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MC74VHC4051DR2 Datasheet(PDF) 11 Page - ON Semiconductor |
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MC74VHC4051DR2 Datasheet(HTML) 11 Page - ON Semiconductor |
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11 / 16 page  MC74VHC4051, MC74VHC4052, MC74VHC4053 http://onsemi.com 11 RL Figure 24. Crosstalk Between Any Two Switches, Test Set--Up Figure 25. Power Dissipation Capacitance, Test Set--Up Figure 26. Total Harmonic Distortion, Test Set--Up Figure 27. Plot, Harmonic Distortion 0 --10 --20 --30 --40 --50 --100 1.0 2.0 3.125 FREQUENCY (kHz) --60 --70 --80 --90 FUNDAMENTAL FREQUENCY DEVICE SOURCE ON 6 7 8 16 VEE CL* *Includes all probe and jig capacitance OFF RL RL VIS RL CL* VOS fin 0.1μF ON/OFF 6 7 8 16 VCC CHANNEL SELECT NC COMMON O/I OFF/ON ANALOG I/O VCC A 11 VCC VEE ON 6 7 8 16 VCC VEE 0.1μF CL* fin RL TO DISTORTION METER *Includes all probe and jig capacitance VOS VIS APPLICATIONS INFORMATION The Channel Select and Enable control pins should be at VCC or GND logic levels. VCC being recognized as a logic high and GND being recognized as a logic low. In this example: VCC = +5V = logic high GND = 0V = logic low The maximum analog voltage swings are determined by the supply voltages VCC and VEE. The positive peak analog voltage should not exceed VCC. Similarly, the negative peak analog voltage should not go below VEE. In this example, the difference between VCC and VEE is ten volts. Therefore, using the configuration of Figure 28, a maximum analog signal of ten volts peak--to--peak can be controlled. Unused analog inputs/outputs may be left floating (i.e., not connected). However, tying unused analog inputs and outputs to VCC or GND through a low value resistor helps minimize crosstalk and feedthrough noise that may be picked up by an unused switch. Although used here, balanced supplies are not a requirement. The only constraints on the power supplies are that: VCC -- GND = 2 to 6 volts VEE -- GND = 0 to --6 volts VCC -- VEE = 2 to 12 volts and VEE ≤ GND When voltage transients above VCC and/or below VEE are anticipated on the analog channels, external Germanium or Schottky diodes (Dx) are recommended as shown in Figure 29. These diodes should be able to absorb the maximum anticipated current surges during clipping. |
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