STG5678
Low voltage dual SPDT switch with negative rail capability
Features
■
■
■
■
■
■
■
Distortion-free negative signal throughput down to V
CC
- 5.5 V
Wide operating voltage range:
V
CC
(opr) = 1.65 to 4.5 V single supply
Ultra low power dissipation:
I
CC
= 0.2
µ A (max.) at T
A
= 85 °C
Low ON resistance:
R
ON
= 0.5
Ω (max. T
A
= 25 °C) at V
CC
= 3.6 V
4.3 V tolerant and 1.8 V compatible threshold on digital control input at V
CC
= 1.65 V to 4.5 V
Latch-up performance exceeds 300 mA
(JESD 17)
ESD performance:
– 2000-V human-body model
(IEC61340-3-1:2002 level 2)
– 200-V machine model
(IEC61340-3-2 level M2)
– 1000-V charge device model
(JESD22-C101-A level III)
Flip-chip 12
Description
The STG5678 is a high-speed CMOS low voltage dual analog SPDT (single pole dual throw) switch or 2:1 multiplexer/de-multiplexer switch fabricated in silicon gate CMOS technology. It is designed to operate from 1.65 to 4.5 V.
The device is capable of handling signals with negative voltages from V
CC
- 5.5 V to V
CC
without any distortion.
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.
Table 1.
Device summary
Order code
STG5678BJR
STG5678CJR
Package
Flip-chip 12
Flip-chip 12 (with back side coating)
Packaging
Tape and reel
Tape and reel
June 2010 Doc ID 14580 Rev 3 1/23 www.st.com
23
2
3
7
8
4
5
6
Contents
Contents
1
STG5678
Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1
Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
STG5678 device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1
Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Application hint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.1
Input signal dynamic range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2/23 Doc ID 14580 Rev 3
STG5678 Pin settings
Figure 1.
Pin connection (bump side view)
S ee note 1
1
A B C D
A1 B1 C1 D1
2 A2 B2 C2 D2
3
A 3 B 3 C 3 D 3
A B C D
1 1 S EL 1 S 1 D1 1 S 2
2 NC GND GND VCC
3
2 S EL 2 S 1 D2 2 S 2
1.
Note 1: bump A1 is distinguished by a circular dot on the top-side. There is no circular dot on the bumpside.
Table 2.
Pin assignment
Pin number
B1
B2
B3
C1
A1
A2
A3
C2
C3
D1
D2
D3
Symbol
1SEL
NC
2SEL
1S1
GND
2S1
D1
GND
D2
1S2
V
CC
2S2
Name and function
Selection control for switch 1
No connection
Selection control for switch 2
Independent channel for switch 1
Ground (0 V)
Independent channel for switch 2
Common channel for switch 1
Ground (0 V)
Common channel for switch 2
Independent channel for switch 1
Positive supply voltage
Independent channel for switch 2
Doc ID 14580 Rev 3 3/23
STG5678 device summary
2 STG5678 device summary
Figure 2.
Functional diagram
STG5678
Figure 3.
Input equivalent circuit
D
SEL
4/23
Table 3.
Truth table
SEL
H
L
1.
High impedance
Switch S1
ON
OFF
(1)
Doc ID 14580 Rev 3
Switch S2
OFF
(1)
ON
S2
S1
STG5678 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.
Table 4.
Symbol
V
CC
Absolute maximum ratings
Supply voltage
Parameter
DC input voltage V
I
V
IC
DC control input voltage
V
O
DC output voltage
I
IKC
I
IK
I
OK
I
O
I
OP
I
CC
or
I
GND
P
D
T stg
T
L
DC input diode current on control pin (V
SEL
DC input diode current (V
IN
DC output diode current
DC output current
< 0 V)
< 0 V)
DC output current peak (pulse at 1ms, 10% duty cycle)
DC V
CC
or ground current
Power dissipation at T
Storage temperature
A
1.
Derate above 70 ºC by 18.5 mW/C
= 70°C
Lead temperature (10 sec)
(1)
Value
-0.5 to 5.5
- (V
CC
- 6.0) to
V
CC
+ 0.5
-0.5 to 5.5
- (V
CC
- 6.0 V) to
V
CC
+ 0.5
-50
±50
±20
±150
±400
±100
1120
-65 to 150
300
Unit
V
V
V
V mA mA mA mA mA mA mW
°C
°C
Doc ID 14580 Rev 3 5/23
Maximum rating
3.1 Recommended operating conditions
Table 5.
Symbol
V
CC
V
I
V
IC
V
O
T op
Recommended operating conditions
Supply voltage
Input voltage
Control input voltage
Output voltage
Operating temperature
Parameter dt/dv
Input rise and fall time control input
V
CC
= 1.65 to 2.7 V
V
CC
= 3.0 to 4.5 V
STG5678
Value
1.65 to 4.5
V
CC
-5.5 to V
CC
0 to 4.5
V
CC
-5.5 to V
CC
-40 to 85
0 to 20
0 to 10
Unit
V
V
V
V
°C ns/V
6/23 Doc ID 14580 Rev 3
STG5678 Electrical characteristics
Table 6.
DC specifications
Test conditions
Symbol Parameter
V
IH
V
IL
R
ON
High level input voltage
Low level input voltage
Switch ON resistance
Δ R
ON
ON resistance match between channels
(1)
R
FLAT
ON resistance flatness
(2)
V
CC
(V)
3.6
1.8
2.7
3.0
3.6
2.7
3.0
3.6
1.8
2.7
3.0
1.65
−
1.95
2.25
−
2.7
3.0
−
4.3
4.5
1.65
−
1.95
2.25
−
2.7
3.0
−
4.3
4.5
1.8
V
S
= V
CC to V
CC
;
I
S
= 100 mA
V
S
at R
ON
max
I
S
= 100 mA
V
S
= V
CC to V
CC
;
−
−
5.5 V
5.5 V
I
S
= 100 mA
I
OFF
I
ON
Sn OFF state leakage current
Sn ON state leakage current
3.6
3.6
V
S
= -1.2 to
3.6 V
V
D
= 3.6 to
-1.2 V
V
S
= -1.2 to
3.6 V
V
D
= open
Value
Min
T
A
= 25 °C
Typ Max
–
–
–
–
–
–
1.1
–
–
–
–
–
0.9
0.9
1.0
–
–
–
–
–
0.77
0.64
0.51
50
20
15
–
–
–
–
–
3.80
–
–
–
15
3.5
0.50
0.40
0.25
0.90
0.80
0.65
–
–
–
–
0.6
0.6
0.7
0.7
4.60
–
–
–
–
–
–
–
–
–
–
-0.55
-0.55
–
–
-40 to 85 °C
Min
–
–
–
–
–
–
1.1
–
–
–
–
–
0.9
0.9
1.0
–
–
–
–
–
Max
1.2
1.0
1.0
500
500
500
–
0.6
0.6
0.7
0.7
7.0
–
–
–
500
6.6
0.8
0.6
0.5
Unit
V
V
Ω m
Ω
Ω
-2
-2
1
1
µA
µA
Doc ID 14580 Rev 3 7/23
Electrical characteristics STG5678
Table 6.
DC specifications (continued)
Test conditions Value
Symbol Parameter T
A
= 25 °C -40 to 85 °C Unit
V
CC
(V)
Min Typ Max Min Max
I
D
I
IH
,I
IL
D ON state leakage current
SEL leakage current
3.6
3.6
V
S
= open
V
D
= -1.2 V to
3.6 V
V
SEL
= 3.6 V or
GND
–
-0.1
0.55
–
0.1
-2
-1
1
1
µA
µA
I
CCLV
Quiescent supply current low voltage driving
3.6
V
1SEL
, V
2SEL
1.80 V
=
– 7 – – 10 µA
I
CC
Quiescent supply current
(3)
2.5
3.6
1.65
−
4.5
V
1SEL
= V
2SEL
=
V
CC
–
–
5.6
8
–
–
–
–
10
16
V
1SEL
= V
2SEL
=
GND
– 0.05
– – 0.1
1.
Note 1:
Δ
R
ON
= R
ON(max)
- R
ON (min)
2.
Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal ranges.
3.
When V
1SEL
and V
2SEL
is both low, the I
CC
consumption will reduce to less than 0.1 µA (max)
µA
8/23 Doc ID 14580 Rev 3
STG5678 Electrical characteristics
Table 7.
Symbol Parameter
Vcc
(V) t
PLH
, t
PHL
Propagation delay t
ON t
OFF t
D
Q
Turn ON time
Turn OFF time
Break- before-make time delay
Charge injection
1.65
−
1.95
2.3
−
2.7
3.0
−
3.3
3.6
1.65
−
1.95
2.3
−
2.7
3.0
−
3.3
3.6
1.65
−
1.95
2.3
−
2.7
3.0
−
3.3
3.6
1.65
−
1.95
2.3
−
2.7
3.0
−
3.3
3.6
1.65
−
1.95
2.3
−
2.7
3.0
−
3.3
3.6
AC electrical characteristics (C
L
= 35 pF, R
L
= 50
Ω
, t r
= t f
≤
5 ns)
Test conditions Value
V
S
= 0.8 V
V
S
= 1.5 V
V
S
= 0.8
V
S
= 1.5 V
C
L
= 35 pF
R
L
= 50 Ω
V
S
= V
CC
/2
C
L
= 100 pF
V
GEN
= 0 V
Min
T
A
= 25°C
Typ Max
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
77
120
66
40
30
55
0.45
0.40
0.30
0.25
220
140
110
105
120
77
77
76
94
126
92
–
–
–
–
–
–
–
–
–
265
175
135
130
150
92
92
–
–
–
-40 to 85°C
Min
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Max
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Unit ns ns ns ns pC
Doc ID 14580 Rev 3 9/23
Electrical characteristics STG5678
Table 8.
Symbol
Analog switch characteristics (C
L
= 5 pF, R
L
= 50
Ω
,)
Test conditions
Parameter
V
CC
(V)
Value
T
A
= 25 °C -40 to 85 °C
Min Typ Max Min Max
O
IRR
X talk
T
HD
BW
OFF isolation
(1)
Crosstalk
(2)
Total harmonic distortion
-3dB bandwidth
V
S
= 1 V
RMS, f = 100 kHz
2.7
−
3.6
V
S
= 1 V
RMS, f = 1 MHz
V
S
= 1 V
RMS, f = 5 MHz
V
S
= 1 V
RMS, f = 100 kHz
2.7
−
3.6
V
S
= 1 V
RMS, f = 1 MHz
2.7
−
3.6
2.7
−
3.6
V
S
= 1 V
RMS, f = 5 MHz
R
L
= 32 Ω
V
IN
= 0.5 V
PP
DC bias = 0 f = 20 Hz to 20 kHz
R
L
= 50 Ω
Signal = 0 dBm
C
SEL
Control pin input capacitance
C
Sn(OFF)
OFF Sn port capacitance
3.3
3.3
f = 1 MHz f = 1 MHz
C
D
D port capacitance when switch is enabled
3.3
f = 1 MHz
1.
Off isolation = 20Log10 (V
D
/V
S
), V
D
= output. V
S
= input to off switch.
2.
Crosstalk values are measured between two switches.
–
–
–
–
–
–
–
–
–
–
–
-86
-70
-54
-96
-87
-74
0.01
30
12
120
290
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Unit dB dB
%
MHz pF pF pF
10/23 Doc ID 14580 Rev 3
STG5678 Test circuit
Figure 4.
ON resistance
Figure 5.
OFF leakage
V
SS
I
S (OFF)
A
V
CC
S 2
IN
S1
VS
GND
S2
IN
GND
V
CC
GND
I
DS
V
V
CC
D
CS14071
D
I
D(OFF)
A
V
D
C S 140 8 1
Doc ID 14580 Rev 3 11/23
Test circuit
Figure 6.
OFF isolation
S 1
V
S
S 2
GND
IN
V
CC
GND
Figure 7.
Bandwidth
V
CC
S1
S2
V
CC
IN
GND
50
Ω
V
OUT
CS00381
D
V
OUT
STG5678
C S 00 3 71
12/23 Doc ID 14580 Rev 3
STG5678
Figure 8.
Channel-to-channel crosstalk
Test circuit
CS14091
Figure 9.
Test circuit
2.
C
L
= 5/35 pF or equivalent (includes jig and probe capacitance)
3.
R
L
4.
R
T
= 50 Ω or equivalent
= Z
OUT
of pulse generator (typically 50
Ω
)
Doc ID 14580 Rev 3 13/23
Test circuit
Figure 10. Break-before-make time delay
STG5678
Figure 11. Switching time and charge injection (V
GEN
C
L
= 100 pF)
= 0 V, R
GEN
= 0 Ω , R
L
= 1 M Ω ,
Figure 12. Turn on, turn off delay time
VCC
S1 D
R
L
C
L
VOUT
S2
IN
V
IN GND
CS08721
14/23 Doc ID 14580 Rev 3
STG5678 Application hint
6.1 Input signal dynamic range
The STG5678 negative analog switch allows input signals that fall below 0 V to pass through the switch without signal distortion. The input signal dynamic range VI consists of a positive-region and a negative-region.
The positive-region is limited by the level of V
CC
. The negative-region is limited by the difference between V
CC
and 5.5 V. The effect of this is that, the higher the V
CC
, the smaller the operating range in the negative region.
For example, if V
CC
= 3.6 V, the input signal dynamic range is from -1.9 V to 3.6 V.
Figure 13.
Application diagram
V
CC
V
CC
Negative SW
V
I
0V
V
CC
-5.5
Negative region
Doc ID 14580 Rev 3 15/23
Package mechanical data
7 Package mechanical data
STG5678
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK
® specifications, grade definitions and product status are available at: www.st.com
.
ECOPACK
®
is an ST trademark.
Figure 14.
Package outline for Flip-chip 12
3
2
1
D C B A
Bottom view
16/23 Doc ID 14580 Rev 3
STG5678
Table 9.
Mechanical data for Flip-chip 12
Symbol
D
D1
E
E1
A
A1
A2 b e f ccc
Min
0.55
0.17
0.38
0.215
1.568
–
1.168
–
0.36
0.189
–
Figure 15.
Footprint recommendation
Millimeters
Typ
0.605
0.205
0.4
0.255
1.598
1.2
1.198
0.8
0.4
0.199
0.05
Package mechanical data
Max
0.66
0.24
0.42
0.295
1.628
–
1.228
–
0.44
0.209
–
Doc ID 14580 Rev 3 17/23
Package mechanical data
Figure 16.
Package outline for Flip-chip 12 with back side coating
STG5678
C
B
A
4
$
18/23
Table 10.
Mechanical data for Flip-chip 12 with back side coating
Millimeters
Symbol
Min Typ
D
D1
E
E1
A
A1
A2 b e f ccc
0.595
0.165
0.38
0.215
1.568
–
1.168
–
0.36
0.189
–
0.65
0.20
0.4
0.255
1.598
1.2
1.198
0.8
0.4
0.199
0.05
Max
0.705
0.235
0.42
0.295
1.628
–
1.228
–
0.44
0.209
–
N5_ME
Doc ID 14580 Rev 3
STG5678
Figure 17.
Footprint recommendation
Package mechanical data
A
B
C
1 2 3 4
N5_FR
Figure 18.
Tape information
Doc ID 14580 Rev 3 19/23
Package mechanical data
Figure 19.
Tape orientation
STG5678
U s er direction of feed
AM00745V1
Table 11.
Reel measurement
Tape width
(mm)
A
Max
N
Min
8 180 54 8.4
W1
+1.5/-0
W2
Max
14.4
Min
7.9
W3
Max
10.9
20/23 Doc ID 14580 Rev 3
STG5678
Figure 20.
Reel information
Package mechanical data
Doc ID 14580 Rev 3 21/23
Revision history STG5678
Table 12.
Document revision history
Date Revision
01-Apr-2008 1 Initial release.
10-Sep-2008
04-Jun-2010
2
3
Changes
Document status promoted from preliminary data to datasheet.
Modified: Figure 19 on page 20 .
Updated: Table 9 on page 17 .
Added: Flip-chip 12 with back side coating. Document reformatted.
22/23 Doc ID 14580 Rev 3
STG5678
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Doc ID 14580 Rev 3 23/23
