AS1744G-T-1K

Analog Switches, Multiplexers, Demultiplexers Overview

The AS1744G-T-1K is a dual single-pole/double-throw (SPDT) analog switch manufactured by ams OSRAM. It operates on a single supply voltage ranging from +1.8V to +5.5V and features low ON-resistance of 4Ω at +5V and 5.5Ω at +3V. The device supports break-before-make switching, handles up to 100mA continuous current, and offers rail-to-rail signal handling. Key electrical parameters include an ON-resistance match of 0.2Ω, flatness of 1Ω, off-isolation of -85dB at 1MHz, and crosstalk of -90dB at 1MHz. It is housed in a 10-pin MSOP package.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Dual SPDT analog switches with low ON-resistance for high-speed signal routing
• Supports single-supply operation from +1.8V to +5.5V with rail-to-rail signal handling
• Features break-before-make switching logic to prevent signal shorting
• Low power consumption suitable for battery-powered applications

Analog Switches, Multiplexers, Demultiplexers Applications

• Power routing systems
• Cordless and mobile phones
• MP3 players and portable audio devices
• Digital cameras and handheld computers

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix '-1K' against official manufacturer documentation, as standard datasheets list 'AS1744G-T' for tape and reel delivery. Confirm that the suffix does not indicate non-standard packaging or testing conditions. Ensure compatibility with the 10-pin MSOP footprint during procurement planning.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when designing circuits requiring dual SPDT switching within a low-voltage environment. The device is appropriate for applications needing fast switching speeds and minimal signal distortion. Verify that the logic input levels are compatible with the system's control voltages, as the inputs can be driven up to +5.5V regardless of the supply voltage.

Analog Switches, Multiplexers, Demultiplexers Part Context

The AS1744 series belongs to a family of high-speed, low-voltage analog switches designed for portable electronics. It shares functional similarities with the AS1745 but differs in logic polarity. The device is part of the Austriamicrosystems portfolio, now integrated into ams OSRAM, focusing on efficient signal management in compact form factors.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The AS1745G-T serves as a logical alternative if inverted logic control is required instead of the standard logic found in the AS1744. Both devices share identical pinouts, packages, and electrical characteristics except for the truth table inversion.