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STG3856QTR
Low voltage 1.0惟 max dual SP3T switch with break-before-make feature
March 2010 Doc ID 11932 Rev 3 1/15
STG3856Low voltage 1.0 Ω max dual SP3T switch
with break-before-make feature
Features High speed:
–tPD= 0.3 ns (typ.) at VCC =3.0V
–tPD= 0.4 ns (typ.) at VCC =2.3V Ultra low power dissipation:
–ICC =0.2 µA (max.) at TA =85°C Low ON resistance VIN =0V:
–RON =1.0 Ω(max. TA =25°C) at
VCC =4.3V
–RON =1.5 Ω (max. TA =25°C) at
VCC =3.0V
–RON =1.8 Ω (max. TA =25°C) at
VCC =2.3V Wide operating voltage range:
–VCC (opr)= 1.65 V to 4.3 V single supply 4.3 V tolerant and 1.8 V compatible threshold
on digital control input at VCC= 2.3 to 4.3V Latch-up performance exceeds 300 mA
(JESD 17) ESD performance (analog channel vs. GND):
HBM>2 kV (MIL STD 883 method 3015)
DescriptionThe STG3856 is a high-speed CMOS low voltage
dual analog SP3T (single pole triple throw) switch
or dual 3: 1 multiplexer /demultiplexer switch
fabricated in silicon gate C2 MOS technology. It is
designed to operate from 1.65 V to 4.3V , making
this device ideal for portable applications.
The device offers very low ON resistance 1.0 Ω) at VCC= 4.3 V. The disabling and
enabling of switches are done by setting the 1IN
and 2IN control pins. Additional key features are
fast switching speed, and ultra low 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
Summary description STG38562/15 Doc ID 11932 Rev 3
1 Summary description
1.1 Pin connections and description
Figure 1. Connection diagram (top through view)
Table 2. Pin description
1.2 Truth table
Table 3. Truth table
STG3856 Summary descriptionDoc ID 11932 Rev 3 3/15
1.3 Internal schematic
Figure 2. Internal schematic
1.4 Input equivalent circuit
Figure 3. Input equivalent circuit
Maximum ratings STG38564/15 Doc ID 11932 Rev 3
2 Maximum ratingsStressing the device above the rating listed in the “absolute maximum ratings” table may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in the operating sections of
this specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability.
Table 4. Absolute maximum ratings Derate above 70ºC by 18.5mW/C.
STG3856 Electrical characteristicsDoc ID 11932 Rev 3 5/15
3 Electrical characteristics
Table 5. Recommended operating conditions
3.1 DC electrical characteristics Truth table guaranteed: 1.2 V to 4.3V.
Table 6. DC electrical characteristics
Electrical characteristics STG38566/15 Doc ID 11932 Rev 3 ΔRon = max |mSN-nSN|, where m= 1 and n= 2, N= 1..3 Flatness is defined as the difference between the maximum and minimum value of ON resistance as
measured over the specified analog signal ranges.
Table 6. DC electrical characteristics (continued)
STG3856 Electrical characteristicsDoc ID 11932 Rev 3 7/15
3.2 AC electrical characteristics
Table 7. AC electrical characteristics (CL = 35 pF , RL = 50Ω , tr = tf ≤ 5ns)
Electrical characteristics STG38568/15 Doc ID 11932 Rev 3
3.3 Analog switch
Table 8. Analog switch characteristics (CL =5pF, RL =50Ω, TA =25°C) OFF Isolation=20 Log10 (VD/VS), VD= output, VS= input at off switch
