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MAX4782
Technical data
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MAXIM MAX4781, MAX4782, MAX4783 Technical data

MAX4781/MAX4782/MAX4783
High-Speed, Low-Voltage, 0.7Ω CMOS Analog
Switches/Multiplexers
________________________________________________________________ Maxim Integrated Products 1
19-2522; Rev 3; 2/05
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.
General Description
The MAX4781/MAX4782/MAX4783 are high-speed, low-voltage, low on-resistance, CMOS analog multiplex­ers/switches configured as an 8-channel multiplexer (MAX4781), two 4-channel multiplexers (MAX4782), and three single-pole/double-throw (SPDT) switches (MAX4783).
These devices operate with a +1.6V to +3.6V single supply. When powered from a +3V supply, MAX4781/ MAX4782/MAX4783 feature a 0.7Ω on-resistance (RON), with 0.3Ω RONmatching between channels, and
0.1Ω RONflatness. These devices handle rail-to-rail analog signals while consuming less than 3µW of qui­escent power. They are available in space-saving 16­pin thin QFN (3mm x 3mm) and TSSOP packages.
Applications
Battery-Operated Equipment
Audio Signal Routing
Low-Voltage Data-Acquisition Systems
Communications Circuits
Features
♦ On-Resistance
0.7Ω (+3V Supply)
1.6Ω (+1.8V Supply)
♦ On-Resistance Match Between Channels
0.3Ω (+3V Supply)
♦ On-Resistance Flatness
0.1Ω (+3V Supply)
♦ Single-Supply Operation Down to 1.6V ♦ High-Current Handling Capacity (150mA
Continuous)
♦ +1.8V CMOS-Logic Compatible ♦ Fast Switching Times: tON= 11ns, t
OFF
= 4ns
♦ Pin Compatible with Industry-Standard
74HC4051/74HC4052/74HC4053 and MAX4617/MAX4618/MAX4619
♦ Available in 3mm x 3mm 16-Pin Thin QFN Packages
Ordering Information
Pin Configurations/Functional Diagrams continued at end of data sheet.
Pin Configurations/Functional Diagrams
PART TEMP RANGE PIN-PACKAGE
MAX4781EUE -40°C to +85°C 16 TSSOP
MAX4781ETE -40°C to +85°C 16 Thi n QFN ( 3m m x 3m m )
MAX4782EUE -40°C to +85°C 16 TSSOP
MAX4782ETE -40°C to +85°C 16 Thi n QFN ( 3m m x 3m m )
MAX4783EUE -40°C to +85°C 16 TSSOP
MAX4783ETE -40°C to +85°C
16 Thi n QFN ( 3m m x 3m m )
TOP VIEW
X
1
X7
2
X5
3
4
ENABLE
MAX4781
V
X4X6
CC
16 15 14 13
LOGIC
N.C.
3mm x 3mm THIN QFN
CB
X2
X1
12
X0
11
X3
10
A
9
8765
ENABLE
N.C.
1
X4
2
X6
3
X
X7
4
5
X5
6
7
8
LOGIC
MAX4781
TSSOP
16
V
CC
15
X2
14
X1
X0
13
12
X3
11
A
B
10
9
C
MAX4781/MAX4782/MAX4783
High-Speed, Low-Voltage, 0.7Ω CMOS Analog Switches/Multiplexers
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—Single +3V Supply
(VCC= +2.7V to +3.6V, GND = 0, VIH= 1.4V, VIL= 0.5V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at
T
A
= +25°C.) (Notes 2, 3)
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.
Voltages Referenced to GND
V
CC
, A, B, C, and ENABLE ...............................-0.3V to +4.6V
Voltage at Any Other Terminal
(Note 1)...................................................-0.3V to (V
CC
+ 0.3V)
Continuous Current into A, B, C, ENABLE........................±10mA
Continuous Current into X, Y, Z, X_, Y_, Z_ ....................±150mA
Peak Current into X, Y, Z, X_, Y_, Z_
(pulsed at 1ms, 10% duty cycle)................................±300mA
Continuous Power Dissipation
16-Pin Thin QFN (derate 16.9mW/°C above +70°C) ...1349mW
16-Pin TSSOP (derate 5.7mW/°C above +70°C) ........ 457mW
Operating Temperature Range ..........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Note 1: Signals on X, Y, Z, X_, Y_, and Z_ exceeding V
CC
or GND are clamped by internal diodes. Limit forward-diode current to
maximum current rating.
)
PARAMETER SYMBOL CONDITIONS T
ANALOG SWITCH
V
, VY, VZ,
Analog Signal Range
X
_, V Y_, VZ_
V
X
A
MIN TYP MAX UNITS
0V
CC
V
V
= + 2.7V ; I
On-Resistance (Note 4) R
ON
On-Resistance Match Between Channels (Notes 4, 5)
On-Resistance Flatness (Note 6)
X_, Y_, Z_ Off-Leakage Current
X Off-Leakage Current (MAX4781 Only)
X On-Leakage Current (MAX4781 Only)
X, Y, Z Off-Leakage Current (MAX4782/MAX4783 Only)
X, Y, Z On-Leakage Current (MAX4782/MAX4783 Only)
∆R
R
FLAT(ON
I
X_(OFF)
I
Y_(OFF)
I
Z_(OFF)
I
X(OFF)
I
X(ON)
I
X(OFF)
I
Y(OFF)
I
Z(OFF)
I
X(ON)
I
Y(ON)
I
Z(ON)
ON
C C
100m A; V
V
= + 2.7V ; I
C C
100m A; V
V
= + 2.7V ; I
C C
100m A; V
1.7V
V
= + 3.6V ;
C C
V
, V Y_, V Z_ = 3.3V , 0.3V ; V X,
X _
, VZ = 0.3V, 3.3V
V
Y
V
= + 3.6V ;
C C
V
= 3.3V , 0.3V ;
X_
= 0.3V, 3.3V
V
X_
V
= +3.6V
C C
= 0.3V , 3.3V ;
V
X_
V
= 0.3V , 3.3V or fl oati ng
X_
V
= + 3.6V ;
C C
, V Y_, V Z_ = 3.3V , 0.3V ; V X,
V
X _
V
, VZ = 0.3V, 3.3V
Y
V
= + 3.6V ;
C C
V
, V Y, V Z = 0.3V , 3.3V ; VX, VY,
X
= 0.3V, 3.3V or floating
V
Z
, I
, I
X _
, VY, VZ = 1.7V
X
X _
, VY, VZ = 1.7V
X
X _
, VY, VZ = 0, 0.7V,
X
=
Y _
Z _
, I
, I
=
Y _
Z _
, I
, I
=
Y _
Z _
+25°C 0.7 1
T
MIN
to T
MAX
1.2
+25°C 0.3 0.4
T
MIN
to T
MAX
0.6
+25°C 0.1 0.2
T
MIN
to T
MAX
0.2
+25°C -2 0.002 +2
T
MIN
to T
MAX
-7 +7
+25°C -2 0.002 +2
T
MIN
to T
MAX
-50 +50
+25°C -2 0.002 +2
T
MIN
to T
MAX
-50 +50
+25°C -2 0.002 +2
T
MIN
to T
MAX
-25 +25
+25°C -2 0.002 +2
T
MIN
to T
MAX
-25 +25
Ω
Ω
Ω
nA
nA
nA
nA
nA
MAX4781/MAX4782/MAX4783
High-Speed, Low-Voltage, 0.7Ω CMOS Analog
Switches/Multiplexers
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued)
(VCC= +2.7V to +3.6V, GND = 0, VIH= 1.4V, VIL= 0.5V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA=
+25°C.) (Notes 2, 3)
),
),
PARAMETER
SYMBOL
CONDITIONS T
SWITCH DYNAMIC CHARACTERISTICS
V
, V
, V
Turn-On Time t
Turn-Off Time t
Address Transition Time t
Break-Before-Make Time (Note 7)
OFF
TRANS
t
BBM
Charge Injection Q
X_(OFF
Input Off-Capacitance
Output On-Capacitance
C C
Y_(OFF
C
Z_(OFF)
C
X(OFF),
C
Y(OFF),
C
Z(OFF)
C
X(ON)
C
Y(ON)
C
Z(ON)
Off-Isolation (Note 8) V
Channel-to-Channel Crosstalk (Note 9)
V
ON
ISO
CT
X _
= 35pF; Figure 1
C
L
V
, V
X _
C
= 35pF; Figure 1
L
V
, V
X _
C
= 35pF; Figure 2
L
V
, V
X _
C
= 35pF; Figure 3
L
V
GE N
Figure 4
f = 1MHz, Figure 6
f = 1MHz, Figure 6
f = 1MHz, Figure 6
RL = 50Ω, CL = 35pF, Figure 5
RL = 50Ω, CL = 35pF, Figure 5
= 1.5V ; RL = 50Ω ;
Y _
Z _
, V
= 1.5V ; RL = 50Ω ;
Y _
Z _
, V
= 1.5V ; RL = 50Ω ;
Y _
Z _
, V
= 1.5V ; RL = 50Ω ;
Y _
Z _
= 0, R
GE N
Total Harmonic Distortion THD f = 20Hz to 20kHz, 0.5V
DIGITAL I/O
Input Logic High V
Input Logic Low V
Input Leakage Current IIN_
IH
IL
V
, VB, VC = V
A
3.6V
POWER SUPPLY
Power-Supply Range V
Positive Supply Current I
CC
CC
VCC = 3.6V; VA, VB, VC;
E N A B L E
= 3.6V or 0
V
A
+25°C 11 25
T
to T
MIN
MAX
+25°C 4 15
T
to T
MIN
MAX
+25°C 11 25
T
to T
MIN
MAX
+25°C 18
T
to T
MIN
MAX
= 0, C L = 1nF,
+25°C -110 pC
+25°C 38 pF
MAX4781 310
MAX4782 158Output Off-Capacitance
+25°C
MAX4783
MAX4781 380
MAX4782 224
+25°C
MAX4783
f = 10MHz -75
f = 1MHz -90
f = 10MHz -65
f = 1MHz -80
, RL = 32Ω 0.045 %
P-P
T
to T
E N A B L E
= 0 or
T
T
MIN
MIN
MIN
to T
to T
MAX
MAX
MAX
MIN TYP MAX UNITS
27
20
27
2
ns
ns
ns
ns
pF
75
pF
140
dB
dB
1.4 V
0.5 V
-1 0.0005 +1 µA
+1.6 +3.6 V
1µA
MAX4781/MAX4782/MAX4783
High-Speed, Low-Voltage, 0.7Ω CMOS Analog Switches/Multiplexers
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS—Single +1.8V Supply
(VCC= +1.8V, GND = 0, VIH= 1V, VIL= 0.4V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.) (Notes 2, 3)
Note 2: The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column. Note 3: Devices are tested at maximum hot temperature and are guaranteed by design and correlation at T
A
= +25°C and -40°C
specifications.
Note 4: R
ON
and ∆RONmatching specifications for thin QFN-packaged parts are guaranteed by design.
Note 5: ∆R
ON
= R
ON(MAX)
- R
ON(MIN).
Note 6: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the
specified analog signal ranges.
Note 7: Guaranteed by design; not production tested. Note 8: Off-isolation = 20log10(V
COM_
/ VNO), V
COM_
= output, VNO= input to off switch.
Note 9: Between any two channels.
PARAMETER SYMBOL CONDITIONS T
ANALOG SWITCH
_, V Y _ ,
V
X
_, V X ,
Analog Signal Range
On-Resistance (Note 4) R
On-Resistance Match Between Channels (Notes 4, 5)
V
Z
V
, V
Y
Z
ON
∆R
ON
SWITCH DYNAMIC CHARACTERISTICS
Turn-On Time t
Turn-Off Time t
Address Transition Time t
Break-Before-Make Time (Note 7)
ON
OFF
TRANS
t
BBM
Charge Injection Q
DIGITAL I/O
Input Logic High V
Input Logic Low V
IH
IL
Input Leakage Current IIN_V A, VB, VC = V
POWER SUPPLY
Power-Supply Range V
Positive Supply Current I
CC
CC
VCC = 1.8V; IX_, IY_, IZ_ = 10mA; V
, VY, VZ = 1.0V
X
VCC = 1.8V; IX_, IY_, IZ_ = 10mA; V
, VY, VZ = 1.0V
X
VX_, VY_, VZ_ = 1.0V; RL = 50Ω;
= 35pF; Figure 1
C
L
VX_, VY_, VZ_ = 1.0V; RL = 50Ω;
= 35pF; Figure 1
C
L
VX_, VY_, VZ_ = 1.0V; RL = 50Ω;
= 35pF; Figure 2
C
L
VX_, VY_, VZ_ = 1V; RL = 50Ω; C
= 35pF; Figure 3
L
V
GEN
= 0, R
= 0, CL = 1nF,
GEN
Figure 4
E N A B L E
= 0 or 3.6V T
VCC = 3.6V; VA, VB, VC, V
E N A B L E
= 0 or 3.6V
A
MIN TYP MAX UNITS
0V
+25°C 1.6 2.5
T
to T
M IN
M AX
+25°C 0.3 0.4
T
to T
M IN
M AX
+25°C 17 30
T
to T
M IN
M AX
+25°C 8 20
T
to T
M IN
M AX
+25°C 17 30
T
to T
M IN
M AX
+25°C 26
T
M IN
to T
M AX
1
+25°C -40 pC
T
T
M IN
M IN
M IN
to T
to T
to T
M AX
M AX
M AX
1V
0.000
-1
1.6 3.6 V
CC
3.5
0.6
32
22
32
V
Ω
Ω
ns
ns
ns
ns
0.4 V
+1 µA
1µA
MAX4781/MAX4782/MAX4783
High-Speed, Low-Voltage, 0.7Ω CMOS Analog
Switches/Multiplexers
_______________________________________________________________________________________ 5
Typical Operating Characteristics
(GND = 0, TA = +25°C, unless otherwise noted.)
ON-RESISTANCE vs. VX, VY, V
2.0
1.8
1.6
1.4
(Ω)
1.2
ON
R
1.0
0.8
0.6
0.4 0 3.6
VCC = 1.8V
VCC = 2.0V
VCC = 2.5V
VCC = 2.7V
VCC = 3.0V
VCC = 3.3V
VX, VY, VZ (V)
CHARGE INJECTION vs. VX, VY, V
60
VCC = 1.8V
40
20
0
-20
-40
-60
CHARGE INJECTION (pC)
-80
-100
-120
VCC = 3.0V
0 3.0
VX, VY, VZ (V)
Z
MAX4781 toc01
VCC = 3.6V
3.22.80.4 0.8 1.2 2.01.6 2.4
Z
MAX4781 toc04
2.50.5 1.0 1.5 2.0
ON-RESISTANCE vs. VX, VY, VZ,
1.0
0.9
0.8
0.7
0.6
(Ω)
0.5
ON
R
0.4
0.3
0.2
0.1
0
0 3.0
1000
100
10
(nA)
CC
I
1
0.1
0.01
1.6 2.0 2.4 2.8 3.2 3.6
AND TEMPERATURE
TA = +85°C
TA = +25°C
VCC = 3.0V
TA = -40°C
VX, VY, VZ (V)
SUPPLY CURRENT vs. TEMPERATURE
TA = +85°C
TA = +25°C
TA = -40°C
VCC (V)
LEAKAGE CURRENT vs. TEMPERATURE
1000
VCC = 3.6V
MAX4781 toc02
100
(pA)
Z
, I
Y
, I
X
I
10
2.50.5 1.0 1.5 2.0
1
-40 856010 35-15
ON
OFF
TEMPERATURE (°C)
LOGIC THRESHOLD
vs. SUPPLY VOLTAGE
1.2
MAX4781 toc05
1.1
1.0
0.9
0.8
LOGIC THRESHOLD (V)
0.7
0.6
0.5
1.6 3.6
RISING
FALLING
2.1 2.6 3.1 SUPPLY VOLTAGE (V)
MAX4781toc03
MAX4781 toc06
TURN-ON/TURN-OFF TIME
vs. SUPPLY VOLTAGE
25
20
15
TIME (ns)
10
5
0
1.6 3.6
t
ON
t
OFF
2.0 2.4 2.8 3.2 SUPPLY VOLTAGE (V)
MAX4781 toc07
14
12
10
8
TIME (ns)
6
4
2
0
TURN-ON/TURN-OFF TIME
vs. TEMPERATURE
t
ON
t
OFF
VCC = 3.0V
-40 85
-15 10 35 60 TEMPERATURE (°C)
MAX4781 toc08
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