1. General description
The NX3L4357 is a low-ohmic single-pole triple-throw analog switch suitable for use as an
analog or digital 3:1 multiplexer/demultiplexer. It has two digital select inputs (S0 and S1),
one digital enable input (E
), three independent inputs/outputs (Y0, Y1 and Y2) and a
common input/output (Z). The device features a broadcast mode, when S0 and S1 are
both high the signal applied to pin Z is passed to Y0, Y1 and Y2.
Schmitt trigger action at the digital inputs makes the circuit tolerant to slower input rise and
fall times. Low threshold digital inputs allows this device to be driven by 1.8 V logic levels
in 3.3 V applications without significant increase in supply current I
CC
. This makes it
possible for the NX3L4357 to switch 4.3 V signals with a 1.8 V digital controller,
eliminating the need for logic level translation. The NX3L4357 allows signals with
amplitude up to V
CC
to be transmitted from Z to Yn or Yn to Z. Its low ON resistance (0.5
) and flatness (0.13 ) ensures minimal attenuation and distortion of transmitted signals.
2. Features and benefits
Wide supply voltage range from 1.4 V to 4.3 V
Very low ON resistance (peak):
1.65 (typical) at V
CC
=1.4V
0.95 (typical) at V
CC
=1.65V
0.55 (typical) at V
CC
=2.3V
0.50 (typical) at V
CC
=2.7V
0.50 (typical) at V
CC
=4.3V
Break-before-make switching
High noise immunity
ESD protection:
HBM JESD22-A114F Class 3A exceeds 7500 V
MM JESD22-A115-A exceeds 200 V
CDM AEC-Q100-011 revision B exceeds 1000 V
IEC61000-4-2 contact discharge exceeds 6000 V for switch ports
CMOS low-power consumption
Latch-up performance exceeds 100 mA per JESD 78B Class II Level A
1.8 V control logic at V
CC
= 3.6 V
Control input accepts voltages above supply voltage
Very low supply current, even when input is below V
CC
High current handling capability (350 mA continuous current under 3.3 V supply)
Specified from 40 C to +85 C and from 40 C to +125 C
NX3L4357
Low-ohmic single-pole triple-throw analog switch with enable
input
Rev. 5 — 18 June 2012 Product data sheet
