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MAX4735
Technical data
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MAXIM MAX4735 Technical data

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General Description
The MAX4735 quad-SPDT switch routes audio signals in portable applications. Each channel has a 0.31Ω typ­ical on-resistance, allowing the MAX4735 to drive 8Ω loudspeakers with less than 0.02% distortion.
The MAX4735 is configured as a quad-SPDT switch with two common control inputs. Each digital input controls two pairs of SPDT switches. The switches are fully bidi­rectional, allowing both multiplexing and demultiplexing operation. Break-before-make operation is guaranteed.
The device operates from a +1.6V to +3.6V supply and over the extended -40°C to +85°C temperature range. It is offered in both 16-pin 3mm x 3mm TQFN and TSSOP packages.
Applications
Cell Phones
Digital Still Cameras
PDAs and Palmtop Devices
MP3 Players
Features
♦ Low 0.31Ω R
ON
♦ 0.06Ω On-Resistance Flatness
♦ Excellent 0.015Ω On-Resistance Matching
♦ Low 0.02% THD into 8Ω
♦ Low 0.015% THD into 32Ω
♦ Audio Signal Routing
♦ Space-Saving, 3mm x 3mm TQFN Package
♦ 1.8V Logic Compatible
MAX4735
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
________________________________________________________________ Maxim Integrated Products 1
Pin Configurations
Ordering Information
PART PIN-PACKAGE
TOP
PKG CODE
MAX4735ETE
16 TQFN ACT T1633-4
MAX4735EUE
16 TSSOP — U16-2
1.6V TO 3.6V
INTERNAL 8Ω SPEAKER
RING TONE/ MELODY IC
MAX4735
AUDIO
CODEC
V
CC
SYSTEM
CONTROLLER
EXTERNAL 8Ω OR 32Ω SPEAKER
Typical Application Circuit
19-3581; Rev 0; 1/05
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.
Pin Configurations continued at end of data sheet.
Note: All products specified across the -40°C to +85°C tem­perature range.
MARK
TOP VIEW
NOTE: EXPOSED PADDLE CONNECTED TO GND.
INA
MAX4735
GND
TQFN
CC
V
NC4
INB
NO3
COM4
12
NO4
11
NC3
10
COM3
9
NC1
16 15 14 13
1
COM1
2
NO1
3
NC2
4
COM2
5678
NO2
MAX4735
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC= 2.7V to 3.6V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at VCC= 3V, TA= +25°C.) (Note 2)
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.
Note 1: Signals on NO_, NC_, COM_ exceeding VCCor GND are clamped by internal diodes. IN_ is clamped to GND by an internal
diode. Limit forward-diode current to maximum current rating.
V
CC
, INA, INB to GND...........................................-0.3V to +4.0V
All Other Pins to GND (Note 1)...................-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 (derate 15.6mW/°C above +70°C) ............1.25W
16-Pin TSSOP (derate 9.4mW/°C above +70°C) ..........755mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER SYMBOL CONDITIONS
MIN
TYP
MAX
UNITS
POWER SUPPLY
Supply Voltage Range V
CC
1.6 3.6 V
Supply Current I
CC
VCC = 3.6V, V
IN_
= 0 or VCC, NO_ = NC_ =
COM_ = floating
1µA
ANALOG SWITCH
Analog Signal Range NO_, NC_, COM_ 0
V
TA = +25°C
0.4
On-Resistance R
ON
VCC = 2.7V, I
COM_
= 100mA,
V
NO_
or V
NC_
= 0 to V
CC
(Note 3)
Ω
TA = +25°C
On-Resistance Match ∆R
ON
VCC = 2.7V, I
COM_
= 100mA,
V
NO_
or V
NC_
= 1.5V
(Notes 3, 4)
Ω
TA = +25°C
On-Resistance Flatness
R
FLAT
VCC = 2.7V; I
COM_
= 100mA; V
NO_
or
V
NC_
= 0.6V, 1.2V, 1.8V
(Note 5)
Ω
TA = +25°C 20 20
NO_ or NC_ Off-Leakage Current
I
OFF
VCC = 3.3V; V
COM_
= 3V, 0.3V or
floating; V
NO_
or V
NC_
=
0.3V, 3V or floating
nA
TA = +25°C 20 20
COM_ On-Leakage Current
I
ON
VCC = 3.3V; V
NO_
or V
NC_
= 0.3V, 3V
or fl oati ng ; V
C OM _
= 0.3V ,
3V or fl oati ng
nA
0.015
TA = T
MIN
TA = T
TA = T
TA = T
TA = T
MIN
MIN
MIN
MIN
to T
to T
to T
to T
to T
MAX
MAX
MAX
MAX
MAX
V
CC
0.31
0.45
0.015 0.03
0.03
0.06 0.75
0.080
100 100
100 100
MAX4735
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
_______________________________________________________________________________________ 3
Note 2: Devices are 100% tested at TA= +85°C. Limits across the full temperature range are guaranteed by design and correlation. Note 3: R
ON
and RONmatching specifications are guaranteed by design for MAX4735ETE only.
Note 4: ∆R
ON
= R
ON(MAX)
- R
ON(MIN)
.
Note 5: Flatness is defined as the difference between the maximum and minimum value of on-resistance, as measured over the
specified analog signal ranges.
Note 6: Guaranteed by design, not production tested. Note 7: Off-isolation = 20log10 [V
COM_
/ (V
NO_
or V
NC_
)], V
COM_
= output, V
NO_
or V
NC_
= input to off switch.
Note 8: Between any two switches.
ELECTRICAL CHARACTERISTICS (continued)
(VCC= 2.7V to 3.6V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at VCC= 3V, TA= +25°C.) (Note 2)
MIN
TYP
MAX
UNITS
200
TA = T
MIN
to T
MAX
180
TA = T
MIN
to T
MAX
Break-Before-Make Time
TA = T
MIN
to T
MAX
100
MHz
0.02
COM_ On-Capacitance
250
±200
PARAMETER SYMBOL CONDITIONS
DYNAMIC CHARACTERISTICS
Turn-On Time t
Turn-Off Time t
Charge Injection Q V
On-Channel Bandwidth
-3dB
Off-Isolation V
Crosstalk V
Total Harmonic Distortion Plus Noise
NC_ or NO_ Off­Capacitance
Power-Supply Rejection Ratio
DIGITAL INPUTS (INA,
Input-Logic High V
Input-Logic Low V
Input Leakage Current I
VCC = 2.7V,
ON
or V
NO_
= 50Ω, CL = 35pF,
R
L
NC_
= 1.5V,
V
Figure 1
VCC = 2.7V,
OFF
or V
NO_
= 50Ω, CL = 35pF,
R
L
NC_
= 1.5V,
V
Figure 1
VCC = 2.7V,
t
BBM
or V
NO_
= 50Ω, CL = 35pF,
R
L
NC_
= 1.5V,
V
Figure 2 (Note 6)
BW R
ISO
CT
THD+N
C
NC_(OFF
C
NO_(OFF
C
COM_(ON)
PSRR
IH
IL
IN
= 0V, R
GEN
= 50Ω, Figure 4 20
L
V
= 1V
COM_
C
= 5pF, Figure 4 (Note 7)
L
V
= 1V
COM_
C
= 5pF, Figure 4 (Note 8)
L
f = 20Hz to 20kHz; V V
= 0.5V
COM_
),
f = 1MHz, V Figure 5
)
f = 1MHz, VNO_ = VNC_ = V Figure 5
VAC = 100mV f = 100kHz
V
= 0 or V
IN_
= 0Ω, CL = 1nF, Figure 3
GEN
, RL = 50Ω, f = 100kHz,
RMS
, RL = 50Ω, f = 100kHz,
RMS
; RL = 32Ω
P-P
_ = VNC_ = V
NO
, V
P-P
COM_
CC
TA = +25°C 40
TA = +25°C 20
TA = +25°C 2 15
, V
NO_
COM_
COM_
,
= 1.5V,
= 1.5V,
NC_
= 1.5V, RL = 50Ω,
ns
200
ns
180
ns
2
pC
-66 dB
-86 dB
%
70 pF
pF
-34 dB
1.4 V
0.5 V
nA
MAX4735
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
4 _______________________________________________________________________________________
Timing Circuits/Timing Diagrams
Figure 1. Switching Time
50%
V
CC
0V
LOGIC INPUT
V
OUT
0.9 x V
OUT
t
BBM
LOGIC INPUT
R
L
GND
C
L
INCLUDES FIXTURE AND STRAY CAPACITANCE.
NO_
IN_
NC_
V
OUT
V
CC
V
CC
C
L
V
N_
COM_
MAX4735
Figure 2. Break-Before-Make Interval
V
GEN
GND
COM_
C
L
V
OUT
V
CC
V
OUT
IN
OFF
ON
OFF
∆V
OUT
Q = (∆V
OUT
)(CL)
NC_
LOGIC-INPUT WAVEFORMS INVERTED FOR SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE.
OFF
ON
OFF
IN
V
IL
TO V
IH
V
CC
R
GEN
IN_
MAX4735
OR NO_
V
CC
Figure 3. Charge Injection
MAX4735
V
N_
LOGIC INPUT
V
CC
V
CC
NO_
COM_
OR NC_
R
IN_
GND
C
INCLUDES FIXTURE AND STRAY CAPACITANCE.
L
R
= V
N_ (
L
)
ON
V
OUT
RL + R
V
CC
LOGIC INPUT
V
OUT
L
C
L
SWITCH OUTPUT
0V
0V
50%
V
OUT
0.9 x V
t
ON
IN DEPENDS ON SWITCH CONFIGURATION; INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
0UT
50%
t
OFF
0.9 x V
OUT
MAX4735
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
_______________________________________________________________________________________ 5
Timing Circuits/Timing Diagrams (continued)
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.
V
CC
V
OUT
V
CC
IN_
NC1
COM1
NO1*
V
IN
MAX4735
OFF-ISOLATION = 20log ✕
V
OUT
V
REF
ON-LOSS = 20log ✕
V
OUT
V
REF
CROSSTALK = 20log ✕
V
OUT
V
REF
NETWORK ANALYZER
50Ω
50Ω 50Ω
50Ω
MEAS REF
10nF
0V OR V
CC
50Ω
GND
*FOR CROSSTALK THIS PIN IS NO2. NC2 AND COM2 ARE OPEN.
V
REF
Figure 4. On-Loss, Off-Isolation, and Crosstalk
CAPACITANCE
METER
NC_ or NO_
COM_
GND
IN
V
IL
OR V
IH
10nF
V
CC
f = 1MHz
V
CC
MAX4735
Figure 5. Channel On-/Off-Capacitance
MAX4735
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
6 _______________________________________________________________________________________
Typical Operating Characteristics
(VCC= 3V, TA= +25°C, unless otherwise noted.)
0.1
0.3
0.2
0.6
0.5
0.4
0.9
0.8
0.7
1.0
0 1.00.5 1.5 2.0 2.5 3.0
ON-RESISTANCE vs. COM_ VOLTAGE
MAX4735 toc01
V
COM
(V)
R
ON
(Ω)
VCC = 1.6V
VCC = 1.8V
VCC = 2.0V
VCC = 2.7V
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0 1.00.5 1.5 2.0 2.5 3.0 3.5 4.0 4.5
ON-RESISTANCE vs. COM_ VOLTAGE
MAX4735 toc02
V
COM
(V)
R
ON
(Ω)
VCC = 3.0V
VCC = 3.3V
VCC = 3.6V
0.10
0.20
0.15
0.30
0.25
0.35
0.40
0 1.0 1.50.5 2.0 2.5 3.0
ON-RESISTANCE
vs. COM_ VOLTAGE AND TEMPERATURE
MAX4735 toc03
V
COM
(V)
R
ON
(Ω)
TA = +85°C
VCC = 3V
TA = +25°C
TA = -40°C
SUPPLY CURRENT vs. TEMPERATURE
MAX4735 toc04
TEMPERATURE (°C)
SUPPLY CURRENT (nA)
603510-15
1
10
100
1000
0.1
-40 85
NO_ = NO_ = COM_ = GND IN_ = GND
VCC = 3.6V
VCC = 1.6V
VCC = 3.0V
NO_/NC_ OFF-LEAKAGE CURRENT
vs. TEMPERATURE
MAX4735 toc05
TEMPERATURE (°C)
NO_/NC_ OFF-LEAKAGE CURRENT (nA)
603510-15
0.0001
0.001
0.01
0.1
1
10
0.00001
-40 85
VCC = 3.6V
VCC = 3.0V
VCC = 1.6V
COM_ ON-LEAKAGE CURRENT
vs. TEMPERATURE
MAX4735 toc06
TEMPERATURE (°C)
COM ON-LEAKAGE CURRENT (nA)
603510-15
0.001
0.01
0.1
1
10
0.0001
-40 85
VCC = 3.6V
VCC = 3.0V
VCC = 1.6V
0
10
5
20
15
25
30
1.6 2.62.1 3.1 3.6
4.1
TURN-ON/OFF TIME
vs. SUPPLY VOLTAGE
MAX4735 toc07
SUPPLY VOLTAGE (V)
t
ON
/t
OFF
(ns)
t
ON
t
OFF
5
11
9
7
13
15
17
19
21
23
25
-40 10-15 35 60 85
TURN-ON/OFF TIME vs. TEMPERATURE
MAX4735 toc08
TEMPERATURE (°C)
t
ON
/t
OFF
(ns)
t
ON
t
OFF
-250
-200
-150
-100
-50
0
50
100
150
0 1.00.5 1.5 2.0 2.5 3.0
CHARGE INJECTION vs. COM_ VOLTAGE
MAX4735 toc09
V
COM
(V)
Q (pC)
VCC = 3.0V
VCC = 1.6V
MAX4735
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
_______________________________________________________________________________________ 7
Typical Operating Characteristics (continued)
(VCC= 3V, TA= +25°C, unless otherwise noted.)
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX4735 toc17
FREQUENCY (MHz)
PSRR (dB)
0.10.001
-30
-25
-20
-15
-10
-5
0
-35
0.00001 10
RL = 50Ω
COM_ ON-CAPACITANCE
vs. COM_ VOLTAGE
350
300
250
200
150
100
COM ON-CAPACITANCE (pF)
50
0
0 1.0 1.50.5 2.0 2.5 3.0
V
(V)
COM
MAX4735 toc10
ON-RESPONSE vs. FREQUENCY
2
0
-2
-4
-6
ON-RESPONSE (dB)
-8
-10
-12
0.001 100 FREQUENCY (MHz)
1010.10.01
MAX4735 toc13
NO_ OFF-CAPACITANCE
100
90
80
70
60
50
40
30
NO OFF-CAPACITANCE (pF)
20
10
0
0 1.00.5 1.5 2.0 2.5 3.0
VNO (V)
OFF-ISOLATION AND CROSSTALK
vs. FREQUENCY
0
-20
vs. NO_ VOLTAGE
-40
-60
RESPONSE (dB)
-80
-100
-120
0.001 100
OFF-ISOLATION
CROSSTALK
FREQUENCY (MHz)
MAX4735 toc11
MAX4735 toc14
1010.10.01
NO_ ON-CAPACITANCE vs. NO_ VOLTAGE
350
300
250
200
150
100
NO ON-CAPACITANCE (pF)
50
0
0 1.0 1.50.5 2.0 2.5 3.0
VNO (V)
LOGIC THRESHOLD
vs. SUPPLY VOLTAGE
1.2
TA = -40°C
TA = +25°C
TA = +25°C
1.1
1.0
0.9 VIN RISING
0.8
0.7
0.6
LOGIC THRESHOLD (V)
0.5
VIN FALLING
0.4
0.3
0.2
1.6 2.1 2.6 3.1 3.6
TA = -40°C
SUPPLY VOLTAGE (V)
TA = +85°C
TA = +85°C
MAX4735 toc12
MAX4735 toc15
PULSE NOISE vs. SIGNAL AMPLITUDE
0.07
0.06
0.05
0.04
0.03
THD+N (%)
0.02
0.01 RL = 16Ω
0
0 1.0 1.50.5 2.0 2.5 3.0
TOTAL HARMONIC DISTORTION
RL = 16Ω
RL = 8Ω
RL = 32Ω
RL = 8Ω
ANALOG SIGNAL AMPLITUDE (V
RL = 16Ω
P-P
MAX4735 toc16
)
MAX4735
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
8 _______________________________________________________________________________________
Pin Description
Detailed Description
The MAX4735 quad-SPDT analog switch operates from a single +1.6V to +3.6V supply. These devices are fully specified for +3V applications.
The MAX4735 features fully bidirectional, rail-to-rail CMOS analog switch channels. They can be configured as dual-DPDT switches, dual 4:2 multiplexers/demulti­plexers, or as a single 8:4 multiplexer/demultiplexer. See Figure 6.
Applications Information
Analog Signal Range
The CMOS switches in the MAX4735 function on any signal within the power-supply voltages. If any channel exceeds V
CC
, it is clamped to VCCby a silicon diode. If any channel goes below GND, it is clamped to GND by a silicon diode. Ensure that if either of these diodes becomes forward biased, the continuous and peak cur­rents do not exceed those listed in the Absolute
Maximum Ratings section of this data sheet.
Figure 6. Functional Diagram
PIN
TSSOP TQFN
1 15 INA Select Input A. Controls switch 1 and switch 2.
2 16 NC1 Normally Closed Terminal Switch 1
3 1 COM1 Common Terminal Switch 1
4 2 NO1 Normally Open Terminal Switch 1
5 3 NC2 Normally Closed Terminal Switch 2
6 4 COM2 Common Terminal Switch 2
7 5 NO2 Normally Open Terminal Switch 2
8 6 GND Ground
9 7 INB Select Input B. Controls switch 3 and switch 4.
10 8 NO3 Normally Open Terminal Switch 3
11 9 COM3 Common Terminal Switch 3
12 10 NC3 Normally Closed Terminal Switch 3
13 11 NO4 Normally Open Terminal Switch 4
14 12 COM4 Common Terminal Switch 4
15 13 NC4 Normally Closed Terminal Switch 4
16 14 V
— PAD EP Exposed Pad. Connect to GND.
NAME FUNCTION
CC
Positive Power Supply
INA
NC1
NO1
NC2
NO2
NC3
NO3
NC4
NO4
INB
MAX4735
V
CC
COM1
COM2
COM3
COM4
GND
As seen in the Typical Operating Characteristics, the on-resistance of the MAX4735 is inversely proportional to the supply voltage. Best performance is obtained by using the highest supply voltage available within the +1.6V to +3.6V range.
Digital Logic Inputs
Digital control inputs INA and INB control the position of the switches in the MAX4735. These inputs are diode clamped to GND only. It is acceptable to leave these pins driven in the absence of a VCCpower supply.
For best performance, drive INA and INB to the full supply voltage range of the MAX4735.
The two switch sections of the MAX4735 operate inde­pendently. Drive INA low to connect COM1 to NC1 and connect COM2 to NC2. Drive INA high to connect COM1 to NO1 and connect COM2 to NO2. Drive INB low to connect COM3 to NC3 and connect COM4 to NC4. Drive INB high to connect COM3 to NO3 and connect COM4 to NO4. See Table 1.
INA and INB have typical hystersis of 100mV by includ­ing positive feedback in the internal buffer. Thus, for applications using DC or very slow ramp rate of the digital input voltage level, connect a 100pF capacitor from IN_ to GND to limit the ICCcurrent at the trip point. The switching point is typically 0.7V between VILand VIHlevels.
Power Supply
The MAX4735 operates from a +1.6V to +3.6V power supply. For best results, bypass VCCto GND with a
0.1µF ceramic chip capacitor located close to the IC.
Audio Signal Routing
The MAX4735’s low RONmakes it an excellent choice for multiplexing loudspeakers in portable equipment. THD performance is inversely proportional to load impedance. Within the audio signal range, there is no frequency component to THD. The only distortion mechanism is the RONflatness’ modulation of the sig­nal into a load. Therefore, for best distortion perfor­mance, use higher impedance transducers.
Each switch channel on the MAX4735 has an absolute maximum rating 300mA continuous current, and 400mA peak current at 50% duty cycle. When driving low-impedance loudspeakers, the peak signal ampli­tude should be limited so these peak currents are not exceeded. For an 8Ω load, this corresponds to
2.3V
RMS
. For a 4Ω load, this is 1.1V
RMS
.
Package Information
The MAX4735 is offered in 16-pin TSSOP and 3mm x 3mm x 0.8mm TQFN packages. The mechanical draw­ings for these packages are located at the end of this data sheet. Please check www.maxim-ic.com/pack­ages to ensure working with the latest information.
The TSSOP package is rated for a peak power dissipa­tion of 755mW at +70°C, with a θJAof 106°C/W on a single-layer PC board. The TQFN package is rated for a peak power dissipation of 1.25W at +70°C, with a θ
JA
of 64°C/W on a single-layer PC board. The TQFN pack­age is the T1633-4 package code variant.
MAX4735
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
_______________________________________________________________________________________ 9
Table 1. Truth Table
INA INB
0—
1—
—0 —
—1 —
SWITCH 1 AND
SWITCH 2 STATE
COM1 to NC1 COM2 to NC2
COM1 to NO1 COM2 to NO2
SWITCH 3 AND
SWITCH 4 STATE
—
—
COM3 to NC3 COM4 to NC4
COM3 to NO3 COM4 to NO4
MAX4735
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
10 ______________________________________________________________________________________
Pin Configurations (continued)
Chip Information
TRANSISTOR COUNT: 487
PROCESS: CMOS
TOP VIEW
INA
NC1
COM1
NO1
NC2
COM2
NO2
GND
1
2
3
MAX4735
4
5
6
7
8
TSSOP
16
V
CC
15
NC4
14
COM4
13
NO4
12
NC3
COM3
11
10
NO3
9
INB
MAX4735
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
______________________________________________________________________________________ 11
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
.)
C
L
0.10 C 0.08 C
D2
D
D/2
E/2
E
C
L
A
A2
A1
L
(NE - 1) X e
C
L
e
D2/2
e
b
0.10 M
k
(ND - 1) X e
C
L
e
E2/2
C A B
E2
L
L
12x16L QFN THIN.EPS
PACKAGE OUTLINE 12, 16L, THIN QFN, 3x3x0.8mm
21-0136
1
E
2
MAX4735
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
12 ______________________________________________________________________________________
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
.)
PKG
REF. MIN.
0.70
A
b
0.20
D
2.90
2.90
E
e
0.45
L
N
ND
NE
A1
A2
k
0.25
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.
12L 3x3
NOM. MAX. NOM.
0.80
0.75
0.30
0.25
3.10
3.00
3.00
3.10
0.50 BSC.
0.55
0.65
12
3
0.0230.05
0
0.20 REF
-
-
16L 3x3
MIN. MAX.
0.75
0.70
0.20
2.90
2.90
0.30
0
0.25
0.25
3.00
3.00
0.50 BSC.
0.40
16
4
4
0.02
0.20 REF
-
0.80
0.30
3.10
3.10
0.50
0.05
EXPOSED PAD VARIATIONS
PKG. CODES
T1233-1
T1233-3
T1633-1 0.95
T1633-2
T1633F-3 0.65
T1633-4
-
MIN.
0.95
0.95
0.95
0.95
D2
NOM.
1.10
1.10
1.10
1.10
0.80
1.10
MAX.
1.25
1.25
1.25
1.25
0.95
1.25
NOM.
MIN.
1.10
0.95
0.95 1.10
1.10
0.95
1.10
0.95
0.80
0.65
1.10
0.95
E2
PIN ID
MAX.
1.25
0.35 x 45∞
0.35 x 45∞1.25 WEED-1
1.25
0.35 x 45∞ WEED-2
1.25
0.35 x 45∞
0.95
0.225 x 45∞
1.25
0.35 x 45∞
JEDEC
WEED-1
WEED-2
WEED-2
WEED-2
DOWN BONDS ALLOWED
NO
YES
NO
YES
N/A
NO
PACKAGE OUTLINE 12, 16L, THIN QFN, 3x3x0.8mm
21-0136
2
E
2
MAX4735
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
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.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13
© 2005 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products, Inc.
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
.)
TSSOP4.40mm.EPS
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