MAX4761ETX+T [MAXIM]
High-Bandwidth, Quad DPDT Switches; 高带宽，四通道双刀双掷开关
| 型号： | MAX4761ETX+T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | High-Bandwidth, Quad DPDT Switches |
| 文件： | 总14页 (文件大小：174K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-3037; Rev 5; 4/09
High-Bandwidth, Quad DPDT Switches
0/MX4761A
General Description
Features
The MAX4760/MAX4760A/MAX4761/MAX4761A (DPDT)
analog switches operate from a single +1.8V to +5.5V
supply. These switches feature a low 54pF (typ)
capacitance for high-speed data switching applications.
♦ USB 1.1 and USB 2.0 (Full Speed 12Mbps)
Signal-Switching Compliant
♦ Data and Audio Signal Routing
♦ Low-Capacitance Data Switches
♦ Less than 0.2ns Skew
The MAX4760/MAX4760A are quad double-pole/dou-
ble-throw (DPDT) switches, and the MAX4761/
MAX4761A are octal single-pole/double-throw (SPDT)
switches. They have eight 2.0Ω (typ) on-resistance,
low-capacitance switches to route audio and data sig-
nals. The MAX4760/MAX4760A have four logic inputs to
control the switches in pairs. The MAX4761/MAX4761A
have one logic control input and an enable input (EN)
to disable the switches.
♦ -3dB Bandwidth: 150MHz (typ)
♦ 0.2Ω (typ) Channel-to-Channel Matching
♦ 0.8Ω (typ) On-Resistance Flatness
♦ Rail-to-Rail Signal Handling
♦ 0.03% (typ) THD
♦ +1.8V to +5.5V Supply Range
The MAX4760/MAX4760A/MAX4761/MAX4761A are
available in a small 36-pin (6mm x 6mm) TQFN and
36-bump (3mm x 3mm) chip-scale package (UCSP™).
♦ Low Supply Current with 1.8V Logic Threshold
(MAX4760A/MAX4761A)
Applications
PDAs/Handheld Devices
Notebook Computers
♦ Tiny 36-Bump UCSP (3mm x 3mm)
♦ 36-Pin TQFN (6mm x 6mm)
USB Signal Switching
Audio-Signal Switching
Cellular Phones
♦ -40°C to +85°C Operating Temperature Range
Ordering Information
Functional Diagrams
PIN-
PACKAGE
PART
TEMP RANGE
INA
NO1
INA
NO1
DATA 1
DATA 2
DATA 1
DATA 2
COM1
COM2
COM1
COM2
MAX4760EBX+T
MAX4760ETX+T
MAX4760AEWX+T
MAX4760AETX+T*
MAX4761EBX+T
MAX4761ETX+T
MAX4761AEBX+T*
MAX4761AETX+T*
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
36 UCSP
NC1
NO2
NC1
NO2
36 TQFN-EP**
36 UCSP
NC2
NC2
NO3
36 TQFN-EP**
36 UCSP
INB
NO3
DATA 3
DATA 4
DATA 3
DATA 4
COM3
COM4
COM3
COM4
36 TQFN-EP**
36 UCSP
NC3
NO4
NC3
NO4
NC4
NC4
NO5
36 TQFN-EP**
INC
NO5
*Future product—contact factory for availability.
**EP = Exposed Pad.
DATA 5
DATA 6
DATA 5
DATA 6
COM5
COM6
COM5
COM6
NC5
NO6
NC5
NO6
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
NC6
NC6
NO7
IND
NO7
DATA 7
DATA 8
DATA 7
DATA 8
COM7
COM8
COM7
COM8
NC7
NO8
NC7
NO8
Pin Configurations/Truth Tables and Typical Operating Circuit
appear at end of data sheet.
NC8
NC8
EN
MAX4761/MAX4761A
MAX4760/MAX4760A
UCSP is a trademark of Maxim Integrated Products, Inc.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
High-Bandwidth, Quad DPDT Switches
ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND.)
Continuous Power Dissipation (T = +70°C)
A
V+.............................................................................-0.3V to +6V
IN_, EN (MAX4760/MAX4761...................................-0.3V to +6V
IN_, EN (MAX4760A/MAX4761A ..................-0.3V to (V+ + 0.3V)
COM_, NO_, NC_ (Note 1) ...........................-0.3V to (V+ + 0.3V)
Continuous Current
NO_, NC_, COM_ ....................................................... 100mA
Peak Current
36-Bump UCSP (derate 15.3mW/°C above +70°C).... 1221mW
36-Pin TQFN (derate 26.3mW/°C above +70°C)......... 2105mW
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)
(pulsed at 1ms, 10% duty cycle)................................ 200mA
(pulsed at 1ms, 50% duty cycle)............................... 300mA
Infrared (15s) ...............................................................+220°C
Vapor Phase (60s) .......................................................+215°C
Note 1: Signals on NO_, NC_, COM_ 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
(V+ = +2.7V to +5.25V, T = -40°C to +85°C, unless otherwise noted. Typical values are at V+ = 3V, T = +25°C.) (Notes 2, 3)
A
A
PARAMETER
SYMBOL
CONDITIONS
T
MIN
TYP
MAX UNITS
A
ANALOG SWITCH
V
,
COM_
Analog Signal Range
On-Resistance
T
to T
0
V+
V
Ω
Ω
Ω
MIN
MAX
V
V
NO_
,
NC
_
+25°C
to T
2.0
0.2
0.8
3.5
4
V+ = 2.7V, I
= 10mA,
_
= 0V or V+ (Note 4)
COM
R
ON
V
or V
T
T
T
NC_
NO
_
MIN
MAX
+25°C
to T
0.4
0.55
1.5
1.8
On-Resistance Match
Between Channels
V+ = 2.7V, I
= 10mA,
= 1.5V (Notes 4, 5)
COM_
ΔR
ON
V
or V
NO_
NC_
MIN
MAX
+25°C
to T
V+ = 2.7V, I
=10mA,
_
COM
On-Resistance Flatness
R
FLAT(ON)
I
NO_(OFF),
V
or V
= 0V or V+ (Note 6)
NO_
NC_
MIN
MAX
V+ = 3.6V;
+25°C
to T
-5
+5
NO_, NC_ Off-Leakage
Current
V
V
= 3.3V, 0.3V;
nA
COM
_
I
NC_(OFF)
T
-25
+25
MIN
MAX
or V = 0.3V, 3.3V
NO
_
NC_
V+ = 3.6V (MAX4761/MAX4761A);
+25°C
to T
-5
0.1
+5
V
V
= 3.3V, 0.3V; V
= 0.3V, 3.3V
_
or
NO_
COM_ Off-Leakage Current
nA
nA
COM
_
T
T
-25
+25
MIN
MAX
NC
0/MX4761A
+25°C
to T
-5
+5
V+ = 3.6V; V
= 3.3V, 0.3V; V
NO
COM
_
_
COM_ On-Leakage Current
I
COM_(ON)
or V
= 3.3V, 0.3V or unconnected
NC_
-25
+25
MIN
MAX
DYNAMIC
+25°C
to T
45
140
150
800
800
MAX4760/
MAX4761
ns
ns
V
or V
= 1.5V;
NO
_
NC_
L
T
T
MIN
MAX
R = 50Ω; C = 35pF,
Figure 2
Turn-On Time
t
L
ON
+25°C
to T
400
MAX4760A/
MAX4761A
MIN
MAX
2
_______________________________________________________________________________________
High-Bandwidth, Quad DPDT Switches
0/MX4761A
ELECTRICAL CHARACTERISTICS (continued)
(V+ = +2.7V to +5.25V, T = -40°C to +85°C, unless otherwise noted. Typical values are at V+ = 3V, T = +25°C.) (Notes 2, 3)
A
A
PARAMETER
SYMBOL
CONDITIONS
MAX4760/
T
MIN
TYP
MAX UNITS
A
+25°C
to T
25
50
ns
60
V+ = 2.7V, V
or
_
NO
MAX4761
T
T
MIN
MAX
V
= 1.5V;
NC_
Turn-Off Time
t
OFF
R = 50Ω; C = 35pF,
L
L
+25°C
to T
300
100
800
ns
MAX4760A/
MAX4761A
Figure 2
800
MIN
MAX
V+ = 2.7V, V
or V = 1.5V;
NC_
NO
_
+25°C
to T
Break-Before-Make
t
ns
ns
R = 50Ω, C = 35pF, Figure 3
BBM
L
L
T
MIN
2
MAX
(Note 7)
= 39Ω, C = 50pF, Figure 4
L
R
S
Skew
t
+25°C
0.2
SKEW
(Note 7)
V
= 0V, R
= 0V,
GEN
GEN
Charge Injection
Q
+25°C
+25°C
+25°C
15
150
80
pC
MHz
dB
C = 1.0nF, Figure 5
L
On-Channel -3dB Bandwidth
Off-Isolation
BW
Signal = 0dBm, C = 5pF, R = 50
Ω
L
L
C = 5pF, R = 50
f = 100kHz, Figure 6 (Note 8)
Ω, V
= 1V
P-P,
L
L
COM_
V
ISO
C = 5pF, R = 50 , V
f = 100kHz, Figure 6 (Note 9)
Ω
= 1V
,
L
L
COM_
P-P
Crosstalk
V
+25°C
+25°C
+25°C
+25°C
+25°C
95
0.03
25
dB
%
CT
f = 20Hz to 20kHz , V = 1V
,
P-P
Ω
COM_
Total Harmonic Distortion
NO_, NC_ Off-Capacitance
COM_ On-Capacitance
COM_ Off-Capacitance
THD
DC bias = V+/2, R = R = 600
L
S
C
C
V
, V
NO_ NC
= GND, f = 1MHz,
NO_(OFF),
_
pF
pF
pF
Figure 7
NC_(OFF)
V
, V
NO_ NC
= GND, f = 1MHz,
_
C
54
COM(ON)
Figure 7
V
= GND, f = 1MHz (MAX4761/
COM_
C
25
COM(OFF)
MAX4761A), Figure 7
DIGITAL I/O (IN_, EN
)
V+ = 2.7V to 3.6V
T
T
to T
to T
1.4
1.6
MIN
MAX
V+ = 3.6V to 5.5V
(MAX4760A/MAX4761A)
MIN
MAX
Input-Logic High
V
V
IH
V+ = 3.6V to 5.25V
(MAX4760/MAX4761)
T
MIN
T
MIN
T
MIN
to T
to T
to T
2.0
MAX
MAX
MAX
V+ = 2.7V to 3.6V
0.5
V+ = 3.6V to 5.5V
(MAX4760A/MAX4761A)
0.5
V
Input-Logic Low
V
IL
V+ = 3.6V to 5.25V
(MAX4760/MAX4761)
T
T
to T
to T
0.6
MIN
MAX
Input Leakage Current
I
, I
IN EN
V
= 0V or V+
IN
1
µA
MIN
MAX
_______________________________________________________________________________________
3
High-Bandwidth, Quad DPDT Switches
ELECTRICAL CHARACTERISTICS (continued)
(V+ = +2.7V to +5.25V, T = -40°C to +85°C, unless otherwise noted. Typical values are at V+ = 3V, T = +25°C.) (Notes 2, 3)
A
A
PARAMETER
POWER SUPPLY
SYMBOL
CONDITIONS
T
MIN
TYP
MAX UNITS
A
Power-Supply Range
Power Supply Current
V+
T
T
T
T
to T
1.8
5.5
1.0
1.0
12
V
MIN
MAX
+25°C
to T
0.01
0.01
5.5
V+ = 4.3V, V
(MAX4760/MAX4761)
= 0V or V+
_
IN
MIN
MAX
+25°C
to T
V+ = 5.5V, V = 0V or V+
(MAX4760A/MAX4761A)
IN_
I+
µA
MIN
MAX
+25°C
to T
V+ = 5.5V, V = 1.8V
(MAX4760A/MAX4761A)
IN_
MIN
MAX
Note 2: The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.
Note 3: UCSP packages are 100% tested at +25°C and limits across the full temperature range are guaranteed by correlation and
design. TQFN packages are 100% tested at +85°C and limits across the full temperature range are guaranteed by correla-
tion and design.
Note 4: R
and ΔR
matching specifications are guaranteed by design.
ON
ON
Note 5: ΔR
= R
- R
.
ON(MIN)
ON
ON(MAX)
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 = 20log [V
/(V
or V
)], V
= output, V
or V
= input to off switch.
NC_
10 COM_ NO_
NC_
COM_
NO_
Note 9: Between any two switches.
Typical Operating Characteristics
(V+ = 3V, T = +25°C, unless otherwise noted.)
A
ON-RESISTANCE
ON-RESISTANCE
vs. V AND TEMPERATURE
COM
vs. V
AND TEMPERATURE
ON-RESISTANCE vs. V
COM
COM
(MAX4760/MAX4761)
(MAX4760/MAX4761)
(MAX4760/MAX4761)
10
5
4
3
2
1
0
5
4
3
2
1
0
V+ = 5V
V+ = 3V
9
V+ = 1.8V
8
7
6
T
A
= +85°C
T = +25°C
A
T
= +85°C
= -40°C
T
A
= +25°C
A
V+ = 2V
5
V+ = 2.3V
4
0/MX4761A
V+ = 2.7V
3
V+ = 5V
T
A
= -40°C
2
T
A
V+ = 3V
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
(V)
1
0
0
0.5
1.0
1.5
2.0
2.5
3.0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
(V)
V
COM
V
COM
(V)
V
COM
4
_______________________________________________________________________________________
High-Bandwidth, Quad DPDT Switches
0/MX4761A
Typical Operating Characteristics (continued)
(V+ = 3V, T = +25°C, unless otherwise noted.)
A
ON-RESISTANCE
AND TEMPERATURE
(MAX4760A/MAX4761A)
ON-RESISTANCE
vs. V AND TEMPERATURE
COM
(MAX4760A/MAX4761A)
ON-RESISTANCE vs. V
(MAX4760A/MAX4761A)
vs. V
COM
COM
25
20
15
10
5
5
4
3
2
1
0
5
4
3
2
1
0
V+ = 3V
V+ = 5V
V+ = 1.8V
V+ = 2V
T
= +85°C
A
T = +25°C
A
T
A
= +85°C
T
A
= +25°C
V+ = 2.3V
V+ = 2.7V
V+ = 3V
V+ = 5V
T
= -40°C
A
T
A
= -40°C
0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
0
0.5
1.0
1.5
2.0
2.5
3.0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
(V)
V
COM
(V)
V
(V)
V
COM
COM
NO/NC OFF-LEAKAGE CURRENT
vs. TEMPERATURE
COM ON-LEAKAGE CURRENT
vs. TEMPERATURE
COM OFF-LEAKAGE CURRENT
vs. TEMPERATURE
10
1
10
1
10
1
V+ = 5V
V+ = 5V
V+ = 3V
V+ = 5V
0.1
0.1
V+ = 3V
0.1
0.01
V+ = 3V
0.01
0.001
0.01
0.001
-40
-15
10
35
60
85
-40
-15
10
35
60
85
-40
-15
10
35
60
85
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
CHARGE INJECTION
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
SUPPLY CURRENT
vs. TEMPERATURE
vs. V
COM
60
50
40
30
20
10
0
1000
10
7.0
6.0
5.0
4.0
3.0
C = 1nF
L
V+ = 5V
V+ = 3V
V+ = 5V
V+ = 3V
0.1
2.0
1.0
0.0
0.001
0
1
2
3
4
5
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
-40
-15
10
35
60
85
V
(V)
TEMPERATURE (°C)
COM
_______________________________________________________________________________________
5
High-Bandwidth, Quad DPDT Switches
Typical Operating Characteristics (continued)
(V+ = 3V, T = +25°C, unless otherwise noted.)
A
TURN-ON/OFF TIME
vs. SUPPLY VOLTAGE
(MAX4760/MAX4761)
TURN-ON/OFF TIME
vs. SUPPLY VOLTAGE
(MAX4760A/MAX4761A)
LOGIC THRESHOLD
vs. SUPPLY VOLTAGE
2.0
80
70
60
50
40
30
20
10
0
1100
1000
900
800
700
600
500
400
300
200
100
0
t
ON
1.6
1.2
t
ON
V
IH
V
IL
0.8
0.4
0
t
OFF
t
OFF
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY CURRENT (V)
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
TURN-ON/OFF TIMES
vs. TEMPERATURE
(MAX4760/MAX4761)
TURN-ON/OFF TIMES
vs. TEMPERATURE
(MAX4760A/MAX4761A)
70
60
50
40
30
20
10
0
600
500
400
300
200
100
0
t
, V+ = 3V
ON
t
, V+ = 3V
ON
t
t
, V+ = 5V
, V+ = 3V
ON
t
, V+ = 5V
ON
OFF
t
, V+ = 3V
, V+ = 5V
-15
OFF
t
, V+ = 5V
-15
OFF
t
OFF
-40
10
35
60
85
-40
10
35
60
85
TEMPERATURE (°C)
TEMPERATURE (°C)
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
FREQUENCY RESPONSE
1
20
0
0/MX4761A
R = 600Ω
L
-20
-40
ON-LOSS
0.1
OFF-ISOLATION
-60
-80
0.01
-100
-120
-140
CROSS-TALK
0.001
0.0001
0.01
1
100
10
100
1,000
10,000
100,000
FREQUENCY (MHz)
FREQUENCY (Hz)
6
_______________________________________________________________________________________
High-Bandwidth, Quad DPDT Switches
0/MX4761A
Pin Description
PIN
NAME
FUNCTION
MAX4760/MAX4760A MAX4761/MAX4761A
TQFN-EP
UCSP
A1
TQFN-EP
UCSP
A1
1
2
3
1
2
3
NC1
COM2
NC2
Analog Switch 1, Normally Closed Terminal 1
Analog Switch 2, Common Terminal 2
B2
B2
A2
A2
Analog Switch 2, Normally Closed Terminal 2
Logic Control Digital Input for the MAX4760/MAX4760A Switch 1
and Switch 2. Digital control input for all MAX4761/MAX4761A
switches.
4
A3
4
A3
INA
5
6
C3, D4
A4
5
—
7
C3, D4
—
V+
INB
Positive Supply Voltage
Logic Control Digital Input for Switches 3 and 4
Analog Switch 3, Normally Closed Terminal 3
Analog Switch 3, Common Terminal 3
Analog Switch 4, Normally Closed Terminal 4
Analog Switch 4, Common Terminal 4
7
A5
A5
NC3
8
B5
8
B5
COM3
NC4
9
A6
9
A6
10
B6
10
B6
COM4
11, 14,
17, 29,
32, 35
6, 11, 14,
17, 24,
29, 32, 35
—
A4, F3
N.C.
No Connection. Leave N.C. unconnected.
12
13
15
16
18
19
20
21
22
23
24
25
26
27
28
30
31
33
34
36
—
C5
C6
D6
D5
E6
12
13
15
16
18
19
20
21
—
23
—
25
26
27
28
30
31
33
34
36
22
—
C5
C6
D6
D5
E6
NO3
NO4
NO8
NO7
COM8
NC8
COM7
NC7
IND
Analog Switch 3, Normally Open Terminal 3
Analog Switch 4, Normally Open Terminal 4
Analog Switch 8, Normally Open Terminal 8
Analog Switch 7, Normally Open Terminal 7
Analog Switch 8, Common Terminal 8
Analog Switch 8, Normally Closed Terminal 8
Analog Switch 7, Common Terminal 7
Analog Switch 7, Normally Closed Terminal 7
Logic Control Digital Input for Switches 7 and 8
Ground
F6
F6
E5
E5
F5
F5
F4
—
C4, D3
F3
C4, D3
—
GND
INC
Logic Control Digital Input for Switches 5 and 6
Analog Switch 6, Normally Closed Terminal 6
Analog Switch 6, Common Terminal 6
Analog Switch 5, Normally Closed Terminal 5
Analog Switch 5, Common Terminal 5
Analog Switch 6, Normally Open Terminal 6
Analog Switch 5, Normally Open Terminal 5
Analog Switch 1, Normally Open Terminal 1
Analog Switch 2, Normally Open Terminal 2
Analog Switch 1, Common Terminal 1
Output Enable, Active Low
F2
F2
NC6
COM6
NC5
COM5
NO6
NO5
NO1
NO2
COM1
EN
E2
E2
F1
F1
E1
E1
D2
D1
C1
C2
B1
—
D2
D1
C1
C2
B1
F4
—
—
—
EP
Exposed Pad (TQFN Only). Connect EP to GND.
_______________________________________________________________________________________
7
High-Bandwidth, Quad DPDT Switches
Detailed Description
POSITIVE SUPPLY
The MAX4760/MAX4760A quad double-pole/double-
V+
throw (DPDT) and the MAX4761/MAX4761A octal sin-
gle-pole/double-throw (SPDT) analog switches operate
from a single +1.8V to +5.5V supply. These devices are
fully specified for +3V applications.
D1
MAX4760
MAX4761
The MAX4760/MAX4760A/MAX4761/MAX4761A have a
guaranteed 2.0Ω (typ) on-resistance to switch data or
NO
COM
audio signals. The low 54pF (typ) capacitance and 0.2ns
change in skew makes them ideal for data switching
applications. The MAX4760/MAX4760A have four logic
inputs to control two switches in pairs and the
MAX4761/MAX4761A have one logic control input and an
enable input (EN) to disable the switches.
GND
Applications Information
Figure 1. Overvoltage Protection Using an External Blocking
Diode
Digital Control Inputs
The MAX4760/MAX4760A/MAX4761/MAX4761A logic
inputs accept up to +5.5V regardless of the supply volt-
age. For example, with a +3.3V supply, IN_ can be dri-
ven low to GND and high to +5.5V, which allows mixed
logic levels in a system. Driving the control logic inputs
rail-to-rail also minimizes power consumption.
Power-Supply Sequencing
CMOS devices require proper power-supply sequenc-
ing. Always apply V+ before the analog signals, espe-
cially if the input signal is not current limited. If
sequencing is not possible, and the input signal is not
current limited to less than 20mA, add a small-signal
diode (Figure 1). Adding the diode reduces the analog
range to a diode drop (0.7V) below V+ and increases
the on-resistance slightly. The maximum supply voltage
must not exceed +6V at any time.
For the MAX4761/MAX4761A, drive EN low to enable.
When EN is high, COM_ is high impedance.
Analog Signal Levels
Analog signal inputs over the full voltage range (0V to V+)
are passed through the switch with minimal change in on-
resistance (see the Typical Operating Characteristics).
The switches are bidirectional so NO_, NC_, and COM_
can be either inputs or outputs.
UCSP Applications Information
For the latest application details on UCSP construction,
dimensions, tape carrier information, printed circuit
board techniques, bump-pad layout, and recommend-
ed reflow temperature profile, as well as the latest infor-
mation on reliability testing results, refer to the
Application Note UCSP—A Wafer-Level Chip-Scale
Package available on Maxim’s website at www.maxim-
ic.com/ucsp.
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 connect-
ed from V+ to GND is adequate for most applications.
0/MX4761A
8
_______________________________________________________________________________________
High-Bandwidth, Quad DPDT Switches
0/MX4761A
Timing Circuits/Timing Diagrams
V+
MAX4760/MAX4760A
MAX4761/MAX4761A
t < 5ns
r
V+
0V
t < 5ns
f
LOGIC
INPUT
50%
V+
COM_
50%
NO_
V
N_
V
OUT
OR NC_
t
OFF
R
C
L
L
IN_
V
OUT
0.9 x V
0.9 x V
OUT
0UT
GND
LOGIC
INPUT
SWITCH
OUTPUT
0V
C INCLUDES FIXTURE AND STRAY CAPACITANCE.
L
IN DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
R
L
V
= V
N_
OUT
(
)
ON
R + R
L
Figure 2. Switching Time
V+
V+
MAX4760/MAX4760A
MAX4761/MAX4761A
V+
0V
LOGIC
INPUT
50%
NC_
NO_
V
V
OUT
N_
COM_
R
C
L
L
IN_
LOGIC
INPUT
GND
0.9 x V
OUT
V
OUT
t
BBM
C INCLUDES FIXTURE AND STRAY CAPACITANCE.
L
Figure 3. Break-Before-Make Interval
_______________________________________________________________________________________
9
High-Bandwidth, Quad DPDT Switches
Timing Circuits/Timing Diagrams (continued)
t
ri
90%
50%
B+
10%
90%
A+
INPUT A
TxD+
t
skew_i
R
C
L
s
INPUT A-
50%
10%
t
fi
MAX4760/MAX4760A
MAX4761/MAX4761A
t
ro
90%
50%
B-
10%
90%
A-
OUTPUT B
OUTPUT B-
TxD-
t
skew_o
10%
C
R
s
L
R = 39Ω
s
C = 50pF
L
50%
fo
t
|t t | DELAY DUE TO SWITCH FOR RISING INPUT AND RISING OUTPUT SIGNALS.
ro - ri
|t t | DELAY DUE TO SWITCH FOR FALLING INPUT AND FALLING OUTPUT SIGNALS.
fo - fi
|t
|t
| CHANGE IN SKEW THROUGH THE SWITCH FOR OUTPUT SIGNALS.
skew_o
|
CHANGE IN SKEW THROUGH THE SWITCH FOR INPUT SIGNALS.
skew_i
Figure 4. Input/Output Skew Timing Diagram
V+
ΔV
OUT
MAX4760/MAX4760A
MAX4761/MAX4761A
V+
V
0/MX4761A
OUT
R
GEN
COM_
NC_
V
OUT
IN
OR NO_
OFF
OFF
OFF
OFF
C
L
ON
ON
V
GEN
GND
IN_
V
TO V
IH
IL
IN
Q = (ΔV )(C )
OUT
L
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
Figure 5. Charge Injection
10 ______________________________________________________________________________________
High-Bandwidth, Quad DPDT Switches
0/MX4761A
Timing Circuits/Timing Diagrams (continued)
+5V
V+
10nF
V
V
OUT
OFF-ISOLATION = 20log ✕
ON-LOSS = 20log ✕
IN
NETWORK
ANALYZER
V
50Ω
50Ω
OUT
V
V
0V OR V+
IN
IN_
V
IN
COM1
V
OUT
MAX4760/MAX4760A
MAX4761/MAX4761A
CROSSTALK = 20log ✕
V
IN
MEAS
REF
OUT
NO1*
NC1
GND
50Ω
50Ω
50Ω
*FOR CROSSTALK THIS PIN IS NO2.
NC2 AND COM2 ARE OPEN.
MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS.
OFF-ISOLATION IS MEASURED BETWEEN COM_ AND OFF NO_ OR NC_ TERMINAL ON EACH SWITCH.
ON-LOSS IS MEASURED BETWEEN COM_ AND ON NO_ OR NC_ TERMINAL ON EACH SWITCH.
CROSSTALK IS MEASURED FROM ONE CHANNEL TO THE OTHER CHANNEL.
SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
Figure 6. On-Loss, Off-Isolation, and Crosstalk
Typical Operating Circuit
V+
10nF
INA
NO1
HEADPHONES
V+
COM1
RIGHT
NC1
NO2
MAX4760/MAX4760A
MAX4761/MAX4761A
NC2
COM_
HEADPHONES
COM2
LEFT
IN
V
OR V
IH
IL
CAPACITANCE
METER
INO
NC_ or
NO_
NO7
COM7
SWITCHING DATA SIGNALS
f = 1MHz
GND
NC7
NO8
COM8
Figure 7. Channel On-/Off-Capacitance
NC8
MAX4760/
MAX4760A
______________________________________________________________________________________ 11
High-Bandwidth, Quad DPDT Switches
Pin Configurations/Truth Tables
TOP VIEW
MAX4760/MAX4760A
(BUMP SIDE DOWN)
1
2
3
4
5
6
NC1
NC2
INA
NC3
INB
NC4
A
NC1
COM2
NC2
INA
NC5
1
2
3
4
5
6
27
26
25
COM1
NO1
COM2
NO2
COM3
NO3
COM4
NO4
COM6
NC6
B
V+
GND
V+
24 INC
C
D
E
MAX4760/MAX4760A
23
22
V+
GND
IND
NO5
NO6
GND
NO7
NO8
INB
COM5
NC5
COM6
NC6
COM7
NC7
COM8
NC8
NC3
7
8
9
21 NC7
*EP
20
19
COM3
NC4
COM7
NC8
INC
IND
F
UCSP
TQFN
*EXPOSED PADDLE CONNECTED TO GND.
MAX4760/MAX4760A
INA NO1/NO2 NC1/NC2
LOW
HIGH
OFF
ON
ON
OFF
INB NO3/NO4 NC3/NC4
LOW
HIGH
OFF
ON
ON
OFF
INC NO5/NO6 NC5/NC6
LOW
HIGH
OFF
ON
ON
0/MX4761A
OFF
IND NO7/NO8 NC7/NC8
LOW
HIGH
OFF
ON
ON
OFF
12 ______________________________________________________________________________________
High-Bandwidth, Quad DPDT Switches
Pin Configurations/Truth Tables (continued)
MAX4761/MAX4761A
0/MX4761A
TOP VIEW
(BUMP SIDE DOWN)
1
2
3
4
5
6
NC1
NC2
INA
NC3
N.C.
NC4
NC1
COM2
NC2
INA
NC5
COM6
NC6
N.C.
GND
EN
1
2
3
4
5
6
27
26
25
24
23
22
A
COM1
NO1
COM2
NO2
COM3
NO3
COM4
NO4
B
V+
GND
V+
C
D
E
MAX4761/MAX4761A
V+
NO5
NO6
GND
NO7
NO8
N.C.
NC3
7
8
9
21 NC7
COM5
NC5
COM6
NC6
COM7
NC7
COM8
NC8
*EP
20
19
COM3
NC4
COM7
NC8
N.C.
EN
F
TQFN
UCSP
*EXPOSED PADDLE CONNECTED TO GND.
MAX4761/MAX4761A
EN
INA
NO_
NC_
LOW
LOW
HIGH
HIGH
LOW
HIGH
X
OFF
ON
ON
OFF
OFF
OFF
OFF
OFF
X
Package Information
Chip Information
For the latest package outline information and land patterns, go
PROCESS: CMOS
to www.maxim-ic.com/packages.
PACKAGE TYPE PACKAGE CODE DOCUMENT NO.
36 UCSP
B36-2
21-0082
21-0141
36 TQFN-EP
T3666-3
______________________________________________________________________________________ 13
High-Bandwidth, Quad DPDT Switches
Revision History
REVISION
NUMBER
REVISION
DATE
PAGES
CHANGED
DESCRIPTION
Addition of MAX4760A/MAX4761A
4
4/07
1–14
Revised Ordering Information, Electrical Characteristics table, and Pin
Description.
5
4/09
1, 3, 7
0/MX4761A
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.
14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2009 Maxim Integrated Products
Maxim is a registered trademark of Maxim Integrated Products, Inc.
相关型号：
MAX4762-MAX4765
Low-Voltage, Dual SPDT, Audio Clickless Switches with Negative Rail Capability
MAXIM
©2020 ICPDF网 联系我们和版权申明