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4051 CMOS 8选1双向模拟开关
消耗积分:10 |
格式:rar |
大小:123 |
2009-08-08
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The CD4051BC, CD4052BC, and CD4053BC analog multiplexers/
demultiplexers are digitally controlled analog
switches having low “ON” impedance and very low “OFF”
leakage currents. Control of analog signals up to 15Vp-p
can be achieved by digital signal amplitudes of 3 - 15V. For
example, if VDD = 5V, VSS = 0V and VEE = -5V, analog signals
from -5V to +5V can be controlled by digital inputs of 0
- 5V. The multiplexer circuits dissipate extremely low quiescent
power over the full VDD-VSS and VDD-VEE supply
voltage ranges, independent of the logic state of the control
signals. When a logical “1” is present at the inhibit input terminal
all channels are “OFF”.
CD4051BC is a single 8-channel multiplexer having three
binary control inputs. A, B, and C, and an inhibit input. The
three binary signals select 1 of 8 channels to be turned
“ON” and connect the input to the output.
CD4052BC is a differential 4-channel multiplexer having
two binary control inputs, A and B, and an inhibit input. The
two binary input signals select 1 or 4 pairs of channels to
be turned on and connect the differential analog inputs to
the differential outputs.
demultiplexers are digitally controlled analog
switches having low “ON” impedance and very low “OFF”
leakage currents. Control of analog signals up to 15Vp-p
can be achieved by digital signal amplitudes of 3 - 15V. For
example, if VDD = 5V, VSS = 0V and VEE = -5V, analog signals
from -5V to +5V can be controlled by digital inputs of 0
- 5V. The multiplexer circuits dissipate extremely low quiescent
power over the full VDD-VSS and VDD-VEE supply
voltage ranges, independent of the logic state of the control
signals. When a logical “1” is present at the inhibit input terminal
all channels are “OFF”.
CD4051BC is a single 8-channel multiplexer having three
binary control inputs. A, B, and C, and an inhibit input. The
three binary signals select 1 of 8 channels to be turned
“ON” and connect the input to the output.
CD4052BC is a differential 4-channel multiplexer having
two binary control inputs, A and B, and an inhibit input. The
two binary input signals select 1 or 4 pairs of channels to
be turned on and connect the differential analog inputs to
the differential outputs.
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