CMOS Analog Multiplexers/Demultiplexers with Logic Level Conversion
The CD4051B, CD4052B, and CD4053B analog multiplexers are
digitally-controlled analog switches having low ON impedance and
very low OFF leakage current. Control of analog signals up to
20VP-P can be achieved by digital signal amplitudes of 4.5V to 20V
(if VDD-VSS = 3V, a VDD-VEE of up to 13V can be controlled; for
VDD-VEE level differences above 13V, a VDD-VSS of at least 4.5V is
required).
For example, if VDD = +4.5V, VSS = 0V, and VEE = -13.5V, analog
signals from -13.5V to +4.5V can be controlled by digital inputs of
0V to 5V. These 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 logic “1” is present at the inhibit input terminal, all channels
are off.
Features
• Wide Range of Digital and Analog Signal Levels
- Digital . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 3V to 20V
- Analog. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. ≤20VP-P
• Low ON Resistance, 125Ω (Typ) Over 15VP-P
Signal Input Range for VDD-VEE = 18V
• High OFF Resistance,
Channel Leakage of ±100pA (Typ) at VDD-VEE = 18V
• Logic-Level Conversion for Digital
Addressing Signals of 3V to 20V (VDD-VSS = 3V to 20V) to
Switch Analog Signals to 20VP-P (VDD-VEE = 20V)
• Matched Switch Characteristics, rON = 5Ω (Typ) for VDD-VEE = 15V
• Very Low Quiescent Power Dissipation
Under All DigitalControl Input and Supply Conditions,
0.2µW (Typ) at VDD-VSS = VDD-VEE = 10V
Typical Performance Curves
Functional Block Diagrams
