The MAX4741/MAX4742/MAX4743 are low on-resistance, low-voltage, dual single-pole/single-throw (SPST) analog switches that operate from a single +1.6V to +3.6V sup- ply. These devices have fast switching speeds (tON = 24ns, tOFF = 16ns max), handle rail-to-rail analog signals, and consume less than 1µW of quiescent power. The MAX4743 has break-before-make switching. When powered from a +3V supply, the MAX4741/ MAX4742/MAX4743 feature low 0.8Ω (max) on-resis- tance (RON), with 0.08Ω (max) RON matching and 0.18Ω RON flatness. The digital logic input is 1.8V CMOS compatible when using a single +3V supply. The MAX4741 has two normally open (NO) switches, the MAX4742 has two normally closed (NC) switches, and the MAX4743 has one NO switch and one NC switch. The MAX4741 is available in 8-pin µDFN (2mm x 2mm), 8-pin SOT23, and 8-pin µMAX® packages. The MAX4742/MAX4743 are available in 8-pin SOT23 and 8-pin µMAX packages. Applications include Power Routing, Battery Powered Systems, Audio and Video Signal Routing, Low-Voltage Data-Acquisition Systems, Communications Circuits, PCMCIA Cards, Cellular Phones, Modems and Hard Drives.
The MAX4741, MAX4742 and MAX4743 are low‑on‑resistance, low‑voltage dual single‑pole/single‑throw (SPST) analog switches that operate from a single +1.6 V to +3.6 V supply. They feature fast switching (tON = 24 ns, tOFF = 16 ns), rail‑to‑rail analog signal handling, and low quiescent power (< 1 µW). The devices differ in switch polarity: MAX4741 provides two normally‑open (NO) switches, MAX4742 provides two normally‑closed (NC) switches, and MAX4743 provides one NO and one NC switch.
Key specifications include a typical on‑resistance of 0.8 Ω (max) at a +3 V supply, 150 mA continuous current capability, and 1.8 V CMOS‑compatible logic inputs. The parts are offered in 8‑pin µDFN, 8‑pin SOT23 and 8‑pin µMAX packages, and are suited for power‑routing, battery‑powered systems, audio/video signal routing, low‑voltage data‑acquisition, and communications circuits.
| Supply voltage range | +1.6 V to +3.6 V |
|---|---|
| Continuous current rating | 150 mA |
| Logic input high level | 1.8 V CMOS compatible |
| Turn‑on time (tON) | 24 ns |
| Turn‑off time (tOFF) | 16 ns |
| Package options | 8‑pin µDFN, 8‑pin SOT23, 8‑pin µMAX |
They operate from a single +1.6 V to +3.6 V supply.
MAX4741 has two normally open (NO) switches, MAX4742 has two normally closed (NC) switches, and MAX4743 has one NO and one NC switch.
They can handle up to 150 mA continuous current.