製品概要
概要
The M74HC4051 is a single 8-channel analog multiplexer/demultiplexer fabricated with silicon gate C2MOS technology, pin-to-pin compatible with the equivalent metal gate CMOS4000B series. It contains 8 bidirectional and digitally controlled analog switches.
A built-in level shifting is included to allow an input range up to ± 6 V (peak) for an analog signal with digital control signal of 0 to 6 V.
The VEE supply pin is provided for analog input signals. It has an inhibit (INH) input terminal to disable all the switches when is at high level. For operation as a digital multiplexer/demultiplexer, VEE is connected to GND.
A, B and C control inputs select one channel out of eight. All inputs are equipped with protection circuits against static discharge and transient excess voltage.
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特徴
- High noise immunity:
VNIH= VNIL= 28 % VCC(min.) - Low sine wave distortion:
0.02% at VCC - VEE = 9V - Pin and function compatible with 74 series 4051
- High ON/OFF output voltage ratio
- Low crosstalk between switches
- Low power dissipation:
ICC= 4µA(max.) at TA=25°C
- Low ON resistance:
70Ω typ. (VCC - VEE = 4.5V) 50Ω typ. (VCC - VEE = 9V) - Logic level translation to enable 5V logic signal to communicate with ±5V analog signal
- Fast switching:
tpd = 15ns (TYP.) at TA = 25°C - Wide operating supply voltage range
(VCC - VEE) = 2 TO 12V - Wide analog input voltage range: ±6V
- High noise immunity:
回路ダイアグラム
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STマイクロエレクトロニクス - M74HC4051
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