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AS1744 датащи(PDF) 6 Page - ams AG |
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AS1744 датащи(HTML) 6 Page - ams AG |
6 / 16 page AS1744, AS1745 austriamicrosystems Data Sheet ON-Resistance www.austriamicrosystems.com Revision 1.53 6 - 16 Figure 8. tON/tOFF vs. Supply Voltage Figure 9. Charge Injection 7 Detailed Description The AS1744/AS1745 are low ON-resistance, low-voltage, dual analog SPDT switches that operate from a single +1.8 to +5.5V supply. CMOS process technology allows switching of analog signals that are within the supply voltage range (GND to V+). ON-Resistance When powered from a +5V supply, the low RON (4 Ω max) allows high continuous currents to be switched in a wide range of applications. All devices have low RON flatness (1 Ω, max) so they can meet or exceed the low-distortion audio requirements of modern portable audio devices. Bi-Directional Switching Pins NOx, NCx, and COMx are bi-directional, thus they can be used as inputs or outputs. Analog Signal Levels Analog signals ranging over the entire supply voltage (V+ to GND) can be passed with very little change in ON-resis- tance (see Typical Operating Characteristics on page 5). Logic Inputs The AS1744/AS1745 logic inputs (INx) can be driven up to +5.5V regardless of the supply voltage value. For example, with a +3.3V supply, IN+ may be driven low to GND and high to +5.5V. This allows the devices to interface with +5V systems using a supply of less than 5V. 0 10 20 30 40 1.5 2.5 3.5 4.5 5.5 Supply Voltage (V) -5 0 5 10 15 20 25 30 35 01 23 45 VCOM (V) VDD = 3V VDD = 5V VDD = 3V VDD = 5V tON tOFF -5 0 5 10 15 20 25 30 35 01 23 45 VCOM (V) VDD = 3V VDD = 5V VDD = 3V VDD = 5V |
Аналогичный номер детали - AS1744 |
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Аналогичное описание - AS1744 |
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