For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
_______________General Description
The MAX323/MAX324/MAX325 are precision, dual,
SPST analog switches. They are single-supply devices
designed to operate from +2.7V to +16V. The MAX323
has two normally open (NO) switches, and the MAX324
has two normally closed (NC) switches. The MAX325
has one NO and one NC switch. Low power consump-
tion (5W) makes these parts ideal for battery-powered
equipment. These switches offer low leakage currents
(100pA max) and fast switching speeds (t
ON
= 150ns
max, t
OFF
= 100ns max).
When powered from a 5V supply, the MAX323 series
offers 2
max matching between channels, 60
max
on-resistance, and 6
max R
ON
flatness.
These switches also offer 5pC max charge injection,
and a minimum of 2000V ESD per Method 3015.7.
For equivalent devices specified for dual-supply opera-
tion, see the MAX320/MAX321/MAX322 data sheet. For
quad versions of the MAX320 series, see MAX391/
MAX392/MAX393 data sheet.
________________________Applications
Battery-Operated Systems Sample-and-Hold Circuits
Heads-Up Displays
Guidance and Control Systems
Audio and Video Switching Military Radios
Test Equipment
Communications Systems
+3V, +5V DACs and ADCs
PBX, PABX
____________________________Features
o
Low On-Resistance (R
ON
), 60
max (33
typ)
o
R
ON
Matching Between Channels <2
o
R
ON
Flatness <6
Max
o
Guaranteed Charge Injection <5pC
o
Single-Supply Operation (+2.7V to +16V)
o
Low Power Consumption, <5W
o
Low Leakage Current Over Temperature,
<2.5nA at +85C
o
Fast Switching: t
ON
<150ns, t
OFF
<100ns
o
Guaranteed Break-Before-Make (MAX325 only)
o
TTL/CMOS Logic Compatible
______________Ordering Information
MAX323/MAX324/MAX325
Precision, Single-Supply,
SPST Analog Switches
________________________________________________________________
Maxim Integrated Products
1
DIP/SO/
MAX
8
7
6
5
1
2
3
4
V+
IN1
COM2
NC2
V-
IN2
COM1
NC1
MAX324
DIP/SO/
MAX
8
7
6
5
1
2
3
4
V+
IN1
COM2
NC2
V-
IN2
COM1
NO1
MAX325
SWITCHES SHOWN FOR LOGIC "0" INPUT
MAX324
LOGIC
SWITCH
0
1
ON
OFF
TOP VIEW
DIP/SO/
MAX
MAX323
LOGIC
SWITCH
0
1
OFF
ON
MAX325
LOGIC
SWITCH 1
0
1
OFF
ON
SWITCH 2
ON
OFF
8
7
6
5
1
2
3
4
V+
IN1
COM2
NO2
V-
IN2
COM1
NO1
MAX323
_____________________Pin Configurations/Functional Diagrams/Truth Tables
19-0347; Rev 1; 10/97
Ordering Information continued at end of data sheet.
* Contact factory for dice specifications.
** Contact factory for availability.
8 CERDIP**
-55C to +125C
MAX323MJA
8 CERDIP**
-40C to +85C
MAX323EJA
8 SO
-40C to +85C
MAX323ESA
8 Plastic DIP
-40C to +85C
MAX323EPA
Dice*
0C to +70C
MAX323C/D
8 MAX
0C to +70C
MAX323CUA
8 Plastic DIP
0C to +70C
MAX323
CPA
PIN-PACKAGE
TEMP. RANGE
PART
8 SO
0C to +70C
MAX323CSA
MAX323/MAX324/MAX325
Precision, Single-Supply,
SPST Analog Switches
2
_______________________________________________________________________________________
Voltage Referenced to GND
V+ .........................................................................-0.3V to +17V
IN_, COM_, NC_, NO_ (Note 1)..................-0.3V to (V+ + 0.3V)
Continuous Current (any terminal) ......................................30mA
Peak Current, COM_, NO_, NC_
(pulsed at 1ms, 10% duty cycle max) ............................100mA
ESD per Method 3015.7 ..................................................>2000V
Continuous Power Dissipation
Plastic DIP (derate 9.09mW/C above +70C) ..............727mW
Narrow SO (derate 5.88mW/C above +70C) ..............471mW
CERDIP (derate 8.00mW/C above +70C) ...................640mW
MAX (derate 4.10mW/C above +70C) ......................330mW
Operating Temperature Ranges
MAX32_C_ _ .........................................................0C to +70C
MAX32_E_ _.......................................................-40C to +85C
MAX32_MJA ....................................................-55C to +125C
Storage Temperature Range .............................-65C to +150C
Lead Temperature (soldering, 10sec) .............................+300C
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.
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS--Single +5V Supply
(V+ = 5V 10%, GND = 0V, V
INH
= 2.4V, V
INL
= 0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER
SYMBOL
MIN
TYP
MAX
(Note 2)
UNITS
Analog Signal Range
V
COM,
V
NO,
V
NC
0
V+
V
CONDITIONS
(Note 3)
On-Resistance
R
ON
33
60
V+ = 4.5V,
I
COM
= 1.0mA,
V
NO
or V
NC
= 3.5V
T
A
= +25C
T
A
= +25C
T
A
= +25C
T
A
= +25C
T
A
= +25C
T
A
= +25C
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
-40
40
On-Resistance Match
Between Channels (Note 4)
R
ON
0.8
2
V+ = 5V,
I
COM
= 1.0mA,
V
NO
or V
NC
= 3V
On-Resistance Flatness
(Notes 3, 5)
R
FLAT(ON)
2
6
V+ = 5V,
I
COM
= 1.0mA,
V
NO
or V
NC
= 1V, 2V, 3V
NO or NC Off Leakage
Current (Note 6)
I
NO(OFF)
or
I
NC(OFF)
-0.1
0.01
0.1
nA
V+ = 5.5V,
V
COM
= 1V,
V
NO
or V
NC
= 4.5V
COM Off Leakage Current
(Note 6)
I
COM(OFF)
-0.1
0.1
nA
V+ = 5.5V,
V
COM
= 4.5V,
V
NO
or V
NC
= 1V
COM On Leakage Current
(Note 6)
I
COM(ON)
-0.2
0.2
nA
V+ = 5.5V,
V
COM
= 5V, or
V
NO
or V
NC
= 5V
-5
5
-50
50
75
4
8
-5
5
-40
40
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
C, E
M
C, E
M
C, E
M
-10
10
ANALOG SWITCH
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.
MAX323/MAX324/MAX325
Precision, Single-Supply,
SPST Analog Switches
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS--Single +5V Supply (continued)
(V+ = 5V 10%, GND = 0V, V
INH
= 2.4V, V
INL
= 0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER
SYMBOL
MIN
TYP
MAX
(Note 2)
UNITS
CONDITIONS
Turn-On Time
t
ON
85
150
ns
V
NO
or V
NC
= 3V
Break-Before-Make Time
Delay (Note 3)
t
D
2
ns
MAX325 only, R
L
= 300
, C
L
= 35pF
Turn-Off Time
t
OFF
25
100
ns
V
NO
or V
NC
= 3V
Power-Supply Range
2.7
16
V
Charge Injection
(Note 3)
Q
1
5
pC
C
L
= 1.0nF, V
GEN
= 0V,
R
GEN
= 0V, Figure 4
T
A
= +25C
T
A
= +25C
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
240
150
T
A
= +25C
Off Isolation (Note 7)
OIRR
72
dB
R
L
= 50
, C
L
= 5pF,
f = 1MHz, Figure 5
T
A
= +25C
Crosstalk (Note 8)
85
dB
R
L
= 50
, C
L
= 5pF,
f = 1MHz, Figure 6
T
A
= +25C
NC or NO Capacitance
C
OFF
9
pF
f = 1MHz, Figure 7
T
A
= +25C
COM Off Capacitance
C
COM(OFF)
9
pF
f = 1MHz, Figure 7
T
A
= +25C
COM On Capacitance
C
COM(ON)
22
pF
f = 1MHz, Figure 8
T
A
= +25C
Input Voltage High
V
INH
2.4
V
Input Voltage Low
V
INL
0.8
V
Positive Supply Current
I+
-1
0.0001
1
A
V+ = 5.5V, V
IN
= 0V or V+, all channels on or off
DYNAMIC
SUPPLY
LOGIC INPUT
MAX323/MAX324/MAX325
Precision, Single-Supply,
SPST Analog Switches
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS--Single +3.3V Supply
(V+ = 3.0V to 3.6V, GND = 0V, V
INH
= 2.4V, V
INL
= 0.6V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
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
ON
=
R
ON
max -
R
ON
min.
Note 5:
Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the
specified analog signal range.
Note 6:
Leakage parameters are 100% tested at maximum rated hot temperature and guaranteed by correlation at +25C.
Note 7:
Off Isolation = 20 log
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.
PARAMETER
SYMBOL
MIN
TYP
MAX
(Note 2)
UNITS
Analog Signal Range
V
COM,
V
NO,
V
NC
0
V+
V
CONDITIONS
(Note 3)
Channel On-Resistance
R
ON
83
175
V+ = 3V,
I
COM
= 1.0mA,
V
NO
or V
NC
= 1.5V
Turn-On Time (Note 3)
t
ON
160
400
ns
V
NO
or V
NC
= 1.5V
Break-Before-Make Time
Delay (Note 3)
t
D
2
5
ns
MAX325 only,
R
L
= 300
, C
L
= 35pF
Turn-Off Time (Note 3)
t
OFF
40
125
ns
V
NO
or V
NC
= 1.5V
Positive Supply Current
I+
-1
1
A
Charge Injection (Note 3)
Q
1
5
pC
C
L
= 1.0nF,
V
GEN
= 0V, R
GEN
= 0V
V+ = 3.6V, V
IN
= 0V or V+, all channels on or off
T
A
= +25C
T
A
= +25C
T
A
= +25C
T
A
= +25C
T
A
= +25C
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
275
500
175
ANALOG SWITCH
DYNAMIC
SUPPLY
MAX323/MAX324/MAX325
Precision, Single-Supply,
SPST Analog Switches
_______________________________________________________________________________________
5
__________________________________________Typical Operating Characteristics
(T
A
= +25C, unless otherwise noted.)
0
0
2
8
10
R
ON
vs. V
COM
60
70
MAX323-01
V
COM
(V)
R
ON
(
)
4
6
12
40
10
50
20
30
80
A: V+ = 3V
B: V+ = 5V
C: V+ = 12V
A
B
C
0
0
1
4
R
ON
vs. V
COM
OVER TEMPERATURE
50
MAX323-02
V
COM
(V)
R
ON
(
)
2
3
5
30
10
40
20
60
V+ = 5V
A: T
A
= -55C
B: T
A
= +25C
C: T
A
= +85C
D: T
A
= +125C
D
C
B
A
0
0
2
R
ON
vs. V
COM
OVER TEMPERATURE
MAX323-03
V
COM
(V)
R
ON
(
)
3
4
0.6
0.2
0.8
0.4
1
5
1
A: T
A
= -55C
B: T
A
= +25C
C: T
A
= +85C
D: T
A
= +125C
D
B
C
A
0.0001
ON LEAKAGE CURRENT vs. TEMPERATURE
10
MAX323-04
TEMPERATURE (C)
ON LEAKAGE (nA)
0.1
0.001
1
0.01
100
-55
65
85
-15
5
25
45
-35
105 125
0
SUPPLY CURRENT vs. TEMPERATURE
7
8
9
MAX323-07
TEMPERATURE (C)
I+ (nA)
5
1
2
6
3
4
10
-55
65
85
-15
5
25
45
-35
105 125
V+ = 5V
IN1, IN2 = GND OR V+
0.0001
OFF LEAKAGE CURRENT vs. TEMPERATURE
10
MAX323-05
TEMPERATURE (C)
OFF LEAKAGE (nA)
0.1
0.001
1
0.01
100
-55
65
85
-15
5
25
45
-35
105 125
V+ = 5.5V
V
COM
= 1V
V
NC
OR V
NO
= 1V
-3
0
CHARGE INJECTION vs. V
COM
2
MAX323-06
V
COM
(V)
Q (pC)
2
5
0
-2
1
-1
3
V+ = 5V
1
3
4
PDF 
ZIP