19-1162; Rev 0a; 12/96
Low-Voltage, CMOS Analog Multiplexers/Switches
with Enable Inputs and Address Latching
The MAX4530/MAX4531/MAX4532 are low-voltage,
CMOS analog ICs configured as an 8-channel multiplexer (mux) (MAX4530), two 4-channel muxes
(MAX4531), and three single-pole/double-throw
switches (MAX4532). These devices are pin compatible
with the industry-standard 74HC4351/74HC4352/
74HC4353. All devices have two complementary
switch-enable inputs and address latching.
The MAX4530/MAX4531/MAX4532 operate from a single supply of +2V to +12V, or from dual supplies of
±2V to ±6V. On-resistance (150Ω max) is matched
between switches to 8Ω max. Each switch can handle
rail-to-rail analog signals. Off-leakage current is only
1nA at TA = +25°C and 50nA at TA = +85°C.
All digital inputs have 0.8V and 2.4V logic thresholds,
ensuring both TTL- and CMOS-logic compatibility when
using ±5V or a single +5V supply.
____________________________Features
♦ Pin Compatible with
74HC4351/74HC4352/74HC4353
♦ ±2.0V to ±6V Dual Supplies
+2.0V to +12V Single Supply
♦ 75Ω Signal Paths with ±5V Supplies
150Ω Signal Paths with +5V Supply
♦ Rail-to-Rail® Signal Handling
♦ tON and tOFF = 150ns and 120ns at ±4.5V
♦ 2kV ESD Protection per Method 3015.7
♦ TTL/CMOS-Compatible Inputs
♦ Small, 20-Pin SSOP/SO/DIP Packages
Ordering Information
________________________Applications
Battery-Operated Equipment
PART
TEMP. RANGE
Data Acquisition
MAX4530CPP
0°C to +70°C
20 Plastic DIP
Test Equipment
MAX4530CWP
0°C to +70°C
20 SO
MAX4530CAP
0°C to +70°C
20 SSOP
MAX4530C/D
0°C to +70°C
Dice*
Avionics
Networking
PIN-PACKAGE
Ordering Information continued at end of data sheet.
*Contact factory for availability.
ATE Equipment
Audio-Signal Routing
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Pin Configurations
TOP VIEW
NO1 1
20 V+
NO0B 1
20 V+
NOB 1
20 V+
NO3 2
19 NO2
NO1B 2
19 NO1A
NCB 2
19 COMB
N.C. 3
18 NO4
N.C. 3
18 NO2A
N.C. 3
18 COMC
COM 4
17 NO0
COMB 4
17 COMA
NOA 4
17 NOC
NO7 5
16 NO6
NO3B 5
16 NO0A
COMA 5
16 NCC
NO5 6
15 ADDC
NO2B 6
15 NO3A
NCA 6
EN1 7
14 N.C.
EN1 7
EN2 8
13 ADDB
EN2
V- 9
12 ADDA
GND 10
LOGIC
MAX4530
11 LE
NARROW DIP/WIDE SO
N.C. = NOT CONNECTED
15 ADDC
14 N.C.
EN1 7
8
13 ADDB
EN2 8
13 ADDB
V- 9
12 ADDA
V- 9
12 ADDA
GND 10
LOGIC
MAX4531
11 LE
NARROW DIP/WIDE SO
GND 10
LOGIC
MAX4532
14 N.C.
11 LE
NARROW DIP/WIDE SO
Truth Table appears at end of data sheet.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
MAX4530/MAX4531/MAX4532
General Description
MAX4530/MAX4531/MAX4532
Low-Voltage, CMOS Analog Multiplexers/Switches
with Enable Inputs and Address Latching
ABSOLUTE MAXIMUM RATINGS
Voltages Referenced to VV+ .............................................................................-0.3 to +13V
Voltage into Any Terminal (Note 1)
.................-0.3 to (V+ + 0.3V) or ±20mA (whichever occurs first)
Continuous Current into Any Terminal..............................±20mA
Peak Current, NO, NC, or COM_
(pulsed at 1ms, 10% duty cycle)...................................±40mA
ESD per Method 3015.7 ..................................................>2000V
Continuous Power Dissipation (TA = +70°C)
20-Pin Plastic DIP (derate 11.11mW/°C
above +70°C)................................................................889mW
20-Pin SO (derate 10.00mW/°C above +70°C).............800mW
20-Pin SSOP (derate 8.00mW/°C above +70°C) ..........640mW
Operating Temperature Ranges
MAX453_C_P .......................................................0°C to +70°C
MAX453_E_P ....................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Note 1: Voltages exceeding V+ or V- on any signal terminal are clamped by internal diodes. Limit forward-diode current to
maximum 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+ = +5V ±10%, V- = -5V ±10%, GND = 0, VADD_H = VEN_H = V LE = 2.4V, VADD_L = VEN_L = 0.8V, TA = TMIN to TMAX, unless
otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
(Note 2)
UNITS
SWITCH
Analog-Signal Range
Channel On-Resistance
On-Resistance Matching
Between Channels (Note 4)
VCOM, VNO,
(Note 3)
VNC_
RON
INO = 2mA, VCOM = ±3.5V,
V+ = +4.5V, V- = -4.5V
TA = +25°C
∆RON
INO = 2mA, VCOM = ±4.5V,
V+ = +4.5V, V- = -4.5V
TA = +25°C
On-Resistance Flatness
(Note 5)
RFLAT(ON)
NO-Off Leakage Current
(Note 6)
INO(OFF)
COM-Off Leakage Current
(Note 6)
COM-On Leakage Current
(Note 6)
2
V45
TA = TMIN to TMAX
75
100
1
TA = TMIN to TMAX
8
12
INO = 2mA; VCOM = -3V, 0V, +3V; TA = +25°C
V+ = 5V; V- = -5V
TA = TMIN to TMAX
4
10
13
TA = +25°C
-1
TA = TMIN to TMAX
-10
VCOM = ±4.5V,
TA = +25°C
MAX4530
VNO = ± 4.5V,
TA = TMIN to TMAX
V+ = 5.5V, V- = -5.5V
-2
VNO = ±4.5V, VCOM = 4.5V,
V+ = 5.5V, V- = -5.5V
V+
0.01
1
10
0.01
-100
Ω
Ω
Ω
nA
2
100
ICOM(OFF)
nA
VCOM = ±4.5V,
T = +25°C
MAX4531/ A
VNO = ± 4.5V,
MAX4532
TA = TMIN to TMAX
V+ = 5.5V, V- = -5.5V
ICOM(ON)
V
VCOM = ±4.5V,
V+ = 5.5V,
V- = -5.5V
MAX4530
TA = +25°C
TA = TMIN to TMAX
MAX4531
MAX4531/ TA = +25°C
MAX4532 TA = TMIN to TMAX
-1
0.01
-50
-2
50
0.01
-100
-1
1
2
100
0.01
-50
_______________________________________________________________________________________
1
50
nA
Low-Voltage, CMOS Analog Multiplexers/Switches
with Enable Inputs and Address Latching
(V+ = +5V ±10%, V- = -5V ±10%, GND = 0, VADD_H = VEN_H = V LE = 2.4V, VADD_L = VEN_L = 0.8V, TA = TMIN to TMAX, unless
otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
(Note 2)
UNITS
DIGITAL LOGIC INPUT
Logic High Threshold
VADD_H, VEN_H,
V LE
TA = TMIN to TMAX
Logic Low Threshold
VADD_L, VEN_L,
V LE
TA = TMIN to TMAX
Input Current with
Input Voltage High
IADD_H, IEN_H,
I LE
Input Current with
Input Voltage Low
IADD_L, IEN_L,
I LE
1.5
0.8
1.5
VADD_H = 2.4V, VADD_L = 0.8V
-0.1
0.01
VADD_H = 2.4V, VADD_L = 0.8V
-0.1
2.4
V
V
0.1
µA
0.1
µA
±6
V
SUPPLY
Power-Supply Range
V+, V-
±2.0
Positive Supply Current
I+
VEN_ = VADD_ = V LE = 0V/V+,
V+ = 5.5V, V- = -5.5V
TA = +25°C
Negative Supply
Current
I-
VEN_ = VADD_ = V LE = 0V/V+,
V+ = 5.5V, V- = -5.5V
TA = +25°C
-1
TA = TMIN to TMAX
-10
IGND
VEN_ = VADD_ = V LE = 0V/V+,
V+ = 5.5V, V- = -5.5V
TA = +25°C
-1
1
TA = TMIN to TMAX
-10
10
IGND Supply Current
-1
TA = TMIN to TMAX
-10
0.001
1
10
0.001
1
10
µA
µA
µA
DYNAMIC
Transition Time
tTRANS
Figure 1
tBBM
Figure 3
Enable Turn-On Time
tON(EN)
Figure 2
Enable Turn-Off Time
tOFF(EN)
Figure 2
Setup Time, Channel
Select to Latch Enable
tS
Figure 4
Hold Time, Latch Enable
to Channel Select
tH
Figure 6
tMPW
Figure 5
Break-Before-Make
Interval
Pulse Width,
Latch Enable
Charge Injection
(Note 3)
Q
TA = +25°C
60
TA = TMIN to TMAX
TA = +25°C
150
250
4
TA = +25°C
10
10
TA = TMIN to TMAX
ns
150
250
TA = +25°C
40
TA = TMIN to TMAX
100
150
TA = +25°C
50
TA = TMIN to TMAX
60
TA = +25°C
0
TA = TMIN to TMAX
0
TA = +25°C
60
TA = TMIN to TMAX
70
ns
ns
ns
ns
ns
ns
CL = 1nF, VNO = 0V, Figure 6
TA = +25°C
1.5
5
pC
Off Isolation (Note 7)
VISO
VEN2 = 0V, RL = 1kΩ,
f = 1MHz
TA = +25°C
-65
dB
Crosstalk Between
Channels
VCT
V EN1 = 0V, VEN2 = 2.4V,
f = 1MHz, VGEN = 1Vp-p,
RL = 1kΩ
TA = +25°C
-92
dB
_______________________________________________________________________________________
3
MAX4530/MAX4531/MAX4532
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
MAX4530/MAX4531/MAX4532
Low-Voltage, CMOS Analog Multiplexers/Switches
with Enable Inputs and Address Latching
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = +5V ±10%, V- = -5V ±10%, GND = 0, VADD_H = VEN_H = V LE = 2.4V, VADD_L = VEN_L = 0.8V, TA = TMIN to TMAX, unless
otherwise noted.)
PARAMETER
SYMBOL
Distortion, Total
Harmonic
THD
Logic Input
Capacitance
CIN
NO-Off Capacitance
COM-Off Capacitance
MIN
CONDITIONS
CONDITIONS
TA = +25°C
0.025
f = 1MHz
TA = +25°C
3
CNO(OFF)
f = 1MHz, VEN = VCOM = 0V
TA = +25°C
3
CCOM(OFF)
f = 1MHz,
VEN2 = VCOM = 0V
MAX4530
COM-On Capacitance
TYP
MAX
(Note 2)
CCOM(ON)
f = 1MHz,
VEN1 = VCOM = 0V,
VEN2 = 2.4V
MAX4531
0/
0
pF
15
9
TA = +25°C
MAX4532
pF
6
MAX4530
MAX4531
UNITS
26
TA = +25°C
pF
20
MAX4532
17
ELECTRICAL CHARACTERISTICS—Single +5V Supply
(V+ = +5V ±10%, V- = 0, GND = 0, VADD_H = VEN_H = V LE = 2.4V, VADD_L = VEN_L = 0.8V, TA = TMIN to TMAX, unless
otherwise noted.)
PARAMETER
SYMBOL
MIN
CONDITIONS
TYP
MAX
(Note 2)
UNITS
SWITCH
Analog Signal Range
VCOM, VNO
(Note 3)
0
RON
INO = 1mA, VCOM = 3.5V,
V+ = 4.5V
On-Resistance
Matching Between
Channels (Notes 3, 4)
∆RON
INO = 1mA, VCOM = 3.5V,
V+ = 4.5V
On-Resistance Flatness
RFLAT
INO = 1mA; VCOM = 3V, 2V, 1V;
V+ = 5V
INO(OFF)
VNO = 4.5V; VCOM = 4.5V, 1V;
V+ = 5.5V
On-Resistance
NO-Off Leakage
Current (Note 8)
COM-Off Leakage
Current (Note 8)
ICOM(OFF)
VCOM = 4.5V, 1V;
VNO = 1V, 4.5V;
V+ = 5.5V
MAX4530
MAX4531/
MAX4532
MAX4530
COM-On Leakage
Current (Note 8)
4
ICOM(ON)
MAX4531
MAX4531/
MAX4532
TA = +25°C
V+
80
TA = TMIN to TMAX
150
200
TA = +25°C
2
15
20
TA = +25°C
Ω
10
TA = +25°C
-1
1
TA = TMIN to TMAX
-10
10
-2
2
-100
100
TA = +25°C
-1
1
TA = TMIN to TMAX
-50
50
TA = +25°C
-2
2
TA = TMIN to TMAX
TA = TMIN to TMAX
Ω
Ω
TA = TMIN to TMAX
TA = +25°C
V
-100
100
TA = +25°C
-1
1
TA = TMIN to TMAX
-50
50
_______________________________________________________________________________________
nA
nA
nA
Low-Voltage, CMOS Analog Multiplexers/Switches
with Enable Inputs and Address Latching
(V+ = +5V ±10%, V- = 0, GND = 0, V ADD_H = V EN_H = V LE = 2.4V, V ADD_L = V EN_L = 0.8V, T A = T MIN to T MAX , unless
otherwise noted.)
PARAMETER
SYMBOL
MIN
CONDITIONS
TYP
MAX
(Note 2)
UNITS
DIGITAL LOGIC INPUT
Logic-High Threshold
VADD_H,
VEN_H, V LE
TA = TMIN to TMAX
Logic-Low Threshold
VADD_L,
VEN_L, V LE
TA = TMIN to TMAX
Input Current with
Input Voltage High
IADD_H,
IEN_H, I LE
VH = 2.4V, VL = 0.8V
-0.1
0.1
µA
Input Current with
Input Voltage Low
IADD_L,
IEN_L, I LE
VH = 2.4V, VL = 0.8V
-0.1
0.1
µA
V
1.5
0.8
2.4
1.5
V
V
SUPPLY
Power-Supply Range
2.0
12
-1.0
1.0
Positive Supply Current
I+
VEN_ = VADD = V LE = 0V, V+;
V+ = 5.5V; V- = 0V
TA = +25°C
TA = TMIN to TMAX
-10
10
Negative Supply
Current
I-
VEN_ = VADD = V LE = 0V, V+;
V+ = 5.5V; V- = 0V
TA = +25°C
-1.0
1.0
TA = TMIN to TMAX
-10
10
IGND
VEN_ = VADD = V LE = 0V, V+;
V+ = 5.5V; V- = 0V
TA = +25°C
-1.0
1.0
TA = TMIN to TMAX
-10
10
IGND Supply Current
µA
µA
µA
DYNAMIC
Transition Time
tTRANS
Break-Before-Make
Interval
tBBM
Figure 1, VNO = 3V
Figure 3 (Note 3)
Enable Turn-On Time
(Note 3)
tON(EN)
Figure 2
Enable Turn-Off Time
(Note 3)
tOFF(EN)
Figure 3
Set-Up Time, Channel
Select to Latch Enable
tS
Figure 7
Hold Time, Latch Enable
to Channel Select
tH
Figure 7
tMPW
Figure 7
Pulse Width, Latch
Enable
Charge Injection
(Note 3)
Q
Figure 7, CL = 1nF, VNO = 0V
TA = +25°C
90
TA = TMIN to TMAX
TA = +25°C
10
TA = +25°C
20
250
100
TA = TMIN to TMAX
40
TA = TMIN to TMAX
200
100
125
TA = +25°C
50
TA = TMIN to TMAX
60
TA = +25°C
0
TA = TMIN to TMAX
0
TA = +25°C
60
TA = TMIN to TMAX
70
ns
ns
250
TA = +25°C
TA = +25°C
200
250
ns
ns
ns
ns
ns
1.5
5
pC
_______________________________________________________________________________________
5
MAX4530/MAX4531/MAX4532
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
MAX4530/MAX4531/MAX4532
Low-Voltage, CMOS Analog Multiplexers/Switches
with Enable Inputs and Address Latching
ELECTRICAL CHARACTERISTICS—Single +3V Supply
(V+ = +5V ±10%, V- = 0, GND = 0, VADD_H = VEN_H = V LE = 2.4V, VADD_L = VEN_L = 0.8V, TA = TMIN to TMAX, unless
otherwise noted.)
MIN
TYP
MAX
PARAMETER
SYMBOL
CONDITIONS
(Note 2)
SWITCH
Analog Signal Range
VANALOG
(Note 3)
0
TA = +25°C
V+
220
500
UNITS
V
RON
INO = 1mA, VCOM = 1.5V,
V+ = 2.7V
Transition Time (Note 3)
tTRANS
Figure 1, VIN = 2.4V,
VNO1 = 1.5V, VNO8 = 0V
TA = +25°C
150
350
ns
Enable Turn-On Time
(Note 3)
tON(EN)
Figure 3, VINH = 2.4V,
VINL = 0V, VNO1 = 1.5V
TA = +25°C
150
350
ns
Enable Turn-Off Time
(Note 3)
tOFF(EN)
Figure 3, VINH = 2.4V,
VINL = 0V, VNO1 = 1.5V
TA = +25°C
60
150
ns
On-Resistance
TA = TMIN to TMAX
600
Ω
DYNAMIC
Set-Up Time, Channel
Select to Latch Enable)
tS
(Note 3)
TA = +25°C
100
ns
Hold Time, Latch Enable to
Channel Select
tH
(Note 3)
TA = +25°C
0
ns
Pulse Width, Latch Enable
tMPW
(Note 3)
TA = +25°C
120
ns
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: ∆RON = RON(max) - RON(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 ranges, i.e., VNO = 3V to 0V and 0V to -3V.
Note 6: Leakage parameters are 100% tested at maximum-rated hot-operating temperature, and guaranteed by correlation at
TA = +25°C.
Note 7: Worst-case isolation is on channel 4 because of its proximity to the COM pin. Off isolation = 20log VCOM / VNO,
VCOM = output, VNO = input to off switch.
Note 8: Leakage testing at single supply is guaranteed by correlation testing with dual supplies.
6
_______________________________________________________________________________________
Low-Voltage, CMOS Analog Multiplexers/Switches
with Enable Inputs and Address Latching
ON-RESISTANCE vs. VCOM
AND TEMPERATURE
(DUAL SUPPLIES)
V± = ±2.4V
100
V- = 0V
V+ = 2.4V
200
50
V± = ±5V
40
30
V± = ±6V
80
TA = +125°C
70
TA = +85°C
60
TA = +25°C
V+ = 3V
RON (Ω)
V± = ±3V
60
RON (Ω)
150
V+ = 5V
100
V+ = 10V
50
20
10
40
0
30
50
TA = -55°C
V+ = 12V
2
4
6
0
1
2
VCOM (V)
ON-RESISTANCE vs. VCOM
AND TEMPERATURE
(SINGLE SUPPLY)
OFF-LEAKAGE vs.
TEMPERATURE
V+ = 5V
V- = 0V
160
-5 -4 -3 -2 -1
1000
TA = +125°C
3
4
2
0
5
4
6
10
8
12
14
16
VCOM (V)
CHARGE INJECTION vs. VCOM
5
V+ = 5.5V
V- = -5.5V
MAX4530/1/2-06
0
VCOM (V)
MAX4530/1/2-05
180
-2
-4
MAX4530/1/2-04
-6
0
TA = +85°C
120
TA = +25°C
100
80
TA = -55°C
Qj (pC)
OFF-LEAKAGE (pA)
100
140
10
0
V+ = 5V
V- = 0V
V+ = 5V
V- = -5V
1
60
40
-5
0.1
3
2
4
5
-50
-25
VCOM (V)
0
25 50
75
TEMPERATURE (°C)
SUPPLY CURRENT vs.
TEMPERATURE
0
1
2
3
4
5
VCOM (V)
FREQUENCY RESPONSE
V+ = 5V
V- = -5V
VEN = VA = 0V, 5V
MAX4530/1/2-08
-10
I-
180
140
INSERTION LOSS
-20
-30
I+
1
-5 -4 -3 -2 -1
125
0
MAX4530/1/2-07
10
100
100
OFF ISOLATION
60
ON PHASE
-40
20
-50
-20
-60
-60
-70
-100
PHASE (DEGREES)
1
I+, I- (nA)
0
LOSS (dB)
RON (Ω)
250
90
70
RON (Ω)
V+ = 5V
V- = -5V
MAX4530/1/2-03
90
80
110
MAX4530/1/2-01
100
ON-RESISTANCE vs. VCOM
(SINGLE SUPPLY)
MAX4530/1/2-02
ON-RESISTANCE vs. VCOM
(DUAL SUPPLIES)
-140
-80
50Ω IN/OUT
-180
-90
0.1
-50
-25
0
25 50
75
TEMPERATURE (°C)
100
125
0.1
1
10
100
1000
FREQUENCY (MHz)
_______________________________________________________________________________________
7
MAX4530/MAX4531/MAX4532
__________________________________________Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
MAX4530/MAX4531/MAX4532
Low-Voltage, CMOS Analog Multiplexers/Switches
with Enable Inputs and Address Latching
______________________________________________________________Pin Description
PIN
NAME
FUNCTION
MAX4530
MAX4531
MAX4532
1, 2, 5, 6,
16, 17, 18, 19
—
—
NO0–NO7
—
1, 2, 5, 6
—
NO0B–NO3B
—
—
1
NOB
Analog Switch “B” Normally Open Input
Analog Switch Inputs 0–7
Analog Switch “B” Inputs 0–3
—
—
2
NCB
Analog Switch “B” Normally Closed Input
3, 14
3, 14
3, 14
N.C.
Not Internally Connected
4
—
—
COM
Analog Switch Common
—
4
19
COMB
—
—
4
NOA
—
17
5
COMA
—
—
6
NCA
Analog Switch “A” Normally Closed Input
7
7
7
EN1
Enable Logic Input #1 (see Truth Table).
8
8
8
EN2
Enable Logic Input #2 (see Truth Table).
9
9
9
V-
Negative Analog Supply Voltage Input. Connect
to GND for single supply operation.
10
10
10
GND
Negative Digital Supply Voltage Input. Connect
to digital ground. (Analog signals have no
ground
11
11
11
LE
12
12
12
ADDA
Address “A” Logic Input (see Truth Table).
13
13
13
ADDB
Address “B” Logic Input (see Truth Table).
15
—
15
ADDC
Address “C” Logic Input (see Truth Table).
—
15, 16, 18, 19
—
NO0A–NO3A
—
—
16
NCC
Analog Switch “C” Normally Closed Input
—
—
17
NOC
Analog Switch “C” Normally Open Input
—
—
18
COMC
20
20
20
V+
Analog Switch “B” Common
Analog Switch “A” Normally Open Input
Analog Switch “A” Common
Address Latch Logic Input (see Truth Table).
Analog Switch “A” Inputs 0–3
Analog Switch “C” Common
Positive Analog and Digital Supply-Voltage
Input
NO_, NC_, and COM_ pins are identical and interchangeable. Either may be considered as an input or output; signals pass equally
well in both directions.
8
_______________________________________________________________________________________
Low-Voltage, CMOS Analog Multiplexers/Switches
with Enable Inputs and Address Latching
Power-Supply Considerations
Overview
The MAX4530/MAX4531/MAX4532 construction is typical of most CMOS analog switches. They have three
supply pins: V+, V-, and GND. V+ and V- drive the
internal CMOS switches and set the limits of the analog
voltage on any switch. Reverse ESD-protection diodes
are internally connected between each analog-signal
pin and both V+ and V-. One of these diodes conducts
if any analog signal exceeds V+ or V-. During normal
operation, these and other reverse-biased ESD diodes
leak, forming the only current drawn from V+ or V-.
Virtually all of the analog leakage current comes from
the ESD diodes. Although the ESD diodes on a given
signal pin are identical and therefore fairly well balanced, they are reverse-biased differently. Each is
biased by either V+ or V- and the analog signal. This
means their leakages vary as the signal varies. The
difference in the two diode leakages to the V+ and Vpins constitutes the analog-signal-path leakage current.
All analog leakage current flows between each pin and
one of the supply terminals, not to the other switch terminal. For this reason, both sides of a given switch can
show leakage currents of either the same or opposite
polarity.
The analog-signal paths and GND are not connected.
V+ and GND power the internal logic and logic-level
translators, and set both the input and output logic limits. The logic-level translators convert the logic levels
into switched V+ and V- signals to drive the analog signals’ gates. This drive signal is the only connection
between the logic supplies and signals and the analog
supplies. V+ and V- have ESD-protection diodes to
GND.
The logic-level thresholds are TTL/CMOS compatible
when V+ = +5V. As V+ rises, the threshold increases
slightly, so when V+ reaches +12V, the threshold is
about 3.1V—above the TTL guaranteed, high-level minimum of 2.8V, but still compatible with CMOS outputs.
Bipolar Supplies
The MAX4530/MAX4531/MAX4532 operate with bipolar
supplies between ±2.0V and ±6V. The V+ and V- supplies need not be symmetrical, but their sum cannot
exceed the +13V absolute maximum rating.
Single Supply
The MAX4530/MAX4531/MAX4532 operate from a single supply between +2V and +12V when V- is connected to GND. All of the bipolar precautions must be
observed. At room temperature, they actually work with
a single supply at, near, or below +1.7V, although as
supply voltage decreases, switch on-resistance and
switching times become very high.
High-Frequency Performance
In 50Ω systems, signal response is reasonably flat up
to 50MHz (see Typical Operating Characteristics).
Above 20MHz, the on response has several minor
peaks that are highly layout-dependent. The problem is
not in turning the switch on, but in turning it off. The offstate switch acts like a capacitor and passes higher
frequencies with less attenuation. At 10MHz, off isolation is about -65dB in 50Ω systems, becoming worse
(approximately 20dB per decade) as frequency
increases. Higher circuit impedances also make off isolation worse. Adjacent channel attenuation is about 3dB
above that of a bare IC socket, and is due entirely to
capacitive coupling.
_______________________________________________________________________________________
9
MAX4530/MAX4531/MAX4532
__________Applications Information
MAX4530/MAX4531/MAX4532
Low-Voltage, CMOS Analog Multiplexers/Switches
with Enable Inputs and Address Latching
______________________________________________Test Circuits/Timing Diagrams
V+
VADD_
50Ω
LE
V+
V+
ADDC
NO0
ADDB
NO1–NO6
ADDA
NO7
+3V
50%
VADD_
0
-3V
COM
VNO0
VOUT
90%
MAX4530
V+
300Ω
EN2
EN1
35pF
VOUT
0
90%
V-
GND
VNO7
V-
tTRANS
tTRANS
V+
VADD_
50Ω
LE
V+
V+
ADDA
NO0
ADDB
NO1_, NO2_
NO3_
MAX4531
V+
+3V
0
-3V
COM
EN1
GND
VNO0
VOUT
300Ω
EN2
50%
VADD_
35pF
90%
VOUT
0
90%
VVNO3
V-
tTRANS
tTRANS
V+
VADD_
LE
V+
V+
NO_
ADD_
+3V
50%
VADD_
0
50Ω
NC_
MAX4532
V+
COM
GND
VNC_
VOUT
300Ω
EN2
EN1
-3V
35pF
90%
VOUT
0
90%
VVNO_
V-
tTRANS
Figure 1. Address Transition Time
10
______________________________________________________________________________________
tTRANS
Low-Voltage, CMOS Analog Multiplexers/Switches
with Enable Inputs and Address Latching
V+
V+
V+
LE
+3V
NO0
ADDC
0
NO1–NO7
ADDB
50%
VEN1
ADDA
MAX4530
VEN1
COM
300Ω
EN1
V+
50Ω
EN2
GND
VNO0
VOUT
35pF
90%
VOUT
90%
V0
V-
tON
tOFF
V+
LE
+3V
NO0_
MAX4531
0
COM_
300Ω
50Ω
EN2
GND
VNO0
VOUT
EN1
V+
50%
VEN1
NO1_, N02_, NO3_
ADDB
VEN1
V+
V+
ADDA
35pF
90%
VOUT
90%
V0
V-
tON
tOFF
V+
LE
V+
V+
NO_
ADD_
NC_
MAX4532
VEN1
EN2
COM_
VNC_
VOUT
300Ω
GND
0
+3V
EN1
V+
50%
VEN1
35pF
90%
VOUT
90%
V-
50Ω
0
V-
tON
tOFF
V- = 0V FOR SINGLE-SUPPLY OPERATION.
REPEAT TEST FOR EACH SECTION.
REPEAT TEST FOR EN2, WITH PULSE INVERTED
AND EN1 CONNECTED TO GND.
Figure 2. Enable Switching Time
______________________________________________________________________________________
11
MAX4530/MAX4531/MAX4532
_________________________________Test Circuits/Timing Diagrams (continued)
MAX4530/MAX4531/MAX4532
Low-Voltage, CMOS Analog Multiplexers/Switches
with Enable Inputs and Address Latching
_________________________________Test Circuits/Timing Diagrams (continued)
V+
VADD_
LE
V+
ADDC
50Ω
NO0–NO7
ADDB
+3V
ADDA
MAX4530
V+
COM
VOUT
300Ω
EN2
EN1
35pF
V-
GND
VV+
VADD_
LE
V+
VADD_
ADDA
50Ω
NO0_–NO3_
ADDB
t F < 20ns
t R < 20ns
V+
MAX4531
+3V
COM_
50%
0
VNO_
VOUT
90%
VOUT
V+
300Ω
EN2
EN1
GND
35pF
V0
V-
tBBM
V+
VADD_
LE
V+
NO_, NC_
ADD_
+3V
50Ω
MAX4532
V+
COM
300Ω
EN2
EN1
VOUT
GND
35pF
VV-
V- = 0V FOR SINGLE-SUPPLY OPERATION.
REPEAT TEST FOR EACH SECTION.
Figure 3. Break-Before-Make Interval
12
______________________________________________________________________________________
Low-Voltage, CMOS Analog Multiplexers/Switches
with Enable Inputs and Address Latching
V+
LE
V+
V+
NO_
ADDC
CHANNEL
SELECT
VEN1
VNO = 0V
0
ADDB
ADDA
VEN1
V+
EN1
MAX4530
MAX4531
MAX4532
EN2
GND
50Ω
VOUT
COM
C L = 1000pF
∆VOUT
VOUT
V∆VOUT IS THE MEASURED VOLTAGE DUE TO CHARGE-TRANSFER
ERROR Q WHEN THE CHANNEL TURNS OFF.
VV- = 0 FOR SINGLE-SUPPLY OPERATION.
REPEAT TEST FOR EACH SECTION.
Q = ∆VOUT x CL
Figure 4. Charge Injection
V+
LE
V+
NO_
ADDC
NETWORK
ANALYZER
VIN
50Ω
CHANNEL
SELECT
OFF ISOLATION = 20log
VOUT
VIN
ON LOSS = 20log
VOUT
VIN
CROSSTALK = 20log
VOUT
VIN
50Ω
ADDB
ADDA
V+
EN2
EN1
MAX4530
MAX4531
MAX4532
MEASUREMENT
VOUT
50Ω
V-
GND
10nF
REF
COM_
50Ω
V-
MEASUREMENTS ARE STANDARDIZED AGAINST SHORT AT SOCKET TERMINALS.
OFF ISOLATION IS MEASURED BETWEEN COM_ AND OFF NO_ TERMINAL ON EACH SWITCH.
ON LOSS IS MEASURED BETWEEN COM_ AND ON TERMINAL ON EACH SWITCH.
CROSSTALK (MAX4531/MAX4532 IS MEASURED FROM ONE CHANNEL (A, B, C) TO ALL OTHER CHANNELS.
SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
Figure 5. Off Isolation, On Loss, and Crosstalk
V+
LE
V+
ADDC
CHANNEL
SELECT
ADDB
ADDA
V+
EN2
EN1
MAX4530
MAX4531
MAX4532
GND
NO_
NO_
COM
1MHz
CAPACITANCE
ANALYZER
VV-
Figure 6. NO/COM Capacitance
______________________________________________________________________________________
13
MAX4530/MAX4531/MAX4532
_________________________________Test Circuits/Timing Diagrams (continued)
MAX4530/MAX4531/MAX4532
Low-Voltage, CMOS Analog Multiplexers/Switches
with Enable Inputs and Address Latching
_________________________________Test Circuits/Timing Diagrams (continued)
V+
EN2
VADD_
V+
ADDC
NO1–NO7
+3V
ADDB
50Ω
NO0
ADDA
MAX4530
VLE
LE
COM
50Ω
GND
EN1
V-
VOUT
300Ω
35pF
V-
V+
t MPW
3V
EN2
VADD_
VLE
V+
ADDA
NO1_, NO2_, NO3_
tH
ADDB
50Ω
VADD_
MAX4531
LE
COM_
50Ω
GND
EN1
V-
tH
tS
3V
NO0_
VLE
50%
0
+3V
300Ω
50%
0
VOUT
t ON, t OFF
3V
35pF
VOUT
V0
V+
EN2
VADD_
V+
ADD_
NO_
50Ω
NC_
VLE
LE
MAX4532
COM_
50Ω
EN1
GND
+3V
V-
VOUT
300Ω
35pF
V-
V- = 0V FOR SINGLE-SUPPLY OPERATION.
REPEAT TEST FOR EACH SECTION.
Figure 7. Setup and Hold Times, Minimum LE Width
14
______________________________________________________________________________________
90%
Low-Voltage, CMOS Analog Multiplexers/Switches
with Enable Inputs and Address Latching
LE
EN2
ADDRESS BITS
EN1
ON SWITCHES
ADDC*
ADDB
ADDA
MAX4530
MAX4531
MAX4532
0
1
0
X
X
X
Last address
Last address
Last address
X
0
X
X
X
X
All switches open
All switches open
All switches open
X
X
1
X
X
X
All switches open
All switches open
All switches open
1
1
0
0
0
0
COM–NO0
COMA–NO0A,
COMB–NO0B
COMA–NCA,
COMB–NCB,
COMC–NCC
1
1
0
0
0
1
COM–NO1
COMA–NO1A,
COMB–NO1B
COMA–NOA,
COMB–NCB,
COMC–NCC
1
1
0
0
1
0
COM–NO2
COMA–NO2A,
COMB–NO2B
COMA–NCA,
COMB–NOB,
COMC–NCC
1
1
0
0
1
1
COM–NO3
COMA–NO3A,
COMB–NO3B
COMA–NOA,
COMB–NOB,
COMC–NCC
1
1
0
1
0
0
COM–NO4
COMA–NO0A,
COMB–NO0B
COMA–NCA,
COMB–NCB,
COMC–NOC
1
1
0
1
0
1
COM–NO5
COMA–NO1A,
COMB–NO1B
COMA–NOA,
COMB–NCB,
COMC–NOC
1
1
0
1
1
0
COM–NO6
COMA–NO2A,
COMB–NO2B
1
1
0
1
1
1
COM–NO7
COMA–NO3A,
COMB–NO3B
COMA–NCA,
COMB–NOB,
COMC–NOC
COMA–NOA,
COMB–NOB,
COMC–NOC
X = Don’t Care
*ADDC not present on MAX4531.
Note: NO_ and COM_ pins are identical and interchangeable. Either may be considered an input or an output; signals pass equally
well in either direction. LE is independent of EN1 and EN2.
______________________________________________________________________________________
15
MAX4530/MAX4531/MAX4532
___________________________________________Truth Table/Switch Programming
MAX4530/MAX4531/MAX4532
Low-Voltage, CMOS Analog Multiplexers/Switches
with Enable Inputs and Address Latching
___________________________________________Ordering Information (continued)
PART
TEMP. RANGE
PIN-PACKAGE
MAX4530EPP
-40°C to +85°C
20 Plastic DIP
MAX4532CPP
PART
TEMP. RANGE
0°C to +70°C
PIN-PACKAGE
20 Plastic DIP
MAX4530EWP
-40°C to +85°C
20 SO
MAX4532CWP
0°C to +70°C
20 SO
MAX4530EAP
-40°C to +85°C
20 SSOP
MAX4532CAP
0°C to +70°C
20 SSOP
MAX4531CPP
0°C to +70°C
20 Plastic DIP
MAX4532C/D
0°C to +70°C
Dice*
MAX4531CWP
0°C to +70°C
20 SO
MAX4532EPP
-40°C to +85°C
20 Plastic DIP
MAX4531CAP
0°C to +70°C
20 SSOP
MAX4532EWP
-40°C to +85°C
20 SO
MAX4531C/D
0°C to +70°C
Dice*
MAX4532EAP
-40°C to +85°C
20 SSOP
MAX4531EPP
-40°C to +85°C
20 Plastic DIP
MAX4531EWP
-40°C to +85°C
20 SO
MAX4531EAP
-40°C to +85°C
20 SSOP
*Contact factory for availability.
__________________________________________________________Chip Topographies
MAX4530/MAX4532
MAX4531
V+
NO3 (NCB)
NO1 (NOB)
V+
NO2B
NO2 (COMB)
NO0B
NO2A
NO4 (COMC)
COM
(NOA)
NO1A
COMB
N.C.
NO7
(COMA)
COMA
NO0 (NOC)
NO5
(NCA)
NO6 (NCC) 0.081"
(2.06mm)
NO3B
NO0A
NO1B
NO3A
ADDC
EN1
ADDB
EN2
0.081"
(2.06mm)
ADDB
EN1
N.C.
EN2
V- GND LE ADDA
V- GND LE ADDA
0.053"
(1.35mm)
0.053"
(1.35mm)
( ) ARE FOR MAX4532
TRANSISTOR COUNT: 255
SUBSTRATE CONNECTED TO V+
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
16 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600
© 1996 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.