The MAX4641/MAX4642/MAX4643 are monolithic, dual, single-pole/single-throw (SPST) switches that can operate from a single supply ranging from +1.8V to +5.5V. The MAX4641/MAX4642/MAX4643 provide low 4Ω on-resistance (RON), 0.6Ω RON matching between channels, and 1Ω RON flatness over the entire analog signal range. These devices offer fast switching times of less than 20ns while consuming less than 0.01µW of quiescent power.
The MAX4641 has two normally open (NO) switches, and the MAX4642 has two normally closed (NC) switches. The MAX4643 has one NO switch and one NC switch. All three devices have low 0.35nA leakage currents over the entire temperature range. The MAX4641/MAX4642/MAX4643 are available in small 8-pin µMAX® and 8-pin QFN packages.
Key Features
Applications/Uses
+1.8V to +5.5V Single-Supply Operation
Rail-to-Rail Analog Signal Range
Guaranteed RON
4Ω max (+5V supply)
8Ω max (+3V supply)
+1.8V Operation
RON 30Ω typ Over Temperature
tON 18ns typ, tOFF 12ns typ
Guaranteed RON Flatness: 1Ω (+5V supply)
Guaranteed RON Match Between Channels
0.6Ω (+5V supply)
Low Leakage (<0.35nA) Over Entire Temperature Range
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