19-1497; Rev 0; 8/99
Dual, 5
Ω
Analog Switches
General Description
The MAX4621/MAX4622/MAX4623 are precision, dual,
high-speed analog switches. The single-pole/single-
throw (SPST) MAX4621 and double-pole/single-throw
(DPST) MAX4623 dual switches are normally open
(NO). The single-pole/double-throw (SPDT) MAX4622
has two normally closed (NC) and two NO poles. All
three parts offer low 5Ω on-resistance guaranteed to
match to within 0.5Ω between channels and to remain
flat over the full analog signal range (∆0.5Ω max). They
also offer low leakage (<500pA at +25°C, <5nA at
+85°C) and fast switching times (turn-on time <250ns,
turn-off time <200ns).
These analog switches are ideal in low-distortion appli-
cations and are the preferred solution over mechanical
relays in automatic test equipment or applications
where current switching is required. They have low
power requirements, use less board space, and are more
reliable than mechanical relays.
The MAX4621/MAX4622/MAX4623 are pin-compatible
replacements for the DG401/DG403/DG405, respective-
ly, offering improved overall performance. These mono-
lithic switches operate from a single positive supply
(+4.5V to +36V) or with bipolar supplies (±4.5V to ±18V)
while retaining CMOS-logic input compatibility.
Features
o
Low On-Resistance: 3Ω (typ), 5Ω (max)
o
Guaranteed R
ON
Match Between Channels
(0.5Ω max)
o
Guaranteed Break-Before-Make Operation
(MAX4622)
o
Guaranteed Off-Channel Leakage <5nA at +85°C
o
Single-Supply Operation (+4.5V to +36V)
Bipolar-Supply Operation (±4.5V to ±18V)
o
TTL/CMOS-Logic Compatible
o
Rail-to-Rail
®
Analog Signal Handling Capability
o
Pin Compatible with DG401/DG403/DG405
MAX4621/MAX4622/MAX4623
Applications
Reed Relay Replacement
Test Equipment
Communication Systems
Data-Acquisition Systems
Military Radios
PBX, PABX Systems
Audio-Signal Routing
Avionics
Ordering Information
PART
MAX4621CSE
MAX4621CPE
TEMP. RANGE
0°C to +70°C
0°C to +70°C
PIN-PACKAGE
16 Narrow SO
16 Plastic DIP
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Ordering Information continued at end of data sheet.
Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
COM1
1
N.C.
2
N.C.
3
N.C.
4
N.C.
5
N.C.
6
N.C.
7
COM2
8
16
NO1
15
IN1
14
V-
13
GND
COM1
1
N.C.
2
COM3
3
NC3
4
NC4
5
COM4
6
N.C.
7
COM2
8
16
NO1
15
IN1
14
V-
13
GND
COM1
1
N.C.
2
COM3
3
NO3
4
NO4
5
COM4
6
N.C.
7
COM2
8
16
NO1
15
IN1
14
V-
13
GND
MAX4621
12
V
L
11
V+
10
IN2
9
NO2
MAX4622
12
V
L
11
V+
10
IN2
9
NO2
MAX4623
12
V
L
11
V+
10
IN2
9
NO2
SO/DIP
MAX4621
LOGIC
SWITCH
0
1
OFF
ON
LOGIC
0
1
SO/DIP
MAX4622
SWITCHES 1, 2 SWITCHES 3, 4
OFF
ON
ON
OFF
SO/DIP
MAX4623
LOGIC
SWITCH
0
1
OFF
ON
SWITCHES SHOWN FOR LOGIC "0" INPUT
________________________________________________________________
Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
Dual, 5
Ω
Analog Switches
MAX4621/MAX4622/MAX4623
ABSOLUTE MAXIMUM RATINGS
(Voltages Referenced to GND)
V+ to GND ..............................................................-0.3V to +44V
V- to GND ...............................................................+0.3V to -44V
V+ to V-...................................................................-0.3V to +44V
V
L
to GND.....................................................-0.3V to (V+ + 0.3V)
All Other Pins to GND (Note 1) ........... (V- - 0.3V) to (V+ + 0.3V)
Continuous Current (COM_, NO_, NC_) ........................±100mA
Peak Current (COM_, NO_, NC_)
(pulsed at 1ms, 10% duty cycle) ............................... ±300mA
Continuous Power Dissipation (T
A
= +70°C)
Narrow SO (derate 8.70mW/°C above +70°C) .............696mW
Narrow DIP (derate 10.53mW/°C above +70°C) ..........842mW
Operating Temperature Ranges
MAX462_C_ _ ......................................................0°C to +70°C
MAX462_E_ _....................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
Note 1:
Signals on NO_, NC_, or COM_ exceeding V+ or V- are clamped by internal diodes. Limit forward-diode current to maxi-
mum 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+ = +15V, V- = -15V, V
L
= +5V, GND = 0, V
INH
= +2.4V, V
INL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values
are at T
A
= +25°C.) (Note 2)
PARAMETER
ANALOG SWITCH
Input Voltage Range
(Note 3)
On-Resistance
On-Resistance Match
Between Channels
(Notes 3, 4)
On-Resistance Flatness
(Notes 3, 5)
Off-Leakage Current
(NO_ or NC_) (Note 6)
COM_ Off-Leakage Current
(Note 6)
COM_ On-Leakage Current
(Note 6)
LOGIC INPUT
Input Current with Input
Voltage High
Input Current with Input
Voltage Low
Logic Input Voltage High
Logic Input Voltage Low
I
INH
I
INL
V
INH
V
INL
V
IN_
= 2.4V
V
IN_
= 0.8V
-0.5
-0.5
2.4
0.8
0.001
0.001
0.5
0.5
µA
µA
V
V
V
COM_
,
V
NO_
,
V
NC_
R
ON
I
COM_
= 10mA,
V
NO_
or V
NC_
= ±10V
I
COM_
= 10mA,
V
NO_
or V
NC_
= ±10V
I
COM_
= 10mA;
V
NO_
or V
NC_
= -5V,
0, 5V
V
NO_
or V
NC_
= ±10V,
–
V
COM_
= +10V
V
COM_
= ±10V,
–
V
NO_
or V
NC_
= +10V
V
COM_
= ±10V,
–
V
NO_
or V
NC_
= +10V
or floating
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
-0.5
-5
-0.5
-5
-1
-10
0.02
0.01
0.01
0.2
0.25
V-
3
V+
5
7
0.5
0.7
0.5
0.7
0.5
5
0.5
5
1
nA
10
nA
nA
Ω
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Ω
∆R
ON
Ω
R
FLAT(ON)
I
NO_
, I
NC_
I
COM_(OFF)
I
COM_(ON)
2
_______________________________________________________________________________________
Dual, 5
Ω
Analog Switches
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = +15V, V- = -15V, V
L
= +5V, GND = 0, V
INH
= +2.4V, V
INL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values
are at T
A
= +25°C.) (Note 2)
PARAMETER
POWER SUPPLY
Power-Supply Range
Positive Supply Current
Negative Supply Current
Logic Supply Current
Ground Current
I+
I-
I
L
I
GND
V
IN_
= 0 or 5V
V
IN_
= 0 or 5V
V
IN_
= 0 or 5V
V
IN_
= 0 or 5V
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
5
25
480
-62
-60
34
34
150
90
±4.5
-0.5
-5
-0.5
-5
-0.5
-5
-0.5
-5
120
0.001
0.001
0.001
0.001
±20.0
0.5
5
0.5
5
0.5
5
0.5
5
250
325
200
275
V
µA
µA
µA
µA
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX4621/MAX4622/MAX4623
SWITCH DYNAMIC CHARACTERISTICS
Turn-On Time
Turn-Off Time
Break-Before-Make Time
Delay (MAX4622 only)
Charge Injection
Off-Isolation (Note 7)
Crosstalk (Note 8)
NC_ or NO_ Capacitance
COM_ Off-Capacitance
On-Capacitance
t
ON
t
OFF
t
D
Q
V
ISO
V
CT
C
OFF
C
COM
C
COM
V
COM_
= ±10V,
Figure 2
V
COM_
= ±10V,
Figure 2
ns
ns
ns
pC
dB
dB
pF
pF
pF
V
COM_
= ±10V, Figure 3, T
A
= +25°C
C
L
= 1.0nF, V
GEN
= 0, R
GEN
= 0, Figure 4,
T
A
= +25°C
R
L
= 50Ω, f = 1MHz, Figure 5, T
A
= +25°C
R
L
= 50Ω, f = 1MHz, Figure 6, T
A
= +25°C
f = 1MHz, Figure 7, T
A
= +25°C
f = 1MHz, Figure 7, T
A
= +25°C
f = 1MHz, Figure 8, T
A
= +25°C
_______________________________________________________________________________________
3
Dual, 5
Ω
Analog Switches
MAX4621/MAX4622/MAX4623
ELECTRICAL CHARACTERISTICS—Single Supply
(V+ = +12V, V- = 0, V
L
= +5V, GND = 0, V
INH
= +2.4V, V
INL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are
T
A
= +25°C.) (Note 2)
PARAMETER
ANALOG SWITCH
Input Voltage Range
(Note 3)
On-Resistance
On-Resistance Match
Between Channels
(Notes 3, 4)
On-Resistance Flatness
(Notes 3, 5)
NO_ or NC_ Off-Leakage
Current (Notes 6, 9)
COM_ Off-Leakage Current
(Notes 6, 9)
COM_ On-Leakage Current
(Notes 6, 9)
LOGIC INPUT
Input Current with Input
Voltage High
Input Current with Input
Voltage Low
Logic Input Voltage High
Logic Input Voltage Low
POWER SUPPLY
Power-Supply Range
Positive Supply Current
Logic Supply Current
Ground Current
I+
I
L
I
GND
V
IN_
= 0 or 5V
V
IN_
= 0 or 5V
V
IN_
= 0 or 5V
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
4.5
-0.5
-5
-0.5
-5
-0.5
-5
0.001
0.001
0.001
36.0
0.5
5
0.5
5
0.5
5
V
µA
µA
µA
I
INH
I
INL
V
INH
V
INL
V
IN_
= 2.4V
V
IN_
= 0.8V
-0.5
-0.5
2.4
0.8
0.001
0.001
0.5
0.5
µA
µA
V
V
V
COM_
,
V
NO_
,
V
NC_
R
ON
I
COM_
= 10mA,
V
NO_
or V
NC_
= 10V
T
A
= +25°C
T
A
= T
MIN
to T
MAX
0.2
GND
5.5
V+
8
10
0.5
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Ω
∆R
ON
I
COM_
= 10mA, V
NO_
or V
NC_
= 10V,
T
A
= +25°C
I
COM_
= 10mA; V
NO_
or V
NC_
= 3V, 6V, 9V;
T
A
= +25°C
T
A
= +25°C
V
COM_
= 1V, 10V;
V
NO_
or V
NC_
= 10V, 1V T
A
= T
MIN
to T
MAX
V
COM_
= 10V, 1V;
V
NO_
or V
NC_
= 1V, 10V
V
COM_
= 10V, 1V;
V
NO_
or V
NC_
= 10V,
1V, or floating
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
-0.5
-5
-0.5
-5
-1
-10
Ω
R
FLAT(ON)
I
NO_(OFF)
,
I
NC_(OFF)
I
COM_(OFF)
0.9
0.01
0.01
1.3
0.5
5
0.5
5
Ω
nA
nA
0.02
1
nA
10
I
COM_(ON)
4
_______________________________________________________________________________________
Dual, 5
Ω
Analog Switches
ELECTRICAL CHARACTERISTICS—Single Supply (continued)
(V+ = +12V, V- = 0, V
L
= +5V, GND = 0, V
INH
= +2.4V, V
INL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are
T
A
= +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
10
75
45
-62
-60
100
MIN
TYP
200
MAX
350
475
200
300
UNITS
SWITCH DYNAMIC CHARACTERISTICS
Turn-On Time (Note 3)
Turn-Off Time (Note 3)
Break-Before-Make Time
Delay (MAX4622 only)
(Note 3)
Charge Injection
Off-Isolation (Note 7)
Crosstalk (Note 8)
t
ON
t
OFF
V
COM_
= 10V, Figure 2
V
COM_
= 10V, Figure 2
ns
ns
MAX4621/MAX4622/MAX4623
t
D
Q
V
ISO
V
CT
R
L
= 100Ω, C
L
= 35pF, Figure 3, T
A
= +25°C
C
L
= 1.0nF, V
GEN
= 0, R
GEN
= 0, Figure 4
R
L
= 50Ω, f = 1MHz, Figure 5
R
L
= 50Ω, f = 1MHz, Figure 6
ns
pC
dB
dB
Note 2:
The algebraic convention, where the most negative value is a minimum and the most positive value is a maximum, is used
in this data sheet.
Note 3:
Guaranteed by design.
Note 4:
∆R
ON
= R
ON_MAX
- R
ON_MIN
.
Note 5:
Flatness is defined as the difference between the maximum and minimum values of on-resistance as measured over the
specified analog signal range.
Note 6:
Leakage currents are 100% tested at the maximum-rated hot temperature and guaranteed by correlation at +25°C.
Note 7:
Off-isolation = 20log
10
[V
COM_ /
(V
NC_
or V
NO_
)]. V
COM_
= output, V
NC_
or V
NO_
= input to off switch.
Note 8:
Between any two switches.
Note 9:
Leakage testing for single-supply operation is guaranteed by testing with dual supplies.
_______________________________________________________________________________________
5
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