MAX394 [MAXIM]
Low-Voltage, Quad, SPDT, CMOS Analog Switch; 低电压，四路， SPDT ， CMOS模拟开关
| 型号： | MAX394 |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Low-Voltage, Quad, SPDT, CMOS Analog Switch |
| 文件： | 总12页 (文件大小：136K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-0391; Rev 0; 5/95
Lo w -Vo lt a g e , Qu a d , S P DT,
CMOS An a lo g S w it c h
MAX394
_______________Ge n e ra l De s c rip t io n
____________________________Fe a t u re s
♦ Low On-Resistance, < 17Ω Typical (35Ω max)
The MAX394 is a precision, low-voltage, quad, single-
pole/double-throw (SPDT) analog switch. The four inde-
pendent switches operate with bipolar supplies ranging
from ±2.7V to ±8V, or with a single supply of +2.7V to
+15V. The MAX394 offers low on-resistance (less than
35Ω), guaranteed to match within 2Ω between channels
and to remain flat over the analog signal range (∆4Ω
max). It also offers break-before-make switching (10ns
typical), with turn-off times less than 75ns and turn-on
times less than 130ns. The MAX394 is ideal for portable
operation since quiescent current runs less than 1µA with
all inputs high or low.
♦ Guaranteed Matched On-Resistance Between
Channels, < 2Ω
♦ Guaranteed Flat On-Resistance over Analog
Signal Range, ∆4Ω Max
♦ Guaranteed Charge Injection < 10pC
♦ Guaranteed Off-Channel Leakage < 2.5nA at +85°C
♦ ESD Guaranteed > 2000V per Method 3015.7
♦ Single-Supply Operation (+2.7V to +15V)
Bipolar-Supply Operation (±2.7V to ±8V)
♦ TTL/CMOS-Logic Compatibility
♦ Rail-to-Rail Analog Signal Handling Capability
♦ Pin Compatible with MAX333, MAX333A
This monolithic, quad switch is fabricated with Maxim’s
low voltage silicon-gate process. Design improvements
guarantee extremely low charge injection (10pC), low
power consumption (10µW), and electrostatic discharge
(ESD) greater than 2000V.
______________Ord e rin g In fo rm a t io n
PART
TEMP. RANGE
0°C to +70°C
PIN-PACKAGE
20 Plastic DIP
20 Wide SO
Dice*
MAX394CPP
MAX394CWP
MAX394C/D
MAX394EPP
MAX394EWP
MAX394MJP
Logic inputs are TTL and CMOS compatible and guaran-
teed over a +0.8V to +2.4V range for supply voltages up
to +8V. When supplies exceed +8V, the inputs are typi-
cally +0.8V to +4V. Logic inputs and switched analog sig-
nals can range anywhere between the supply voltages
without damage.
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
20 Plastic DIP
20 Wide SO
20 CERDIP**
________________________Ap p lic a t io n s
*
Contact factory for dice specifications.
Test Equipment
Portable Instruments
Audio Signal Routing
Set-Top Boxes
** Contact factory for availability.
Communications Systems
PBX, PABX
__________Typ ic a l Op e ra t in g Circ u it
Heads-Up Displays
INPUTS
OUTPUTS
V - V
V
1
1
2
__________________P in Co n fig u ra t io n
TOP VIEW
V
2
IN1
NO1
IN4
1
2
20
19
18
17
16
15
14
13
12
11
NO4
COM4
NC4
V+
OSC
IN
COM1
NC1
3
4
V-
GND
NC2
5
MAX394
N.C.
NC3
COM3
NO3
IN3
6
7
V - V
V
3
3
4
COM2
NO2
8
9
V
4
IN2
10
DIP/SO
FLYING CAPACITOR
LEVEL TRANSLATOR
(2-CHANNEL)
SWITCHES ARE SHOWN WITH LOGIC "0" INPUT
N.C. = NOT INTERNALLY CONNECTED
________________________________________________________________ Maxim Integrated Products
1
Ca ll t o ll fre e 1 -8 0 0 -9 9 8 -8 8 0 0 fo r fre e s a m p le s o r lit e ra t u re .
Lo w -Vo lt a g e , Qu a d , S P DT,
CMOS An a lo g S w it c h
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to GND
Continuous Power Dissipation (T = +70°C)
A
V+ .......................................................................-0.3V to +17V
V- ........................................................................+0.3V to -17V
V+ to V-...............................................................-0.3V to +17V
COM_, NO_, NC_, IN_ (Note 1)..................(V- - 2V) to (V+ + 2V)
or 30mA, whichever occurs first
Continuous Current, Any Pin...............................................30mA
Peak Current, Any Pin
(pulsed at 1ms, 10% duty cycle max) ..........................100mA
Plastic DIP (derate 10.53mW/°C above+70°C) ...........842mW
Narrow SO (derate 8.70mW/°C above +70°C) ............696mW
CERDIP (derate 10.00mW/°C above +70°C)...............800mW
Operating Temperature Ranges
MAX394C_ P .......................................................0°C to +70°C
MAX394E_ P ....................................................-40°C to +85°C
MAX394MJP ..................................................-55°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
MAX394
Note 1: Signals on NC, NO, COM, or IN exceeding V+ or V- are clamped by internal diodes. Limit forward diode current to
maximum current rating.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS—Dual Supplies
(V+ = 5V ±10%, V- = -5V ±10%, GND = 0V, V
= 2.4V, V = 0.8V, T = T
to T , unless otherwise noted.)
MAX
INH
INL
A
MIN
TEMP.
RANGE
MIN
TYP
(Note 2)
MAX
PARAMETER
SYMBOL
CONDITIONS
UNITS
SWITCH
V
,
COM
Analog Signal Range
On-Resistance
V
V
,
(Note 3)
V+ = 4.5V, V- = -4.5V,
V-
V+
V
NO
NC
C, E
M
20
20
35
30
T
=
A
V
V
= ±3.5V,
NC or NO
+25°C
R
I
= 10mA,
Ω
ON
COM
T
= T
MAX
A
MIN
V
V
INL
= 2.4V,
= 0.8V
INH
C, E, M
45
to T
T
=
A
V
V
= ±3V,
C, E, M
C, E, M
C, E, M
C, E, M
0.5
2
4
4
6
NC or NO
On-Resistance Match Between
Channels (Note 4)
+25°C
= T
∆R
I
= 10mA,
Ω
Ω
ON
COM
T
A
MIN
V+ = 5V, V- = -5V
to T
MAX
=
T
A
V
V
= 3V, 0V,
= 10mA,
NC or NO
On-Resistance Flatness
(Note 4)
+25°C
= T
R
-3V; I
COM
V+ = 5V; V- = -5V
FLAT(ON)
T
A
MIN
to T
MAX
C, E
M
-0.2
-0.1
-2.5
-20
-0.01
-0.01
0.2
0.1
2.5
20
T
=
A
V
= ±4.5V,
I
COM
NC(OFF)
or
NO(OFF)
+25°C
NC or NO Off Leakage Current
(Note 5)
V
or V = ±4.5V,
nA
nA
NC
NO
C, E
M
T
= T
MAX
A
MIN
I
V+ = 5.5V,V- = -5.5V
to T
C, E
M
-0.4
-0.2
-5.0
-20
-0.04
-0.04
0.4
0.2
5.0
20
T
=
A
V
= ±4.5V,
or V = ±4.5V,
NO
COM
+25°C
COM Leakage Current
(Note 5)
I
COM(ON)
V
NC
C, E
M
T
= T
MAX
A
MIN
V+ = 5.5V, V- = -5.5V
to T
2
_______________________________________________________________________________________
Lo w -Vo lt a g e , Qu a d , S P DT,
CMOS An a lo g S w it c h
MAX394
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = 5V ±10%, V- = -5V ±10%, GND = 0V, V
= 2.4V, V = 0.8V, T = T
to T , unless otherwise noted.)
MAX
INH
INL
A
MIN
MIN
TYP
(Note 2)
MAX
PARAMETER
SYMBOL
CONDITIONS
UNITS
DIGITAL LOGIC INPUT
Input Current with Input
Voltage High
I
V
= 2.4V, all others = 0.8V
= 0.8V, all others = 2.4V
-1.0
0.005
0.005
1.0
1.0
µA
µA
IN
INH
Input Current with Input
Voltage Low
I
V
IN
-1.0
2.4
INL
Logic High Input Voltage
Logic Low Input Voltage
DYNAMIC
V
T
= T
= T
to T
MAX
V
V
A
MIN
A_H
V
T
A
to T
0.8
MIN
MAX
A_L
T
= +25°C
82
57
130
175
75
A
Turn-On Time
Turn-Off Time
t
V
= 3V, Figure 2
= 3V, Figure 2
ns
ns
ON
COM
T
A
= T
to T
MIN
MAX
MAX
T
A
= +25°C
t
V
COM
OFF
T
A
= T
to T
100
MIN
Break-Before-Make
Time Delay (Note 3)
t
Figure 5
T
= +25°C
= +25°C
2
10
5
ns
D
A
Charge Injection
(Note 3)
C
R
= 1.0nF, V
= 0V,
L
GEN
V
CTE
T
A
10
pC
= 0Ω, Figure 6
GEN
R = 50Ω, C = 5pF,
f = 1MHz, Figure 3
L
L
Off Isolation (Note 6)
Crosstalk (Note 7)
V
T
= +25°C
= +25°C
= +25°C
= +25°C
= +25°C
66
88
12
12
39
dBm
dBm
pF
ISO
A
R = 50Ω, C = 5pF,
L
L
V
T
A
CT
f = 1MHz, Figure 8
Off Capacitance
C
f = 1MHz, Figure 3
T
A
OFF
COM Off Capacitance
Channel On Capacitance
C
C
f = 1MHz, Figure 3
f = 1MHz, Figure 4
T
A
pF
COM(OFF)
COM(ON)
T
A
pF
SUPPLY
Power-Supply Range
±2.4
-1.0
±8
V
All channels on or off,
V+ = 5.5V, V- = -5.5V, V = 0V or V+
IN
Positive Supply Current
I+
I-
0.06
1.0
µA
Negative Supply
Current
All channels on or off,
V+ = 5.5V, V- = -5.5V, V = 0V or V+
-1.0
-0.01
1.0
µA
IN
_______________________________________________________________________________________
3
Lo w -Vo lt a g e , Qu a d , S P DT,
CMOS An a lo g S w it c h
ELECTRICAL CHARACTERISTICS—Single +5V Supply
(V+ = 5V ±10%, V- = 0V, GND = 0V, V
= 2.4V, V = 0.8V, T = T
to T , unless otherwise noted.)
MAX
INH
INL
A
MIN
TEMP.
RANGE
MIN
TYP
(Note 2)
MAX
PARAMETER
SWITCH
SYMBOL
CONDITIONS
UNITS
V
COM,
MAX394
Analog Signal Range
V
NO,
(Note 3)
0V
V+
V
V
NC
C, E
M
25
65
60
V+ = 5.0V, V- = 0V,
= 3.5V,
T = +25°C
A
V
V
NC or NO
On-Resistance
R
ON
I
= 1.0mA,
Ω
COM
V
V
INL
= 2.4V,
= 0.8V
T = T
A MIN
to T
MAX
INH
C, E, M
75
T = +25°C C, E, M
0.5
2
4
6
8
A
V
V
= 3V,
NC or NO
On-Resistance Match
Between Channels (Note 4)
∆R
I
= 1.0mA,
Ω
Ω
ON
COM
T
to T
= T
MAX
A
MIN
V+ = 5V
C, E, M
T = +25°C C, E, M
A
V
V
COM
= 3V, 2V,
= 1.0mA;
NC or NO
On-Resistance Flatness
(Note 4)
R
1V; I
V+ = 5V; V- = 0V
FLAT(ON)
T
to T
= T
MAX
A
MIN
C, E, M
C, E
M
-0.2
-0.1
-2.5
-20
-0.01
-0.01
0.2
0.1
2.5
20
T = +25°C
A
I
V
= 0V,
NC(OFF)
or
NO(OFF)
COM
NC or NO Off Leakage
Current (Note 8)
V
or V = 4.5V,
nA
nA
NC
NO
C, E
M
T
A
= T
MIN
I
V+ = 5.5V, V- = 0V
to T
MAX
C, E
M
-0.4
-0.2
-5.0
-20
-0.04
-0.04
0.4
0.2
5.0
20
T = +25°C
A
V
= 4.5V,
or V = 4.5V,
COM
COM Leakage Current
(Note 8)
I
V
COM(ON)
NC NO
C, E
M
T
A
= T
MIN
V+ = 5.5V, V- = 0V
to T
MAX
DIGITAL LOGIC INPUT
Input Current with Input
Voltage High
I
V
= 2.4V, all others = 0.8V
-1.0
-1.0
0.005
0.005
1.0
1.0
µA
µA
INH
IN
Input Current with Input
Voltage Low
I
V
IN
= 0.8V, all others = 2.4V
INL
4
_______________________________________________________________________________________
Lo w -Vo lt a g e , Qu a d , S P DT,
CMOS An a lo g S w it c h
MAX394
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
(V+ = +5V ±10%, V- = 0V, GND = 0V, V
= 2.4V, V = 0.8V, T = T
to T , unless otherwise noted.)
MAX
INH
INL
A
MIN
MIN
TYP
(Note 2)
MAX
PARAMETER
DYNAMIC
SYMBOL
CONDITIONS
UNITS
T
= +25°C
160
60
250
300
125
175
A
Turn-On Time (Note 3)
Turn-Off Time (Note 3)
t
V
= 3V, Figure 2
= 3V, Figure 2
COM
ns
ON
COM
T
A
= T
to T
MIN
MAX
MAX
T
A
= +25°C
t
V
ns
ns
OFF
T
A
= T
to T
MIN
Break-Before-Make Time
Delay (Note 3)
t
T
A
= +25°C
= +25°C
5
20
3
D
Charge Injection
(Note 3)
C
R
= 1.0nF, V
= 0V,
L
GEN
V
CTE
T
A
5
pC
= 0Ω
GEN
SUPPLY
Power-Supply Range
V+
I+
2.4
16
V
All channels on or off, V = 0V or V+,
IN
V+ = 5.5V, V- = 0V
Positive Supply Current
Negative Supply Current
-1.0
0.01
1.0
µA
All channels on or off, V = 0V or V+,
IN
V+ = 5.5V, V- = 0V
I-
-1.0
-0.01
1.0
µA
ELECTRICAL CHARACTERISTICS—Single +3.3V Supply
(V+ = 3.0V to 3.6V, GND = 0V, V
= 2.4V, V = 0.8V, T = T
to T , unless otherwise noted.)
MAX
INH
INL
A
MIN
TEMP.
RANGE
MIN
TYP
(Note 2)
MAX
PARAMETER
SWITCH
SYMBOL
CONDITIONS
UNITS
V
COM,
Analog Signal Range
V
NO,
(Note 3)
0
V+
V
V
NC
C, E
M
75
185
175
V+ = 3V, V- = 0V,
= 1.5V,
T = +25°C
A
V
V
NC or NO
On-Resistance
R
ON
I
= 1.0mA,
Ω
COM
V
V
INL
= 2.4V,
= 0.8V
T = T
A MIN
to T
MAX
INH
C, E, M
250
C, E
M
-0.2
-0.1
-2.5
-5.0
-0.4
-0.2
-5.0
-20.0
-0.01
-0.01
0.2
0.1
2.5
5.0
0.4
0.2
5.0
20.0
T = +25°C
A
I
V
= 0V,
NC(OFF)
COM
NC or NO Off Leakage
Current (Note 8)
V
or V = 3V,
nA
nA
or
NC
NO
C, E
M
T
A
= T
MIN
I
V+ = 3.6V, V- = 0V
NO(OFF)
to T
MAX
C, E
M
-0.04
-0.04
T
A
= +25°C
V
= 3V,
or V = 3V,
COM
COM Leakage Current
(Note 8)
I
V
COM(ON)
NC NO
C, E
M
T
A
= T
MIN
V+ = 3.6V, V- = 0V
to T
MAX
_______________________________________________________________________________________
5
Lo w -Vo lt a g e , Qu a d , S P DT,
CMOS An a lo g S w it c h
ELECTRICAL CHARACTERISTICS—Single +3.3V Supply (continued)
(V+ = 3.0V to 3.6V, GND = 0V, V
= 2.4V, V = 0.8V, T = T
to T , unless otherwise noted.)
MAX
INH
INL
A
MIN
MIN
TYP
(Note 2)
MAX
PARAMETER
SYMBOL
CONDITIONS
UNITS
DIGITAL LOGIC INPUT
Input Current with Input
Voltage High
I
V
= 2.4V, all others = 0.8V
= 0.8V, all others = 2.4V
-1.0
-1.0
0.005
0.005
1.0
1.0
µA
µA
INH
IN
MAX394
Input Current with Input
Voltage Low
I
V
IN
INL
DYNAMIC
Turn-On Time (Note 3)
t
V
= 1.5V, Figure 2
= 1.5V, Figure 2
T
A
= +25°C
= +25°C
= +25°C
= +25°C
400
150
ns
ns
ON
COM
Turn-Off Time (Note 3)
t
V
COM
T
A
OFF
Break-Before-Make Delay
(Note 3)
t
D
Figure 5
T
A
5
20
1
ns
C
R
= 1.0nF, V
= 0V,
L
GEN
Charge Injection (Note 3)
V
CTE
T
A
5
pC
= 0Ω, Figure 6
GEN
SUPPLY
Power-Supply Range
V+
I+
2.7
16
V
All channels on or off, V = 0V or V+,
IN
V+ = 3.6V, V- = 0V
Positive Supply Current
Negative Supply Current
-1.0
0.01
1.0
µA
All channels on or off, V = 0V or V+,
IN
V+ = 3.6V, V- = 0V
I-
-1.0
-0.01
1.0
µA
Note 2: The algebraic convention, where the most negative value is a minimum and the most positive value a maximum, is used in
this data sheet.
Note 3: Guaranteed by design.
Note 4: ∆R
= ∆R (max) - ∆R (min). On-resistance match between channels and flatness are guaranteed only with
ON ON
ON
specified voltages. Flatness is defined as the difference between the maximum and minimum value of on-resistance as
measured over the specified analog signal range.
Note 5: Leakage parameters are 100% tested at maximum rated hot temperature and guaranteed by correlation at room temperature.
Note 6: See Figure 6. Off isolation = 20log
V
/V or V , V
= output, V or
= input to off switch.
NO
10 COM NC
NO COM
NC
Note 7: Between any two switches. See Figure 3.
Note 8: Leakage testing at single supply is guaranteed by testing with dual supplies.
6
_______________________________________________________________________________________
Lo w -Vo lt a g e , Qu a d , S P DT,
CMOS An a lo g S w it c h
MAX394
__________________________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s
(T = +25°C, unless otherwise noted.)
A
ON-RESISTANCE vs. V
ON-RESISTANCE vs. V
ON-RESISTANCE vs. V
COM
COM
COM
(DUAL SUPPLIES)
(SINGLE SUPPLY)
OVER TEMPERATURE (DUAL SUPPLIES)
50
40
30
20
35
30
25
20
15
10
100
90
V+ = +5V
V- = -5V
80
V+ = 3V, V- = -3V
70
V+ = 3V, V- = 0V
60
50
40
30
20
+125°C
V+ = 5V, V- = -5V
V+ = 8V, V- = -8V
+85°C
+25°C
10
0
V+ = 5V, V- = 0V
5
0
10
-8 -6 -4 -2
0
2
4
6
8
0
1
2
3
4
5
6
-5 -4 -3 -2 -1
0
1
2
3
4
5
V
COM
(V)
V
COM
(V)
V
COM
(V)
ON LEAKAGE CURRENT
vs. TEMPERATURE
ON-RESISTANCE vs. V
OVER TEMPERATURE (SINGLE SUPPLY)
OFF LEAKAGE CURRENT
vs. TEMPERATURE
COM
1000
50
40
30
20
1000
V+ = 5V
V+ = 5.5V
V- = -5.5V
= ±4.5V
V+ = 5.5V
V- = -5.5V
+125°C
V- = 0V
100
10
100
10
V
COM
V
NC
or V = ±4.5V
NO
+85°C
+25°C
I
COM(ON)
I
COM(OFF)
1
0.1
1
0.1
0.01
I
or I
NO(ON)
0.01
NC (OFF)
I
or I
NO(OFF)
NC(OFF)
10
0
0.001
0.0001
0.001
0.0001
-75 -50 -25
0
25 50 75 100 125
0
1
2
3
4
5
6
-75 -50 -25
0
25 50 75 100 125
TEMPERATURE (°C)
V
COM
(V)
TEMPERATURE (°C)
_______________________________________________________________________________________
7
Lo w -Vo lt a g e , Qu a d , S P DT,
CMOS An a lo g S w it c h
____________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s (c o n t in u e d )
(T = +25°C, unless otherwise noted).
A
CHARGE INJECTION
vs. V
SUPPLY CURRENT vs.
TEMPERATURE
COM
50
40
100
V+ = 5.5V
V- = -5.5V
MAX394
10
1
30
20
10
0
V+ = 3V, V- = 0V
I+ or I-
0.1
0.01
-10
-20
-30
V+ = 5V, V- = 0V
0.001
V+ = 5V, V- = -5V
0.0001
0.00001
-40
-50
-5 -4 -3 -2 -1
0
1
2
3
4
5
-75 -50 -25
0
25 50 75 100 125
V
COM
(V)
TEMPERATURE (°C)
OFF-ISOLATION vs. FREQUENCY
0
CIRCUIT OF FIGURE 7
= 0dBm
V
IN
-20
-40
-60
-80
-100
1k
10k
100k
1M
10M
100M
0.1k
FREQUENCY (Hz)
CROSSTALK vs. FREQUENCY
0
CIRCUIT OF FIGURE 8
= 0dBm,
R = 50Ω
L
V
IN
-20
-40
-60
-80
-100
1k
10k
100k
1M
10M
100M
0.1k
FREQUENCY (Hz)
8
_______________________________________________________________________________________
Lo w -Vo lt a g e , Qu a d , S P DT,
CMOS An a lo g S w it c h
MAX394
_____________________P in De s c rip t io n
+5V
PIN
NAME
FUNCTION
D1
V+
1, 10, 11, 20
IN1–IN4
Logic-Level Inputs
2, 9, 12, 19
NO1–NO4
Normally Open Switches
MAX394
3, 8, 13, 18
COM1–COM4
Common Switch Poles
Normally Closed Switches
Negative Power Supply
Ground
*
*
*
*
4, 7,14, 17
NC1–NC4
V-
NO or NC
COM
5
6
GND
N.C.
V+
15
16
Not Internally Connected
Positive Power Supply
V-
D2
* INTERNAL PROTECTION DIODES
-5V
__________Ap p lic a t io n s In fo rm a t io n
Figure 1. Overvoltage Protection Using Blocking Diodes
Op e ra t io n w it h S u p p ly Vo lt a g e s
Ot h e r t h a n ±5 V
The MAX394 switch operates with ±2.7V to ±8V bipolar
supplies and a +2.7V to +15V single supply. In either
case, analog signals ranging from V+ to V- can be
switched. The Typical Operating Characteristics graphs
show the typical on-resistance variation with analog signal
and supply voltage. The usual on-resistance temperature
coefficient is 0.5%/°C (typ).
30mA, add a single diode (D1) for single-supply opera-
tion (Figure 1). If using dual supplies or if the analog
signal can dip below ground in single-supply operation,
add two small signal diodes (D1, D2), as shown in
Figure 1. Adding protection diodes reduces the analog
signal range to a diode drop above V- for D2. Leakage
is not affected by adding the diodes. On-resistance
increases by a small amount at low supply voltages.
Maximum supply voltage (V- to V+) must not exceed
17V.
P o w e r-S u p p ly S e q u e n c in g
a n d Ove rvo lt a g e P ro t e c t io n
Do not exceed the absolute maximum ratings, because
stresses beyond the listed ratings may cause perma-
ne nt d a ma g e to the d e vic e . Prop e r p owe r-s up p ly
sequencing is recommended for all CMOS devices.
Always apply V+, followed by V- (when using split sup-
plies) before applying analog signals or logic inputs,
especially if the analog or logic signals are not current-
limited. If this sequencing is not possible and if the ana-
log or logic inputs are not current-limited to less than
Adding diodes D1 and D2 also protects against some
overvoltage situations. With the circuit of Figure 1, if the
supply voltage is below the absolute maximum rating
and if a fault voltage up to the absolute maximum rating
is a pp lie d to a n a na log signa l pin, no da ma ge will
result. For example, with ±5V supplies, analog signals
up to ±8.5V will not damage the circuit of Figure 1. If
only a single fault signal is present, the fault voltage
can go to +12V or -12V without damage.
_______________________________________________________________________________________
9
Lo w -Vo lt a g e , Qu a d , S P DT,
CMOS An a lo g S w it c h
______________________________________________Te s t Circ u it s /Tim in g Dia g ra m s
t
t
< 20ns
< 20ns
R
F
3V
0V
50%
50%
V
IN
NC_
NO_
SWITCH OUTPUT
+10V
-10V
t
ON
COM_
MAX394
t
OFF
300Ω
IN_
t
OPEN
MAX394
GND V-
+10V
0V
50%
50%
V+
V
COM
LOGIC
INPUT
50%
50%
-10V
+15V
-15V
t
OFF
t
ON
t
OPEN
(REPEAT TEST FOR IN2, IN3, AND IN4.)
Figure 2. Switching-Time Test Circuit
+5V
C
+5V
C
V+
V+
COM
CAPACITANCE
COM
MAX394
MAX394
METER
CAPACITANCE
METER
IN
IN
0V or 2.4V
0V or 2.4V
NC
or NO
NC or
NO
C
C
GND
V-
GND
V-
-5V
-5V
Figure 4. Channel On Capacitance
Figure 3. Channel Off Capacitance
+5V
+3V
0V
LOGIC
INPUT
V+
50%
V
NO
O1
V
COM
COM_
IN_
R
C
L1
V
V
L1
NC
O2
COM
V
O1
0.9V
MAX394
O
R
L2
0V
SWITCH
OUTPUT V
C
L2
GND
V-
LOGIC
INPUT
COM
V
0.9V
O
O2
-5V
R = 1kΩ
0V
L
SWITCH
OUTPUT
C
= 35pF
t
t
D
L
D
C INCLUDES FIXTURE AND STRAY CAPACITANCE.
L
LOGIC 0 INPUT.
Figure 5. Break-Before-Make Delay
10 ______________________________________________________________________________________
Lo w -Vo lt a g e , Qu a d , S P DT,
CMOS An a lo g S w it c h
MAX394
_________________________________Te s t Circ u it s /Tim in g Dia g ra m s (c o n t in u e d )
+5V
V+
∆V
O
MAX394
NC OR NO
R
GEN
COM_
V
V
O
O
C
10nF
L
V
GEN
IN_
GND
IN_
V-
ON
ON
OFF
-5V
Q = (∆V )(C )
O
L
Figure 6. Charge Injection
+5V
V+
C
SIGNAL
GENERATOR
COM_
NC_
MAX394
0V,
2.4V
FREQUENCY
TESTED
SIGNAL
GENERATOR
IN_
ANALYZER
AUTOMATIC
SYNTHESIZER
TRACKING
SPECTRUM
ANALYZER
ANALYZER
CH A
OR NO_
1 MHz
CH B
GND
V-
C
R
L
50Ω
V
COM
V
ISO
= 20LOG
V
V
NC OR NO
-5V
C = 5pF
Figure 7. Off Isolation
+5V
V+
C
MAX394
SIGNAL
GENERATOR
50Ω
COM
NC OR NO
IN2
FREQUENCY
TESTED
SIGNAL
GENERATOR
IN
ANALYZER
0V or 2.4V
0V or 2.4V
TRACKING
SPECTRUM
ANALYZER
ANALYZER
CH A
CH B
AUTOMATIC
SYNTHESIZER
1MHz
NC or NO
GND
COM
V-
C
R
L
V
COM
V
CT
= 20LOG
-5V
V
V
NC OR NO
Figure 8. Crosstalk Test Circuit
______________________________________________________________________________________ 11
Lo w -Vo lt a g e , Qu a d , S P DT,
CMOS An a lo g S w it c h
___________________Ch ip To p o g ra p h y
NO1
IN4
IN1
NO4
COM1
NC1
COM4
NC4
MAX394
0. 128"
(3. 25mm)
V-
V+
GND
NC2
NC3
COM2
COM3
NO2
IN3
0. 100"
(2. 54mm)
NO3
IN2
SUBSTRATE IS CONNECTED TO V+
TRANSISTOR COUNT: 137
________________________________________________________P a c k a g e In fo rm a t io n
INCHES
MILLIMETERS
DIM
E
MIN
MAX
0.200
–
MIN
–
MAX
5.08
–
A
–
E1
D
A1 0.015
A2 0.125
A3 0.055
0.38
3.18
1.40
0.41
1.14
0.20
0.13
7.62
6.10
2.54
7.62
–
0.175
0.080
0.022
0.065
0.012
0.080
0.325
0.310
–
4.45
2.03
0.56
1.65
0.30
2.03
8.26
7.87
–
A3
A2
A1
A
L
B
0.016
B1 0.045
0.008
D1 0.005
0.300
E1 0.240
0.100
eA 0.300
C
0° - 15°
E
C
e
e
B1
eA
eB
–
–
B
eB
L
–
0.400
0.150
10.16
3.81
0.115
2.92
D1
INCHES
MILLIMETERS
PKG. DIM
PINS
Plastic DIP
PLASTIC
DUAL-IN-LINE
PACKAGE
(0.300 in.)
MIN
MAX MIN
MAX
8
P
P
P
P
P
N
D
D
D
D
D
D
0.348 0.390 8.84
9.91
14
16
18
20
24
0.735 0.765 18.67 19.43
0.745 0.765 18.92 19.43
0.885 0.915 22.48 23.24
1.015 1.045 25.78 26.54
1.14 1.265 28.96 32.13
21-0043A
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
12 __________________Ma x im In t e g ra t e d P ro d u c t s , 1 2 0 S a n Ga b rie l Drive , S u n n yva le , CA 9 4 0 8 6 (4 0 8 ) 7 3 7 -7 6 0 0
© 1995 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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