This is information on a product in full production.
August 2013 DocID15992 Rev 4 1/20
STG3820
Low voltage high bandwidth quad DPDT switch
Datasheet - production data
Features
Ultralow power dissipation
–I
CC
= 1 µA (max.) at T
A
= 85 °C
Low “ON” resistance
–R
ON
= 5.4 (T
A
= 25 °C) at V
CC
= 4.3 V
–R
ON
= 6.6 (T
A
= 25 °C) at V
CC
= 3.0 V
Wide operating voltage range
–V
CC
(OPR.) = 1.65 V to 4.3 V
4.3 V tolerant and 1.8 V compatible threshold
on digital control input at V
CC
= 2.3 V to 3.0 V
4 select pins controlling 2 switches each
Typical bandwidth (-3 dB) at 800 MHz on all
channels
USB (2.0) high speed (480 Mbps) signal
switching compliant
Integrated fail safe function
Latch-up performance exceeds 100 mA per
JESD 78, Class II
ESD performance exceeds JESD22
2000-V human body model (A114-A)
Applications
Mobile phones
Description
The STG3820 device is a high-speed CMOS low
voltage quad analog DPDT (dual pole dual throw)
switch or 2:1 multiplexer/demultiplexer switch
fabricated in silicon gate C
2
MOS technology. It is
designed to operate from 1.65 V to 4.3 V, making
this device ideal for portable applications.
The SELm-n input is provided to control the
switches. The switches nS1 and mS1 are ON
(connected to common ports Dn and Dm
respectively) when the SELm-n input is held high
and OFF (high impedance state exists between
the two ports) when the SELm-n is held low. The
switches nS2 and mS2 are ON (connected to
common port Dn and Dm respectively) when the
SELm-n input is held low and OFF (high
impedance state exists between the two ports)
when the SELm-n is held high.
The STG3820 device has an integrated fail safe
function to withstand overvoltage condition when
the device is powered off. Additional key features
are fast switching speed, break-before-make-
delay time and ultralow power consumption. All
inputs and outputs are equipped with protection
circuits against static discharge, giving them ESD
immunity and transient excess voltage.
Table 1. Device summary
Flip Chip 30
(2.0 x 2.4 mm)
Order code Package Packing
STG3820BJR
Flip Chip 30
(2.0 x 2.4 mm)
Tape and reel
www.st.com
