ST STG3680 User Manual

LOW VOLTAGE 0.5/0.8Ω MAX DUAL SPDT SWITCH

WITH BREAK BEFORE MAKE FEATURE

■ HIGH SPEED:

t

= 0.3ns (TYP.) at VCC=3.0V

PD

t

= 0.4ns (TYP.) at VCC=2.3V

PD

■ ULTRA LOW POWER DISSIPATION:

I

=0.2µA (MAX.)at TA= 85°C

CC

■ LOW "ON" RESISTANCE V

R
R

■ WIDE OPERATING VOLTAGE RANGE:

V

■ 4.3V TOLERANT AND 1. 8V COMPATIBLE

=0.5Ω (MAX. TA= 25°C) at VCC=2.7V

ON-S1

=0.8Ω (MAX. TA= 25°C) at VCC=2.7V

ON-S2

(OPR) = 1.65V to 4.3V SINGLE SUPPLY

CC

THRESHOLD ON DIGITALCONTROL I NPUT
at V

■ LATCH-UP PERFORMANCE EXCEE DS

= 2.3 to 3. 0V

CC

300mA (JESD 17)

DESCRIPTION

The STG3680 is an high-speed CMOS DUAL
ANALOG S.P.D.T. (Single Pole Dual T hrow)
SWITCH or DUAL 2:1 Multiplexer/Demultiplexer
Bus Switch fabricated in silicon gate C
technology. It is designed t o operate from 1.65V to

4.3V, making this device ideal for portable
applications.
It o ffers very low ON-Resistance (<0.5
2S1 channels; <0.8
V

=2.7V. The nIN inputs are provided to control

CC

Ω 1S2 and 2S2 channels) at

the swi tches. The switches nS1 are ON (they are

IN

=0V:

2

MOS

Ω 1S1 and

STG3680

QFN

ORDER CODES

PACKAGE T & R

QFN STG3680QTR

connected to c ommon Ports Dn) w hen the nIN
input is held high and OFF (high impedance state
exists between the two ports) when nIN is held
low; the switches nS2 are ON (they are connected
to common Ports Dn) when the nIN input is held
low and OFF (high impedance state 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 outp uts are
equipped with protection circuits against static
discharge, giving them ESD immunity a nd
transient excess voltage. It’s available in the
commercial temperature range in the QF N
package.

PIN CONNECTION

Rev. 3

1/11May 2004

STG3680

Figure 1: Input Equivalent Circuit Table 1: Pin Description

QFN

PIN N°

SYMBOL

NAME AND

FUNCTION

1, 9 1IN, 2IN Controls

2, 10
4, 12

1S1 to 2S1
1S2 to 2S2

Independent Chan­nels

3, 11 D1, D2 Common Channels

5,7,8,13,15,16 NC Not Connected

6 GND Ground (0V)

14 V

CC

PositiveSupply
Voltage

Table 2: Truth Table

IN SWITCH S1 SWITCH S2

H ON OFF(*)

L OFF(*) ON

(*) High Impedance

Table 3: Absolute Maximum Ratings

Symbol Parameter Value Unit

V

V

V

V

I

IKC

I

I

OK

I

I

OP

or I

I

CC

P

T

T

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied.
(1) Derate above 70°C: by 18.5mW/°C.

Supply Voltage

CC

DC Input Voltage -0.5 to VCC+0.5

I

DC Control Input Voltage

IC

DC Output Voltage -0.5 to VCC+0.5

O

DC Input Diode Current on control pin (VIN<0V)
DC InputDiode Current (VIN<0V)

IK

DC Output Diode Current
DC Output Current

O

DC Output Current Peak (pulse at 1ms, 10% duty cycle)
DC VCCor Ground Current

GND

Power Dissipation at Ta=70°C (1)

D

Storage Temperature

stg

Lead Temperature (10 sec)

L

-0.5 to 4.6 V
V

-0.5 to 4.6 V
V

− 50 mA
± 50 mA

± 20 mA
± 300 mA
± 500 mA
± 100 mA

1120 mW

-65 to 150 °C
300 °C

Table 4: Recommended Operating Conditions

Symbol Parameter Value Unit

V

V

V

V

T

dt/dv

1) Truth Table guaranteed: 1.2V to 4.3V.

Supply Voltage (note 1)

CC

Input Voltage 0 to V

I

Control Input Voltage

IC

Output Voltage 0 to V

O

Operating Temperature

op

Input Rise and Fall Time Control Input V

= 1.65V to 2.7V

CC

V

= 3.0V to 4.3V

CC

1.65 to 4.3 V

CC

0to4.3 V

CC

-55 to 125 °C
0to20
0to10

2/11

V

V

ns/V

Table 5: DC Specifications

Test Conditions Value

Symbol Parameter

V

High Level

IH

Input Voltage

V

Low Level

IL

Input Voltage

R

ON-S1

Switch
ON-S1
Resistance
(1)

R

ON-S2

Switch
ON-S2
Resistance
(1)

∆R

ON

ON Resist.
Match
between
channels
(1, 2)

FLAT

ON
Resistance

R

FLATNESS
(3)

OFF State

I

OFF

Leakage
Current
(nSn), (Dn)

Input Leak.

I

IN

Current

I

Quiescent

CC

Supply
Current (1)

V

CC

(V)

1.65-1.95 0.65V

2.3-2.5

2.7-3.0

3.3 1.5

3.6

4.3

1.65-1.95 0.40 0.40 0.40

2.3-2.5

2.7-3.6

3.3 0.50 0.50 0.50

3.6

4.3 1.3 1.3 1.3

4.3

3.0 0.80 0.80

2.7 0.80 0.80

2.3 2 2

1.8 4.0 5.0

1.65 4.0 5.0

4.3

3.0 0.40 0.50 0.60

2.7 0.40 0.50 0.60

2.3 0.50 0.80 0.80

1.8 0.70 3.0 4.0

1.65 0.80 3.0 4.0

2.7

4.3

3.0

2.7 0.07 0.15 0.15

2.3

1.65 V

4.3

0-4.3 VIN=0to3.6V ±0.1 ± 1 µA

1.65-4.3 VIN=VCCor

STG3680

=25°C

T

A

Min. Typ. Max. Min. Max. Min. Max.

CC

1.4 1.4 1.4

1.4 1.4 1.4

1.7 1.7 1.7

2.2 2.2 2.2

0.50 0.50 0.50

0.50 0.50 0.50

0.50 0.50 0.50

0.80 0.80

=0V to V

V

S

CC

IS=100mA

0.40 0.50 0.60

=0V to V

V

S

CC

IS=100mA

=1.5V

V

S

I

=100mA

S

=1.5V

V

S

I

=100mA

S

=0.8V

S

I

=100mA

S

0.06 Ω

VS=0.3or 4V ±10 ± 100 nA

±0.05 ±0.2 ±1 µA

GND

-40 to 85°C -55 to 125°C

0.65V

CC

0.65V

CC

1.5 1.5

Unit

V

V

Ω

Ω

Ω

Note 1:Guaranteedbydesign
Note 2:∆R
Note 3: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified
analog signal ranges.

ON=RON(MAX)-RON(MIN)

.

3/11

STG3680

Table 6: AC Electrical Characteristics (CL=35pF,RL=50Ω, tr=tf≤ 5ns)

Test Condition Value

= 25°C

Symbol Parameter

t

PLH,tPHL

t

t

Propagation Delay 1.65-1.95

TURN-ON time 1.65-1.95 VS=0.8V

ON

TURN-OFF time 1.65-1.95 VS=0.8V

OFF

Break Before Make
Time Delay

t

D

Q Charge injection 1.65-1.95

T

V

CC

(V)

2.3-2.7 0.40

3.0-3.6 0.30

=OPEN

V

I

A

Min. Typ. Max. Min. Max. Min. Max.

3.6-4.3 0.30

2.3-2.7 V

3.0-3.6 V

3.6-4.3 V

2.3-2.7 V

3.0-3.6 V

3.6-4.3 V

1.65-1.95

2.3-2.7 2 15

3.0-3.6 2 15

3.6-4.3 2 15

2.3-2.7 200

3.0-3.6 200

3.6-4.3 200

S
S
S

S
S
S

C

=35pF

L

R

L

V

S

C

= 100pF

L

R

=1MΩ

L

V

GEN

R

GEN

=1.5V
=1.5V
=1.5V

=1.5V
=1.5V
=1.5V

=50Ω

=1.5V

=0V
=0Ω

0.45

70
30 50 60
30 50 60
30 50 60
45
25 30 40
25 30 40
25 30 40

-40 to 85°C -55 to 125°C

Unit

ns

ns

ns

ns

pC

Table 7: An alog Switch Characteristics (C

= 5pF, RL=50Ω,TA= 25°C)

L

Test Condition Value

Symbol Parameter

OIRR Off Isolation (1) 1.65-4.3 V

V

(V)

CC

=1V

S

Min. Typ. Max. Min. Max. Min. Max.

RMS

f= 100KHz

Xtalk Crosstalk 1.65-4.3 V

=1V

S

RMS

f= 100KHz

THD Total Harmonic

Distortion

2.3-4.3 R

L

V

IN

=600Ω

=2V

PP

f= 20Hz to 20kHz

BW -3dB Bandwidth 1.65-4.3 R

IN

Sn

C

D

Control Pin Input
Capacitance

Sn Port Capaci­tance

D Port Capaci­tance when

3.3

3.3

C

C

=50Ω

L

f= 1MHz 37

f= 1MHz 84

Switch is Enabled

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

= 25°C

T

A

-40 to 85°C -55 to 125°C

-64 dB

-54 dB

0.03 %

50 MHz

5

Unit

pF

4/11