![](http://datasheet.mmic.net.cn/Maxim-Integrated-Products/MAX14505EWC-T_datasheet_98101/MAX14505EWC-T_9.png)
MAX14504/MAX14505/MAX14505A/MAX14506
Dual SPDT Negative Rail Analog Switches
with ±VCC Capability
_______________________________________________________________________________________
9
Detailed Description
The MAX14504/MAX14505/MAX14505A/MAX14506 are
low on-resistance, low-voltage, dual SPDT analog
switches that operate from a +2.3V to +5.5V single
supply. These devices feature a negative signal capa-
bility that allows signals as low as -VCC to pass through
without distortion.
The MAX14504/MAX14505/MAX14505A/MAX14506
have an enable input EN to put the switches in a high-
impedance mode. When EN = VCC, the MAX14504/
MAX14505 terminals have a signal range of -VCC to
+VCC. The MAX14505A/MAX14506 terminals have a sig-
nal range of 0 to +VCC. The MAX14505A/MAX14506 fea-
ture a low supply current when EN = VCC.
The MAX14505/MAX14505A have internal shunt switch-
es on both NO1 and NO2 terminals to suppress click-
and-pop sounds that can occur when switching audio
signals between precharged points.
Functional Diagram/Truth Table
MAX14504/
MAX14506
NC1
COM1
VCC
NC2
NO1
COM2
NO2
NC1
NC2
NO1
NO2
NEG
CB
EN
GND
CNEG
NEG
CNEG
COM1
COM2
MAX14505/
MAX14505A
VCC
CB
EN
GND
ON
OFF
SHUNT SWITCH
(MAX14505/MAX14505A)
X
EN
0
1
CB
X = DON'T CARE.
HIGH IMPEDANCE
ON
OFF
COM_ TO NC_
HIGH IMPEDANCE
OFF
ON
COM_ TO NO_
1
0
X
0
1
CB
X = DON'T CARE.
EN