MAXIM MAX4618

19-1502; Rev 2; 3/02
High-Speed, Low-Voltage, CMOS Analog
Multiplexers/Switches
____________________________Features
The MAX4617/MAX4618/MAX4619 are high-speed, lowvoltage, CMOS analog ICs configured as an 8-channel
multiplexer (MAX4617), two 4-channel multiplexers
(MAX4618), and three single-pole/double-throw (SPDT)
switches (MAX4619).
These CMOS devices can operate continuously with a
+2V to +5.5V single supply. Each switch can handle
Rail-to-Rail® analog signals. The off-leakage current is
only 1nA at TA = +25°C and 10nA at TA = +85°C.
All digital inputs have 0.8V to 2.4V logic thresholds,
ensuring TTL/CMOS-logic compatibility when using a
single +5V supply.
♦ Fast Switching Times
15ns tON
10ns tOFF
♦ Pin Compatible with Industry-Standard
74HC4051/74HC4052/74HC4053 and
MAX4581/MAX4582/MAX4583
♦ Guaranteed On-Resistance
10Ω max (+5V Supply)
20Ω max (+3V Supply)
♦ Guaranteed 1Ω On-Resistance Match Between
Channels (single +5V supply)
♦ Guaranteed Low Off-Leakage Current:
1nA at +25°C
♦ Guaranteed Low On-Leakage Current:
1nA at +25°C
♦ +2V to +5.5V Single-Supply Operation
♦ TTL/CMOS-Logic Compatible
♦ Low Crosstalk: <-96dB
♦ High Off-Isolation: <-93dB
♦ Low Distortion: <0.017% (600Ω)
________________________Applications
Battery-Operated Equipment
Audio/Video Signal Routing
_______________Ordering Information
Low-Voltage Data-Acquisition Systems
Communications Circuits
PART
TEMP. RANGE
PIN-PACKAGE
MAX4617CUE
0°C to +70°C
16 TSSOP
MAX4617CSE
MAX4617CPE
0°C to +70°C
0°C to +70°C
16 Narrow SO
16 Plastic DIP
Ordering Information continued at end of data sheet.
____________________________________Pin Configurations/Functional Diagrams
TOP VIEW
MAX4618
MAX4617
MAX4619
X4 1
16 VCC
Y0 1
16 VCC
Y1 1
16 VCC
X6 2
15 X2
Y2 2
15 X2
Y0 2
15 Y
X 3
14 X1
Y 3
14 X1
Z1 3
14 X
X7 4
13 X0
Y3 4
13 X
Z 4
13 X1
12 X3
Y1 5
12 X0
Z0 5
12 X0
ENABLE 6
11 X3
ENABLE 6
11 A
10 A
N.C. 7
10 B
9
GND 8
9
X5 5
ENABLE 6
N.C. 7
11 A
LOGIC
GND 8
10 B
N.C. 7
9
GND 8
C
DIP/SO/TSSOP
LOGIC
DIP/SO/TSSOP
B
C
DIP/SO/TSSOP
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
________________________________________________________________ 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
MAX4617/MAX4618/MAX4619
________________General Description
MAX4617/MAX4618/MAX4619
High-Speed, Low-Voltage, CMOS Analog
Multiplexers/Switches
ABSOLUTE MAXIMUM RATINGS
Voltages Referenced to GND
VCC, A, B, C, or Enable...........................................-0.3V to +6V
Voltage into Any Analog Terminal
(Note 1) .........................................................-0.3V to (VCC + 0.3V)
Continuous Current into Any Terminal..............................±75mA
Peak Current, X_, Y_, Z_
(pulsed at 1ms, 10% duty cycle) .................................±200mA
Continuous Power Dissipation (TA = +70°C)
TSSOP (derate 6.7mW/°C above +70°C)......................533mW
16-Pin QFN (derate 18.5mW/°C above +70°C)...........1481mW
Narrow SO (derate 8.70mW/°C above +70°C)..............696mW
Plastic DIP (derate 10.53mW/°C above +70°C) ..............842mW
Operating Temperature Ranges
MAX461_C_ _ ......................................................0°C to +70°C
MAX461_E_ _ ....................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
Note 1: Voltages exceeding VCC or GND on any analog 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—Single +5V Supply
(VCC = +4.5V to +5.5V, V_H = 2.4V, V_L = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
ANALOG SWITCH
Analog-Signal Range
VX, VY, VZ
CONDITIONS
MIN
C, E
VCC = 4.5V; IX, IY, IZ = 10mA;
VX, VY, VZ = 3V
TA = +25°C
TA = +25°C
Switch On-Resistance
RON
Switch On-Resistance
Match Between
Channels (Notes 3,7)
∆RON
VCC = 5V; IX, IY, IZ = 10mA;
VX, VY, VZ = 3V
Switch On-Resistance
Flatness (Note 4)
RFLAT(ON)
VCC = 5V; IX, IY, IZ = 10mA;
VX, VY, VZ = 1V, 2V, 3V
X_, Y_, Z_
Off-Leakage Current
(Note 5)
IX_(OFF),
IY_(OFF),
IZ_(OFF)
VCC = 5.5V; VX_, VY_, VZ_ = 4.5V, 1V;
VX, VY, VZ = 1V, 4.5V
X, Y, Z Off-Leakage
Current (Note 5)
IX(OFF),
IY(OFF),
IZ(OFF)
VCC = 5.5V; VEE = -5.5V;
VX_, VY_, VZ_ = 4.5V, 1V;
VX, VY, VZ = 1V, 4.5V
X, Y, Z On-Leakage
Current (Note 5)
IX(ON),
IY(ON),
IZ(ON)
VCC = 5.5V; VX, VY, VZ = 1V, 4.5V;
VX_, VY_, VZ_ = 1V, 4.5V or floating
TYP
0
MAX UNITS
VCC
8
C, E
10
13
0.2
1
C, E
1.2
C, E
1
TA = +25°C
-1
C, E
-10
TA = +25°C
-1
C, E
-10
TA = +25°C
-1
C, E
-10
2.4
0.002
V
Ω
Ω
Ω
1
nA
10
0.002
1
nA
10
0.002
1
nA
10
DIGITAL I/O
Input Voltage High
VAH, VBH,
VCH,
VENABLEH
C, E
Input Voltage Low
VAL, VBL,
VCL,
VENABLEL
C, E
2
_______________________________________________________________________________________
V
0.8
V
High-Speed, Low-Voltage, CMOS Analog
Multiplexers/Switches
(VCC = +4.5V to +5.5V, V_H = 2.4V, V_L = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS
Input Current High
IAH, IBH,
ICH,
IENABLE
VA, VB, VC = VENABLE = VCC
C, E
-1
0.0003
1
µA
Input Current Low
IAL, IBL,
ICL,
IENABLE
VA, VB, VC = VENABLE = 0
C, E
-1
0.0003
1
µA
SWITCH DYNAMIC CHARACTERISTICS
Enable Turn-On Time
(Note 6)
tON
VX_, VY_, VZ_ = 3V; RL = 300Ω; CL = 35pF;
Figure 3
TA = +25°C
Enable Turn-Off Time
(Note 6)
tOFF
VX_, VY_, VZ_ = 3V; RL = 300Ω; CL = 35pF;
Figure 3
TA = +25°C
Address Transition Time
(Note 6)
tTRANS
VX_, VY_, VZ_ = 3V; RL = 300Ω; CL = 35pF;
Figure 2
TA = +25°C
Break-Before-Make Time
(Note 6)
tBBM
VX_, VY_, VZ_ = 3V; RL = 300Ω; CL = 35pF;
Figure 4
TA = +25°C
C = 1nF, RS = 0, VS = 0, Figure 5
Charge Injection
Q
Input Off-Capacitance
CX_(OFF),
CY_(OFF),
CZ_(OFF)
VX_, VY_, VZ_ = 0; f = 1MHz; Figure 7
Output Off-Capacitance
CX(OFF),
CY(OFF),
CZ(OFF)
VX_, VY_, VZ_ = 0; f = 1MHz;
Figure 7
CX(ON),
CY(ON),
CZ(ON)
VX_, VY_, VZ_ = 0; f = 1MHz;
Figure 7
Output On-Capacitance
7
C, E
4.5
C, E
7
C, E
15
18
0.2
ns
ns
ns
1.5
ns
TA = +25°C
3
pC
TA = +25°C
5
pF
TA = +25°C
15
27
MAX4619
8.5
MAX4617
32
MAX4618
10
13
MAX4617
MAX4618
15
18
pF
21
TA = +25°C
MAX4619
pF
15.5
Off-Isolation
VISO
RL = 50Ω, f = 100kHz, Figure 6
TA = +25°C
-93
dB
Channel-to-Channel
Crosstalk
VCT
RL = 50Ω, f = 100kHz, Figure 6
TA = +25°C
-96
dB
Total Harmonic
Distortion
THD
RL = 600Ω, 1Vp-p, f = 20Hz to 20kHz
TA = +25°C
0.017
%
POWER SUPPLY
Power-Supply Range
Power-Supply Current
VCC
C, E
+2
+5.5
V
ICC
TA = +25°C
C, E
-1
-10
1
10
µA
VCC = 5.5V; VA, VB, VC, VENABLE = VCC or 0
_______________________________________________________________________________________
3
MAX4617/MAX4618/MAX4619
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
MAX4617/MAX4618/MAX4619
High-Speed, Low-Voltage, CMOS Analog
Multiplexers/Switches
ELECTRICAL CHARACTERISTICS—Single +3.3V Supply
(VCC = +3V to +3.6V, V_H = 2.0V, V_L = 0.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS
ANALOG SWITCH
Analog-Signal Range
VX_, VY_, VZ_,
VX, VY, VZ
Switch On-Resistance
RON
X_, Y_, Z_ Off-Leakage
Current (Note 5)
IX_(OFF),
IY_(OFF),
IZ_(OFF)
VCC = 3.6V; VX_, VY_, VZ_ = 1V, 3V;
VX, VY, VZ = 3V, 1V
X, Y, Z Off-Leakage
Current (Note 6)
IX(OFF),
IY(OFF),
IZ(OFF)
VCC = 3.6V; VX_, VY_, VZ_ = 1V, 3V;
VX, VY, VZ = 3V, 1V
X, Y, Z On-Leakage
Current (Note 6)
IX(ON),
IY(ON),
IZ(ON)
VCC = 3.6V; VX, VY, VZ = 3V, 1V;
VX_, VY_, VZ_ = 3V, 1V, or floating
C, E
VCC = 3V; IX, IY, IZ = 10mA;
VX, VY, VZ = 1.5V
0
VCC
V
8
20
25
Ω
0.002
1
TA = +25°C
C, E
TA = +25°C
-1
C, E
-10
TA = +25°C
-1
C, E
-10
TA = +25°C
-1
C, E
-10
2.0
nA
10
0.002
1
nA
10
0.002
1
nA
10
DIGITAL I/O
Input Voltage High
VAH, VBH, VCH,
VENABLEH
C, E
Input Voltage Low
VAL, VBL, VCL,
VENABLEL
C, E
Input Current High
IAH, IBH, ICH,
IENABLEH
VA, VB, VC = VENABLE = VCC
C, E
-1
Input Current Low
IAL, IBL, ICL,
IENABLEL
VA, VB, VC = VENABLE = 0
C, E
-1
V
0.5
V
0.0003
1
µA
0.0003
1
µA
9
20
25
15
20
20
25
SWITCH DYNAMIC CHARACTERISTICS
Enable Turn-On Time
(Note 6)
tON
VX_, VY_, VZ_ = 1.5V; RL = 300Ω;
CL = 35pF; Figure 3
Enable Turn-Off Time
(Note 6)
tOFF
VX_, VY_, VZ_ = 1.5V; RL = 300Ω;
CL = 35pF; Figure 3
tTRANS
VX_, VY_, VZ_ = 1.5V/0; RL = 300Ω;
CL = 35pF; Figure 2
Address Transition
Time (Note 6)
Break-Before-Make Time
(Note 6)
Charge Injection
(Note 6)
tBBM
Q
TA = +25°C
C, E
TA = +25°C
C, E
TA = +25°C
C, E
VX_, VY_, VZ_ = 1.5V; RL = 300Ω; CL = 35pF TA = +25°C
6
9
0.2
ns
ns
ns
1.5
ns
3
pC
C = 1nF, RS = 0, VS = 0, Figure 5
TA = +25°C
VCC = 3.6V,
VA, VB, VC, VENABLE = VCC or 0
TA = +25°C
1
C, E
10
POWER SUPPLY
Power-Supply Current
4
ICC
_______________________________________________________________________________________
µA
High-Speed, Low-Voltage, CMOS Analog
Multiplexers/Switches
(VCC = +2.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS
ANALOG SWITCH
Switch On-Resistance
RON
VCC = 2.5V; IX, IY, IZ = 10mA;
VX, VY, VZ = 1.2V
TA = +25°C
30
C, E
60
Ω
100
SWITCH DYNAMIC CHARACTERISTICS
Enable Turn-On Time
(Note 6)
tON
VX_, VY_, VZ_ = 1V; RL = 300Ω;
CL = 35pF; Figure 3
TA = +25°C
12
ns
Enable Turn-Off Time
(Note 6)
tOFF
VX_, VY_, VZ_ = 1V; RL = 300Ω;
CL = 35pF; Figure 3
TA = +25°C
10
ns
tTRANS
VX_, VY_, VZ_ = 1V; RL = 300Ω;
CL = 35pF; Figure 3
TA = +25°C
12
ns
Address Transition
Time (Note 6)
Note 2: The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.
Note 3: ∆RON = RON(MAX) - RON(MIN).
Note 4: 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., VX_, VY_, VZ_ = 3V to 0 and 0 to -3V.
Note 5: Leakage parameters are 100% tested at maximum-rated hot operating temperature, and guaranteed by correlation at TA = +25°C.
Note 6: Guaranteed by design, not production tested.
Note 7: ∆RON matching specifications for QFN-packaged parts are guaranteed by design.
_______________________________________________________________________________________
5
MAX4617/MAX4618/MAX4619
ELECTRICAL CHARACTERISTICS—Single +2.5V Supply
Typical Operating Characteristics
(VCC = +5V, GND = 0, TA = +25°C, unless otherwise noted.)
ON-RESISTANCE vs.
VX, VY, VZ AND TEMPERATURE
VCC = +2V
4.5
4.0
RON (Ω)
VCC = +2.5V
VCC = +3V
10
3.0
TA = +85°C
TA = +70°C
TA = +25°C
TA = 0°C
TA = -40°C
2.5
2.0
1.5
VCC = +5V
100
OFF-LEAKAGE (pA)
3.5
15
1000
MAX4617 toc02
20
OFF-LEAKAGE vs. TEMPERATURE
5.0
MAX4617 toc01
25
IX, IY, IZ
10
1
1.0
5
MAX4617 toc03
ON-RESISTANCE vs. VX, VY, VZ
ON-RESISTANCE (Ω)
IX_, IY_, IZ_
0.1
0.5
0
0
0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
-40
-20
VX, VY, VZ (V)
0
20
40
60
TEMPERATURE (°C)
ON-LEAKAGE vs. TEMPERATURE
CHARGE INJECTION vs. VX, VY, VZ
18
CHARGE INJECTION (pC)
10
1
MAX4617 toc05
20
MAX4617 toc04
100
ON-LEAKAGE (pA)
0.01
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
VX, VY, VZ (V)
16
14
12
10
8
6
4
2
0.1
0
-40
-20
0
20
40
60
80
100
0
VX, VY, VZ (V)
SUPPLY CURRENT vs. TEMPERATURE
SUPPLY CURRENT vs.
LOGIC VOLTAGE
2.0
ICC (mA)
1000
100
MAX4617 toc07
2.5
MAX4617 toc06
VA, VB, VC, VENABLE = 0, 5V
VCC = +5V
1.5
1.0
10
VCC = +3V
0.5
1
VCC = +2V
0
-40
-20
0
20
40
60
TEMPERATURE (°C)
6
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
TEMPERATURE (°C)
10,000
ICC (pA)
MAX4617/MAX4618/MAX4619
High-Speed, Low-Voltage, CMOS Analog
Multiplexers/Switches
80
100
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
VA, VB, VC, VENABLE (V)
_______________________________________________________________________________________
80
100
High-Speed, Low-Voltage, CMOS Analog
Multiplexers/Switches
INPUT HIGH LOGIC THRESHOLD
vs. SUPPLY VOLTAGE
FREQUENCY RESPONSE
MAX4617 toc09
144
108
-20
1.6
-30
1.4
180
ON-LOSS
-10
72
IN = OUT = 50Ω
36
-40
ON-PHASE
-50
1.2
0
-60
-36
-70
-72
-80
-108
OFF-ISOLATION
-144
-90
-180
-100
1.0
2.0
2.5
3.0
3.5
4.0
4.5
10k
5.0
100k
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
THD (%)
VCC = +3.3V,
1Vp-p SIGNAL
0.010
100M
500M
SWITCHING TIME vs. VOLTAGE
VCC = +5V,
1Vp-p SIGNAL
IN = OUT = 600Ω
MAX4617 toc11
12
SWITCHING TIMES (ns)
VCC = 2.5V,
1Vp-p SIGNAL
VCC = +3V,
1Vp-p SIGNAL
10M
14
MAX4617 toc10
0.025
0.015
1M
FREQUENCY (Hz)
VCC (V)
0.020
PHASE (°)
MAX4617 toc08
0
GAIN (dB)
VA, VB, VC, VENABLE (V)
1.8
10
8
6
4
0.005
2
0
0
0
2
4
6
8
10 12 14 16 18 20
FREQUENCY (kHz)
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
V+ (V)
_______________________________________________________________________________________
7
MAX4617/MAX4618/MAX4619
Typical Operating Characteristics (continued)
(VCC = +5V, GND = 0, TA = +25°C, unless otherwise noted.)
High-Speed, Low-Voltage, CMOS Analog
Multiplexers/Switches
MAX4617/MAX4618/MAX4619
Pin Description
PIN
NAME
MAX4617
MAX4618
MAX4619
13, 14, 15,
12, 1, 5, 2, 4
—
—
X0–X7
3
—
—
—
—
—
—
—
12, 14, 15, 11
13
—
—
—
—
—
—
14
13
12
1
2
X
X0, X1, X2, X3
X
X1
X0
Y1
Y0
6
6
6
ENABLE
7
8
11
10
9
—
—
—
—
—
16
7
8
10
9
—
1, 5, 2, 4
3
—
—
—
16
7
8
11
10
9
—
15
5
3
4
16
N.C.
GND
A
B
C
Y0, Y1, Y2, Y3
Y
Z0
Z1
Z
VCC
FUNCTION
Analog Switch Inputs 0–7
Analog Switch Output
Analog Switch “X” Inputs 0–3
Analog Switch “X” Output
Analog Switch “X” Normally Open Input
Analog Switch “X” Normally Closed Input
Analog Switch “Y” Normally Open Input
Analog Switch “Y” Normally Closed Input
Digital Enable Input. Normally connect to GND. Can be driven
to logic high to set all switches off.
No Connection. Not Internally connected.
Ground
Digital Address “A” Input
Digital Address “B” Input
Digital Address “C” Input
Analog Switch “Y” Inputs 0–3
Analog Switch “Y” Output
Analog Switch “Z” Normally Closed Input
Analog Switch “Z” Normally Open Input
Analog Switch “Z” Output
Positive Analog and Digital Supply Voltage Input
Note: Input and output pins are identical and interchangeable. Any may be considered an input or output; signals pass equally well
in both directions.
__________Applications Information
Power-Supply Considerations
Overview
The MAX4617/MAX4618/MAX4619 construction is typical of most CMOS analog switches. They have two supply pins: VCC and GND. VCC and GND are used to 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 analogsignal pin and both VCC and GND. If any analog signal
exceeds VCC or GND, one of these diodes conducts.
During normal operation, these and other reversebiased ESD diodes leak, forming the only current drawn
from VCC or GND.
8
Virtually all 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
VCC or GND and the analog signal. This means their
leakages will vary as the signal varies. The difference in
the two diode leakages to the VCC and GND pins 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.
This is why 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-Speed, Low-Voltage, CMOS Analog
Multiplexers/Switches
Power Supply
These devices operate from a single supply between
+2.5V and +5.5V. All of the bipolar precautions must be
observed. At room temperature, they actually “work”
with a single supply near or below +2V, although as
supply voltage decreases, switch on-resistance
becomes very high.
Overvoltage Protection
Proper power-supply sequencing is recommended for
all CMOS devices. Do not exceed the absolute maximum ratings because stresses beyond the listed ratings can cause permanent damage to the devices.
Always sequence VCC on first, followed by the logic
inputs and analog signals. If power-supply sequencing
is not possible, add two small signal diodes (D1, D2) in
series with the supply pins for overvoltage protection
(Figure 1).
Adding diodes reduces the analog-signal range to one
diode drop below V CC and one diode drop above
GND, but does not affect the devices’ low switch resistance and low leakage characteristics. Device operation is unchanged, and the difference between VCC
and GND should not exceed 6V. These protection
diodes are not recommended if signal levels must
extend to ground.
Pin Nomenclature
The MAX4617/MAX4618/MAX4619 are pin compatible
with the industry-standard 74HC4051/74HC4052/
74HC4053 and the MAX4581/MAX4582/MAX4583. 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
(including the MAX4051/MAX4052/MAX4053) and may
cause confusion. Designers who feel more comfortable
with Maxim’s standard designations are advised that
the pin designations and logic diagrams on the
MAX4051/MAX4052/MAX4053 data sheet may be freely
applied to the MAX4617/MAX4618/MAX4619.
VCC
D1
EXTERNAL
BLOCKING DIODE
MAX4617
MAX4618
MAX4619
VCC
*
*
X, Y, Z
X_, Y_, Z_
*
*
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 turning the switch on, but turning it off. The off-state
switch acts like a capacitor and passes higher frequencies with less attenuation. At 10MHz, off-isolation is
about -50dB in 50Ω systems, becoming worse (approximately 20dB per decade) as frequency increases.
Higher circuit impedances also degrade off-isolation.
Adjacent channel attenuation is about 3dB above that
of a bare IC socket and is entirely due to capacitive
coupling.
VEE
D2
EXTERNAL
BLOCKING DIODE
GND
*INTERNAL PROTECTION DIODES
Figure 1. Overvoltage Protection Using External Blocking
Diodes
_______________________________________________________________________________________
9
MAX4617/MAX4618/MAX4619
The logic-level thresholds are TTL/CMOS compatible
when VCC is +5V. As VCC rises, the threshold increases; as VCC falls, the threshold decreases. For example,
when VCC = +3V the guaranteed minimum logic-high
threshold decreases to 2.0V
MAX4617/MAX4618/MAX4619
High-Speed, Low-Voltage, CMOS Analog
Multiplexers/Switches
Table 1. Truth Table/Switch Programming
SELECT INPUTS
ON SWITCHES
ENABLE
INPUT
C*
B
A
MAX4617
MAX4618
MAX4619
H
X
X
X
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
X = Don’t care
*C not present on MAX4618.
Note: Input and output pins are identical and interchangeable. Either may be considered an input or output; signals pass equally
well in either direction.
10
______________________________________________________________________________________
High-Speed, Low-Voltage, CMOS Analog
Multiplexers/Switches
VCC
VA, VB, VC
A
50Ω
VA, VB, VC
VCC
X0
VCC
VCC
50%
0
B
C
VX0
MAX4617 X1–X7
90%
ENABLE
VOUT
X
GND
0
VOUT
35pF
90%
VX7
300Ω
tTRANS
tTRANS
VCC
V A, V B
VA, VB
VCC
A
B
X0, Y0
VCC
MAX4618
ENABLE
50%
0
X1, X2, Y1,
Y2. X3, Y3
50Ω
VCC
VX0,
VY0
X, Y
VOUT
GND
35pF
90%
0
VOUT
90%
VX3,
VY3
300Ω
tTRANS
tTRANS
VCC
VA, VB, VC
VCC
VA, VB, VC
X1, Y1, Z1
A, B, C
50%
0
VX0,
VY0,
VZ0
50Ω
MAX4619
X2, Y2, Z2
ENABLE
VCC
VCC
X, Y, Z
0
VOUT
GND
35pF
300Ω
90%
VOUT
VX1,
VY1,
VZ1
90%
tTRANS
tTRANS
TEST EACH SECTION INDIVIDUALLY.
Figure 2. Address Transition Times
______________________________________________________________________________________
11
MAX4617/MAX4618/MAX4619
______________________________________________Test Circuits/Timing Diagrams
MAX4617/MAX4618/MAX4619
High-Speed, Low-Voltage, CMOS Analog
Multiplexers/Switches
_________________________________Test Circuits/Timing Diagrams (continued)
VCC
VENABLE
VCC
A
X0
B
VCC
VCC
50%
0
X1–X7
VX0
C
90%
MAX4617
VENABLE
ENABLE
VOUT
X
GND
VOUT
90%
35pF
50Ω
0
300Ω
tOFF
tON
VCC
VENABLE
VCC
A
B
X0, Y0
VCC
VCC
50%
0
X1–X3, Y1–Y3
VX0,
VY0
90%
MAX4618
VENABLE
ENABLE
X, Y
VOUT
GND
35pF
50Ω
VOUT
90%
0
300Ω
tOFF
tON
VCC
VCC
A
B
C
VENABLE
X1, Y1, Z1
VCC
VX0,
VY0,
VZ0
X0, Y0, Z0
ENABLE
X, Y, Z
VOUT
GND
50Ω
50%
0
MAX4619
VENABLE
VCC
35pF
300Ω
90%
VOUT
90%
VX1,
VY1,
VZ1
tON
TEST EACH SECTION INDIVIDUALLY.
Figure 3. Enable Switching Times
12
______________________________________________________________________________________
tOFF
High-Speed, Low-Voltage, CMOS Analog
Multiplexers/Switches
VCC
VCC
V A, V B, V C
50Ω
VA, VB
VCC
A
X0–X7
VCC
A
VCC
B
B
50Ω
X0–X3,
Y0–Y3
VCC
C
MAX4618
MAX4617
ENABLE
VOUT
X
GND
ENABLE
X, Y
VOUT
GND
35pF
35pF
300Ω
300Ω
VCC
V A, V B, V C
VCC
X0, X1, Y0,
Y1, Z0, Z1
A, B, C
tR < 20ns
tF < 20ns
V+
VA, VB, VC
VCC
50%
0
50Ω
VX, VY, VZ
MAX4619
80%
ENABLE
X, Y, Z
VOUT
GND
35pF
300Ω
VOUT
0
TEST EACH SECTION INDIVIDUALLY.
tBBM
Figure 4. Break-Before-Make Interval
VCC
VCC
VCC
X_, Y_, Z_
A
CHANNEL
SELECT
VENABLE
0
B
C
VENABLE
MAX4617
MAX4618
MAX4619
ENABLE
VOUT
X, Y, Z
GND
50Ω
∆ 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 5. Charge Injection
______________________________________________________________________________________
13
MAX4617/MAX4618/MAX4619
_________________________________Test Circuits/Timing Diagrams (continued)
MAX4617/MAX4618/MAX4619
High-Speed, Low-Voltage, CMOS Analog
Multiplexers/Switches
_________________________________Test Circuits/Timing Diagrams (continued)
VCC 10nF
A
CHANNEL
SELECT
VCC
VIN
NETWORK
ANALYZER
50Ω
50Ω
X_, Y_, Z_
OFF-ISOLATION = 20log
MAX4617
MAX4618
MAX4619
ENABLE
ON-LOSS = 20log
VOUT
X, Y, Z
MEAS.
REF.
CROSSTALK = 20log
GND
50Ω
50Ω
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 (MAX4618/MAX4619) IS MEASURED FROM ONE CHANNEL (A, B, C) TO ALL OTHER CHANNELS.
SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
Figure 6. Off-Isolation, On-Loss, and Crosstalk
VCC
A
VCC
X_, Y_, Z_
B
C
ENABLE
MAX4617
MAX4618
MAX4619
GND
X, Y, Z
1MHz
CAPACITANCE
ANALYZER
Figure 7. Capacitance
14
VIN
B
C
CHANNEL
SELECT
VOUT
______________________________________________________________________________________
VOUT
VIN
VOUT
VIN
High-Speed, Low-Voltage, CMOS Analog
Multiplexers/Switches
MAX4617EGD
MAX4617EUE
MAX4617ESE
MAX4617EPE
MAX4618CUE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
16 QFN
16 TSSOP
16 Narrow SO
16 Plastic DIP
16 TSSOP
MAX4618CSE
MAX4618CPE
MAX4618EGD
MAX4618EUE
MAX4618ESE
MAX4618EPE
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
-40°C to +85°C
16 Narrow SO
16 Plastic DIP
16 QFN
16 TSSOP
16 Narrow SO
16 Plastic DIP
MAX4619CUE
MAX4619CSE
MAX4619CPE
MAX4619EGD
MAX4619EUE
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
16 TSSOP
16 Narrow SO
16 Plastic DIP
16 QFN
16 TSSOP
MAX4619ESE
-40°C to +85°C
16 Narrow SO
MAX4619EPE
-40°C to +85°C
16 Plastic DIP
___________________Chip Information
TRANSISTOR COUNT: 244
______________________________________________________________________________________
15
MAX4617/MAX4618/MAX4619
_Ordering
Information
(continued)
PART
TEMP RANGE
PIN-PACKAGE
________________________________________________________Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
TSSOP.EPS
MAX4617/MAX4618/MAX4619
High-Speed, Low-Voltage, CMOS Analog
Multiplexers/Switches
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.
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© 2002 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.