MAX14504 Datasheet, PDF (9/12 Pages) Maxim Integrated Products – Internal Shunt Switches Reduce Click/Pop

Dual SPDT Negative Rail Analog Switches
with ±V_CC Capability
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 -V_CC 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 = V_CC, the MAX14504/
MAX14505 terminals have a signal range of -V_CC to
+V_CC. The MAX14505A/MAX14506 terminals have a sig-
nal range of 0 to +V_CC. The MAX14505A/MAX14506 fea-
ture a low supply current when EN = V_CC.
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
V_CC
V_CC
MAX14504/
MAX14506
MAX14505/
MAX14505A
NC1
NC1
COM1
COM1
NC2
NC2
COM2
COM2
NO1
NO1
NO2
NO2
NEG
C_NEG
CB EN
GND
EN
CB
1
X
0
0
0
1
X = DON'T CARE.
COM_ TO NC_
HIGH IMPEDANCE
ON
OFF
COM_ TO NO_
HIGH IMPEDANCE
OFF
ON
NEG
C_NEG
CB EN
GND
EN
CB
X
0
X
1
X = DON'T CARE.
SHUNT SWITCH
(MAX14505/MAX14505A)
ON
OFF
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