MAXIM MAX4783EUE

19-2522; Rev 3; 2/05
High-Speed, Low-Voltage, 0.7Ω CMOS Analog
Switches/Multiplexers
Features
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 RON matching between channels, and
0.1Ω RON flatness. 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.
♦ 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, tOFF = 4ns
♦ Pin Compatible with Industry-Standard
74HC4051/74HC4052/74HC4053 and
MAX4617/MAX4618/MAX4619
♦ Available in 3mm x 3mm 16-Pin Thin QFN Packages
Applications
Ordering Information
Battery-Operated Equipment
PART
Audio Signal Routing
Low-Voltage Data-Acquisition Systems
Communications Circuits
TEMP RANGE
PIN-PACKAGE
MAX4781EUE
-40°C to +85°C 16 TSSOP
MAX4781ETE
-40°C to +85°C 16 Thin QFN (3mm x 3mm)
MAX4782EUE
-40°C to +85°C 16 TSSOP
MAX4782ETE
-40°C to +85°C 16 Thin QFN (3mm x 3mm)
MAX4783EUE
-40°C to +85°C 16 TSSOP
-40°C to +85°C 16 Thin QFN (3mm x 3mm)
MAX4783ETE
Pin Configurations/Functional Diagrams
TOP VIEW
MAX4781
X
X6
X4
VCC
X2
16
15
14
13
1
12
2
11
X0
X5
3
10
X3
ENABLE
4
9
A
5
6
7
8
N.C.
GND
C
B
1
16
VCC
X6
2
15
X2
X
3
14
X1
X7
4
13
X0
X5
5
12
X3
ENABLE
6
11
A
N.C.
7
10
B
GND
8
9
C
X1
X7
LOGIC
X4
3mm x 3mm THIN QFN
LOGIC
MAX4781
TSSOP
Pin Configurations/Functional Diagrams continued 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
MAX4781/MAX4782/MAX4783
General Description
MAX4781/MAX4782/MAX4783
High-Speed, Low-Voltage, 0.7Ω CMOS Analog
Switches/Multiplexers
ABSOLUTE MAXIMUM RATINGS
Voltages Referenced to GND
VCC, A, B, C, and ENABLE ...............................-0.3V to +4.6V
Voltage at Any Other Terminal
(Note 1)...................................................-0.3V to (VCC + 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 VCC or GND 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—Single +3V Supply
(VCC = +2.7V to +3.6V, GND = 0, VIH = 1.4V, VIL = 0.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at
TA = +25°C.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
TA
MIN
TYP
MAX
UNITS
VCC
V
ANALOG SWITCH
Analog Signal Range
On-Resistance (Note 4)
On-Resistance Match
Between Channels
(Notes 4, 5)
On-Resistance Flatness
(Note 6)
2
VX, VY, VZ,
VX_, VY_, VZ_
0
RON
VCC = +2.7V; IX_, IY_, IZ_ =
100mA; VX, VY, VZ = 1.7V
∆RON
VCC = +2.7V; IX_, IY_, IZ_ =
100mA; VX, VY, VZ = 1.7V
RFLAT(ON)
+25°C
0.7
TMIN to TMAX
1
1.2
+25°C
0.3
Ω
0.4
Ω
TMIN to TMAX
VCC = +2.7V; IX_, IY_, IZ_ =
100mA; VX, VY, VZ = 0, 0.7V,
1.7V
+25°C
0.6
0.1
0.2
Ω
TMIN to TMAX
0.2
X_, Y_, Z_
Off-Leakage Current
IX_(OFF)
IY_(OFF)
IZ_(OFF)
VCC = +3.6V;
V X_, VY_, VZ_ = 3.3V, 0.3V; VX,
VY, VZ = 0.3V, 3.3V
+25°C
-2
TMIN to TMAX
-7
X Off-Leakage Current
(MAX4781 Only)
VCC = +3.6V;
VX_ = 3.3V, 0.3V;
VX_ = 0.3V, 3.3V
+25°C
-2
IX(OFF)
TMIN to TMAX
-50
X On-Leakage Current
(MAX4781 Only)
VCC = +3.6V
VX_ = 0.3V, 3.3V;
VX_ = 0.3V, 3.3V or floating
+25°C
-2
IX(ON)
TMIN to TMAX
-50
X, Y, Z Off-Leakage Current
(MAX4782/MAX4783 Only)
IX(OFF)
IY(OFF)
IZ(OFF)
VCC = +3.6V;
VX_, VY_, VZ_ = 3.3V, 0.3V; VX,
VY, VZ = 0.3V, 3.3V
+25°C
-2
TMIN to TMAX
-25
X, Y, Z On-Leakage Current
(MAX4782/MAX4783 Only)
IX(ON)
IY(ON)
IZ(ON)
VCC = +3.6V;
VX, VY, VZ = 0.3V, 3.3V; VX, VY,
VZ = 0.3V, 3.3V or floating
+25°C
-2
TMIN to TMAX
-25
0.002
+2
nA
+7
0.002
+2
nA
+50
0.002
+2
nA
+50
0.002
+2
nA
+25
0.002
+2
nA
_______________________________________________________________________________________
+25
High-Speed, Low-Voltage, 0.7Ω CMOS Analog
Switches/Multiplexers
(VCC = +2.7V to +3.6V, GND = 0, VIH = 1.4V, VIL = 0.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA =
+25°C.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
TA
TMIN to TMAX
MIN
TYP
MAX
UNITS
SWITCH DYNAMIC CHARACTERISTICS
+25°C
11
25
Turn-On Time
tON
VX_, VY_, VZ_ = 1.5V; RL = 50Ω;
CL = 35pF; Figure 1
Turn-Off Time
tOFF
VX_, VY_, VZ_ = 1.5V; RL = 50Ω;
CL = 35pF; Figure 1
TMIN to TMAX
Address Transition Time
tTRANS
VX_, VY_, VZ_ = 1.5V; RL = 50Ω;
CL = 35pF; Figure 2
TMIN to TMAX
Break-Before-Make Time
(Note 7)
tBBM
VX_, VY_, VZ_ = 1.5V; RL = 50Ω;
CL = 35pF; Figure 3
TMIN to TMAX
Q
VGEN = 0, RGEN = 0, CL = 1nF,
Figure 4
+25°C
-110
pC
+25°C
38
pF
Charge Injection
Input Off-Capacitance
CX_(OFF),
CY_(OFF),
CZ_(OFF)
f = 1MHz,
Figure 6
Output Off-Capacitance
CX(OFF),
CY(OFF),
CZ(OFF)
f = 1MHz,
Figure 6
CX(ON)
CY(ON)
CZ(ON)
f = 1MHz,
Figure 6
Output On-Capacitance
27
+25°C
4
20
+25°C
11
+25°C
18
ns
ns
ns
2
310
158
+25°C
MAX4783
75
MAX4781
380
MAX4782
25
27
MAX4781
MAX4782
15
ns
+25°C
pF
pF
224
MAX4783
140
Off-Isolation (Note 8)
VISO
RL = 50Ω, CL =
35pF, Figure 5
f = 10MHz
-75
f = 1MHz
-90
Channel-to-Channel Crosstalk
(Note 9)
VCT
RL = 50Ω, CL =
35pF, Figure 5
f = 10MHz
-65
f = 1MHz
-80
Total Harmonic Distortion
THD
f = 20Hz to 20kHz, 0.5VP-P, RL = 32Ω
dB
dB
0.045
%
DIGITAL I/O
Input Logic High
VIH
Input Logic Low
VIL
Input Leakage Current
IIN_
TMIN to TMAX
1.4
V
TMIN to TMAX
VA, VB, VC = V EN A B L E = 0 or
3.6V
TMIN to TMAX
-1
0.0005
0.5
V
+1
µA
+3.6
V
1
µA
POWER SUPPLY
Power-Supply Range
VCC
Positive Supply Current
ICC
+1.6
VCC = 3.6V; VA, VB, VC;
V EN A B L E = 3.6V or 0
_______________________________________________________________________________________
3
MAX4781/MAX4782/MAX4783
ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued)
MAX4781/MAX4782/MAX4783
High-Speed, Low-Voltage, 0.7Ω CMOS Analog
Switches/Multiplexers
ELECTRICAL CHARACTERISTICS—Single +1.8V Supply
(VCC = +1.8V, GND = 0, VIH = 1V, VIL = 0.4V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
TA
MIN
TYP
MAX
UNITS
VCC
V
ANALOG SWITCH
Analog Signal Range
On-Resistance (Note 4)
On-Resistance Match Between
Channels (Notes 4, 5)
VX_, VY_ ,
VZ_, VX,
VY, VZ
0
RON
VCC = 1.8V; IX_, IY_, IZ_ = 10mA; +25°C
VX, VY, VZ = 1.0V
TMIN to TMAX
1.6
∆RON
VCC = 1.8V; IX_, IY_, IZ_ = 10mA; +25°C
VX, VY, VZ = 1.0V
TMIN to TMAX
0.3
2.5
3.5
0.4
0.6
Ω
Ω
SWITCH DYNAMIC CHARACTERISTICS
Turn-On Time
tON
VX_, VY_, VZ_ = 1.0V; RL = 50Ω;
CL = 35pF; Figure 1
+25°C
Turn-Off Time
tOFF
VX_, VY_, VZ_ = 1.0V; RL = 50Ω;
CL = 35pF; Figure 1
+25°C
Address Transition Time
tTRANS
VX_, VY_, VZ_ = 1.0V; RL = 50Ω;
CL = 35pF; Figure 2
+25°C
Break-Before-Make Time
(Note 7)
tBBM
VX_, VY_, VZ_ = 1V; RL = 50Ω;
CL = 35pF; Figure 3
+25°C
Charge Injection
Q
VGEN = 0, RGEN = 0, CL = 1nF,
Figure 4
17
TMIN to TMAX
32
8
TMIN to TMAX
20
22
17
TMIN to TMAX
TMIN to TMAX
30
30
32
26
ns
ns
ns
1
+25°C
ns
-40
pC
DIGITAL I/O
Input Logic High
VIH
TMIN to TMAX
Input Logic Low
VIL
TMIN to TMAX
Input Leakage Current
IIN_
VA, VB, VC = V EN A B L E = 0 or 3.6V TMIN to TMAX
1
-1
V
0.000
0.4
V
+1
µA
3.6
V
1
µA
POWER SUPPLY
Power-Supply Range
VCC
Positive Supply Current
ICC
1.6
VCC = 3.6V; VA, VB, VC,
V EN A B L E = 0 or 3.6V
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 TA = +25°C and -40°C
specifications.
Note 4: RON and ∆RON matching specifications for thin QFN-packaged parts are guaranteed by design.
Note 5: ∆RON = RON(MAX) - RON(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(VCOM_ / VNO), VCOM_ = output, VNO = input to off switch.
Note 9: Between any two channels.
4
_______________________________________________________________________________________
High-Speed, Low-Voltage, 0.7Ω CMOS Analog
Switches/Multiplexers
ON-RESISTANCE vs. VX, VY, VZ,
AND TEMPERATURE
VCC = 1.8V
0.8
VCC = 3.6V
ON
VCC = 2.0V
1.2
VCC = 2.5V
0.6
0.5
TA = -40°C
100
OFF
10
0.3
VCC = 3.0V
0.8
TA = +25°C
0.4
VCC = 2.7V
1.0
IX, IY, IZ (pA)
0.7
1.4
RON (Ω)
0.2
0.6
VCC = 3.3V
0.1
VCC = 3.6V
VCC = 3.0V
0
0.4
0.5
1.0
1.5
2.0
3.0
2.5
-40
10
35
60
VX, VY, VZ (V)
TEMPERATURE (°C)
CHARGE INJECTION vs. VX, VY, VZ
SUPPLY CURRENT vs. TEMPERATURE
LOGIC THRESHOLD
vs. SUPPLY VOLTAGE
100
TA = +85°C
1.1
LOGIC THRESHOLD (V)
20
1.2
ICC (nA)
0
-20
-40
TA = +25°C
1
VCC = 3.0V
-80
0.1
TA = -40°C
0.01
1.0
1.5
2.0
2.5
0.8
FALLING
0.7
0.5
1.6
3.0
2.0
2.4
VX, VY, VZ (V)
2.8
3.2
3.6
1.6
2.1
VCC (V)
20
3.1
3.6
TURN-ON/TURN-OFF TIME
vs. TEMPERATURE
14
MAX4781 toc07
25
2.6
SUPPLY VOLTAGE (V)
TURN-ON/TURN-OFF TIME
vs. SUPPLY VOLTAGE
tON
12
10
TIME (ns)
0.5
RISING
0.9
0.6
-100
-120
1.0
MAX4781 toc08
-60
10
85
MAX4781 toc06
1000
MAX4781 toc04
VCC = 1.8V
0
-15
VX, VY, VZ (V)
60
40
1
0
0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6
MAX4781 toc05
0
15
TIME (ns)
RON (Ω)
1.6
CHARGE INJECTION (pC)
TA = +85°C
0.9
1000
MAX4781 toc02
1.8
LEAKAGE CURRENT vs. TEMPERATURE
1.0
MAX4781 toc01
2.0
MAX4781toc03
ON-RESISTANCE vs. VX, VY, VZ
tON
10
8
6
tOFF
4
tOFF
5
2
VCC = 3.0V
0
0
1.6
2.0
2.4
2.8
SUPPLY VOLTAGE (V)
3.2
3.6
-40
-15
10
35
60
85
TEMPERATURE (°C)
_______________________________________________________________________________________
5
MAX4781/MAX4782/MAX4783
Typical Operating Characteristics
(GND = 0, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
(GND = 0, TA = +25°C, unless otherwise noted.)
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
FREQUENCY RESPONSE
0.07
ON-RESPONSE
-10
MAX4781 toc10
0.08
MAX4781 toc09
VCC = 3V
10
0.06
-30
THD (%)
RESPONSE (dB)
MAX4781/MAX4782/MAX4783
High-Speed, Low-Voltage, 0.7Ω CMOS Analog
Switches/Multiplexers
-50
0.05
CROSSTALK
0.04
-70
0.03
-90
OFF-ISOLATION
-110
VCC = 3V
0.02
100
1k
10k
100k
1M
10M
100M
10
100
FREQUENCY (Hz)
1k
10k
100k
FREQUENCY (Hz)
MAX4781 Pin Description
PIN
6
NAME
TSSOP
THIN QFN
3
1
X
6
4
ENABLE
FUNCTION
Analog Switch Output
Digital Enable Input. Normally connect to GND. Drive to logic high to set all switches
off.
7
5
N.C.
No Connection. Not internally connected.
8
6
GND
Ground
9
7
C
Digital Address C Input
10
8
B
Digital Address B Input
11
9
A
Digital Address A Input
13, 14, 15,
12, 1, 5, 2,
4
11, 12, 13,
10, 15, 3,
16, 2
X0–X7
16
14
VCC
Positive Analog and Digital Supply Voltage Input
—
EP
PAD
Exposed Pad. Connect to GND.
Analog Switch Inputs X0–X7
_______________________________________________________________________________________
High-Speed, Low-Voltage, 0.7Ω CMOS Analog
Switches/Multiplexers
PIN
NAME
TSSOP
THIN QFN
1, 5, 2, 4
15, 3, 16, 2
Y0–Y3
3
1
Y
6
4
ENABLE
FUNCTION
Analog Switch Y Inputs Y0–Y3
Analog Switch Y Output
Digital Enable Input. Normally connect to GND. Drive to logic high to set all
switches off.
7
5
N.C.
No Connection. Not internally connected.
8
6
GND
Ground
9
7
B
Digital Address B Input
10
8
A
Digital Address A Input
12, 14, 15, 11
10, 12, 13, 9
X0–X3
13
11
X
16
14
VCC
Analog Switch X Inputs X0–X3
Analog Switch X Output
Positive Analog and Digital Supply Voltage Input
MAX4783 Pin Description
PIN
NAME
FUNCTION
TSSOP
1
THIN QFN
15
2
16
Y0
Analog Switch Y Normally Closed Input
3
1
Z1
Analog Switch Z Normally Open Input
4
2
Z
Analog Switch Z Output
5
3
Z0
Analog Switch Z Normally Closed Input
6
4
ENABLE
7
5
N.C.
No Connection. Not internally connected.
8
6
GND
Ground
9
7
C
Digital Address C Input
10
8
B
Digital Address B Input
11
9
A
Digital Address A Input
12
10
X0
Analog Switch X Normally Closed Input
13
11
X1
Analog Switch X Normally Open Input
14
12
X
Analog Switch X Output
15
13
Y
Analog Switch Y Output
16
14
VCC
Y1
Analog Switch Y Normally Open Input
Digital Enable Input. Normally connect to GND. Drive to logic high to set all
switches off.
Positive Analog and Digital Supply Voltage Input
_______________________________________________________________________________________
7
MAX4781/MAX4782/MAX4783
MAX4782 Pin Description
MAX4781/MAX4782/MAX4783
High-Speed, Low-Voltage, 0.7Ω CMOS Analog
Switches/Multiplexers
Applications Information
Power-Supply Considerations
Overview
The MAX4781/MAX4782/MAX4783 construction is typical
of most CMOS analog switches. There are two supply
inputs: VCC and GND. VCC and GND drive the internal
CMOS switches and set the limits of the analog voltage
on any switch. Internal reverse ESD-protection diodes are
connected between each analog signal input and both
VCC and GND. If any analog signal exceeds VCC or
GND, one of these diodes conducts. During normal operation, these and other reverse-biased ESD diodes leak,
forming the only current drawn from VCC or GND.
Virtually all the analog leakage current comes from the
ESD diodes. Although the ESD diodes on a given signal input are identical and therefore fairly well balanced, they are reverse-biased differently. Each diode
is biased by either VCC or GND and the analog signal.
Their leakages vary as the signal varies. The difference
in the two diodes’ leakages to VCC and GND constitutes the analog-signal-path leakage current. All analog
leakage current flows between each input and one of
the supply terminals, not to the other switch terminal.
Both sides of a given switch can show leakage currents
of either the same or opposite polarity.
VCC and GND power the internal logic and set the input
logic limits. Logic inputs have ESD-protection diodes
to ground.
High-Frequency Performance
In 50Ω systems, signal response is reasonably flat up
to 50MHz (see the Typical Operating Characteristics).
Above 20MHz, the on-response has several minor
peaks that are highly layout dependent. In the off state,
the switch acts like a capacitor and passes higher frequencies with less attenuation. At 10MHz, off-isolation
is approximately -50dB in 50Ω systems, becoming
worse (approximately 20dB per decade) as frequency
increases. Higher circuit impedance also degrades offisolation. Adjacent channel attenuation is approximately 3dB above that of a bare IC socket and is entirely
because of capacitive coupling.
Pin Nomenclature
The MAX4781/MAX4782/MAX4783 are pin compatible
with the industry-standard 74HC4051/74HC4052/
74HC4053 and the MAX4617/MAX4618/MAX4619. In
single-supply applications, they function identically and
have identical logic diagrams, although these parts differ electrically. The pin designations and logic diagrams in this data sheet conform to the original 1972
specifications published by RCA for the CD4051/
CD4052/CD4053. These designations differ from the
standard Maxim switch and mux designations found on
other Maxim data sheets such as the MAX4051/
MAX4052/MAX4053. Designers who are more comfortable with Maxim’s standard designations are advised
that the pin designations and logic diagrams on the
MAX4051/MAX4052/MAX4053 data sheet can be
applied to the MAX4781/MAX4782/MAX4783.
Power Supply
The MAX4781/MAX4782/MAX4783 operate from a single supply between +1.6V and +3.6V. Switch on-resistance increases as the supply voltage is lowered.
8
_______________________________________________________________________________________
High-Speed, Low-Voltage, 0.7Ω CMOS Analog
Switches/Multiplexers
MAX4781/MAX4782/MAX4783
Table 1. Truth Table/Switch Programming
SELECT INPUT
ON SWITCHES
ENABLE
INPUT
C*
B
A
MAX4781
MAX4782
MAX4783
H
✓
✓
✓
All switches open
All switches open
All switches open
L
L
L
L
X-X0
X-X0
Y-Y0
X-X0
Y-Y0
Z-Z0
L
L
L
H
X-X1
X-X1
Y-Y1
X-X1
Y-Y0
Z-Z0
L
L
H
L
X-X2
X-X2
Y-Y2
X-X0
Y-Y1
Z-Z0
L
L
H
H
X-X3
X-X3
Y-Y3
X-X1
Y-Y1
Z-Z0
L
H
L
L
X-X4
X-X0
Y-Y0
X-X0
Y-Y0
Z-Z1
L
H
L
H
X-X5
X-X1
Y-Y1
X-X1
Y-Y0
Z-Z1
L
H
H
L
X-X6
X-X2
Y-Y2
X-X0
Y-Y1
Z-Z1
L
H
H
H
X-X7
X-X3
Y-Y3
X-X1
Y-Y1
Z-Z1
✓ = Don’t care.
*Not present on MAX4782.
Note: Input and output pins are identical and interchangeable. Either can be considered an input or output. Signals pass equally
well in either direction.
_______________________________________________________________________________________
9
High-Speed, Low-Voltage, 0.7Ω CMOS Analog
Switches/Multiplexers
MAX4781/MAX4782/MAX4783
Test Circuits/Timing Diagrams
VCC
VENABLE
VCC
A
X0
B
VCC
50%
0
X1–X7
VX0
C
VENABLE
VCC
90%
MAX4781
ENABLE
VOUT
X
GND
90%
VOUT
35pF
0
50Ω
tOFF
tON
VCC
A
B
VENABLE
VCC
X0, Y0
VCC
VCC
50%
0
X1, X2, X3, Y1, Y2, Y3
VX0,
VY0
90%
MAX4782
VENABLE
ENABLE
X, Y
VOUT
GND
35pF
90%
VOUT
0
50Ω
tOFF
tON
VCC
A
B
C
VENABLE
VCC
VENABLE
X1, Y1, Z1
VCC
50%
0
VX0,
VY0,
VZ0
X0, Y0, Z0
MAX4783
ENABLE
VCC
X, Y, Z
VOUT
GND
35pF
50Ω
90%
90%
VOUT
VX1,
VY1,
VZ1
tOFF
TEST EACH SECTION INDIVIDUALLY.
Figure 1. Enable Switching Times
10
______________________________________________________________________________________
tON
High-Speed, Low-Voltage, 0.7Ω CMOS Analog
Switches/Multiplexers
VCC
VA, VB, VC
VA, VB, VC
VCC
A
X0
VCC
VCC
tR < 5ns
tF < 5ns
50%
0
B
C
VX0
MAX4781 X1–X7
90%
ENABLE
VOUT
X
GND
VOUT
35pF
10%
VX7
50Ω
tTRANS
tTRANS
VCC
VA, VB
VA, VB
VCC
A
B
X0, Y0
VCC
VCC
50%
0
X1, X2, Y1,
Y2, X3, Y3
VX0,
VY0
90%
MAX4782
ENABLE
X, Y
VOUT
GND
35pF
VOUT
10%
VX3,
VY3
50Ω
tTRANS
tTRANS
VCC
VA, VB, VC
VCC
X1, Y1, Z1
A
B
C
VA, VB, VC
50%
0
VX0,
VY0,
VZ0
MAX4783
X0, Y0, Z0
ENABLE
VCC
VCC
X, Y, Z
90%
VOUT
GND
35pF
50Ω
VOUT
VX1,
VY1,
VZ1
10%
tTRANS
tTRANS
TEST EACH SECTION INDIVIDUALLY.
Figure 2. Address Transition Times
______________________________________________________________________________________
11
MAX4781/MAX4782/MAX4783
Test Circuits/Timing Diagrams (continued)
High-Speed, Low-Voltage, 0.7Ω CMOS Analog
Switches/Multiplexers
MAX4781/MAX4782/MAX4783
Test Circuits/Timing Diagrams (continued)
VCC
VCC
VA, VB, VC
VA, VB
VCC
A
X0–X7
VCC
A
VCC
B
B
X0–X3,
Y0–Y3
VCC
C
MAX4782
MAX4781
ENABLE
VOUT
X
GND
ENABLE
VOUT
X, Y
GND
35pF
35pF
50Ω
50Ω
VCC
VCC
VA, VB, VC
V+
X0, X1, Y0,
Y1, Z0, Z1
A
B
VA, VB, VC
VCC
50%
tR < 5ns
tF < 5ns
0
C
VX, VY, VZ
MAX4783
ENABLE
90%
VOUT
X, Y, Z
GND
50Ω
35pF
VOUT
0
TEST EACH SECTION INDIVIDUALLY.
tBBM
Figure 3. Break-Before-Make Interval
VCC
VCC
VCC
X_, Y_, Z_
A
CHANNEL
SELECT
0
B
C
VENABLE
VENABLE
MAX4781
MAX4782
MAX4783
ENABLE
VOUT
X, Y, Z
GND
∆VOUT
VOUT
CL
1000pF
∆VOUT IS THE MEASURED VOLTAGE DUE TO CHARGETRANSFER ERROR Q WHEN THE CHANNEL TURNS OFF.
TEST EACH SECTION INDIVIDUALLY.
Q = ∆VOUT ✕ CL
Figure 4. Charge Injection
12
______________________________________________________________________________________
High-Speed, Low-Voltage, 0.7Ω CMOS Analog
Switches/Multiplexers
VCC 10nF
A
CHANNEL
SELECT
VCC
VIN
NETWORK
ANALYZER
50Ω
50Ω
X_, Y_, Z_
OFF-ISOLATION = 20log
VOUT
VIN
B
C
MAX4781
MAX4782
MAX4783
ENABLE
ON-LOSS = 20log
VOUT
X, Y, Z
MEAS.
REF.
CROSSTALK = 20log
GND
50Ω
50Ω
VOUT
VIN
VOUT
VIN
NOTES: 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" NO TERMINAL ON EACH SWITCH.
CROSSTALK IS MEASURED BETWEEN ADJACENT CHANNELS WITH ONE CHANNEL ON AND THE OTHER OFF.
SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
Figure 5. Off-Isolation, On-Loss, and Crosstalk
VCC
A
CHANNEL
SELECT
VCC
X_, Y_, Z_
B
C
ENABLE
MAX4781
MAX4782
MAX4783
GND
X, Y, Z
1MHz
CAPACITANCE
ANALYZER
Figure 6. Capacitance
Chip Information
TRANSISTOR COUNT: 659
PROCESS: CMOS
______________________________________________________________________________________
13
MAX4781/MAX4782/MAX4783
Test Circuits/Timing Diagrams (continued)
MAX4781/MAX4782/MAX4783
High-Speed, Low-Voltage, 0.7Ω CMOS Analog
Switches/Multiplexers
Pin Configurations/Functional Diagrams (continued)
TOP VIEW
Y
MAX4782
Y2
Y0
VCC
X2
16
15
14
13
1
12
2
11
X
Y1
3
10
X0
4
9
LOGIC
5
6
7
1
16
VCC
Y2
2
15
X2
Y
3
14
X1
Y3
4
13
X
Y1
5
12
X0
ENABLE
6
11
X3
N.C.
7
10
A
GND
8
9
B
X1
Y3
ENABLE
Y0
X3
8
LOGIC
MAX4782
N.C.
GND
B
A
3mm x 3mm THIN QFN
TSSOP
MAX4783
Z1
Y0
Y1
Vcc
Y
16
15
14
13
1
12
2
11
X1
Z0
3
10
X0
4
9
A
5
6
7
8
N.C.
GND
C
B
3mm X 3mm THIN QFN
14
1
Y0
MAX4783
16
VCC
2
15
Y
Z1
3
14
X
Z
4
13
X1
Z0
5
12
X0
ENABLE
6
11
A
N.C.
7
10
B
GND
8
9
C
X
Z
ENABLE
Y1
TSSOP
______________________________________________________________________________________
High-Speed, Low-Voltage, 0.7Ω CMOS Analog
Switches/Multiplexers
TSSOP4.40mm.EPS
______________________________________________________________________________________
15
MAX4781/MAX4782/MAX4783
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
12x16L QFN THIN.EPS
MAX4781/MAX4782/MAX4783
High-Speed, Low-Voltage, 0.7Ω CMOS Analog
Switches/Multiplexers
D2
0.10 M C A B
b
D
D2/2
D/2
E/2
E2/2
CL
(NE - 1) X e
E
E2
L
k
e
CL
(ND - 1) X e
CL
CL
0.10 C
0.08 C
A
A2
L
A1
L
e
e
PACKAGE OUTLINE
12, 16L, THIN QFN, 3x3x0.8mm
E
21-0136
PKG
12L 3x3
MIN.
NOM.
MAX.
MIN.
A
0.70
0.75
0.80
0.70
0.75
0.80
b
0.20
0.25
0.30
0.20
0.25
0.30
2.90
E
e
2.90
L
0.45
3.00
3.10
2.90
3.00
3.10
2.90
0.50 BSC.
0.55
NOM.
0.65
0.30
E2
D2
MIN.
NOM.
MAX.
MIN.
1.10
1.25
0.95
NOM. MAX.
PIN ID
JEDEC
DOWN
BONDS
ALLOWED
3.10
T1233-1
1.10
1.25
0.35 x 45∞
WEED-1
NO
3.00
3.10
T1233-3
0.95
1.10
1.25
0.95
1.10
1.25
0.35 x 45∞
WEED-1
YES
T1633-1
0.95
1.10
1.25
0.95
1.10
1.25
0.35 x 45∞
WEED-2
NO
0.40
12
16
3
4
NE
3
4
k
PKG.
CODES
3.00
N
0.50
0
0.02
0.05
0
0.02
0.05
0.25
0.20 REF
-
-
0.25
0.20 REF
-
-
A2
EXPOSED PAD VARIATIONS
MAX.
0.50 BSC.
ND
A1
2
16L 3x3
REF.
D
1
0.95
0.95
1.10
1.25
0.95
1.10
1.25
0.35 x 45∞
WEED-2
YES
T1633F-3
0.65
0.80
0.95
0.65
0.80
0.95
0.225 x 45∞ WEED-2
N/A
T1633-4
0.95
1.10
1.25
0.95
1.10
1.25
0.35 x 45∞
NO
T1633-2
WEED-2
NOTES:
1. DIMENSIONING & TOLERANCING CONFORM TO ASME Y14.5M-1994.
2. ALL DIMENSIONS ARE IN MILLIMETERS. ANGLES ARE IN DEGREES.
3. N IS THE TOTAL NUMBER OF TERMINALS.
4. THE TERMINAL #1 IDENTIFIER AND TERMINAL NUMBERING CONVENTION SHALL CONFORM TO
JESD 95-1 SPP-012. DETAILS OF TERMINAL #1 IDENTIFIER ARE OPTIONAL, BUT MUST BE LOCATED
WITHIN THE ZONE INDICATED. THE TERMINAL #1 IDENTIFIER MAY BE EITHER A MOLD OR
MARKED FEATURE.
5. DIMENSION b APPLIES TO METALLIZED TERMINAL AND IS MEASURED BETWEEN 0.20 mm AND 0.25 mm
FROM TERMINAL TIP.
6. ND AND NE REFER TO THE NUMBER OF TERMINALS ON EACH D AND E SIDE RESPECTIVELY.
7. DEPOPULATION IS POSSIBLE IN A SYMMETRICAL FASHION.
8. COPLANARITY APPLIES TO THE EXPOSED HEAT SINK SLUG AS WELL AS THE TERMINALS.
9. DRAWING CONFORMS TO JEDEC MO220 REVISION C.
PACKAGE OUTLINE
12, 16L, THIN QFN, 3x3x0.8mm
21-0136
E
2
2
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
© 2005 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products, Inc.