Switches and multiplexers meet both low resistance and low capacitance requirements
2 June 2004
Analogue, Mixed Signal, LSI
The ADG14xx series of low on resistance multiplexers is the first in a new portfolio of devices from Analog Devices aimed at meeting the needs of next-generation industrial, instrumentation, and ATE requirements.
The ADG1408 is an 8:1 multiplexer with very low 5 Ω maximum on resistance over all specified operating conditions. The ADG1409 is the same but is a dual 4:1 multiplexer. These parts are characterised at 12 V and ±5 V as well as to ±15 V.
Small package size (16-lead TSSOP), increased reliability, and lower power consumption (<0,03 µW) mean that typical applications for this part will include relay replacement. Small power consumption, coupled with the very low RON characteristic, also make the ADG14xx series very attractive for makers of portable instrumentation and medical equipment. The small 0,5 Ω flatness characteristic and rail-to-rail operation make the parts useful for audio and video routing applications.
The ADG1211/2/3 are switches that the manufacturer says offer a quantum leap improvement for makers of measurement and data acquisition equipment for which low capacitance and minimum charge injection are important switch requirements. Their introduction means designers no longer have to spend time compensating for unwanted effects in the system, making the design task easier and more efficient, says ADI.
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