Maxim MAX4738 4.5î© quad spst analog switches in ucsp Datasheet

MAX4737/MAX4738/
MAX4739
4.5Ω Quad SPST Analog Switches in UCSP
General Description
The MAX4737/MAX4738/MAX4739 low-voltage, low onresistance (RON), quad single-pole/single throw (SPST)
analog switches operate from a single +1.8V to +5.5V
supply. These devices are designed for USB 1.1 and
audio switching applications.
The MAX4737/MAX4738/MAX4739 feature 4.5Ω RON
(max) with 1.2Ω flatness and 0.4Ω matching between
channels. These new switches feature guaranteed
operation from +1.8V to +5.5V and are fully specified
at 3V and 5V. These switches offer break-before-make
switching (1ns) with tON <80ns and tOFF <40ns at +2.7V.
The digital logic inputs are +1.8V logic compatible with a
+2.7V to +3.6V supply.
These switches are packaged in a chip-scale package
(UCSP™), significantly reducing the required PC board
area. The chip occupies only a 2mm x 2mm area and has
a 4 x 4 bump array with a bump pitch of 0.5mm. These
switches are also available in a 14-pin TSSOP and a
16-pin thin QFN (4mm x 4mm) package.
Applications
●●
●●
●●
●●
●●
●●
Battery-Operated Equipment
Audio/Video-Signal Routing
Low-Voltage Data-Acquisition Systems
Sample-and-Hold Circuits
Data-Acquisition Systems
Communications Circuits
UCSP is a trademark of Maxim Integrated Products, Inc.
19-2633; Rev 2; 1/16
Benefits and Features
●● USB 1.1 Signal Switching
●● 2ns (max) Differential Skew
●● -3dB Bandwidth: >300MHz
●● Low 20pF On-Channel Capacitance
●● Low RON
• 4.5Ω (max) (+3V Supply)
• 3Ω (max) (+5V Supply)
●● 0.4Ω (max) RON Match (+3V Supply)
●● 1.2Ω (max) RON Flatness (+3V Supply)
●● <0.5nA Leakage Current at +25°C
●● High Off-Isolation: -55dB (10MHz)
●● Low Crosstalk: -80dB (10MHz)
●● Low Distortion: 0.03%
●● +1.8V CMOS-Logic Compatible
●● Single-Supply Operation from +1.8V to +5.5V
●● Rail-to-Rail Signal Handling
MAX4737/MAX4738/
MAX4739
4.5Ω Quad SPST Analog Switches in UCSP
Absolute Maximum Ratings
(All Voltages Referenced to GND)
V+, IN_..................................................................-0.3V to +6.0V
COM_, NO_, NC_ (Note 1)..........................-0.3V to (V+ + 0.3V)
Continuous Current COM_, NO_, NC_...........................±100mA
Peak Current COM_, NO_, NC_
(pulsed at 1ms, 10% duty cycle).................................±200mA
Continuous Power Dissipation (TA = +70°C)
14-Pin TSSOP (derate 6.3mW/°C above +70°C).........500mW
16-Bump UCSP (derate 8.3mW/°C above +70°C).......659mW
16-Pin Thin QFN (derate 25mW/°C above +70°C)....2000mW
ESD Method 3015.7.............................................................>2kV
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
Bump Temperature (soldering)
Infrared (15s)................................................................+220°C
Vapor Phase (60s)........................................................ +215°C
Note 1: Signals on COM_, NO_, or NC_ exceeding V+ 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
(V+ = +2.7V to +3.6V, VIH = +1.4V, VIL = +0.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = +3.0V,
TA = +25°C, unless otherwise noted.) (Notes 3, 4)
PARAMETER
Analog Signal Range
SYMBOL
CONDITIONS
TA
VCOM_,
VNO_, VNC_
MIN
TYP
0
MAX
UNITS
V+
V
ANALOG SWITCH
On-Resistance (Note 5)
On-Resistance Match Between
Channels (Notes 5, 6)
RON
V+ = 2.7V, ICOM_ = 10mA;
VNO_ or VNC_ = 1.5V
∆RON
V+ = 2.7V, ICOM_ = 10mA;
VNO_ or VNC_ = 1.5V
On-Resistance Flatness (Note 7)
RFLAT(ON)
V+ = 2.7V, ICOM_ = 10mA;
VNO_ or VNC_ = 1.0V, 1.5V, 2.0V
NO_, NC_ Off-Leakage Current
(Note 8)
INO_(OFF),
INC_(OFF)
V+ = 3.6V, VCOM_ = 0.3V, 3.3V;
VNO_ or VNC_ = 3.3V, 0.3V
ICOM_( OFF)
V+ = 3.6V, VCOM_ = 0.3V, 3.3V;
VNO_ or VNC_ = 3.3V, 0.3V
ICOM_(ON)
V+ = 3.6V, VCOM_ = 0.3V, 3.3V;
VNO_ or VNC_ = 0.3V, 3.3V, or
floating
COM_ Off-Leakage Current
(Note 8)
COM_ On-Leakage Current
(Note 8)
www.maximintegrated.com
+25°C
3.0
TMIN to
TMAX
4.5
5
+25°C
0.1
TMIN to
TMAX
0.4
0.5
+25°C
0.6
TMIN to
TMAX
-0.5
TMIN to
TMAX
-1
+25°C
-0.5
TMIN to
TMAX
-1
+25°C
-1
TMIN to
TMAX
-2
+0.01
nA
+0.5
+1
+0.01
Ω
+0.5
+1
+0.01
Ω
1.2
1.5
+25°C
Ω
nA
+1
+2
nA
Maxim Integrated │ 2
MAX4737/MAX4738/
MAX4739
4.5Ω Quad SPST Analog Switches in UCSP
Electrical Characteristics—Single +3V Supply (continued)
(V+ = +2.7V to +3.6V, VIH = +1.4V, VIL = +0.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = +3.0V,
TA = +25°C, unless otherwise noted.) (Notes 3, 4)
PARAMETER
SYMBOL
CONDITIONS
TA
MIN
TYP
MAX
40
80
UNITS
DYNAMIC CHARACTERISTICS
Turn-On Time
Turn-Off Time
Break-Before-Make Time Delay
(MAX4739 Only) (Note 8)
Skew (Note 8)
Charge Injection
Off-Isolation (Note 9)
Crosstalk (Note 10)
+25°C
tON
VNO_, VNC_ = 1.5V;
RL = 300Ω, CL = 35pF, Figure 1
tOFF
VNO_, VNC_ = 1.5V;
RL = 300Ω, CL = 35pF, Figure 1
tBBM
VNO_, VNC_ = 1.5V;
RL = 300Ω, CL = 35pF, Figure 2
tSKEW
RS = 39Ω, CL = 50pF, Figure 3
TMIN to
TMAX
0.15
VGEN = 2V, RGEN = 0Ω,
CL = 1.0nF, Figure 4
+25°C
5
Q
VISO
VCT
f = 10MHz; VNO_, VNC_ = 1VP-P;
RL = 50Ω, CL = 5pF, Figure 5a
f = 1MHz; VNO_, VNC_ = 1VP-P;
RL = 50Ω, CL = 5pF, Figure 5a
f = 10MHz; VNO_, VNC_ = 1VP-P;
RL = 50Ω, CL = 5pF, Figure 5b
f = 1MHz; VNO_, VNC_ = 1VP-P;
RL = 50Ω, CL = 5pF, Figure 5b
TMIN to
TMAX
100
+25°C
20
TMIN to
TMAX
TMIN to
TMAX
40
50
+25°C
ns
ns
8
ns
1
2
ns
pC
-55
+25°C
dB
-80
-80
+25°C
dB
-110
On-Channel -3dB Bandwidth
BW
Signal = 0dBm, CL = 5pF, 50Ω in
and out, Figure 5a
+25°C
300
MHz
Total Harmonic Distortion
THD
RL = 600Ω
+25°C
0.03
%
+25°C
9
pF
+25°C
15
pF
NO_, NC_ Off-Capacitance
Switch On-Capacitance
CNO_(OFF),
f = 1MHz, Figure 6
CNC_(OFF)
CON
f = 1MHz, Figure 6
DIGITAL I/O
Input Logic High Voltage
VIH
TMIN to
TMAX
Input Logic Low Voltage
VIL
TMIN to
TMAX
Input Leakage Current
IIN
www.maximintegrated.com
V+ = 3.6V, VIN_ = 0 or 5.5V
TMIN to
TMAX
1.4
-0.1
V
0.5
V
+0.1
µA
Maxim Integrated │ 3
MAX4737/MAX4738/
MAX4739
4.5Ω Quad SPST Analog Switches in UCSP
Electrical Characteristics—Single +3V Supply (continued)
(V+ = +2.7V to +3.6V, VIH = +1.4V, VIL = +0.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = +3.0V,
TA = +25°C, unless otherwise noted.) (Notes 3, 4)
PARAMETER
SYMBOL
CONDITIONS
TA
MIN
TMIN to
TMAX
1.8
TYP
MAX
UNITS
5.5
V
1
µA
SUPPLY
Supply Voltage Range
V+
Positive Supply Current
I+
V+ = 5.5V, VIN_ = 0V or V+
TMIN to
TMAX
Electrical Characteristics—Single +5V Supply
(V+ = +4.2V to +5.5V, VIH = +2.0V, VIL = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = +5.0V,
TA = +25°C, unless otherwise noted.) (Notes 3, 4)
PARAMETER
Analog Signal Range
SYMBOL
CONDITIONS
VCOM_,
VNO_, VNC_
TA
MIN
TMIN to
TMAX
0
TYP
MAX
UNITS
V+
V
ANALOG SWITCH
On-Resistance (Note 5)
RON
V+ = 4.2V; ICOM_ = 10mA;
VNO_ or VNC_ = 3.5V
On-Resistance Match Between
Channels (Notes 5, 6)
∆RON
V+ = 4.2V; ICOM_ = 10mA;
VNO_ or VNC_ = 3.5V
On-Resistance Flatness (Note 7)
RFLAT(ON)
V+ = 4.2V; ICOM_ = 10mA;
VNO_ or VNC_ = 1.0V, 2.0V, 3.5V
NO_, NC_ Off-Leakage Current
(Note 8)
INO_(OFF),
INC_(OFF)
V+ = 5.5V; VCOM_ = 1.0V, 4.5V;
VNO_ or VNC_ = 4.5V, 1.0V
COM_ Off-Leakage Current
(Note 8)
ICOM_ (OFF)
V+ = 5.5V; VCOM_ = 1V, 4.5V;
VNO_ or VNC_ = 4.5V, 1V
ICOM_(ON)
V+ = 5.5V; VCOM_ = 1.0V, 4.5V;
VNO_ or VNC_ = 1.0V, 4.5V, or
floating
Turn-On Time
tON
VNO_, VNC_ = 3.0V;
RL = 300Ω, CL = 35pF, Figure 1
Turn-Off Time
tOFF
VNO_, VNC_ = 3.0V;
RL = 300Ω, CL = 35pF, Figure 1
COM_ On-Leakage Current
(Note 8)
+25°C
1.7
TMIN to
TMAX
3.0
3.5
+25°C
0.1
TMIN to
TMAX
0.3
0.4
+25°C
0.4
TMIN to
TMAX
-0.5
TMIN to
TMAX
-1
+25°C
-0.5
TMIN to
TMAX
-1
+25°C
-1
TMIN to
TMAX
-2
0.01
nA
+0.5
+1
0.01
Ω
+0.5
+1
0.01
Ω
1.2
1.5
+25°C
Ω
nA
+1
+2
nA
DYNAMIC CHARACTERISTICS
www.maximintegrated.com
+25°C
30
TMIN to
TMAX
+25°C
TMIN to
TMAX
80
100
20
ns
40
50
ns
Maxim Integrated │ 4
MAX4737/MAX4738/
MAX4739
4.5Ω Quad SPST Analog Switches in UCSP
Electrical Characteristics—Single +5V Supply (continued)
(V+ = +4.2V to +5.5V, VIH = +2.0V, VIL = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = +5.0V,
TA = +25°C, unless otherwise noted.) (Notes 3, 4)
PARAMETER
Break-Before-Make Time Delay
(MAX4739 Only) (Note 8)
Skew (Note 8)
SYMBOL
CONDITIONS
tBBM
VNO_, VNC_ = 3.0V;
RL = 300Ω, CL = 35pF, Figure 2
tSKEW
RS = 39Ω, CL = 50pF, Figure 3
TA
MIN
+25°C
TMIN to
TMAX
TYP
MAX
UNITS
8
ns
1
TMIN to
TMAX
0.15
2
ns
DIGITAL I/O
Input Logic High Voltage
VIH
TMIN to
TMAX
Input Logic Low Voltage
VIL
TMIN to
TMAX
Input Leakage Current
IIN
V+ = 5.5V, VIN_ = 0V or V+
2.0
V
0.8
V
TMIN to
TMAX
-0.1
+0.1
µA
TMIN to
TMAX
1.8
5.5
V
1
µA
POWER SUPPLY
Power-Supply Range
V+
Positive Supply Current
I+
V+ = 5.5V, VIN_ = 0V or V+
TMIN to
TMAX
Note 3: UCSP parts are 100% tested at +25°C only, and guaranteed by design over the specified temperature range. TSSOP and
thin QFN parts are 100% tested at TMAX and guaranteed by design over the specified temperature range.
Note 4: The algebraic convention used in this data sheet is where the most negative value is a minimum and the most positive
value is a maximum.
Note 5: Guaranteed by design for UCSP and thin QFN parts.
Note 6: ΔRON = RON(MAX) - RON(MIN).
Note 7: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the
specified analog signal ranges.
Note 8: Guaranteed by design.
Note 9: Off-Isolation = 20log10 (VCOM / VNO), VCOM = output, VNO = input to off switch.
Note 10: Between any two switches.
www.maximintegrated.com
Maxim Integrated │ 5
MAX4737/MAX4738/
MAX4739
4.5Ω Quad SPST Analog Switches in UCSP
Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
V+ = 2.5V
V+ = 3V
4
4
3
V+ = 4.2V
2
2
V+ = 5V
3
4
5
0.5
0
VCOM (V)
LEAKAGE CURRENT vs. TEMPERATURE
400
COM ON-LEAKAGE
COM OFF-LEAKAGE
200
1000
LEAKAGE CURRENT (pA)
V+ = 3V
300
100
-40
-15
10
35
60
2.5
3.0
0
1
2
LEAKAGE CURRENT vs. TEMPERATURE
V+ = 5V
600
COM ON-LEAKAGE
COM OFF-LEAKAGE
400
3
4
CHARGE INJECTION vs. VCOM
50
40
CL = 1nF
V+ = 5V
30
CL = 1nF
V+ = 3V
20
10
-40
-15
10
35
60
0
85
0
1
2
3
4
TEMPERATURE (°C)
VCOM (V)
SUPPLY CURRENT vs. TEMPERATURE
SUPPLY CURRENT vs. LOGIC LEVEL
TURN-ON/OFF TIME
vs. SUPPLY VOLTAGE
4
V+ = 5V
3
2
V+ = 3V
1
-40
-15
10
35
TEMPERATURE (°C)
www.maximintegrated.com
85
80
V+ = 5V
60
40
0
100
V+ = 3V
0
1
2
80
60
tON
40
tOFF
20
3
LOGIC LEVEL (V)
4
5
5
MAX4737/38/39 toc08
100
20
60
5
VCOM (V)
tON/tOFF (ns)
SUPPLY CURRENT (nA)
2.0
TEMPERATURE (°C)
5
0
1.5
800
0
85
SUPPLY CURRENT (µA)
6
1.0
0
200
MAX4737/38/39 toc06
0
2
VCOM (V)
MAX4737/38/39 toc04a
LEAKAGE CURRENT (pA)
500
TA = +85°C
TA = +25°C
TA = -40°C
TA = -40°C
CHARGE INJECTION (pC)
2
3
1
MAX4737/38/39 toc04b
1
0
1
V+ = 5V
4
MAX4737/38/39 toc07
0
TA = +85°C
TA = +25°C
MAX4737/38/39 toc03
5
RON (Ω)
6
V+ = 3V
ON-RESISTANCE vs. VCOM
5
MAX4737/38/39 toc05
MAX4737/38/39 toc01
V+ = 1.8V
RON (Ω)
RON (Ω)
8
ON-RESISTANCE vs. VCOM
6
MAX4737/38/39 toc02
ON-RESISTANCE vs. VCOM
10
0
1.5
2.5
3.5
4.5
5.5
SUPPLY VOLTAGE (V)
Maxim Integrated │ 6
MAX4737/MAX4738/
MAX4739
4.5Ω Quad SPST Analog Switches in UCSP
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
30
20
-15
10
35
60
0.5
FALL DELAY
2.5
1.5
3.5
4.5
SUPPLY VOLTAGE (V)
RISE TIME TO FALL TIME MISMATCH
vs. SUPPLY VOLTAGE
RISE TIME TO FALL TIME MISMATCH
vs. TEMPERATURE
200
200
100
50
100
2.5
1.5
3.5
4.5
0
5.5
-40
10
35
60
100
MAX4737/38/39 toc11
60
85
INPUT RISE/FALL TIME = 15ns
FIGURE 3, CL = 50pF
300
200
0
85
1.5
2.5
3.5
4.5
5.5
20
0
FREQUENCY RESPONSE
V+ = 3V/5V
-20
ON-LOSS
-40
-60
OFF-ISOLATION
-80
-100
50
CROSSTALK
-120
0
35
SUPPLY VOLTAGE (V)
MAX4737/38/39 toc15
INPUT RISE/FALL TIME = 15ns
FIGURE 3, CL = 50pF
V+ = 4.2V
10
SKEW vs. SUPPLY VOLTAGE
400
TEMPERATURE (°C)
ON-LOSS (dB)
SKEW (ps)
-15
SKEW vs. TEMPERATURE
150
-15
-40
FALL DELAY
100
SUPPLY VOLTAGE (V)
200
RISE DELAY
0.5
TEMPERATURE (°C)
INPUT RISE/FALL TIME = 15ns
FIGURE 3, CL = 50pF
V+ = 4.2V
150
1.0
0
SKEW (ps)
INPUT RISE/FALL TIME = 15ns
FIGURE 3, CL = 50pF
INPUT RISE/FALL TIME = 15ns
FIGURE 3, CL = 50pF
V+ = 4.2V
1.5
5.5
TEMPERATURE (°C)
MISMATCH (ps)
MISMATCH (ps)
RISE DELAY
1.0
0
85
300
0
1.5
MAX4737/38/39 toc13
400
-40
2.0
2.0
MAX4737/38/39 toc16
tOFF, V+ = 5.0V
10
0
tOFF, V+ = 3.0V
MAX4737/38/39 toc12
tON/tOFF (ns)
40
2.5
RISE/FALL-TIME DELAY
vs. TEMPERATURE
MAX4737/38/39 toc14
tON, V+ = 5.0V
INPUT RISE/FALL TIME = 15ns
FIGURE 3, CL = 50pF
OUTPUT RISE/FALL-TIME DELAY (ns)
tON, V+ = 3.0V
MAX4737/38/39 toc10
50
RISE/FALL-TIME DELAY
vs. SUPPLY VOLTAGE
3.0
OUTPUT RISE/FALL-TIME DELAY (ps)
60
MAX4737/38/39 toc09
TURN-ON/OFF TIME
vs. TEMPERATURE
-40
-15
10
35
TEMPERATURE (°C)
www.maximintegrated.com
60
85
-140
0.0001
0.01
1
100
FREQUENCY (MHz)
Maxim Integrated │ 7
MAX4737/MAX4738/
MAX4739
4.5Ω Quad SPST Analog Switches in UCSP
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
MAX4737/38/39 toc17
V+ = 3V
RL = 600Ω
0.1
2.0
LOGIC THRESHOLD (V)
THD (%)
1
LOGIC THRESHOLD vs. SUPPLY VOLTAGE
1.6
VTH+
MAX4737/38/39 toc18
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
1.2
VTH0.8
0.4
0.01
10
100
1k
FREQUENCY (Hz)
www.maximintegrated.com
10k
100k
0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
SUPPLY VOLTAGE (V)
Maxim Integrated │ 8
MAX4737/MAX4738/
MAX4739
4.5Ω Quad SPST Analog Switches in UCSP
Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
(BUMPS SIDE DOWN)
MAX4737
1
2
MAX4738
3
4
1
A
2
IN2
IN3
NO3
GND
COM3
IN2
IN3
COM2
V+
COM1
NO1
COM3
GND
COM4
NC2
V+
COM1
NC1
NO3
COM3
GND
COM4
NC2
V+
COM1
NO1
IN1
IN4
IN1
NO_
OFF
NC_
ON
HIGH
ON
OFF
IN4
UCSP
MAX4739
+
+
14 V+
14 V+
NO1 1
COM1 2
13 IN1
COM1 2
13 IN1
NC2 3
12 IN4
NC2 3
12 IN4
NC1 1
COM1 2
13 IN1
NO2 3
12 IN4
11 NO4
IN_
LOW
NC4
MAX4738
14 V+
COM2 4
IN3
UCSP
MAX4737
+
IN2
D
IN4
UCSP
NO1 1
4
COM2
NC4
D
IN1
3
C
NO4
D
COM2 4
11 NC4
COM2 4
11 NC4
IN2 5
10 COM4
IN2 5
10 COM4
IN2 5
10 COM4
IN3 6
9 COM3
IN3 6
9 COM3
IN3 6
9 COM3
GND 7
TSSOP
12
IN4
COM1
1
LOW
HIGH
OFF
ON
ON
OFF
16
15
14
13
+
12
IN4
COM1
1
IN1
NC2, NC4
ON
OFF
V+
NO1, NO3
LOW
HIGH
IN1
+
INPUT
V+
13
SWITCH STATE
NC1
IN1
14
TSSOP
INPUT
N.C.
V+
ON
NO1
HIGH
N.C.
SWITCH STATE
OFF
15
8 NO3
TSSOP
INPUT
LOW
16
GND 7
8 NC3
NO1
8 NO3
N.C.
GND 7
1
NC3
C
NO2
2
B
COM4
C
1
A
B
COM2
COM1
4
A
B
+
MAX4739
3
16
15
14
13
12
IN4
NO2
2
11
NO4
NC2
2
11
NC4
NC2
2
11
NC4
COM2
3
10
COM4 COM2
3
10
COM4 COM2
3
10
COM4
IN2
4
9
COM3
4
9
COM3
4
9
COM3
7
8
5
6
7
8
5
6
N.C.
IN3
GND
NC3
N.C.
IN3
GND
QFN
QFN
INPUT
LOW
SWITCH STATE
OFF
HIGH
ON
www.maximintegrated.com
7
8
N.C.
6
NO3
5
NO3
IN2
MAX4739
GND
IN2
MAX4738
IN3
MAX4737
QFN
INPUT
SWITCH STATE
INPUT
NO1, NO3
NC2, NC4
LOW
HIGH
ON
OFF
LOW
HIGH
OFF
ON
ON
OFF
Maxim Integrated │ 9
MAX4737/MAX4738/
MAX4739
4.5Ω Quad SPST Analog Switches in UCSP
Pin Descriptions
PIN
MAX4737
MAX4738
MAX4739
TSSOP
D2
1
15
—
—
—
D2
1
15
NO1
Analog-Switch Normally Open
Terminal
—
—
—
D2
1
15
—
—
—
NC1
Analog-Switch Normally Closed
Terminal
D1
2
1
D1
2
1
D1
2
1
COM1
C1
3
2
—
—
—
—
—
—
NO2
Analog-Switch Normally Open
Terminal
—
—
—
C1
3
2
C1
3
2
NC2
Analog-Switch Normally Closed
Terminal
B1
4
3
B1
4
3
B1
4
3
COM2
A1
5
4
A1
5
4
A1
5
4
IN2
Logic-Control Digital Input
A2
6
5
A2
6
5
A2
6
5
IN3
Logic-Control Digital Input
B3
7
6
B3
7
6
B3
7
6
GND
Ground. Connect to digital ground.
A3
8
7
—
—
—
A3
8
7
NO3
Analog-Switch Normally Open
Terminal
—
—
—
A3
8
7
—
—
—
NC3
Analog-Switch Normally Closed
Terminal
A4
9
9
A4
9
9
A4
9
9
COM3
Analog-Switch Common Terminal
B4
10
10
B4
10
10
B4
10
10
COM4
Analog-Switch Common Terminal
www.maximintegrated.com
TSSOP
UCSP
TSSOP
THIN
QFN
FUNCTION
UCSP
UCSP
THIN
QFN
NAME
THIN
QFN
Analog-Switch Common Terminal
Analog-Switch Common Terminal
Maxim Integrated │ 10
MAX4737/MAX4738/
MAX4739
4.5Ω Quad SPST Analog Switches in UCSP
Detailed Description
The MAX4737/MAX4738/MAX4739 quad SPST analog
switches operate from a single +1.8V to +5.5V supply.
The MAX4737/MAX4738/MAX4739 offer excellent AC
characteristics, <0.5nA leakage current, less than 1ns
differential skew, and 15pF on-channel capacitance. All
of these devices are CMOS-logic compatible with V+ to
GND signal handling capability.
The MAX4737/MAX4738/MAX4739 are USB-complaint
switches that provide 4.5Ω (max) on-resistance and
15pF on-channel capacitance to maintain signal integrity.
At 12Mbps (USB full-speed data rate specification), the
MAX4737/MAX4738/MAX4739 introduce less than 2ns
propagation delay between input and output signals and
less than 0.5ns change in skew for the output signals
(see Figure 4).
The MAX4737 has four normally open (NO) switches, the
MAX4738 has four normally closed (NC) switches, and
the MAX4739 has two NO switches and two NC switches.
Applications Information
Analog Signal Levels
Analog signals that range over the entire supply voltage
(V+ to GND) are passed with very little change in onresistance (see Typical Operating Characteristics). The
switches are bidirectional, so the NO_, NC_, and COM_
pins can be either inputs or outputs.
Power-Supply Bypassing
Power-supply bypassing improves noise margin and
prevents switching noise from propagating from the V+
supply to other components. A 0.1μF capacitor connected
from V+ to GND is adequate for most applications.
UCSP Applications Information
For the latest application details on UCSP construction, dimensions, tape carrier information, PC board
techniques, bump-pad layout, and recommended reflow
temperature profile, as well as the latest information on
reliability testing results, refer to the Application Note:
UCSP—A Wafer-Level Chip-Scale Package on Maxim’s
web site at www.maximintegrated.com/ucsp.
Digital Control Inputs
The MAX4737/MAX4738/MAX4739 logic inputs accept
up to +5.5V regardless of supply voltage. For example,
with a +3.3V supply, IN_ can be driven low to GND and
high to +5.5V allowing for mixing of logic levels in a system. Driving the control logic inputs rail-to-rail minimizes
power consumption. For a +1.8V supply voltage, the
logic thresholds are 0.5V (low) and 1.4V (high); for a +5V
supply voltage, the logic thresholds are 0.8V (low) and
2.0V (high).
www.maximintegrated.com
Maxim Integrated │ 11
MAX4737/MAX4738/
MAX4739
4.5Ω Quad SPST Analog Switches in UCSP
Test Circuits/Timing Diagrams
MAX4737
MAX4738
MAX4739
V+
V N_
LOGIC
INPUT
V+
COM_
NO_
V OUT
OR NC_
RL
V IH
50%
V IL
t OFF
CL
IN_
VOUT
GND
LOGIC
INPUT
SWITCH
OUTPUT
0V
0.9 x VOUT
t ON
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
RL
VOUT = VCOM
RL - RON
(
0.9 x V0UT
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
)
Figure 1. Switching Time
V+
MAX4739
V+
COM1
VCOM1
RL2
IN_
LOGIC
INPUT
VOUT2
NC_
COM2
VCOM2
VOUT1
NO_
CL2
GND
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
RL1
LOGIC
INPUT
CL1
SWITCH
OUTPUT 1
(VOUT1)
SWITCH
OUTPUT 2
(VOUT2)
V IH
50%
V IL
0.9 x V0UT1
0V
0.9 x VOUT2
0V
tD
tD
Figure 2. Break-Before-Make Interval
www.maximintegrated.com
Maxim Integrated │ 12
MAX4737/MAX4738/
MAX4739
4.5Ω Quad SPST Analog Switches in UCSP
Test Circuits/Timing Diagrams (continued)
tri
A
TxD+
B
Rs
INPUT A
CL
INPUT A-
10%
90%
50%
tskew_i
90%
50%
10%
tfi
tro
A-
TxDRs = 39Ω
CL = 50pF
Rs
B-
OUTPUT B
CL
OUTPUT B-
10%
90%
50%
tskew_o
90%
50%
10%
tfo
|tro - tri| DELAY DUE TO SWITCH FOR RISING INPUT AND RISING OUTPUT SIGNALS.
|tfo - tfi|
DELAY DUE TO SWITCH FOR FALLING INPUT AND FALLING OUTPUT SIGNALS.
|tskew_o| CHANGE IN SKEW THROUGH THE SWITCH FOR OUTPUT SIGNALS.
|tskew_i| CHANGE IN SKEW THROUGH THE SWITCH FOR INPUT SIGNALS.
Figure 3. Input/Output Skew Timing Diagram
www.maximintegrated.com
Maxim Integrated │ 13
MAX4737/MAX4738/
MAX4739
4.5Ω Quad SPST Analog Switches in UCSP
Test Circuits/Timing Diagrams (continued)
V+
MAX4737
MAX4738
MAX4739
∆VOUT
V+
RGEN
VOUT
COM_
NC_
OR NO_
V GEN
VOUT
CL
GND
IN
OFF
IN_
VIL TO VIH
IN
OFF
ON
ON
OFF
OFF
Q = (∆V OUT )(C L )
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
Figure 4. Charge Injection
C = 0.1µF
SIGNAL
GENERATOR
0dBm
V+
C = 0.1µF V+
V+
SIGNAL GENERATOR
0dBm
MAX4737
MAX4738
MAX4739
NC_ or NO_
50Ω*
0V TO V+
IN_
COM_
ANALYZER
GND
NO1
50Ω
IN1
0V OR V+
ANALYZER
V+
COM1
MAX4737
MAX4738
MAX4739
IN2
NO2
COM2
GND
0V OR V+
N.C.
*USED ONLY FOR OFF-ISOLATION TEST.
Figure 5a. On-Loss and Off-Isolation
C = 0.1µF
V+
V+
NC_ or NO_
CAPACITANCE
METER
f = 1MHz
Figure 5b. Crosstalk Test Circuit
MAX4737
MAX4738
MAX4739
IN_
0V OR V+
COM_
GND
Figure 6. Channel Off-/On-Capacitance
www.maximintegrated.com
Maxim Integrated │ 14
MAX4737/MAX4738/
MAX4739
4.5Ω Quad SPST Analog Switches in UCSP
Package Information
Ordering Information
TEMP RANGE
PIN/BUMPPACKAGE
TOP
MARK
MAX4737EUD
-40°C to +85°C
14 TSSOP
—
MAX4737ETE
-40°C to +85°C
16 Thin QFN
—
MAX4737EBE+T
-40°C to +85°C
16 UCSP-16
4737
MAX4738EUD
-40°C to +85°C
14 TSSOP
MAX4738ETE
-40°C to +85°C
16 Thin QFN
—
MAX4738EBE+T
-40°C to +85°C
16 UCSP-16
4738
MAX4739EUD
-40°C to +85°C
14 TSSOP
—
MAX4739ETE
-40°C to +85°C
16 Thin QFN
—
PART
MAX4739EBE+T
-40°C to +85°C 16 UCSP-16
+Denotes a lead(Pb)-free/RoHS-compliant package.
—
For the latest package outline information and land patterns
(footprints), go to www.maximintegrated.com/packages. Note
that a “+”, “#”, or “-” in the package code indicates RoHS status
only. Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND PATTERN
NO.
14 TSSOP
U14+1
21-0066
90-0113
16 QFN
T1644+4
21-0139
90-0070
16 UCSP
B16+4
21-0101
—
4739
Chip Information
TRANSISTOR COUNT: 361
PROCESS: CMOS
www.maximintegrated.com
Maxim Integrated │ 15
MAX4737/MAX4738/
MAX4739
4.5Ω Quad SPST Analog Switches in UCSP
Revision History
REVISION
NUMBER
REVISION
DATE
2
1/16
DESCRIPTION
Pb-free part numbers updated
PAGES
CHANGED
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
© 2016 Maxim Integrated Products, Inc. │ 16

Open as PDF

Similar pages