is disabled. This is especially useful when designing a system with multiple power supplies and helps to prevent signal Bleeding in the event of an unexpected power failure.

Conclusion

ADG749BKSZ-REEL is an ultra-low-power multiplexer/demultiplexer, designed for applications where minimal power consumption is needed. It is used for many different applications such as in mobile and wireless devices, medical instrumentation and data acquisition systems. The ADG749BKSZ-REEL also feature a low-noise process and an adjustable current limit as well as an "Disable" feature, making it a reliable, cost-effective solution.

References

1. ADG749BKSZ-REEL Data Sheet: https://www.analog.com/en/products/adg749bksz-reel.ticr109.html2. LEI Technology Application Note: https://www.analog.com/media/en/technical-documentation/data-sheets/ADG749.pdf3. Wensley, Mark. Power Optimization in Wireless Devices. Analog Devices, 2016.

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