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MAX4740ETE+

P1-P3P4-P6P7-P9P10-P12P13-P13
General Description
The MAX4740/MAX4740H low on-resistance (0.61Ω
typ) analog switches operate from a single 1.6V to 5.5V
supply. The MAX4740/MAX4740H are quad, single-
pole, double-throw (SPDT) switches and are configured
to route audio signals. The MAX4740/MAX4740H are
pin-to-pin compatible parts with the ST Microelectronics
quad SPDT STG3699 analog switch.
The MAX4740 is a quad SPDT switch and the
MAX4740H is a quad SPDT switch that can be placed
in a high-impedance mode. Switching logic is con-
trolled by 2 control bits (CB1 and CB2). The MAX4740/
MAX4740H also feature a low on-resistance match
(0.06Ω) and low power-supply current (0.3µA), which
increases battery life.
The MAX4740/MAX4740H are available in a tiny 3mm x
3mm, 16-pin TQFN-EP, and 2.5mm x 2.5mm, 16-pin ultra-
thin QFN packages.
Applications
Voice Switching
Cellular Phones
PDAs and other Handheld Devices
MP3 Player
Notebook Computers
Features
♦ Low On-Resistance (0.61Ω typ)
♦ 0.06Ω (typ) Channel-to-Channel Matching
♦ 0.32Ω (typ) On-Resistance Flatness
♦ 1.6V to 5.5V Single-Supply Voltage
♦ High PSRR Reduces Supply Noise (-60dB typ)
♦ 0.08% Total Harmonic Distortion
♦ -68dB typ Crosstalk (100kHz)
♦ -64dB typ Off-Isolation (100kHz)
♦ Low Supply Current (0.3µA typ)
♦ Low Leakage Current (0.1µA typ)
♦ Pin-to-Pin Compatible with ST Micro STG3699
♦ (3mm x 3mm) 16-Pin TQFN, and (2.5mm x 2.5mm)
16-Pin Ultra-Thin QFN Packages
MAX4740/MAX4740H
Quad SPDT Audio Switches
________________________________________________________________
Maxim Integrated Products
1
19-0558; Rev 1; 11/07
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.
3mm x 3mm Thin QFN/
2.5mm x 2.5mm Ultra-Thin QFN
NC4
*CONNECT EP TO GND OR LEAVE EP UNCONNECTED.
16
1234
12 11 10 9
15
14
13
5
6
7
8
COM1
NO1
V
CC
COM4
NO4
CB2
NC3
CB1
NO2
COM2
*EP
GND
NO3
COM3
NC2
NC1
MAX4740
MAX4740H
TOP VIEW
+
Pin Configuration
Ordering Information
INTERNAL
SPEAKER
GND
EXTERNAL
HEADPHONES
EXTERNAL
HEADPHONES
BLOCKING CAPS
MIDI
(RINGER)
NC1
NC2
NC3
NC4
NO4
NO3
NO2
NO1
COM1
COM2
COM3
COM4
V
CC
1.6V to 5.5V
CB1
CB2
BASEBAND
(SPEECH)
CONTROL
LOGIC
MAX4740
Typical Operating Circuit
PART PIN-PACKAGE
TOP
MARK
PKG
CODE
MAX4740ETE+
16 TQFN-EP
(3mm x 3mm)
AEV
T1633-4
MAX4740EVE+
16 Ultra-Thin QFN
(2.5mm x 2.5mm)
+AAA
V162A2-1
MAX4740HETE+
16 TQFN-EP
(3mm x 3mm)
AEW
T1633-4
MAX4740HEVE+
16 Ultra-Thin QFN
(2.5mm x 2.5mm)
+AAB
V162A2-1
Note: All devices are guaranteed over the -40°C to +85°C
temperature range.
EP = Exposed pad.
MAX4740/MAX4740H
Quad SPDT Audio Switches
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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.
(All voltages referenced to GND.)
V
CC
, CB_ ...............................................................-0.3V to +6.0V
COM_, NC_, NO_ .......................................-0.3V to (V
CC
+ 0.3V)
Continuous Current NO_, NC_, COM_ ..........................±300mA
Peak Current NO_, NC_, COM_
(pulsed at 1ms, 50% duty cycle).................................±400mA
Peak Current NO_, NC_, COM_
(pulsed at 1ms, 10% duty cycle).................................±500mA
Continuous Power Dissipation (T
A
= +70°C)
16-Pin TQFN (3mm x 3mm), Single-Layer Board
(derate 15.6mW/°C above +70°C)..............................1250mW
16-Pin TQFN (3mm x 3mm), Multilayer Board (derate
20.8mW/°C above +70°C) ..........................................1667mW
16-Pin Ultra-Thin QFN (2.5mm x 2.5mm), MultiLayer
Board (derate 11.5mW/°C above +70°C) .................923.8mW
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
ELECTRICAL CHARACTERISTICS
(V
CC
= +2.7V to +5.5V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C, V
CC
= +3.3V.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
POWER SUPPLY
Supply Voltage Range V
CC
1.6 5.5 V
V
CC
= +5.5V, V
CB
_ = 0V or V
CC
0.3 1
V
CC
= +5.5V, V
CB
_ = 0.5V or +1.6V 0.3 5
Supply Current I
CC
V
CC
= +2.5V, V
CB
_ = 0.5V or +1.4V 0.1
µA
ANALOG SWITCH
Analog Signal Range
V
NC
_,
V
NO
_,
V
COM
_,
(Note 2) 0
V
CC
V
T
A
= +25°C
0.61 0.90
On-Resistance R
ON
V
CC
= 3.3V, I
COM_
=
100mA; CB_ = low or
high
T
A
= T
MIN
to
T
MAX
1
Ω
T
A
= +25°C
0.06
On-Resistance Match Between
Channels
ΔR
ON
V
CC
= 3.3V, V
NC
_ or
V
NO
_ = 0.875V; I
COM_
=
100mA (Note 3)
T
A
= T
MIN
to
T
MAX
0.1
Ω
T
A
= +25°C
0.32 0.72
On-Resistance Flatness
R
FLAT
(
NO
)
V
CC
= 3.3V, V
COM_
= 0
to V
CC
; I
COM_
= 100mA
(Note 4)
T
A
= T
MIN
to
T
MAX
0.87
Ω
NO_, NC_ Off-Leakage Current
I
NO
_
(
OFF
),
I
NC_
(
OFF
)
V
CC
= 5.5V; V
NC
_ or V
NO
_ = 0.3V, 5.5V;
V
COM
_ = 5.5V or 0.3V
-1 0.1 +1 µA
COM_ On-Leakage Current
I
COM
_
(
ON
)
V
CC
= 5.5V, V
NC
_ or V
NO
_ = 0.3V, 5.5V, or
unconnected; V
COM
_ = 0.3V, 5.5V, or
unconnected
-1 0.1 +1 µA
MAX4740/MAX4740H
Quad SPDT Audio Switches
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +2.7V to +5.5V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C, V
CC
= 3.3V.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
DYNAMIC CHARACTERISTICS
For N O_, V
N O_
= 1V 70
Turn-On Time t
ON
R
L
= 32Ω, C
L
=
35pF, Figure 2
For N C _, V
N C _
= 1V
210
ns
For N O_, V
N O_
= 1V
210
Turn-Off Time t
OFF
R
L
= 32Ω, C
L
=
35pF, Figure 2
For N C _, V
N C _
= 1V 55
ns
Charge Injection Q
V
GEN
_ = 0V; R
GEN
= 0Ω; C
L
= 1nF;
Figure 3
200
pC
Off-Isolation V
ISO
C
L
= 5pF; R
L
= 32Ω; f = 100kHz;
V
COM
_ = 1V
RMS
; Figure 4 (Note 5)
-64 dB
Crosstalk V
CT
C
L
= 5pF; R
L
= 32Ω; f = 100kHz;
V
COM
_ = 1V
RMS
; Figure 4
-68 dB
Power-Supply Rejection Ratio PSRR
f = 20kHz, V
COM_
= 1V
RMS,
R
L
= 50Ω,
C
L
= 5pF
-60 dB
Total Harmonic Distortion THD f = 20Hz to 20kHz, V
P-P
= 0.5V, R
L
= 32Ω
0.08
%
NO_, NC_ Off-Capacitance
C
NC_
(
OFF
)
,
C
NO
_
(
OFF
)
f = 1MHz, Figure 5 40 pF
COM_ On-Capacitance
C
COM
_
(
ON
)
f = 1MHz, Figure 5
150
pF
DIGITAL INPUTS (CB_)
V
CC
= 1.6V to 2.7V 1.4
Input Logic-High V
IH
V
CC
= 2.7V to 5.5V 1.6
V
Input Logic-Low V
IL
0.5 V
Input Leakage Current I
IN
-1 0.1 +1 µA
Note 1: For TQFN (3mm x 3mm) electrical specifications are production tested at T
A
= +85°C and guaranteed by design at T
A
= +25°C
and -40°C. For Ultra-Thin QFN (2.5mm x 2.5mm) electrical specifications are production tested at T
A
= +25°C and guaranteed by
design at T
A
= +85°C and -40°C.
Note 2: Signals on COM_, NO_, or NC_ exceeding V
CC
are clamped by internal diodes. Limit forward-diode current to maximum
current rating.
Note 3: ΔR
ON
= R
ON(MAX)
- R
ON(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.
Note 5: Off-isolation = 20log10 [V
COM_
/ V
NO_
], V
COM_
= output, V
NO_
= input to off switch.
P1-P3P4-P6P7-P9P10-P12P13-P13

MAX4740ETE+

Mfr. #:
Buy MAX4740ETE+
Manufacturer:
Maxim Integrated
Description:
Analog Switch ICs Quad SPDT Audio Switch
Lifecycle:
New from this manufacturer.
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