Datasheet STG3684A Datasheet (ST)

Low voltage 0.5 Ω max dual SPDT switch

Features

■ Ultra low power dissipation:

I

=0.2μA (max.) at TA=85°C

CC

■ Low ON resistance V

–R

–R

■ Wide operating voltage range:

V

■ 4.3 V tolerant and 1.8 V compatible

=0.50Ω (max. TA=25°C)

ON

at V

at V

CC

=4.3V

CC

=0.50Ω (max. TA=25°C)

ON

=3.6V

CC

(OPR) = 1.65 to 4.3 V single supply

threshold on digital control input
at V

■ Latch-up performance exceeds 300 mA

= 2.3 to 4.3 V

CC

(JESD 17)

■ ESD performance:

HMB > 2 kV (MIL STD 883 method 3015)

IN

=0V:

STG3684A

with break-before-make

DFN10L

(2.3x2mm)

QFN10L

(1.8 x 1.4 mm)

Table 1. Device summary

Order code Package Packing

STG3684AUTR

STG3684ADTR

QFN10L

(1.8 x 1.4 mm)

DFN10L

(2.3 x 2 mm)

Tape and reel

Tape and reel

February 2011 Doc ID 11481 Rev 7 1/29

www.st.com

1

Contents STG3684A

Contents

1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3 Input equivalent circuit and truth table . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

6 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

2/29 Doc ID 11481 Rev 7

STG3684A List of tables

List of tables

Table 1. Device summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Table 2. Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Table 3. Truth table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Table 4. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 5. Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 6. DC specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Table 7. AC electrical characteristics (C
Table 8. Analog switch characteristics (C

Table 9. QFN10L (1.8 x 1.4 mm) mechanical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Table 10. DFN10L (2 x 2.3 mm) mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Table 11. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

=35pF, RL=50Ω, tr=tf≤ 6 ns). . . . . . . . . . . . . . . . . . . 11

L

=5pF, RL=50Ω, TA= 25 °C) . . . . . . . . . . . . . . . . . . . 12

L

Doc ID 11481 Rev 7 3/29

List of figures STG3684A

List of figures

Figure 1. Pin connection (top through view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 2. Input equivalent circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 3. ON resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 4. OFF leakage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 5. OFF isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 6. Bandwidth. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 7. Channel-to-channel crosstalk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 8. Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 9. Break-before-make time delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 10. Charge injection (V

Figure 11. Turn-on, turn-off delay time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 12. QFN10L (1.8 x 1.4 mm) package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 13. QFN10L (1.8 x 1.4 mm) footprint recommendations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 14. QFN10L (1.8 x 1.4 mm) carrier type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 15. QFN10L (1.8 x 1.4 mm) reel information - back view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 16. QFN10L (1.8 x 1.4 mm) reel information - front side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 17. DFN10L (2 x 2.3 mm) package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 18. DFN10L (2 x 2.3 mm) carrier type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Figure 19. DFN10L (2 x 2.3 mm) reel information - back view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Figure 20. DFN10L (2 x 2.3 mm) reel information - front side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

GEN

=0V, R

=0Ω, RL=1MΩ, CL= 100 pF) . . . . . . . . . . . . . . . . 17

GEN

4/29 Doc ID 11481 Rev 7

STG3684A Description

1 Description

The STG3684A is a high-speed CMOS dual analog SPDT (single-pole dual-throw) switch or
dual 2:1 multiplexer/demultiplexer bus switch fabricated using silicon gate C
technology. Designed to operate from 1.65 to 4.3 V, this device is ideal for portable
applications.
It offers very low ON resistance (R
control the independent channel switches nS1 and nS2. The switches nS1 are ON
(connected to common ports Dn) when the nIN input is held high and OFF (state of high
impedance exists between the two ports) when nIN is held low. The switches nS2 are ON
(connected to common ports Dn) when the nIN input is held low and OFF (state of high
impedance exists between the two ports) when IN is held high. 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 and excess transient voltage immunity.

<0.5Ω) at VCC= 3.6 V. The nIN inputs are provided to

ON

2

MOS

Doc ID 11481 Rev 7 5/29

Pin settings STG3684A

2 Pin settings

2.1 Pin connection

Figure 1. Pin connection (top through view)

D1

1IN

9

1S2

1S1

1

2

10

8

GND

7

2S1

V

1S2

CC

1IN

1S1

D1

V

CC

3

QFN10L (1.8 x 1.4 mm)

1

2

3

4

5

DFN10L (2.3 x 2 mm)

4

2IN

5

D2

6

2S2

10

2S2

9

D2

8

2S1

7

2IN

6

GND

6/29 Doc ID 11481 Rev 7

STG3684A Pin settings

2.2 Pin description

Table 2. Pin description

Pin number

Symbol Name and function

QFN10L DFN10L

1 5 1S2 Independent channel

2 3 1S1 Independent channel

31 V

CC

Positive voltage supply

4 7 2IN Control

5 9 D2 Common channel

6 10 2S2 Independent channel

7 8 2S1 Independent channel

8 6 GND Ground (0 V)

9 2 1IN Control

10 4 D1 Common channel

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

Doc ID 11481 Rev 7 7/29

Input equivalent circuit and truth table STG3684A

3 Input equivalent circuit and truth table

Figure 2. Input equivalent circuit

Table 3. Truth table

IN Switch S1 Switch S2

HONOFF

LOFF

(1)

(1)

ON

1. High impedance.

8/29 Doc ID 11481 Rev 7

STG3684A Maximum rating

4 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

I

CC

I

T

V

V

V

I

I

I

GND

P

Supply voltage -0.5 to 5.5 V

CC

V

DC input voltage -0.5 to VCC + 0.5 V

I

DC control input voltage -0.5 to 5.5 V

IC

DC output voltage -0.5 to VCC + 0.5 V

O

DC input diode current on control pin (VIN<0V) -50 mA

IKC

I

DC Input diode current (VIN<0V) ±50 mA

IK

DC output diode current ±20 mA

OK

I

DC output current ±300 mA

O

DC output current peak (pulse at 1 ms, 10% duty cycle) ±500 mA

OP

or

DC VCC or ground current ±100 mA

Power dissipation at TA= 70 °C 1120 mW

D

Storage temperature -65 to 150 °C

STG

T

Lead temperature (10 sec) 300 °C

L

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

V

Input voltage 0 to V

I

Control input voltage 0 to 4.3 V

IC

Output voltage 0 to V

O

Operating temperature -40 to 85 °C

op

V

= 1.65 to 2.7 V 0 to 20

Input rise and fall time control
input

CC

V

= 3.0 to 4.3 V 0 to 10

CC

CC

CC

V

V

ns/V

Doc ID 11481 Rev 7 9/29

Electrical characteristics STG3684A

5 Electrical characteristics

Table 6. DC specifications

Symbol Parameter VCC (V) Test condition

1.65 −1.95 0.65 V

2.3 −2.5 1.2 1.2

V

High level input voltage

IH

2.7 −3.0 1.3 1.3

3.0 −3.6 1.4 1.4

4.3 1.5 1.5

1.65 −1.95 0.25 0.25

2.3 −2.5 0.25 0.25

V

Low level input voltage

IL

2.7 −3.0 0.25 0.25

3.0 −3.6 0.30 0.30

4.3 0.40 0.40

4.3

3.6 0.45 0.50 0.60
= 0 V to V

V

R

Switch ON resistance

ON

3.0 0.50 0.55 0.60

S

IS= 100 mA

2.3 0.60 0.70 0.80

CC

Value

Min Typ Max Min Max

CC

0.65 V

CC

0.45 0.50 0.60

UnitTA= 25 °C -40 to 85 °C

V

V

Ω

ΔR

R

I

ON resistance match

ON

between channels

ON resistance

FLAT

flatness

OFF state leakage

OFF

current (nSn), (Dn)

I

Input leakage current 0 −4.3 V

IN

Quiescent supply

I

CC

current

(3)

(1)

(1),(2)

1.8 0.80 0.9 1.0

=1.5V

V

2.7

4.3

S

I

= 100 mA

S

0.1 Ω

0.15 0.20 0.20

3.6 0.15 0.20 0.20

3.0 0.15 0.20 0.20

2.7 0.15 0.20 0.20

V

=1.5V

S

I

= 100 mA

S

2.3 0.20 0.25 0.25

1.65 0.35 0.45 0.45

4.3 V

1.65 −4.3 V

= 0.3 or 4 V ±20 ±100 nA

S

= 0 to 4.3 V ±0.05 ±1 μA

IN

= VCC or GND ±0.05 ±0.2 μA

IN

Ω

10/29 Doc ID 11481 Rev 7

STG3684A Electrical characteristics

Table 6. DC specifications (continued)

Value

Symbol Parameter VCC (V) Test condition

Min Typ Max Min Max

V

1IN, V2IN

1.65 V

I

CCLV

Quiescent supply
current low voltage
driving

4.3

V

1IN, V2IN

1.80 V

V

1IN, V2IN

2.60 V

1. Guaranteed by design.

2. ΔR

ON=RON(max)-RON(min)

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 7. AC electrical characteristics (CL= 35 pF, RL=50Ω, tr=t

S

.

=

=

=

±37 ±50 ±100

±33 ±40 ±50

±12 ±20 ±30

≤

6ns)

f

Value

Symbol Parameter V

(V) Test condition

CC

Min Typ Max Min Max

1.65 −1.95 0.45

t

PLH,

t

PHL

Propagation delay

2.3 −2.7 0.40

3.0 −3.3 0.30

UnitTA= 25 °C -40 to 85 °C

μA

UnitTA = 25 °C -40 to 85 °C

ns

t

t

OFF

Turn-ON time

ON

Turn-OFF time

Break-before make time

t

D

delay

3.6 −4.3 0.30

1.65 −1.95 V

2.3 −2.7

3.0 −3.3 42 55 65

= 0.8 V 120

S

=1.5V

V

S

65 85 90

3.6 −4.3 40 55 65

1.65 −1.95 V

2.3 −2.7

3.0 −3.3 16 30 40

=0.8V 45

S

V

=1.5V

S

18 30 40

3.6 −4.3 15 30 40

1.65 −1.95

C

=35pF

2.3 −2.7 2 60

3.0 −3.3 2 55

L

R

L

V

S

=50Ω
=1.5V

280

3.6 −4.3 2 50

ns

ns

ns

Doc ID 11481 Rev 7 11/29

Electrical characteristics STG3684A

Table 7. AC electrical characteristics (CL= 35 pF, RL=50Ω, tr=t

≤

6 ns) (continued)

f

Value

Symbol Parameter V

(V) Test condition

CC

Min Typ Max Min Max

1.65 −1.95
C

= 100 pF

Q Charge injection

2.3 −2.7 51

3.0 −3.3 51

3.6 −4.3 49

Table 8. Analog switch characteristics (CL=5pF, RL=50Ω, TA= 25 °C)

R
V
R

L

L

GEN

GEN

=1MΩ

=0V
=0Ω

43

Value

Symbol Parameter VCC (V) Test condition

Min Typ Max Min Max

=1V

OIRR Off isolation

(1)

1.65 −4.3

Xtalk Crosstalk 1.65 −4.3

THD

Tota l ha r m oni c
distortion

2.3 −4.3

V

S

RMS

f = 100 kHz

=1V

V

S

RMS

f = 100 kHz

R

= 600 Ω

L

V

=2V

IN

PP

f=20Hz to

-66 dB

-72 dB

0.02 %

20 kHz

UnitTA = 25 °C -40 to 85 °C

pC

UnitTA= 25 °C -40 to 85 °C

BW -3 dB bandwidth 1.65 −4.3 R

C

C

1. Off Isolation = 20 Log10 (VD/VS), VD = output. VS = input at off switch.

Control pin input

IN

capacitance

Sn port capacitance 3.3 f = 1 MHz 40

Sn

D port capacitance

D

when switch is enabled

3.3 f = 1 MHz 114

=50Ω 55 MHz

L

5

pFC

12/29 Doc ID 11481 Rev 7

STG3684A Test circuit

6 Test circuit

Figure 3. ON resistance

I

DS

V

V

CC

S1

VS

S2

GND

IN

GND

D

CS14071

Doc ID 11481 Rev 7 13/29

Test circuit STG3684A

Figure 4. OFF leakage

9

&&

,

62))

$

9

66

9

&&

Figure 5. OFF isolation

,

'2))

'

$

9

'

6

,1

*1'

&6

9

&&

6



9

287

6

,1

*1'

9

6

*1'

14/29 Doc ID 11481 Rev 7

#3

STG3684A Test circuit

Figure 6. Bandwidth

V

CC

S1

S2

V

V

S

IN

CC

Figure 7. Channel-to-channel crosstalk

GND

50 Ω

V

OUT

CS00371

#36

Doc ID 11481 Rev 7 15/29

Test circuit STG3684A

Figure 8. Test circuit

1. CL= 5/35 pF or equivalent (includes jig and probe capacitance).
R

=50Ω or equivalent.

L

RT=Z

Figure 9. Break-before-make time delay

of pulse generator (typically 50 Ω).

OUT

#36

#36

16/29 Doc ID 11481 Rev 7

STG3684A Test circuit

Figure 10. Charge injection (V

GEN

=0V, R

=0Ω, RL=1MΩ, CL= 100 pF)

GEN

Doc ID 11481 Rev 7 17/29

Test circuit STG3684A

Figure 11. Turn-on, turn-off delay time

18/29 Doc ID 11481 Rev 7

STG3684A Package mechanical data

7 Package mechanical data

In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK

®

packages, depending on their level of environmental compliance. ECOPACK®

®

is an ST trademark.

Figure 12. QFN10L (1.8 x 1.4 mm) package outline

1. Drawing not to scale.

Doc ID 11481 Rev 7 19/29

Package mechanical data STG3684A

Table 9. QFN10L (1.8 x 1.4 mm) mechanical data

millimeters inches

Symbol

Nom Min Max Nom Min Max

A 0.50 0.45 0.55 0.020 0.017 0.021

A1 0.02 0 0.05 0.001 0 0.002

A3 0.127 0.005 0 0

b 0.20 0.15 0.25 0.007 0.006 0.010

D 1.80 1.70 1.90 0.070 0.066 0.074

E 1.40 1.30 1.50 0.055 0.051 0.059

e 0.40 0.015

L 0.40 0.30 0.50 0.015 0.011 0.020

Figure 13. QFN10L (1.8 x 1.4 mm) footprint recommendations

1. Drawing not to scale.

20/29 Doc ID 11481 Rev 7

STG3684A Package mechanical data

Figure 14. QFN10L (1.8 x 1.4 mm) carrier type

1. Drawing not to scale.

!-

Doc ID 11481 Rev 7 21/29

Package mechanical data STG3684A

Figure 15. QFN10L (1.8 x 1.4 mm) reel information - back view

1. Drawing not to scale.

22/29 Doc ID 11481 Rev 7

!-

STG3684A Package mechanical data

Figure 16. QFN10L (1.8 x 1.4 mm) reel information - front side

1. Drawing not to scale.

!-

Doc ID 11481 Rev 7 23/29

Package mechanical data STG3684A

Figure 17. DFN10L (2 x 2.3 mm) package outline

!

1. Drawing not to scale.

Table 10. DFN10L (2 x 2.3 mm) mechanical data

millimeters mils

Symbol

Min Typ Max Min Typ Max

A 0.50 0.55 0.60 19.7 21.7 23.6

A1 0.02 0.05 0.8 2.0

b 0.15 0.20 0.25 5.9 7.9 9.8

D 2.20 2.30 2.40 86.6 90.6 94.5

D2 1.65 1.70 1.75 65.0 66.9 68.9

E 1.90 2 2.10 74.8 78.7 82.7

E2 0.15 0.20 0.25 5.9 7.9 9.8

e 0.40 15.7

L 0.35 0.40 0.45 13.8 15.7 17.7

K 0.20 7.9

24/29 Doc ID 11481 Rev 7

STG3684A Package mechanical data

Figure 18. DFN10L (2 x 2.3 mm) carrier type

+

"

!
"
+

1. Drawing not to scale.

!





#/6%2

$&.,

Doc ID 11481 Rev 7 25/29

Package mechanical data STG3684A

Figure 19. DFN10L (2 x 2.3 mm) reel information - back view

1. Drawing not to scale.

26/29 Doc ID 11481 Rev 7

!-

STG3684A Package mechanical data

Figure 20. DFN10L (2 x 2.3 mm) reel information - front side

1. Drawing not to scale.

!-

Doc ID 11481 Rev 7 27/29

Revision history STG3684A

8 Revision history

Table 11. Document revision history

Date Revision Changes

04-Jul-2005 1 First release.

22-Aug-2005 2 The V

15-May-2006 3 New template, few updates.

21-Jun-2006 4 Mechanical data updated.

Removed STG3684QTR order code, small text changes, updated

10-Sept-2007 5

15-Nov-2007 6

04-Feb-2011 7

Figure 3 on page 13, Figure 4 on page 14, Figure 5 on page 14,
Figure 6 on page 15, layout restructured.

Added list of tables and list of figures, updated Features Section on

page 1 and T

125
changes to the text and layout.

Document reformatted, updated Features, Section 1: Description,

Ta b le 6 , ECOPACK text, corrected typo in Tab le 2 to Ta bl e 8 ,
Figure 7, Figure 9.

and VIC values has been changed on Table 4 on page 9.

CC

value in Table 5 on page 9, removed the -55 to -

op

° C values in Table 6 on page 10 and Table 7 on page 11, minor

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STG3684A

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