ST STG3482 User Manual

Features

■ Ultra low power dissipation:

–I

■ Low “ON” resistance:

–R
–R

■ Wide operating voltage range:

–V

■ 4.3 V tolerant and 1.8 V compatible threshold

on digital control input at V

■ Typical bandwidth (-3dB) at 300 MHz on all

channels

■ Latch-up performance exceeds 300 mA per

JESD 78, Class II

■ ESD performance exceeds JESD22

– 2000-V Human body model (A114-A)

=0.1μA (max.) at TA=25°C

CC

=4.6Ω (TA= 25°C) at VCC=4.3V

ON

= 5.8Ω (TA= 25 °C) at VCC=3.0V

ON

(Opr) = 1.65 to 4.3 V single supply

CC

= 2.3 to 3.0 V

CC

STG3482

Low voltage dual SP4T switch

QFN16L (2.6 x 1.8 mm)

Description

The STG3482 is a high-speed CMOS low voltage
dual analog SP4T (single pole four throw) switch
or 4:1 multiplexer/demultiplexer switch fabricated
in silicon gate C
to operate from 1.65 to 4.3 V, making this device
ideal for portable applications.

2

MOS technology. It is designed

Table 1. Device summary

Order code Package Packaging

STG3482QTR QFN16L (2.6 x 1.8 mm) Tape and reel

By controlling the SEL1 and SEL2, one of the
independent channels will be connected to the
common channel. An /OE pin is also available in
this device to disconnect all the switches.

Additional key features are fast switching speed,
break-before-make delay time 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.

November 2007 Rev 2 1/14

www.st.com

14

Contents STG3482

Contents

1 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2 Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.1 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

5 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

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STG3482 Pin settings

1 Pin settings

Figure 1. Pin connection (top through view)

1.1 Pin description

Table 2. Pin description

Pin number Symbol Name and function

1 1S4 Independent channel

2V

3 1SEL Control

1S4

V

CC

1SEL

2S1

1S3D11S2

16 15 14 13

1

2

Control

3

4

5678

NC

2S2D22S3

CC

12

11

10

9

/OE

1S1

GND

2SEL

2S4

CS00019

Positive supply voltage

4 2S1 Independent channel

5 NC No connect

6 2S2 Independent channel

7 D2 Common channels

8 2S3 Independent channel

9 2S4 Independent channel

10 2SEL Control

11 GND Ground (0V)

12 1S1 Independent channel

13 /OE Output enable (active low)

14 1S2 Independent channel

15 D1 Common channel

16 1S3 Independent channel

Note: Exposed pad must be soldered to a floating plane. Do NOT connect to power or ground.

3/14

Device summary STG3482

2 Device summary

Figure 2. Input equivalent circuit

S1

S2

S3

S4

Table 3. Truth table

D

1SEL
2SEL

/OE

/OE 1SEL 2SEL Switch connection

H X X High-Z

L L L D1-1S1, D2-2S1

L L H D1-1S2, D2-2S2

L H L D1-1S3, D2-2S3

L H H D1-1S4, D2-2S4

CS003001

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STG3482 Maximum rating

3 Maximum rating

Stressing 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. Refer also to the STMicroelectronics SURE
Program and other relevant quality documents.

Table 4. Absolute maximum ratings

Symbol Parameter Value Unit

V

V

I

I

I

I

CC

I

GND

T

1. Derate above 70 ºC by 18.5 mW/C

Supply voltage -0.5 to 5.5 V

CC

V

DC input voltage

I

DC control input voltage -0.5 to 5.5 V

IC

V

DC output voltage

O

DC input diode current on control pin (V

IKC

I

DC input diode current (V

IK

DC output diode current ±20 mA

OK

I

DC output current ±128 mA

O

DC output current peak (pulse at 1ms, 10% duty cycle) ±300 mA

OP

or

DC VCC or ground current

P

Power dissipation at TA = 70ºC

D

Storage temperature -65 to 150 °C

stg

T

Lead temperature (10 sec) 300 °C

L

SEL

<0V)

(1)

SEL

<0V)

-0.5 to V

-0.5 to V

CC

CC

-50 mA

±50 mA

±100 mA

1120 mW

+ 0.5

+ 0.5

V

V

3.1 Recommended operating conditions

Table 5. Recommended operating conditions

Symbol Parameter Value Unit

V

V

V

T

dt/dv

Supply voltage 1.65 to 4.3 V

CC

Input voltage 0 to V

V

I

Control input voltage 0 to 4.3 V

IC

Output voltage 0 to V

O

Operating temperature -40 to 85 °C

op

= 1.65 to 2.7 V

V

Input rise and fall time control
input

CC

= 3.0 to 4.3 V

V

CC

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0 to 20

0 to 10

CC

CC

V

V

ns/V