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The PI5A126/PI5A127 are dual SPST (single-pole single-throw)analog switches designed for single supply operation.
These high-precision devices are ideal for low-distortion audio,video, signal switching and routing.
The PI5A126 is a normally open (NO) switch. The switch is openwhen IN is LOW. The PI5A127 is a normally closed (NC) switch.
Each switch conducts current equally well in either directionwhen on. When off, they block voltages up to V+.
These switches are fully specified with +5V and +3.3V supplies.
With +5V, they guarantee <10 -ohm ON-resistance. On-resistancematching between channels is within 2 ohms. On-resistance flatnessis less than 5 ohms over the specified range. These switchesalso guarantee fast switching speeds (tON < 20ns).
These products are available in 8-pin SOIC and MSOP plasticpackages for operation over the industrial temperature range(40oC to +85oC).
PI5A127 Maximum Ratings
Voltages Referenced to GND V+ ............................................................................................. 0.5V to +7V VIN, VCOM, VNC, VNO (Note 1) ........................... 0.5V to V+ +2V ................................................... or 30mA, whichever occurs first Current (any terminal except COM,NO,NC) ........................ 30mA Current, COM, NO, NC ......................................................100mA (Pulsed at 1ms, 10% duty cycle) ........................................120mA Continuous Power Dissipation -6 (derate 7mW/ºC above +70ºC) ........................................ 550mW Storage Temperature ......................................... 65ºC to +150ºC Lead Temperature (soldering, 10s) .................................. +300ºC
Note 1: Signals on NC, NO, COM, or IN exceeding V+ or GND areclamped by internal diodes. Limit forward diode current to 30mA.
PI5A127 Features
• Single-Supply Operation (+2V to +6V) • Rail-to-Rail Analog Signal Dynamic Range • Low On-Resistance (6-Ohms typ. with 5V supply)Minimizes Distortion and Error Voltages • On-Resistance Flatness, 3W typ. • Low Charge Injection Reduces Glitch Errors. Q = 4pC typ. • High Speed. tON = 10ns typ. • Wide 3dB Bandwidth: 230 MHz • High-Current Channel Capability: >100mA • TTL/CMOS Logic Compatible • Low Power Consumption (0.5mW typ.) • Small MSOP-8 package minimizes board area
PI5A127 Typical Application
• Audio, Video Switching and Routing • Battery-Powered Communication Systems • Computer Peripherals • Telecommunications • Portable Instrumentation • Mechanical Relay Replacement • Cell Phones • PDAs