Description
The PS320/PS321/PS322 are improved high-precision, medium voltage analog switches designed to operate with +3V to +8V power supplies. The PS320 is a dual, single-pole single-throw (SPST), normally open (NO) switch. The PS321 has the same pinout as the PS320 but it has two normally closed (NC) switches. The PS322 has one normally open (NO) and one normally closed (NC) switch per package. When on, each switch conducts current equally well in either direction. In the off state, each switch blocks voltages up to the power-supply rails.

FEATUREs
• Low On-Resistance (17W typ.) Minimizes Distortion and Error Voltages
• Low Glitching Reduces Step Errors in Sample-and-Holds
• Split-Supply Operation (±3V to ±8V)
• Improved Second Sources for MAX320/MAX321/MAX322
• On-Resistance Matching Between Channels, 0.2Ωtyp.
• On-Resistance Flatness, <2Ω typ.
• Low Off-Channel Leakage, <5nA @ +85°C
• TTL/CMOS Logic Compatible
• Fast Switching Speed, tON <150ns
• Guaranteed Break-Before-Make action (PS322) eliminates momentary crosstalk
• Rail-to-Rail Analog Signal Dynamic Range
• Low Power Consumption, <1.25mW
• MSOP Package Minimizes Board Area

APPLICATIONs
• Audio Switching and Routing
• Portable Instruments
• Data Acquisition Systems
•· Sample-and-Holds
• Telecommunication Systems
• Battery-Powered Systems