MAX394MWP/PR [MAXIM]
Low-Voltage, Quad, SPDT, CMOS Analog Switch; 低电压，四路， SPDT ， CMOS模拟开关
| 型号： | MAX394MWP/PR |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Low-Voltage, Quad, SPDT, CMOS Analog Switch |
| 文件： | 总13页 (文件大小：219K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-0391; Rev ±; 9/0ꢁ
Low-Voltage, Quad, SPDT,
CMOS Analog Switch
MAX394
_______________General Description
____________________________Features
♦ 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 ±±.ꢀ7 to ±ꢁ7, or with a single supplꢂ of ꢃ±.ꢀ7 to
ꢃ157. The MAX394 offers low on-resistance (less than
35Ω), guaranteed to match within ±Ω between channels
and to remain flat over the analog signal range (Δ4Ω
max). It also offers break-before-make switching (10ns
tꢂpical), with turn-off times less than ꢀ5ns 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, Δ4Ω 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 extremelꢂ low charge injection (10pC), low
power consumption (10µW), and electrostatic discharge
(ESD) greater than ±0007.
Ordering Information
PART
MAX394CPP
MAX394CWP
MAX394C/D
TEMPERATURE
0°C to ꢃꢀ0°C
PIN-PACKAGE
±0 Plastic DIP
±0 Wide SO
Dice*
Logic inputs are TTL and CMOS compatible and guaran-
teed over a ꢃ0.ꢁ7 to ꢃ±.47 range for supplꢂ voltages up
to ꢃꢁ7. When supplies exceed ꢃꢁ7, the inputs are tꢂpi-
callꢂ ꢃ0.ꢁ7 to ꢃ47. Logic inputs and switched analog sig-
nals can range anꢂwhere between the supplꢂ voltages
without damage.
0°C to ꢃꢀ0°C
0°C to ꢃꢀ0°C
MAX394EPP
-40°C to ꢃꢁ5°C
-40°C to ꢃꢁ5°C
-40°C to ꢃꢁ5°C
-55°C to ꢃꢁ5°C
-55°C to ꢃ1±5°C
-55°C to ꢃ1±5°C
±0 Plastic DIP
±0 Wide SO
±0 TSSOP
MAX394EWP
MAX394EUP
MAX394MJP
MAX394MWP/PR
MAX394MWP/PR-T
________________________Applications
±0 CERDIP**
±0 Wide SO**
±0 Wide SO**
Test Equipment
Communications Sꢂstems
PBX, PABX
Portable Instruments
Audio Signal Routing
Set-Top Boxes
*Contact factorꢂ for dice specifications.
**Contact factorꢂ for availabilitꢂ.
Heads-Up Displaꢂs
Typical Operating Circuit
__________________Pin Configuration
INPUTS
OUTPUTS
V
1
V
- V
2
1
TOP VIEW
IN1
NO1
IN4
1
2
20
19
18
17
16
15
14
13
12
11
V
2
NO4
COM4
NC4
V+
COM1
NC1
3
OSC
IN
4
V-
GND
5
MAX394
N.C.
NC3
COM3
NO3
IN3
6
NC2
7
COM2
NO2
8
V
- V
4
V
3
3
9
IN2
10
V
4
DIP/SO/TSSOP
SWITCHES ARE SHOWN WITH LOGIC "0" INPUT
N.C. = NOT INTERNALLY CONNECTED
FLYING CAPACITOR
LEVEL TRANSLATOR
(2-CHANNEL)
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Low-Voltage, Quad, SPDT,
CMOS Analog Switch
ABSOLUTE MAXIMUM RATINGS
7oltage Referenced to GND
Continuous Power Dissipation (T = ꢃꢀ0°C)
A
7ꢃ.......................................................................-0.37 to ꢃ1ꢀ7
7- ........................................................................ꢃ0.37 to -1ꢀ7
7ꢃ to 7-...............................................................-0.37 to ꢃ1ꢀ7
COM_, NO_, NC_, IN_ (Note 1)..................(7- - ±7) to (7ꢃ ꢃ ±7)
or 30mA, whichever occurs first
Continuous Current, Anꢂ Pin...............................................30mA
Peak Current, Anꢂ Pin
Plastic DIP (derate 10.53mW/°C aboveꢃꢀ0°C) ...........ꢁ4±mW
Narrow SO (derate ꢁ.ꢀ0mW/°C above ꢃꢀ0°C) ............696mW
CERDIP (derate 10.00mW/°C above ꢃꢀ0°C)...............ꢁ00mW
TSSOP (derate 11.00mW/°C above ꢃꢀ0°C) ................ꢁꢀ9mW
Operating Temperature Ranges
MAX394C_ P.......................................................0°C to ꢃꢀ0°C
MAX394E_ P....................................................-40°C to ꢃꢁ5°C
MAX394MJP ..................................................-55°C to ꢃ1±5°C
Storage Temperature Range.............................-65°C to ꢃ150°C
Lead Temperature (soldering, 10s) .................................ꢃ300°C
MAX394
(pulsed at 1ms, 10% dutꢂ cꢂcle max) ..........................100mA
Note 1: Signals on NC, NO, COM, or IN exceeding 7ꢃ or 7- are clamped bꢂ internal diodes. Limit forward diode current to
maximum current rating.
Stresses beꢂond those listed under “Absolute Maximum Ratings” maꢂ cause permanent damage to the device. These are stress ratings onlꢂ, and functional
operation of the device at these or anꢂ other conditions beꢂond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods maꢂ affect device reliabilitꢂ.
ELECTRICAL CHARACTERISTICS—Dual Supplies
(7ꢃ = 57 ±10%, 7- = -57 ±10%, GND = 07, 7
= ±.47, 7
= 0.ꢁ7, T = T
to T
, unless otherwise noted.)
MAX
INH
INL
A
MIN
TEMP.
RANGE
MIN
TYP
(Note 2)
MAX
PARAMETER
SYMBOL
CONDITIONS
UNITS
SWITCH
7
COM
,
Analog Signal Range
On-Resistance
7
7
,
(Note 3)
7ꢃ = 4.57, 7- = -4.57,
7-
7ꢃ
7
NO
NC
C, E
M
±0
±0
35
30
T
=
A
7
7
= ±3.57,
NC or NO
ꢃ±5°C
R
I
= 10mA,
Ω
ON
COM
T
A
= T
MAX
MIN
7
INH
7
INL
= ±.47,
= 0.ꢁ7
C, E, M
45
to T
T
=
A
7
7
= ±37,
C, E, M
C, E, M
C, E, M
C, E, M
0.5
±
4
4
6
NC or NO
On-Resistance Match Between
Channels (Note 4)
ꢃ±5°C
= T
ΔR
I
= 10mA,
Ω
Ω
ON
COM
T
A
MIN
7ꢃ = 57, 7- = -57
to T
MAX
=
T
A
7
7
COM
= 37, 07,
= 10mA,
NC or NO
On-Resistance Flatness
(Note 4)
ꢃ±5°C
= T
R
-37; I
7ꢃ = 57; 7- = -57
FLAT(ON)
T
A
MIN
to T
MAX
C, E
M
-0.±
-0.1
-±.5
-±0
-0.01
-0.01
ꢃ0.±
ꢃ0.1
ꢃ±.5
ꢃ±0
T
=
A
7
7
= ±4.57,
I
I
COM
NC
NC(OFF)
or
NO(OFF)
ꢃ±5°C
NC or NO Off-Leakage Current
(Note 5)
or 7
= ±4.57,
nA
nA
NO
C, E
M
T
A
= T
MAX
MIN
7ꢃ = 5.57,7- = -5.57
to T
C, E
M
-0.4
-0.±
-5.0
-±0
-0.04
-0.04
ꢃ0.4
ꢃ0.±
ꢃ5.0
ꢃ±0
T
A
=
7
7
= ±4.57,
COM
NC
ꢃ±5°C
COM Leakage Current
(Note 5)
I
COM(ON)
or 7
= ±4.57,
NO
C, E
M
T
A
= T
MAX
MIN
7ꢃ = 5.57, 7- = -5.57
to T
2
_______________________________________________________________________________________
Low-Voltage, Quad, SPDT,
CMOS Analog Switch
MAX394
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(7ꢃ = 57 ±10%, 7- = -57 ±10%, GND = 07, 7
= ±.47, 7
= 0.ꢁ7, 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
7oltage High
I
7
7
= ±.47, all others = 0.ꢁ7
= 0.ꢁ7, all others = ±.47
-1.0
ꢃ0.005
ꢃ0.005
ꢃ1.0
ꢃ1.0
µA
µA
IN
INH
Input Current with Input
7oltage Low
I
-1.0
±.4
IN
INL
Logic High Input 7oltage
Logic Low Input 7oltage
DYNAMIC
7
T
T
= T
= T
to T
MAX
7
7
A
MIN
MIN
A_H
7
to T
0.ꢁ
A
MAX
A_L
T
T
T
T
= ꢃ±5°C
ꢁ±
5ꢀ
130
1ꢀ5
ꢀ5
A
A
A
A
Turn-On Time
Turn-Off Time
t
7
7
= 37, Figure ±
= 37, Figure ±
ns
ns
ns
pC
ON
COM
= T
to T
MIN
MAX
MAX
= ꢃ±5°C
= T to T
t
OFF
COM
100
MIN
Break-Before-Make
Time Delaꢂ (Note 3)
t
D
Figure 5
C = 1.0nF, 7
T
= ꢃ±5°C
= ꢃ±5°C
±
10
5
A
A
Charge Injection
(Note 3)
= 07,
GEN
= 0Ω, Figure 6
L
GEN
7
CTE
T
10
R
R = 50Ω, C = 5pF,
f = 1MHz, Figure 3
L
L
Off-Isolation (Note 6)
Crosstalk (Note ꢀ)
Off-Capacitance
7
T
A
T
A
T
A
T
A
T
A
= ꢃ±5°C
= ꢃ±5°C
= ꢃ±5°C
= ꢃ±5°C
= ꢃ±5°C
66
ꢁꢁ
1±
1±
39
dBm
dBm
pF
ISO
R = 50Ω, C = 5pF,
L
L
7
CT
f = 1MHz, Figure ꢁ
C
OFF
f = 1MHz, Figure 3
COM Off-Capacitance
C
f = 1MHz, Figure 3
f = 1MHz, Figure 4
pF
COM(OFF)
Channel On-Capacitance C
pF
COM(ON)
SUPPLY
Power-Supplꢂ Range
±±.4
-1.0
±ꢁ
7
All channels on or off,
7ꢃ = 5.57, 7- = -5.57, 7 = 07 or 7ꢃ
Positive Supplꢂ Current
Iꢃ
I-
ꢃ0.06
-0.01
ꢃ1.0
µA
IN
Negative Supplꢂ
Current
All channels on or off,
7ꢃ = 5.57, 7- = -5.57, 7 = 07 or 7ꢃ
-1.0
ꢃ1.0
µA
IN
_______________________________________________________________________________________
3
Low-Voltage, Quad, SPDT,
CMOS Analog Switch
ELECTRICAL CHARACTERISTICS—Single +5V Supply
(7ꢃ = 57 ±10%, 7- = 07, GND = 07, 7
= ±.47, 7
= 0.ꢁ7, T = T
A
to T
, unless otherwise noted.)
MAX
INH
INL
MIN
TEMP.
RANGE
MIN
TYP
(Note 2)
MAX
PARAMETER
SWITCH
SYMBOL
CONDITIONS
UNITS
7
COM,
MAX394
Analog Signal Range
7
NO,
(Note 3)
07
7ꢃ
7
7
NC
C, E
M
±5
65
60
7ꢃ = 5.07, 7- = 07,
= 3.57,
T = ꢃ±5°C
A
7
7
NC or NO
On-Resistance
R
I
= 1.0mA,
Ω
COM
ON
7
INH
7
INL
= ±.47,
= 0.ꢁ7
T = T
A MIN
to T
MAX
C, E, M
ꢀ5
T = ꢃ±5°C C, E, M
0.5
±
4
6
ꢁ
A
7
7
= 37,
NC or NO
On-Resistance Match
Between Channels (Note 4)
ΔR
I
= 1.0mA,
Ω
Ω
ON
COM
T
to T
= T
A
MIN
MAX
7ꢃ = 57
C, E, M
T = ꢃ±5°C C, E, M
A
7
7
COM
= 37, ±7,
= 1.0mA;
NC or NO
On-Resistance Flatness
(Note 4)
R
17; I
7ꢃ = 57; 7- = 07
FLAT(ON)
T
to T
= T
A
MIN
MAX
C, E, M
C, E
M
-0.±
-0.1
-±.5
-±0
-0.01
-0.01
ꢃ0.±
ꢃ0.1
ꢃ±.5
ꢃ±0
T = ꢃ±5°C
A
I
I
7
7
= 07,
NC(OFF)
or
NO(OFF)
COM
NC
NC or NO Off-Leakage
Current (Note ꢁ)
or 7
= 4.57,
nA
nA
NO
C, E
M
T
to T
= T
A
MIN
MAX
7ꢃ = 5.57, 7- = 07
C, E
M
-0.4
-0.±
-5.0
-±0
-0.04
-0.04
ꢃ0.4
ꢃ0.±
ꢃ5.0
ꢃ±0
T = ꢃ±5°C
A
7
7
= 4.57,
COM
NC
COM Leakage Current
(Note ꢁ)
I
or 7
= 4.57,
COM(ON)
NO
C, E
M
T
to T
= T
A
MIN
MAX
7ꢃ = 5.57, 7- = 07
DIGITAL LOGIC INPUT
Input Current with Input
7oltage High
I
7
7
= ±.47, all others = 0.ꢁ7
-1.0
-1.0
ꢃ0.005
ꢃ0.005
ꢃ1.0
ꢃ1.0
µA
µA
INH
IN
Input Current with Input
7oltage Low
I
= 0.ꢁ7, all others = ±.47
INL
IN
4
_______________________________________________________________________________________
Low-Voltage, Quad, SPDT,
CMOS Analog Switch
MAX394
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
(7ꢃ = ꢃ57 ±10%, 7- = 07, GND = 07, 7
= ±.47, 7
= 0.ꢁ7, T = T
to T
, unless otherwise noted.)
MAX
INH
INL
A
MIN
MIN
TYP
(Note 2)
MAX
PARAMETER
DYNAMIC
SYMBOL
CONDITIONS
UNITS
T
T
T
T
= ꢃ±5°C
160
60
±50
300
1±5
1ꢀ5
A
A
A
A
Turn-On Time (Note 3)
Turn-Off Time (Note 3)
t
7
7
= 37, Figure ±
= 37, Figure ±
ns
ON
COM
= T
to T
MIN
MAX
MAX
= ꢃ±5°C
= T to T
t
ns
ns
OFF
COM
MIN
Break-Before-Make Time
Delaꢂ (Note 3)
t
D
T
= ꢃ±5°C
= ꢃ±5°C
5
±0
3
A
A
Charge Injection
(Note 3)
C = 1.0nF, 7
R
= 07,
GEN
L
GEN
7
CTE
T
5
pC
= 0Ω
SUPPLY
Power-Supplꢂ Range
7ꢃ
Iꢃ
±.4
16
7
All channels on or off, 7 = 07 or 7ꢃ,
IN
7ꢃ = 5.57, 7- = 07
Positive Supplꢂ Current
Negative Supplꢂ Current
-1.0
ꢃ0.01
-0.01
ꢃ1.0
µA
All channels on or off, 7 = 07 or 7ꢃ,
IN
7ꢃ = 5.57, 7- = 07
I-
-1.0
ꢃ1.0
µA
ELECTRICAL CHARACTERISTICS—Single +3.3V Supply
(7ꢃ = 3.07 to 3.67, GND = 07, 7
= ±.47, 7
= 0.ꢁ7, T = T
to T
, unless otherwise noted.)
MAX
INH
INL
A
MIN
TEMP.
RANGE
MIN
TYP
(Note 2)
MAX
PARAMETER
SWITCH
SYMBOL
CONDITIONS
UNITS
7
COM,
Analog Signal Range
7
NO,
(Note 3)
0
7ꢃ
7
7
NC
C, E
M
ꢀ5
1ꢁ5
1ꢀ5
7ꢃ = 37, 7- = 07,
= 1.57,
T = ꢃ±5°C
A
7
7
NC or NO
On-Resistance
R
I
= 1.0mA,
Ω
COM
ON
7
INH
7
INL
= ±.47,
= 0.ꢁ7
T = T
A MIN
to T
MAX
C, E, M
±50
C, E
M
-0.±
-0.1
-±.5
-5.0
-0.4
-0.±
-5.0
-±0.0
-0.01
-0.01
ꢃ0.±
ꢃ0.1
ꢃ±.5
ꢃ5.0
ꢃ0.4
ꢃ0.±
ꢃ5.0
ꢃ±0.0
T = ꢃ±5°C
A
I
7
7
= 07,
NO
NC(OFF)
or
COM
NC or NO Off-Leakage
Current (Note ꢁ)
or 7
= 37,
nA
nA
NC
C, E
M
T
to T
= T
A
MIN
MAX
I
7ꢃ = 3.67, 7- = 07
NO(OFF)
C, E
M
-0.04
-0.04
T
A
= ꢃ±5°C
7
7
= 37,
COM
NC
COM Leakage Current
(Note ꢁ)
I
or 7
= 37,
COM(ON)
NO
C, E
M
T
to T
= T
A
MIN
MAX
7ꢃ = 3.67, 7- = 07
_______________________________________________________________________________________
5
Low-Voltage, Quad, SPDT,
CMOS Analog Switch
ELECTRICAL CHARACTERISTICS—Single +3.3V Supply (continued)
(7ꢃ = 3.07 to 3.67, GND = 07, 7
= ±.47, 7
= 0.ꢁ7, 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
7oltage High
I
7
7
= ±.47, all others = 0.ꢁ7
= 0.ꢁ7, all others = ±.47
-1.0
-1.0
ꢃ0.005
ꢃ0.005
ꢃ1.0
ꢃ1.0
µA
µA
INH
IN
MAX394
Input Current with Input
7oltage Low
I
INL
IN
DYNAMIC
Turn-On Time (Note 3)
t
7
7
= 1.57, Figure ±
= 1.57, Figure ±
T
A
T
A
T
A
T
A
= ꢃ±5°C
= ꢃ±5°C
400
150
ns
ns
ns
pC
ON
COM
Turn-Off Time (Note 3)
t
OFF
COM
Break-Before-Make Delaꢂ
(Note 3)
t
D
Figure 5
C = 1.0nF, 7
= ꢃ±5°C
= ꢃ±5°C
5
±0
1
= 07,
GEN
= 0Ω, Figure 6
L
GEN
Charge Injection (Note 3)
7
CTE
5
R
SUPPLY
Power-Supplꢂ Range
7ꢃ
Iꢃ
±.ꢀ
16
7
All channels on or off, 7 = 07 or 7ꢃ,
IN
7ꢃ = 3.67, 7- = 07
Positive Supplꢂ Current
Negative Supplꢂ Current
-1.0
ꢃ0.01
-0.01
ꢃ1.0
µA
All channels on or off, 7 = 07 or 7ꢃ,
IN
7ꢃ = 3.67, 7- = 07
I-
-1.0
ꢃ1.0
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 bꢂ design.
Note 4: ΔR
= ΔR (max) - ΔR (min). On-resistance match between channels and flatness are guaranteed onlꢂ 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 bꢂ correlation at room temperature.
Note 6: See Figure 6. Off-isolation = ±0log
7
/7
or 7 , 7
= output, 7
or
= input to off switch.
10 COM NC
NO COM
NC
NO
Note 7: Between anꢂ two switches. See Figure 3.
Note 8: Leakage testing at single supplꢂ is guaranteed bꢂ testing with dual supplies.
6
_______________________________________________________________________________________
Low-Voltage, Quad, SPDT,
CMOS Analog Switch
MAX394
__________________________________________Typical Operating Characteristics
(T = ꢃ±5°C, unless otherwise noted.)
A
ON-RESISTANCE vs. V
(SINGLE SUPPLY)
ON-RESISTANCE vs. V
COM
OVER TEMPERATURE (DUAL SUPPLIES)
ON-RESISTANCE vs. V
COM
COM
(DUAL SUPPLIES)
50
40
30
20
100
90
35
V+ = +5V
V- = -5V
30
80
25
20
15
10
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
0
1
2
3
4
5
6
-5 -4 -3 -2 -1
0
1
2
3
4
5
-8 -6 -4
-2
0
2
4
6
8
V
COM
(V)
V
COM
(V)
V
COM
(V)
ON-RESISTANCE vs. V
OVER TEMPERATURE (SINGLE SUPPLY)
OFF-LEAKAGE CURRENT
vs. TEMPERATURE
ON-LEAKAGE CURRENT
vs. TEMPERATURE
COM
50
40
30
20
1000
1000
V+ = 5V
V- = 0V
V+ = 5.5V
V- = -5.5V
or V
V+ = 5.5V
V- = -5.5V
4.5V
+125°C
100
10
100
10
V
NC
=
4.5V
V
COM
=
NO
+85°C
+25°C
I
COM(ON)
I
COM(OFF)
1
0.1
1
0.1
0.01
0.01
I
or I
NO(ON)
I
or I
NO(OFF)
NC (OFF)
NC(OFF)
10
0
0.001
0.0001
0.001
0.0001
0
1
2
3
4
5
6
-75 -50 -25
0
25 50 75 100 125
-75 -50 -25
0
25 50 75 100 125
V
COM
(V)
TEMPERATURE (°C)
TEMPERATURE (°C)
_______________________________________________________________________________________
7
Low-Voltage, Quad, SPDT,
CMOS Analog Switch
____________________________Typical Operating Characteristics (continued)
(T = ꢃ±5°C, unless otherwise noted).
A
CHARGE INJECTION
SUPPLY CURRENT vs.
TEMPERATURE
vs. V
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 = 50W
L
V
IN
-20
-40
-60
-80
-100
1k
10k
100k
1M
10M
100M
0.1k
FREQUENCY (Hz)
8
_______________________________________________________________________________________
Low-Voltage, Quad, SPDT,
CMOS Analog Switch
MAX394
Pin Description
+5V
PIN
NAME
FUNCTION
D1
1, 10, 11, ±0
IN1–IN4
Logic-Level Inputs
V+
±, 9, 1±, 19
NO1–NO4
Normallꢂ Open Switches
MAX394
3, ꢁ, 13, 1ꢁ
COM1–COM4
Common Switch Poles
Normallꢂ Closed Switches
Negative Power Supplꢂ
Ground
*
*
*
*
NO or NC
4, ꢀ,14, 1ꢀ
NC1–NC4
7-
COM
5
6
GND
N.C.
7ꢃ
15
16
Not Internallꢂ Connected
Positive Power Supplꢂ
V-
D2
* INTERNAL PROTECTION DIODES
-5V
__________Applications Information
Figure 1. Overvoltage Protection Using Blocking Diodes
Operation with Supply Voltages
Other than ±±V
The MAX394 switch operates with ±±.ꢀ7 to ±ꢁ7 bipolar
supplies and a ꢃ±.ꢀ7 to ꢃ157 single supplꢂ. In either
case, analog signals ranging from 7ꢃ to 7- can be
switched. The Tꢂpical Operating Characteristics graphs
show the tꢂpical on-resistance variation with analog signal
and supplꢂ voltage. The usual on-resistance temperature
coefficient is 0.5%/°C (tꢂp).
30mA, add a single diode (D1) for single-supplꢂ opera-
tion (Figure 1). If using dual supplies or if the analog
signal can dip below ground in single-supplꢂ operation,
add two small signal diodes (D1, D±), as shown in
Figure 1. Adding protection diodes reduces the analog
signal range to a diode drop above 7- for D±. Leakage
is not affected bꢂ adding the diodes. On-resistance
increases bꢂ a small amount at low supplꢂ voltages.
Maximum supplꢂ voltage (7- to 7ꢃ) must not exceed
1ꢀ7.
Power-Supply Sequencing
and Overvoltage Protection
Do not exceed the absolute maximum ratings, because
stresses beꢂond the listed ratings maꢂ cause perma-
nent damage to the device. Proper power-supplꢂ
sequencing is recommended for all CMOS devices.
Alwaꢂs applꢂ 7ꢃ, followed bꢂ 7- (when using split sup-
plies) before applꢂing analog signals or logic inputs,
especiallꢂ 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 D± also protects against some
overvoltage situations. With the circuit of Figure 1, if the
supplꢂ voltage is below the absolute maximum rating
and if a fault voltage up to the absolute maximum rating
is applied to an analog signal pin, no damage will
result. For example, with ±57 supplies, analog signals
up to ±ꢁ.57 will not damage the circuit of Figure 1. If
onlꢂ a single fault signal is present, the fault voltage
can go to ꢃ1±7 or -1±7 without damage.
_______________________________________________________________________________________
9
Low-Voltage, Quad, SPDT,
CMOS Analog Switch
______________________________________________Test Circuits/Timing Diagrams
t
t
< 20ns
< 20ns
R
F
3V
0V
50%
50%
V
IN
NC_
NO_
SWITCH OUTPUT
+10V
-10V
t
COM_
ON
MAX394
t
OFF
300Ω
IN_
t
OPEN
50%
MAX394
+10V
0V
50%
V+
GND
V-
V
COM
LOGIC
INPUT
50%
50%
-10V
+15V
-15V
t
OFF
t
t
OPEN
ON
(REPEAT TEST FOR IN2, IN3, AND IN4.)
Figure ±. 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 3. Channel Off-Capacitance
Figure 4. Channel On-Capacitance
+5V
+3V
LOGIC
INPUT
V+
50%
V
NO
O1
0V
V
COM_
IN_
COM
R
C
L1
V
V
V
L1
NC
O2
COM
V
O1
0.9V
MAX394
O
R
L2
0V
SWITCH
OUTPUT
C
L2
GND
V-
LOGIC
INPUT
COM
V
0.9V
O
O2
-5V
R
C
= 1kΩꢀ
= 35pF
0V
L
L
SWITCH
OUTPUT
t
t
D
D
C INCLUDES FIXTURE AND STRAY CAPACITANCE.
L
LOGIC 0 INPUT.
Figure 5. Break-Before-Make Delaꢂ
10 ______________________________________________________________________________________
Low-Voltage, Quad, SPDT,
CMOS Analog Switch
MAX394
_________________________________Test Circuits/Timing Diagrams (continued)
+5V
V+
ΔV
O
MAX394
R
GEN
COM_
GND
NC OR NO
V
V
O
O
C
10nF
L
V
GEN
IN_
IN_
V-
ON
ON
OFF
-5V
Q = (ΔV )(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
V
COM
50Ω
V
= 20LOG
ꢀ
ISO
V
V
NC OR NO
-5V
C = 5pF
Figure ꢀ. 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
= 20LOG
CT
-5V
V
V
NC OR NO
Figure ꢁ. Crosstalk Test Circuit
______________________________________________________________________________________ 11
Low-Voltage, Quad, SPDT,
CMOS Analog Switch
___________________Chip Topography
Package Information
For the latest package outline information and land patterns, go
NO1
IN4
IN1
NO4
to www.maxim-ic.com/packages.
PACKAGE TYPE PACKAGE CODE DOCUMENT NO.
±0 Plastic DIP
±0 Wide SO
±0 TSSOP
P±0-4
W±6-1
U±0-±
J±0-±
21-0043
21-0042
21-0066
21-0335
COM1
NC1
COM4
NC4
MAX394
±0 CERDIP
0.128"
(3.25mm)
V-
V+
GND
NC2
NC3
COM2
COM3
NO2
IN3
0.100"
(2.54mm)
NO3
IN2
SUBSTRATE IS CONNECTED TO 7ꢃ
TRANSISTOR COUNT: 13ꢀ
12 ______________________________________________________________________________________
Low-Voltage, Quad, SPDT,
CMOS Analog Switch
MAX394
Revision History
REVISION
NUMBER
REVISION
DATE
PAGES
DESCRIPTION
CHANGED
±
9/0ꢁ
Added information for rugged plastic product
1
Maxim cannot assume responsibilitꢂ for use of anꢂ circuitrꢂ other than circuitrꢂ entirelꢂ embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitrꢂ and specifications without notice at anꢂ time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13
© ±00ꢁ Maxim Integrated Products
is a registered trademark of Maxim Integrated Products, Inc.
相关型号：
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MAXIM
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