MAX333.PDF

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316749494 UNPDF
19-0189; Rev 0; 9/93
Precision, Quad, SPDT, CMOS Analog Switch
_______________General Description
The MAX333A is a precision, quad, single-pole double-
throw (SPDT) analog switch. The four independent
switches operate with bipolar supplies ranging from
±4.5V to ±20V, or with a single-ended supply between
+10V and +30V. The MAX333A offers low on resistance
(less than 35
____________________________Features
©
Upgraded Replacement for a DG211/DG212 Pair
or Two DG403s
©
Low On Resistance < 17
½
Typical (35
½
Max)
©
Guaranteed Matched On Resistance Between
Channels < 2
½
between
channels and to remain flat over the analog signal range
(
½
), guaranteed to match within 2
½
©
Guaranteed Flat On Resistance over Analog
Signal Range Æ 3 ½
Max
max). It also offers break-before-make switching
(10ns typical), with turn-off times less than 145ns and
turn-on times less than 175ns. The MAX333A is ideal for
portable operation since quiescent current runs less
than 50µA with all inputs high or low.
This monolithic, quad switch is fabricated with Maxim’s
new improved silicon-gate process. Design improvements
guarantee extremely low charge injection (10pC), low
power consumption (3.75mW), and electrostatic discharge
(ESD) greater than 2000V.
Logic inputs are TTL and CMOS compatible and guaranteed
over a +0.8V to +2.4V range—regardless of supply voltage.
Logic inputs and switched analog signals can range any-
where between the supply voltages without damage.
________________________Applications
Test Equipment
Communications Systems
PBX, PABX
Heads-Up Displays
Portable Instruments
½
©
Guaranteed Charge Injection < 10pC
©
Guaranteed Off-Channel Leakage < 6nA at +85°C
©
ESD Guaranteed > 2000V per Method 3015.7
©
Single-Supply Operation (+10V to +30V)
Bipolar-Supply Operation (±4.5V to ±20V)
©
TTL-/CMOS-Logic Compatibility
©
Rail-to-Rail Analog Signal Handling Capability
______________Ordering Information
PART
TEMP. RANGE
PIN-PACKAGE
MAX333ACPP
0°C to +70°C
20 Plastic DIP
MAX333ACWP
0°C to +70°C
20 Wide SO
MAX333AC/D
0°C to +70°C
Dice*
MAX333AEPP
-40°C to +85°C
20 Plastic DIP
MAX333AEWP
-40°C to +85°C
20 Wide SO
MAX333AMJP
-55°C to +125°C
20 CERDIP
* Contact factory for dice specifications.
__________Typical Operating Circuit
INPUTS
OUTPUTS
__________________Pin Configuration
V 1
V 1 - V 2
TOP VIEW
IN1
1
2
20
IN4
V 2
NO1
19
18
NO4
COM4
COM1
3
OSC
IN
NC1
4
5
17
16
NC4
V-
V+
N.C.
GND
6
7
MAX333A
15
14
NC2
NC3
COM2
8
13
12
COM3
V 3
V 3 - V 4
NO2
9
10
NO3
IN2
11
IN3
V 4
DIP/SO
FLYING CAPACITOR
LEVEL TRANSLATOR
(2-CHANNEL)
SWITCHES ARE SHOWN WITH LOGIC "0" INPUT
N.C. = NOT INTERNALLY CONNECTED
________________________________________________________________ Maxim Integrated Products 1
Call toll free 1-800-998-8800 for free samples or literature.
Æ
3
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Precision, Quad, SPDT, CMOS Analog Switch
ABSOLUTE MAXIMUM RATINGS
V+ to V- ..................................................................................44V
V IN , V COM , V NO , V NC ......................................................V- to V+
(V NO - V NC ) ............................................................................32V
V+ to Ground..........................................................................30V
V- to Ground..........................................................................-30V
Current, Any Terminal Except V COM , V NO , or V NC .............30mA
Continuous Current, V COM , V NO , or V NC ............................20mA
Peak Current, V COM , V NO , or V NC
(Pulsed at 1ms, 10% duty cycle max) ............................70mA
ESD ....................................................................................2000V
Continuous Power Dissipation (T A = +70°C) (Note 1)
Plastic DIP (derate above +70°C by 11.11mW/°C) .....889mW
SO (derate above +70°C by 10.00mW/°C) ..................800mW
CERDIP (derate above +70°C by 11.11mW/°C) ..........889mW
Operating Temperature Ranges:
MAX333AC_ _ .....................................................0°C to +70°C
MAX333AE_ _ ..................................................-40°C to +85°C
MAX333AMJP ................................................-55°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
Note 1: Device mounted with all leads soldered to PC board.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and function-
al 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
(GND = 0V, V+ = +15V, V- = -15V, T A = +25°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
(Notes 2, 3)
POWER REQUIREMENTS
Positive Supply Current
I+
V IN = 0V/5V,V+ = 16.5V, V- = -16.5V
Dual supply,
0.05
0.25
mA
Supply Voltage Range
V+/V-
÷
V+
÷
=
÷
V-
÷
±4.5V
±20
V
V+
Single supply, V- = GND
10
30
Negative Supply Current
I-
V IN = 0V/5V,V+ = 16.5V, V- = -16.5V
0.01
1
m
A
LOGIC INPUT
Input Voltage Low
V IL
V-
0.8
V
Input Voltage High
V IH
2.4
V+
V
Input Current
I IN
V IN = V-, V+
-1.0
0.0001
1.0
µA
SWITCH
Analog Signal Range
V COM, V NO, V NC
V-
V+
V
On Circuit Resistance
R ON
V COM = +10V, I (NC or NO) = 1mA;
V COM = -10V, I (NC or NO) = 1mA
M
20
35
½
C, E
45
On Resistance Match
Between Channels (Note 4)
I (NC or NO) = -10mA, V D = 10V
or -10V, V+ =15V, V- = -15V
T A = +25°C
2
R ON
T A = T MIN to T MAX
4
½
On Resistance Flatness
(Note 4)
R ON
I (NC or NO) = -10mA, V D = 5V
or -5V, V+ =15V, V- = -15V
T A = +25°C
3
½
T A = T MIN to T MAX
5
On Circuit Leakage
Current
I COM
V COM = ±15.5V, V NC or V NO = + 15.5V,
V+ = 16.5V, V- = -16.5V
V COM = ±15.5V V NC or V NO = + 15.5V,
V+ = 16.5V, V- = -16.5V
M
-0.75
0.75
nA
C, E
-1.00
0.20
1.00
Off Circuit Leakage
Current
I NC or
I NO
M
-0.25
0.01
0.25
nA
C, E
-0.50
0.02
0.05
DYNAMIC
Turn-Off Time
t OFF
Figure 1
145
ns
Turn-On Time
t ON
175
ns
Break-Before-Make Time
t OPEN
10
ns
Off Capacitance
C OFF
5
pF
On Capacitance
C ON
5
pF
Charge Injection
Q
, Figure 6
f = 1MHz, RL = 75 ½ ,
V COM = 2.3V RMS
½
T A = +25°C
2
10
pC
Off Isolation
Crosstalk
OIRR
72
dB
CCRR
78
dB
2 _______________________________________________________________________________________
C L = 10nF, V GEN = 0V,
R GEN = 0
316749494.003.png
Precision, Quad, SPDT, CMOS Analog Switch
ELECTRICAL CHARACTERISTICS–DUAL SUPPLIES (continued)
(GND = 0V, V+ = +15V, V- = -15V, T A = T MIN to T MAX , unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
(Notes 2, 3)
LOGIC INPUT
Input Voltage Low
V IL
V-
0.8
V
Input Voltage High
V IH
2.4
V+
V
Input Current
I IN
V IN = V-, V+
-1.0
0.0001
1.0
µA
SWITCH
Analog Signal Range
V COM
V-
V+
V
On Circuit Resistance
R ON
V COM = 10V, I (NC or NO) = 1mA;
V COM = -10V, I (NC or NO = 1mA
V COM = ±15V, V NC or V NO = -15V,
V+ = 16.5V, V- = -16.5V
V COM = ±15V, V NC or V NO = -15V,
V+ = 16.5V, V- = -16.5V
C, E
45
½
M
45
On Circuit Leakage Current
I COM
C, E
-10
10
nA
M
-60
60
C, E
-6
6
On Circuit Leakage Current I NC or I NO
nA
M
ELECTRICAL CHARACTERISTICS—Single Supply
(GND = 0V, V+ = +12V, V- = 0V, T A = +25°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
(Notes 2, 3)
SUPPLY
Supply Voltage Range
V +
Single supply, V- = GND
10
30
V
Positive Supply Current
l+
0.25
mA
INPUT
Input Voltage Low
V INLO
0
0.8
V
Input Voltage High
V INHI
2.4
V+
V
Input Current
I IN
V IN = V+, 0V
1
µA
SWITCH
Analog Signal Range
V COM ,
V NO , V NC
V-
V+
V
On Circuit Resistance
r ON
V COM = 10V, I( NC or NO) = 1mA,
V COM = 1V, I( NC or NO) = 1mA
V COM = 11V, V NC or V NO = 0V
V COM = 1V, V NC or V NO = V+
35
75
½
On Circuit Leakage Current
I COM
0.75
nA
Off Circuit Leakage Current
I NC or
I NO
V COM = 11V
V NC or V NO = 1V
0.25
nA
DYNAMIC
Turn-Off Time
t OFF
Figure 1
45
ns
Turn-On Time
t ON
90
ns
Break-Before-Make Time
t OPEN
5
10
ns
Off Isolation
OIRR
f = 1MHz, R L = 75
½
, V COM = 2.3V RMS
70
dB
Crosstalk
CCRR
72
dB
Note 2: The algebraic convention, whereby the most negative value is a minimum and the most positive is a maximum, is used in
this data sheet.
Note 3: Typical values are for design aid only, not guaranteed or subject to production testing.
Note 4: On resistance match between channels and flatness are guaranteed only with bipolar-supply operation.
_______________________________________________________________________________________ 3
316749494.004.png
Precision, Quad, SPDT, CMOS Analog Switch
__________________________________________Typical Operating Characteristics
(T A = +25°C, unless otherwise noted).
50
ON RESISTANCE
vs. V COM AND POWER SUPPLY VOLTAGE
ON RESISTANCE
vs. V COM AND TEMPERATURE
ON RESISTANCE
vs. V COM AND TEMPERATURE
35
140
A: V+ = 5V,
V- = -5V
B: V+ = 10V,
V- = -10V
C: V+ = 15V,
V- = -15V
D: V+ = 20V,
V- = -20V
45
V+ = 15V
V- = -15V
V- = 0V
40
A
30
T A = +125°C
120
35
25
100
30
+85°C
V+ = 5V
20
80
25
+25°C
B
C
20
15
60
-55°C
D
15
V+ = 10V
10
10
40
V+ = 15V
V+ = 20V
5
5
20
-20
-10
0
10
20
-20
-10
0
10
20
0
5
10
15
20
V COM (V)
V COM (V)
V COM (V)
OFF LEAKAGE CURRENTS
vs. TEMPERATURE
ON RESISTANCE
vs. V COM AND SINGLE SUPPLY
ON LEAKAGE CURRENTS
vs. TEMPERATURE
70
100
100
V+ = 12V
V- = 0V
V+ = 16.5V
V- = -16.5V
V COM = ±15V
V NC OR V NO = ±15V
V+ = 16.5V
V- = -16.5V
V COM = ±15V
V NC OR V NO = ±15V
60
10
10
T A = +125°C
50
1
1
T A = +85°C
40
0.1
0.1
30
T A = +25°C
0.01
0.01
20
0.001
0.001
10
0.0001
0.0001
0
5
10
15
20
-55
+25
+125
-55
+25
+125
V COM (V)
TEMPERATURE (°C)
SUPPLY CURRENT vs. TEMPERATURE
TEMPERATURE (°C)
CHARGE INJECTION vs. V COM
75
100
V SUPPLY = +15V
I+ AT V+ = +16.5V
50
10
25
1
0
0.1
-25
0.01
-50
0.001
I- AT V+ = +16.5V
-75
0.0001
-20
-15 -10 -5
0
5
10 15
20
-55
+25
+125
V COM (V)
TEMPERATURE (°C)
4 _______________________________________________________________________________________
316749494.005.png 316749494.006.png
Precision, Quad, SPDT, CMOS Analog Switch
_____________________Pin Description
Overvoltage Protection
Proper power-supply sequencing is recommended for
all CMOS devices. It is important not to exceed the
absolute maximum ratings because stresses beyond
the listed ratings may cause permanent damage to the
devices. Always sequence V+ on first, followed by VL,
V-, and logic inputs. If power-supply sequencing is not
possible, add two small signal diodes in series with the
supply pins (Figure 1). Adding the diodes reduces the
analog signal range to 1V below V+ and 1V below V-,
but low switch resistance and low leakage characteris-
tics are unaffected.
PIN
NAME
FUNCTION
1, 10, 11, 20
IN1-IN4
NO1-NO4
COM1-COM4
Logic-Level Inputs
2, 9, 12, 19
Normally Open Switches
3, 8, 13, 18
Common Switch Poles
4, 7, 14, 17
NC1-NC4
Normally Closed Switches
5
V-
Negative Power Supply
6
GND
Ground
15
N.C.
Not Internally Connected
16
V+
Positive Power Supply
__________Applications Information
Operation with Supply Voltages
Other than ±15V o
The main limitation of supply voltages other than ±15V is
a reduction in the analog signal range. The MAX333A
operates with ±5V to ±20V bipolar supplies. The
Typical Operating Characteristicsand graphs show typ-
ical on resistance for ±15V, ±10V, ±5 supplies.
Switching times increase by a factor of two or more for
±5V operation. The MAX333A can operate from +10V
to +24V unipolar supplies. It can be powered from a
single +10V to +24V supply, as well as from unbalanced
supplies such as +24V and -5V. Connect V- to 0V when
operating with a single supply.
V+
COM_
NO_
( OR NC_)
V g
V-
Figure 1. Overvoltage Protection Using Blocking Diodes
______________________________________________Test Circuits/Timing Diagrams
3V
t R < 20ns
t F < 20ns
50%
V IN
50%
0V
NC_
+10V
SWITCH OUTPUT
t ON
COM_
t OFF
-10V
NO_
300
W
t OPEN
50%
IN_
+10V
V COM
50%
V+
GND
V-
0V
LOGIC
INPUT
-10V
50%
50%
t OFF
+15V
-15V
t ON
t OPEN
(REPEAT TEST FOR IN2, IN3, AND IN4.)
Figure 2. Switching-Time Test Circuit
_______________________________________________________________________________________ 5
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