The MAX361/MAX362 are precision, quad, single-pole single-throw (SPST) analog switches. The MAX361 has four normally closed (NC) switches, and the MAX362 has four normally open (NO) switches. Both parts offer low channel on-resistance (less than 85Ω), guaranteed to match within 3Ω between channels and to remain flat over the analog signal range (∆9Ω max). Both parts also offer low leakage (less than 500pA at +25°C and less than 4nA at +85°C) and fast switching (turn-on time less than 250ns and turn-off time less than 170ns). The MAX361/MAX362 are fabricated with Maxim’s new improved 44V silicon-gate process. Design improve- ments guarantee extremely low charge injection (10pC), low power consumption (35µW), and electro- static discharge (ESD) greater than 2000V. The 44V maximum breakdown voltage allows rail-to-rail analog signal handling capability. These monolithic switches operate with a single positive supply (+10V to +30V) or with split supplies (±4.5V to ±20V) while retaining CMOS-logic input compatibility and fast switching. CMOS inputs provide reduced input loading.
The MAX361 and MAX362 are precision quad single‑pole single‑throw analog switches from Maxim. MAX361 provides four normally‑closed switches, while MAX362 offers four normally‑open switches, suitable for sample‑and‑hold circuits, control systems, displays, test equipment and other applications.
Both devices feature low on‑resistance (<45 Ω typical), tight channel matching (<2 Ω), low leakage (<4 nA at +85 °C), fast switching (turn‑on <250 ns, turn‑off <170 ns), high ESD protection (>2000 V) and operate from either dual supplies (±4.5 V to ±20 V) or single supplies (10 V to 30 V). Various DIP, SO and thin‑QFN packages are available.
| On Resistance (Typical) | <45 Ω |
|---|---|
| On Resistance (Maximum) | 85 Ω |
| On‑Resistance Match Between Channels | <2 Ω |
| Off‑Channel Leakage (at +85 °C) | <4 nA |
| ESD Rating | >2000 V |
| Turn‑On Time | <250 ns |
| Supply Voltage Range (Dual) | ±4.5 V to ±20 V |
| Charge Injection | <10 pC |
The typical on‑resistance is less than 45 Ω.
The devices are rated for ESD protection greater than 2000 V.
They can run from dual supplies of ±4.5 V to ±20 V or from a single supply of 10 V to 30 V.
Turn‑on time is under 250 ns and turn‑off time is as fast as 170 ns for the MAX362 version.