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CD4066BC_05 Datasheet, PDF (4/9 Pages) Fairchild Semiconductor – Quad Bilateral Switch
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Typical Performance Characteristics
“ON” Resistance vs Signal
Voltage for TA = 25°C
“ON” Resistance as a Function
of Temperature for
VDD−VSS = 15V
“ON” Resistance as a Function
of Temperature for
VDD−VSS = 10V
“ON” Resistance as a Function
of Temperature for
VDD−VSS = 5V
Special Considerations
In applications where separate power sources are used to
drive VDD and the signal input, the VDD current capability
should exceed VDD/RL (RL = effective external load of the 4
CD4066BC bilateral switches). This provision avoids any
permanent current flow or clamp action of the VDD supply
when power is applied or removed from CD4066BC.
In certain applications, the external load-resistor current
may include both VDD and signal-line components. To
avoid drawing VDD current when switch current flows into
terminals 1, 4, 8 or 11, the voltage drop across the
bidirectional switch must not exceed 0.6V at TA ≤ 25°C, or
0.4V at TA > 25°C (calculated from RON values shown).
No VDD current will flow through RL if the switch current
flows into terminals 2, 3, 9 or 10.
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