四路模拟开关与电平转换器 Quad Analog Switch with Level Translator
General Description
The MM74HC4316 devices are digitally controlled analog switches implemented in advanced silicon-gate CMOS technology. These switches have low “ON” resistance and low “OFF” leakages. They are bidirectional switches, thus any analog input may be used as an output and vice-versa. Three supply pins are provided on the MM74HC4316 to implement a level translator which enables this circuit to operate with 0–6V logic levels and up to ±6V analog switch levels. The MM74HC4316 also has a common enable input in addition to each switch"s control which when HIGH will disable all switches to their OFF state. All analog inputs and outputs and digital inputs are protected from electro static damage by diodes to VCC and ground.
Features
■ Typical switch enable time: 20 ns
■ Wide analog input voltage range: ±6V
■ Low “ON” resistance:
50 typ. VCC−VEE = 4.5V 30 typ. VCC−VEE = 9V
■ Low quiescent current: 80 µA maximum 74HC
■ Matched switch characteristics
■ Individual switch controls plus a common enable