AS1743 austriamicrosystems, AS1743 Datasheet - Page 8

• Manufacturer Part Number: AS1743
• Description: (AS1741 - AS1743) Dual SPST Analog Switches
• Manufacturer: austriamicrosystems

AS1741, AS1742, AS1743
Data Sheet
8 Detailed Description
The AS1741/AS1742/AS1743 are low ON-resistance, low-voltage, dual analog SPST switches that operate from a sin-
gle +1.6 to +3.6V 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 +3V supply, the AS1741/AS1742/AS1743 low (0.8 Ω , max) ON-resistance allows high-speed,
continuous signals to be switched in a variety of applications. All devices have very low R
they can meet or exceed the low-distortion audio requirements of modern portable audio devices.
Bi-Directional Switching
Pins NO x , NC x , and COM x are bi-directional and can be used as inputs or outputs.
Analog Signal Levels
Analog signals ranging over the entire supply voltage range (V+ to GND) can be passed with very little change in ON-
resistance (see
Logic Inputs
The AS1741/AS1742/AS1743 logic inputs can be driven up to +3.6V regardless of the supply voltage value. For exam-
ple, with a +1.8V supply, IN x 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.
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Typical Operating Characteristics on page
Revision 1.76
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austriam i c r o
ON
flatness (0.18 Ω , max) so
ON Resistance
systems
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