MAX4661EAE+T

Switch Time (Ton, Toff) (Max):	275ns, 175ns
Base Part Number:	MAX4661
Supplier Device Package:	16-SSOP
Package / Case:	16-SSOP (0.209", 5.30mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Crosstalk:	-59dB @ 1MHz
Current - Leakage (IS(off)) (Max):	500pA
Channel Capacitance (CS(off), CD(off)):	55pF, 55pF
Charge Injection:	300pC
-3db Bandwidth:	--
Series:	--
Voltage - Supply, Dual (V±):	±4.5 V ~ 20 V
Voltage - Supply, Single (V+):	4.5 V ~ 36 V
Channel-to-Channel Matching (ΔRon):	100 mOhm
On-State Resistance (Max):	2.5 Ohm
Number of Circuits:	4
Multiplexer/Demultiplexer Circuit:	1:1
Switch Circuit:	SPST - NC
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The MAX4661EAE+T is a versatile and highly integrated version of the MAX4661 family of analog switches, multiplexers, and demultiplexers. This lecture will discuss MAX4661EAE+T Application Field and Working Principle in the context of Interface - Analog Switches, Multiplexers, Demultiplexers.

Application Field

The MAX4661EAE+T family offers solutions for those applications that require a switch or multiplexer that can function with low voltage supplies, at a low power, with very low leakage, and is only occupied by a moderate amount of board space. Typical applications of the MAX4661EAE+T family include the following:

• Switching supplies in low-cost portable applications with few supply rails
• Automotive sensing using multiplexers with large resistance
• Setting up multiple switches to provide test points for engineers
• Multiplexing sensor inputs from low-powered IO ports
• Multiplexing of analog values for data acquisition systems
• Switching audio signals in portable multimedia applications

Working Principles

The MAX4661EAE+T family has very low power requirements, 1.2mA typical. It uses a low voltage supply, from 2.7V to 5.75V, and can support both single and dual supply configurations. Compared with the earlier MAX4661 family, this family has enhanced features such as: very low leakage, up to luA at +85℃, low thermal resistance, and improved performance. The power-on reset circuit provides a means f℃or designers to reset the circuit to its default state when power is applied, allowing easy initialization. The MAX4661EAE+T family provides low resistance on-chip pass devices and high-speed control logic to ensure that switching times are very fast. The family offers integrated protection diodes for input signals, ensuring that no additional external components are necessary for protection in most applications. The MAX4661EAE+T family is available in a variety of packages, including TQFN and CSP packages, as well as an exposed-paddle TQFN package that supports -40℃ to +85℃ operation. The CSP packages are RoHS compliant and lead free.

Conclusion

The MAX4661EAE+T family offers an excellent solution for switch multiplexers and demultiplexers in many applications. It has low power requirements, voltage supply up to 5.75V, fast switching times and Leakage up to luA at +85℃. The packages are also lead free, RoHS compliant and available in many packages such as TQFN, CSP and an exposed-paddle TQFN package. Overall, this family is a perfect example of how integrated circuits and technology can produce a very functional, low cost solution for many applications.

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