19-1325; Rev 0; 1/98
Low-Voltage, Phase-Reversal
Analog Switch
________________General Description
The MAX4528 low-voltage, CMOS analog IC is config-
ured as a phase-reversal switch and optimized for high-
speed applications such as chopper amplifiers. It
operates from a +2.7V to +12V single supply or from
±2.7V to ±6V dual supplies.
On-resistance (110Ω max) is matched between switch-
es to 7Ω (max). Each switch can handle Rail-to-Rail
®
analog signals. The leakage current is only 0.5nA at
+25°C and 20nA at +85°C. All digital inputs have 0.8V
to 2.4V logic thresholds, ensuring both TTL- and
CMOS-logic compatibility.
For higher voltage operation, see the MAX4526/
MAX4527 data sheet.
____________________________Features
o
5pC (max) Charge Injection
o
110Ω Signal Paths with ±5V Supplies
o
Rail-to-Rail Signal Handling
o
Transition Time <100ns with ±5V Supplies
o
1.0µA (max) Current Consumption
o
>2kV ESD Protection per Method 3015.7
o
TTL/CMOS-Compatible Input
o
Small Packages: 8-Pin SO, DIP, and µMAX
MAX4528
________________________Applications
Chopper-Stabilized Amplifiers
Balanced Modulators/Demodulators
Data Acquisition
Test Equipment
Audio-Signal Routing
_______________Ordering Information
PART
MAX4528CPA
MAX4528CSA
MAX4528CUA
MAX4528C/D
MAX4528EPA
MAX4528ESA
MAX4528EUA
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 Plastic DIP
8 SO
8 µMAX
Dice*
8 Plastic DIP
8 SO
8 µMAX
*Contact
factory for availability.
_________________________Pin Configuration/Functional Diagram/Truth Table
TOP VIEW
MAX4528
A
1
B
2
GND
3
IN
4
8
7
6
5
V+
X
Y
V-
TRUTH TABLE
IN
A
B
O
Y
X
1
X
Y
DIP/SO/µMAX
SWITCH POSITIONS SHOWN WITH IN = LOW
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.
________________________________________________________________
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 408-737-7600 ext. 3468.
Low-Voltage, Phase-Reversal
Analog Switch
MAX4528
ABSOLUTE MAXIMUM RATINGS
(Voltages Referenced to GND)
V+ .............................................................................-0.3V to 13V
V-...............................................................................-13V to 0.3V
V+ to V- .....................................................................-0.3V to 13V
All Other Pins (Note 1) ..........................(V- - 0.3V) to (V+ + 0.3V)
Continuous Current into Any Terminal..............................±20mA
Peak Current into Any Terminal
(pulsed at 1ms, 10% duty cycle)...................................±50mA
ESD per Method 3015.7 ..................................................>2000V
Continuous Power Dissipation (T
A
= +70°C) (Note 2)
Plastic DIP (derate 9.09mW/°C above +70°C) ............727mW
SO (derate 5.88mW/°C above +70°C) .........................471mW
µMAX (derate 4.10mW/°C above +70°C) ....................330mW
Operating Temperature Ranges
MAX4528C_ _ .....................................................0°C to +70°C
MAX4528E_ _ ..................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
Note 1:
Signals on IN, A, B, X, or Y exceeding V+ or V- are clamped by internal diodes. Limit forward-diode current to maximum
current rating.
Note 2:
All leads are soldered or welded to PC boards.
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: ±5V Dual Supplies
(V+ = 5V, V- = -5V, 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.)
PARAMETER
ANALOG SWITCH
Analog-Signal Range
A-X, A-Y, B-X, B-Y
On-Resistance
A-X, A-Y, B-X, B-Y
On-Resistance Match (Note 5)
A-X, A-Y, B-X, B-Y
On-Resistance Flatness (Note 6)
A-B, X-Y Leakage Current
(Note 7)
LOGIC INPUT
IN Input Logic Threshold High
IN Input Logic Threshold Low
IN Input Current Logic High
or Low
V
INH
V
INL
I
INH
,
I
INL
V
IN_
= 0.8V or 2.4V
C, E
C, E
C, E
0.8
-1
1.6
1.6
0.03
1
2.4
V
V
µA
V
A
, V
B
,
V
X
, V
Y
R
ON
∆R
ON
R
FLAT(ON)
I
A
, I
B
,
I
X
, I
Y
(Note 4)
V
A
= V
B
= ±3V, I
A
= I
B
= 1mA
V
A
= V
B
= ±3V, I
A
= I
B
= 1mA
V
A
= V
B
= 3V, 0V, -3V;
I
A
= I
B
= 1mA
V+ = 5.5V; V- = -5.5V; V
IN
= 0V, 3V;
–
V
A
= ±4.5V; V
B
= +4.5V
C, E
+25°C
C, E
+25°C
C, E
+25°C
C, E
+25°C
C, E
-0.5
-20
0.01
9
3
V-
70
V+
110
130
7
9
15
17
0.5
20
V
Ω
Ω
Ω
nA
SYMBOL
CONDITIONS
T
A
MIN
TYP
(Note 3)
MAX
UNITS
SWITCH DYNAMIC CHARACTERISTICS
Transition Time
Break-Before-Make Time Delay
Charge Injection (Note 4)
A-X, A-Y, B-X, B-Y Capacitance
A-X, A-Y, B-X, B-Y Isolation
(Note 8)
t
TRANS
t
BBM
Q
C
ON
V
ISO
V
A
= V
B
= ±3V, V+ = 5V, V- = -5V,
R
L
= 300Ω, Figure 3
V
A
= V
B
= ±3V, V+ = 5V, V- = -5V,
R
L
= 300Ω, Figure 4
C
L
= 1.0nF, V
A
or V
B
= 0V, Figure 5
V
A
= V
B
= GND, f = 1MHz, Figure 6
R
L
= 50Ω, C
L
= 15pF, f = 1MHz,
V
A
= V
B
= 1V
RMS
, Figure 7
+25°C
C, E
+25°C
C, E
+25°C
+25°C
+25°C
1
13
-68
5
1
20
70
100
125
ns
ns
pC
pF
dB
2
_______________________________________________________________________________________
Low-Voltage, Phase-Reversal
Analog Switch
ELECTRICAL CHARACTERISTICS: ±5V Dual Supplies (continued)
(V+ = 5V, V- = -5V, 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.)
PARAMETER
POWER SUPPLY
Power-Supply Range
V+ Supply Current
V- Supply Current
V+, V-
I+
I-
V
IN
= 0V or V+
V
IN
= 0V or V+
C, E
+25°C
C, E
+25°C
C, E
±2.7
-1
-10
-1
-10
±6
1
10
1
10
V
µA
µA
SYMBOL
CONDITIONS
T
A
MIN
TYP
(Note 3)
MAX
UNITS
MAX4528
ELECTRICAL CHARACTERISTICS: +5V Single Supply
(V+ = 5V, V- = 0V, 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.)
PARAMETER
ANALOG SWITCH
Analog-Signal Range
A-X, A-Y, B-X, B-Y
On-Resistance
A-X, A-Y, B-X, B-Y
On-Resistance Match (Note 5)
A-B, X-Y Leakage Current
(Note 9)
LOGIC INPUT
IN Input Logic Threshold High
IN Input Logic Threshold Low
IN Input Current Logic High
or Low
V
INH
V
INL
I
INH
,
I
INL
V
IN_
= 0.8V or 2.4V
C, E
C, E
C, E
0.8
-1
1.6
1.6
0.03
1
2.4
V
V
µA
V
A
, V
B
,
V
X
, V
Y
R
ON
∆R
ON
I
A
, I
B
,
I
X
, I
Y
(Note 4)
V
A
= V
B
= 3V, I
A
= I
B
= 1mA
V
A
= V
B
= 3V, I
A
= I
B
= 1mA
V+ = 5.5V; V
IN
= 0V, 3V;
V
A
= 4.5V, 1V; V
B
= 1V, 4.5V
C, E
+25°C
C, E
+25°C
C, E
+25°C
C, E
-0.5
-20
0.01
5
V-
120
V+
175
200
10
12
0.5
20
V
Ω
Ω
nA
SYMBOL
CONDITIONS
T
A
MIN
TYP
(Note 3)
MAX
UNITS
SWITCH DYNAMIC CHARACTERISTICS
(Note 4)
Transition Time
Break-Before-Make Time Delay
Charge Injection
A-X, A-Y, B-X, B-Y Capacitance
A-X, A-Y, B-X, B-Y Isolation
(Note 8)
POWER SUPPLY
Power-Supply Range
V+ Supply Current
V+
I+
V
IN
= 0V or V+
C, E
+25°C
C, E
2.7
-1
-10
12
1
10
V
µA
t
TRANS
t
BBM
Q
C
OFF
V
ISO
V
A
= V
B
= 3V, V+ = 5V, R
L
= 300Ω,
Figure 3
V
A
= V
B
= 3V, V+ = 5V, R
L
= 300Ω,
Figure 4
C
L
= 1.0nF, V
A
or V
B
= 0V, Figure 5
V
A
= V
B
= GND, f = 1MHz, Figure 6
R
L
= 50Ω, C
L
= 15pF, f = 1MHz,
V
A
= V
B
= 1V
RMS
, Figure 7
+25°C
C, E
+25°C
C, E
+25°C
+25°C
+25°C
1.5
17
-70
5
1
20
110
175
200
ns
ns
pC
pF
dB
_______________________________________________________________________________________
3
Low-Voltage, Phase-Reversal
Analog Switch
MAX4528
ELECTRICAL CHARACTERISTICS: +3V Single Supply
(V+ = 2.7V to 3.6V, V- = 0V, V
INH
= 2.4V, V
INL
= 0.6V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at
T
A
= +25°C.)
PARAMETER
ANALOG SWITCH
Analog-Signal Range
A-X, A-Y, B-X, B-Y
On-Resistance
LOGIC INPUT
IN Input Logic Threshold High
IN Input Logic Threshold Low
IN Input Current Logic High
or Low
V
INH
V
INL
I
INH
,
I
INL
V+ = 3V
V+ = 3V
V
IN_
= 0V or V+
C, E
C, E
C, E
0.6
-1
0.9
0.9
0.03
1
2.4
V
V
µA
V
A
, V
B
,
V
X
, V
Y
R
ON
(Note 4)
V+ = 3V, V
A
= V
B
= 1.5V,
I
A
= I
B
= 0.1mA
C, E
+25°C
C, E
V-
250
V+
900
1000
V
Ω
SYMBOL
CONDITIONS
T
A
MIN
TYP
(Note 3)
MAX
UNITS
SWITCH DYNAMIC CHARACTERISTICS
(Note 4)
Transition Time
Break-Before-Make Time Delay
Charge Injection
POWER SUPPLY
Power-Supply Range
V+ Supply Current
V+, V-
I+
V
IN
= 0V or V+
C, E
+25°C
C, E
2.7
-1
-10
12
1
10
V
µA
t
TRANS
t
BBM
Q
V
A
= 1.5V, V
B
= 0V, V+ = 3V,
V- = 0V, R
L
= 1kΩ, Figure 3
V
A
= 1.5V, V
B
= 0V, V+ = 3V,
V- = 0V, R
L
= 1kΩ, Figure 4
C
L
= 1.0nF, V
A
or V
B
= 0V, Figure 5
+25°C
C, E
+25°C
C, E
+25°C
1
5
2
150
150
400
500
ns
ns
pC
The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.
Guaranteed by design.
∆R
ON
=
∆R
ON(MAX)
-
∆R
ON(MIN)
.
Resistance flatness is defined as the difference between the maximum and the minimum value of on-resistance as measured
over the specified analog-signal range.
Note 7:
Leakage parameters are 100% tested at maximum rated hot temperature and guaranteed by correlation at +25°C.
Note 8:
Off isolation = 20log
10
[(V
X
or V
Y
) / (V
A
or V
B
)], V
A
or V
B
= output, V
A
or V
B
= input to off switch.
Note 9:
Leakage testing for single-supply operation guaranteed by testing with dual supplies.
Note 3:
Note 4:
Note 5:
Note 6:
4
_______________________________________________________________________________________
Low-Voltage, Phase-Reversal
Analog Switch
__________________________________________Typical Operating Characteristics
(V+ = 5V, V- = -5V, GND = 0V, T
A
= +25°C, unless otherwise noted.)
ON-RESISTANCE vs. V
A
, V
B
(DUAL SUPPLIES)
MAX4528-01
MAX4528
ON-RESISTANCE vs.
V
A
, V
B
, AND TEMPERATURE
(DUAL SUPPLIES)
MAX4528-02
ON-RESISTANCE vs. V
A
, V
B
(SINGLE SUPPLY)
V+ = 2V
V+ = 2.7V
V+ = 3.3V
V+ = 5V
100
V+ = 7.5V
V- = 0V
MAX4528-03
1000
V+ = 2.7V
V- = -2.7V
R
ON
(Ω)
V+ = 1.2V
V- = -1.2V
V+ = 2V
V- = -2V
100
V+ = 3.3V
V- = -3.3V
V+ = 5V
V- = -5V
140
120
100
R
ON
(Ω)
80
60
40
20
T
A
= -40°C
T
A
= +25°C
T
A
= -55°C
T
A
= +125°C
T
A
= +85°C
1000
T
A
= +70°C
R
ON
(Ω)
V+ = 10V
10
-5 -4
-3 -2
-1
0
1
2
3
4
5
V
A
, V
B
(V)
0
-5
-4
-3
-2
-1
0
1
2
3
4
5
V
A
, V
B
(V)
10
0
1
2
3
4
5
6
7
8
9
10
V
A,
V
B
(V)
ON-RESISTANCE vs.
V
A
, V
B
, AND TEMPERATURE
(SINGLE SUPPLY)
MAX4528-04
LEAKAGE vs. TEMPERATURE
MAX4528-05
CHARGE INJECTION, CHARGE-
INJECTION MATCHING vs. V
A,
V
B
5
0
Q (pC)
-5
-10
-15
-20
-25
V+ = 5V
V- = 5V
-5
-4 -3
-2
-1
0
1
Q
X
Q
Y
∆Q
MATCHING
MAX4528-06
200
180
160
140
R
ON
(Ω)
120
100
80
60
40
20
0
0
T
A
= +125°C
10,000
1000
100
LEAKAGE (pA)
10
1
0.1
0.01
0.001
10
T
A
= +70°C
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
V+ = 5V
V- = 0V
1
2
3
4
5
T
A
= -55°C
-55
-25
5
35
65
95
125
2
3
4
5
V
A
, V
B
(V)
TEMPERATURE (°C)
V
A,
V
B
(V)
CHARGE INJECTION, CHARGE-
INJECTION MATCHING vs. V
A
, V
B
(+5V SUPPLY)
MAX4528-07
CHARGE INJECTION, CHARGE-
INJECTION MATCHING vs. V
A
, V
B
(+3V SUPPLY)
MAX4528-08
TRANSITION TIME
vs. SUPPLY VOLTAGE
MAX4528-09
4
∆Q
MATCHING
2
0
Q (pC)
4
3
2
Q (pC)
1
0
Q
Y
V+ = 3V
V- = 0V
250
200
Q
X
Q
X
-2
-4
-6
-8
-10
0
1
2
3
V+ = 5V
V- = 0V
Q
Y
t
TRANS
(ns)
150
SINGLE SUPPLY
100
-1
-2
-3
4
5
0
1
2
3
4
5
∆Q
MATCHING
50
DUAL SUPPLIES
0
2
4
V
A
, V
B
(V)
6
8
SUPPLY VOLTAGE (V)
10
V
A
, V
B
(V)
_______________________________________________________________________________________
5
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