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AS1751S Datasheet(PDF) 7 Page - ams AG |
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AS1751S Datasheet(HTML) 7 Page - ams AG |
7 / 16 page AS1751, AS1752, AS1753 austriamicrosystems Data Sheet ON-Resistance www.austriamicrosystems.com Revision 1.4 7 - 16 7 Detailed Description The AS1751/AS1752/AS1753 are low ON-resistance, low-voltage, quad analog SPST switches that operate from a single +1.6 to +3.6V supply. CMOS process technology allows switching of analog signals that are within the supply voltage range (GND to V+). Figure 9. 16-pin QFN Block Diagrams ON-Resistance When powered from a +3V supply, the low (0.9 Ω, max) ON-resistance allows high-speed, continuous signals to be switched in a variety of applications. Bi-Directional Switching Pins NOx, NCx, and COMx are bi-directional, thus they can be used as inputs to- or outputs from other components. Analog Signal Levels Analog signals ranging over the entire supply voltage range (V+ to GND) can be switched with very little change in ON- resistance (see Typical Operating Characteristics on page 5). Logic Inputs The devices’ logic inputs can be driven up to +3.6V regardless of the supply voltage value. For example, with a +1.8V supply, INx may be driven low to GND and high to +3.6V. This allows the devices to interface with +3V systems using a supply of less than 3V. Table 5. Truth Tables Device Input Switch State AS1751 Low Off High On AS1752 Low On High Off AS1753 Low Switches 1, 3 = Off Switches 2, 4 = On High Switches 1, 3 = On Switches 2, 4 = Off AS1751 2 COM2 3 N/C 4 IN2 1 NO2 11 NO4 10 N/C 9 COM4 12 IN4 AS1752 2 COM2 3 N/C 4 IN2 1 NC2 11 NC4 10 N/C 9 COM4 12 IN4 AS1753 2 COM2 3 N/C 4 IN2 1 NC2 11 NC4 10 N/C 9 COM4 12 IN4 |
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