MAXIM MAX4735EUE

19-3581; Rev 0; 1/05
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
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.
Features
♦ Low 0.31Ω RON
♦ 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
Applications
Ordering Information
Cell Phones
PART
Digital Still Cameras
PIN-PACKAGE
TOP
MARK
PKG CODE
PDAs and Palmtop Devices
MAX4735ETE
16 TQFN
ACT
T1633-4
MP3 Players
MAX4735EUE
16 TSSOP
—
U16-2
Note: All products specified across the -40°C to +85°C temperature range.
Pin Configurations
Typical Application Circuit
NC1
INA
VCC
NC4
TOP VIEW
16
15
14
13
RING TONE/
MELODY IC
COM1
1
12
COM4
NO1
2
11
NO4
NC2
3
10
NC3
COM2
4
9
COM3
6
7
8
INB
NO3
NO2
5
GND
MAX4735
TQFN
MAX4735
INTERNAL
8Ω
SPEAKER
AUDIO
CODEC
EXTERNAL
8Ω OR 32Ω
SPEAKER
SYSTEM
CONTROLLER
VCC
1.6V TO 3.6V
NOTE: EXPOSED PADDLE CONNECTED TO GND.
Pin Configurations continued at end of data sheet.
________________________________________________________________ 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
MAX4735
General Description
MAX4735
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
ABSOLUTE MAXIMUM RATINGS
VCC, INA, INB to GND ...........................................-0.3V to +4.0V
All Other Pins to GND (Note 1)...................-0.3V to (VCC + 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 (TA = +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
Note 1: Signals on NO_, NC_, COM_ exceeding VCC or GND are clamped by internal diodes. IN_ is clamped to GND by an internal
diode. 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
(VCC = 2.7V to 3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = 3V, TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
3.6
V
1
µA
VCC
V
POWER SUPPLY
Supply Voltage Range
VCC
Supply Current
ICC
1.6
VCC = 3.6V, VIN_ = 0 or VCC, NO_ = NC_ =
COM_ = floating
0.015
ANALOG SWITCH
Analog Signal Range
NO_, NC_, COM_
TA = +25°C
On-Resistance
VCC = 2.7V,
ICOM_ = 100mA,
VNO_ or VNC_ = 0 to VCC
(Note 3)
VCC = 2.7V,
ICOM_ = 100mA,
VNO_ or VNC_ = 1.5V
(Notes 3, 4)
TA = +25°C
VCC = 2.7V;
ICOM_ = 100mA; VNO_ or
VNC_ = 0.6V, 1.2V, 1.8V
(Note 5)
TA = +25°C
VCC = 3.3V;
VCOM_ = 3V, 0.3V or
floating; VNO_ or VNC_ =
0.3V, 3V or floating
TA = +25°C
20
20
TA = TMIN to TMAX
100
100
VCC = 3.3V;
VNO_ or VNC_ = 0.3V, 3V
or floating; VCOM_ = 0.3V,
3V or floating
TA = +25°C
20
20
On-Resistance Match
On-Resistance Flatness
NO_ or NC_ Off-Leakage
Current
COM_ On-Leakage
Current
2
RON
∆RON
RFLAT
IOFF
ION
0
0.31
0.4
Ω
TA = TMIN to TMAX
0.45
0.015
0.03
Ω
TA = TMIN to TMAX
0.03
0.06
0.75
Ω
TA = TMIN to TMAX
0.080
nA
nA
TA = TMIN to TMAX
100
_______________________________________________________________________________________
100
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
(VCC = 2.7V to 3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = 3V, TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
40
200
UNITS
DYNAMIC CHARACTERISTICS
Turn-On Time
tON
Turn-Off Time
tOFF
Break-Before-Make Time
Charge Injection
tBBM
Q
VCC = 2.7V,
VNO_ or VNC_ = 1.5V,
RL = 50Ω, CL = 35pF,
Figure 1
TA = +25°C
VCC = 2.7V,
VNO_ or VNC_ = 1.5V,
RL = 50Ω, CL = 35pF,
Figure 1
TA = +25°C
VCC = 2.7V,
VNO_ or VNC_ = 1.5V,
RL = 50Ω, CL = 35pF,
Figure 2 (Note 6)
TA = +25°C
2
TA = TMIN to TMAX
2
ns
TA = TMIN to TMAX
200
20
180
ns
TA = TMIN to TMAX
180
15
ns
VGEN = 0V, RGEN = 0Ω, CL = 1nF, Figure 3
100
pC
On-Channel Bandwidth
-3dB
BW
RL = 50Ω, Figure 4
20
MHz
Off-Isolation
VISO
VCOM_ = 1VRMS, RL = 50Ω, f = 100kHz,
CL = 5pF, Figure 4 (Note 7)
-66
dB
Crosstalk
VCT
VCOM_ = 1VRMS, RL = 50Ω, f = 100kHz,
CL = 5pF, Figure 4 (Note 8)
-86
dB
f = 20Hz to 20kHz; VNC_, VNO_,
VCOM_ = 0.5VP-P; RL = 32Ω
0.02
%
Total Harmonic Distortion
Plus Noise
THD+N
NC_ or NO_ OffCapacitance
CNC_(OFF),
CNO_(OFF)
f = 1MHz, VNO_ = VNC_ = VCOM_ = 1.5V,
Figure 5
70
pF
COM_ On-Capacitance
CCOM_(ON)
f = 1MHz, VNO_ = VNC_ = VCOM_ = 1.5V,
Figure 5
250
pF
Power-Supply Rejection
Ratio
PSRR
VAC = 100mVP-P, VCOM_ = 1.5V, RL = 50Ω,
f = 100kHz
-34
dB
DIGITAL INPUTS (INA,
Input-Logic High
VIH
Input-Logic Low
VIL
Input Leakage Current
IIN
1.4
VIN_ = 0 or VCC
V
0.5
V
±200
nA
Devices are 100% tested at TA = +85°C. Limits across the full temperature range are guaranteed by design and correlation.
RON and RON matching specifications are guaranteed by design for MAX4735ETE only.
∆RON = RON(MAX) - RON(MIN).
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 [VCOM_ / (VNO_ or VNC_)], VCOM_ = output, VNO_ or VNC_ = input to off switch.
Note 8: Between any two switches.
Note 2:
Note 3:
Note 4:
Note 5:
_______________________________________________________________________________________
3
MAX4735
ELECTRICAL CHARACTERISTICS (continued)
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
MAX4735
Timing Circuits/Timing Diagrams
MAX4735
VCC
NO_
OR NC_
VN_
LOGIC
INPUT
V CC
COM_
VCC
50%
0V
RL
t OFF
CL
IN_
VOUT
GND
LOGIC
INPUT
SWITCH
OUTPUT
(
0.9 x V0UT
0.9 x VOUT
0V
t ON
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
RL
RL + RON
VOUT = VN_
50%
VOUT
IN DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
)
Figure 1. Switching Time
VCC
MAX4735
LOGIC
INPUT
V CC
50%
0V
NC_
VN_
VCC
VOUT
COM_
NO_
RL
IN_
LOGIC
INPUT
CL
GND
0.9 x VOUT
VOUT
tBBM
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
Figure 2. Break-Before-Make Interval
V CC
∆VOUT
MAX4735
VCC
RGEN
V GEN
VOUT
COM_
NC_
OR NO_
VOUT
GND
VCC
IN
OFF
CL
ON
OFF
IN_
VIL TO VIH
IN
OFF
ON
OFF
Q = (∆V OUT )(C L )
LOGIC-INPUT WAVEFORMS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
Figure 3. Charge Injection
4
_______________________________________________________________________________________
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
VCC 10nF
V
OFF-ISOLATION = 20log ✕ OUT
VREF
NETWORK
ANALYZER
0V OR VCC
IN_
NC1
VCC
COM1
50Ω
VIN
V
ON-LOSS = 20log ✕ OUT
VREF
50Ω
CROSSTALK = 20log ✕
MAX4735
NO1*
50Ω
GND
VOUT
MEAS
REF
50Ω
VOUT
VREF
VREF
50Ω
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.
*FOR CROSSTALK THIS PIN IS NO2.
NC2 AND COM2 ARE OPEN.
Figure 4. On-Loss, Off-Isolation, and Crosstalk
10nF
V CC
VCC
COM_
MAX4735
IN
CAPACITANCE
METER
f = 1MHz
VIL OR VIH
NC_ or
NO_
GND
Figure 5. Channel On-/Off-Capacitance
_______________________________________________________________________________________
5
MAX4735
Timing Circuits/Timing Diagrams (continued)
Typical Operating Characteristics
(VCC = 3V, TA = +25°C, unless otherwise noted.)
0.9
0.35
0.30
RON (Ω)
VCC = 2.0V
0.4
0.35
VCC = 3.3V
0.30
VCC = 1.8V
RON (Ω)
0.25
0.25
VCC = 3.6V
0.20
VCC = 2.7V
TA = +25°C
0.20
TA = -40°C
0.3
0.15
0.15
0.2
0.1
0.10
0
0.5
1.0
1.5
2.0
2.5
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
0.5
1.0
1.5
2.0
2.5
VCOM (V)
VCOM (V)
SUPPLY CURRENT vs. TEMPERATURE
NO_/NC_ OFF-LEAKAGE CURRENT
vs. TEMPERATURE
COM_ ON-LEAKAGE CURRENT
vs. TEMPERATURE
VCC = 3.6V
10
VCC = 3.0V
1
VCC = 1.6V
0.1
-15
10
35
60
85
VCC = 3.6V
0.01
VCC = 3.0V
0.001
0.0001
VCC = 1.6V
0.01
VCC = 3.0V
0.001
VCC = 1.6V
0.0001
0.00001
-40
-15
10
35
60
-40
85
-15
10
35
60
TEMPERATURE (°C)
TURN-ON/OFF TIME
vs. SUPPLY VOLTAGE
TURN-ON/OFF TIME vs. TEMPERATURE
CHARGE INJECTION
vs. COM_ VOLTAGE
MAX4735 toc07
25
23
21
tON
tOFF
10
0
15
13
-200
5
SUPPLY VOLTAGE (V)
3.6
4.1
VCC = 1.6V
-150
7
3.1
-50
-100
tOFF
9
0
85
50
17
11
5
VCC = 3.0V
100
tON
Q (pC)
tON/tOFF (ns)
15
2.6
150
19
20
2.1
VCC = 3.6V
TEMPERATURE (°C)
25
1.6
0.1
TEMPERATURE (°C)
30
3.0
MAX4735 toc06
MAX4735 toc05
0.1
1
MAX4735 toc08
-40
1
10
COM ON-LEAKAGE CURRENT (nA)
100
10
NO_/NC_ OFF-LEAKAGE CURRENT (nA)
MAX4735 toc04
NO_ = NO_ = COM_ = GND
IN_ = GND
6
0
VCOM (V)
1000
SUPPLY CURRENT (nA)
0.10
0
3.0
MAX4735 toc09
RON (Ω)
0.7
0.5
VCC = 3V
TA = +85°C
VCC = 3.0V
VCC = 1.6V
0.6
0.40
MAX4735 toc02
0.40
MAX4735 toc01
1.0
0.8
ON-RESISTANCE
vs. COM_ VOLTAGE AND TEMPERATURE
ON-RESISTANCE vs. COM_ VOLTAGE
MAX4735 toc03
ON-RESISTANCE vs. COM_ VOLTAGE
tON/tOFF (ns)
MAX4735
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
-250
-40
-15
10
35
TEMPERATURE (°C)
60
85
0
0.5
1.0
1.5
VCOM (V)
_______________________________________________________________________________________
2.0
2.5
3.0
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
NO_ OFF-CAPACITANCE
vs. NO_ VOLTAGE
200
150
100
80
300
70
60
50
40
30
250
200
150
100
20
50
10
0
0
0.5
1.0
1.5
2.0
2.5
0
0
3.0
0.5
1.0
1.5
2.0
2.5
3.0
0
1.0
1.5
2.0
2.5
VNO (V)
VNO (V)
ON-RESPONSE vs. FREQUENCY
OFF-ISOLATION AND CROSSTALK
vs. FREQUENCY
LOGIC THRESHOLD
vs. SUPPLY VOLTAGE
0
MAX4735 toc13
2
0
-20
RESPONSE (dB)
-4
-6
-8
1.0
OFF-ISOLATION
-60
CROSSTALK
TA = -40°C
0.9
TA = +85°C
VIN RISING
0.8
0.7
TA = +85°C
0.6
0.5
VIN FALLING
TA = -40°C
0.4
-100
-10
TA = +25°C
1.1
-40
-80
3.0
1.2
-2
TA = +25°C
0.3
0.1
1
-120
0.001
100
10
FREQUENCY (MHz)
0.2
0.01
0.1
1
10
RL = 16Ω
0
RL = 50Ω
-5
RL = 8Ω
3.1
3.6
-10
PSRR (dB)
0.05
2.6
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX4735 toc16
0.07
2.1
SUPPLY VOLTAGE (V)
FREQUENCY (MHz)
TOTAL HARMONIC DISTORTION
PULSE NOISE vs. SIGNAL AMPLITUDE
0.06
1.6
100
MAX4735 toc17
0.01
THD+N (%)
-12
0.001
0.5
VCOM (V)
LOGIC THRESHOLD (V)
0
MAX4735 toc15
50
ON-RESPONSE (dB)
MAX4735 toc11
90
NO ON-CAPACITANCE (pF)
250
350
MAX4735 toc14
COM ON-CAPACITANCE (pF)
300
NO_ ON-CAPACITANCE vs. NO_ VOLTAGE
100
NO OFF-CAPACITANCE (pF)
MAX4735 toc10
350
MAX4735 toc12
COM_ ON-CAPACITANCE
vs. COM_ VOLTAGE
0.04
0.03
-15
-20
RL = 32Ω
0.02
-25
RL = 16Ω
RL = 8Ω
0.01
-30
RL = 16Ω
0
0
0.5
1.0
1.5
2.0
2.5
ANALOG SIGNAL AMPLITUDE (VP-P)
3.0
-35
0.00001
0.001
0.1
10
FREQUENCY (MHz)
_______________________________________________________________________________________
7
MAX4735
Typical Operating Characteristics (continued)
(VCC = 3V, TA = +25°C, unless otherwise noted.)
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
MAX4735
Pin Description
PIN
NAME
FUNCTION
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
4
2
NO1
Normally Open Terminal Switch 1
5
3
NC2
Normally Closed Terminal Switch 2
6
4
COM2
7
5
NO2
Normally Open Terminal Switch 2
8
6
GND
Ground
Common Terminal Switch 1
Common Terminal Switch 2
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
15
13
NC4
Normally Closed Terminal Switch 4
16
14
VCC
Positive Power Supply
—
PAD
EP
Common Terminal Switch 4
Exposed Pad. Connect to GND.
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
MAX4735
INA
VCC
NC1
COM1
NO1
NC2
COM2
NO2
NC3
Analog Signal Range
The CMOS switches in the MAX4735 function on any
signal within the power-supply voltages. If any channel
exceeds VCC, it is clamped to VCC by 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.
8
COM3
NO3
NC4
COM4
NO4
INB
Figure 6. Functional Diagram
_______________________________________________________________________________________
GND
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
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 VCC power 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 ICC current at the trip point.
The switching point is typically 0.7V between VIL and
VIH levels.
Power Supply
The MAX4735 operates from a +1.6V to +3.6V power
supply. For best results, bypass VCC to GND with a
0.1µF ceramic chip capacitor located close to the IC.
Audio Signal Routing
The MAX4735’s low RON makes 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 RON flatness’ modulation of the signal into a load. Therefore, for best distortion performance, use higher impedance transducers.
MAX4735
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.
Table 1. Truth Table
INA
INB
SWITCH 1 AND
SWITCH 2 STATE
SWITCH 3 AND
SWITCH 4 STATE
0
—
COM1 to NC1
COM2 to NC2
—
1
—
COM1 to NO1
COM2 to NO2
—
—
0
—
COM3 to NC3
COM4 to NC4
—
1
—
COM3 to NO3
COM4 to NO4
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
2.3VRMS. For a 4Ω load, this is 1.1VRMS.
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 θJA of 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 θJA
of 64°C/W on a single-layer PC board. The TQFN package is the T1633-4 package code variant.
_______________________________________________________________________________________
9
MAX4735
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
Chip Information
TRANSISTOR COUNT: 487
PROCESS: CMOS
Pin Configurations (continued)
TOP VIEW
INA 1
16
NC1 2
15 NC4
14 COM4
COM1 3
NO1 4
MAX4735
13 NO4
12 NC3
NC2 5
COM2 6
11 COM3
NO2 7
10 NO3
GND 8
9
TSSOP
10
VCC
______________________________________________________________________________________
INB
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
12x16L QFN THIN.EPS
D2
0.10 M C A B
b
D
D2/2
D/2
E/2
E2/2
CL
(NE - 1) X e
E
E2
L
e
CL
k
(ND - 1) X e
CL
CL
0.10 C
0.08 C
A
A2
A1
L
L
e
e
PACKAGE OUTLINE
12, 16L, THIN QFN, 3x3x0.8mm
21-0136
E
1
2
______________________________________________________________________________________
11
MAX4735
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.)
MAX4735
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
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
12L 3x3
16L 3x3
EXPOSED PAD VARIATIONS
REF.
MIN.
NOM.
MAX.
MIN.
NOM.
MAX.
A
0.70
0.75
0.80
0.70
0.75
0.80
b
0.20
0.25
0.30
0.20
0.25
0.30
D
2.90
3.00
3.10
2.90
3.00
3.10
T1233-1
0.95
1.10
1.25
0.95
1.10
1.25
0.35 x 45∞
WEED-1
NO
E
e
2.90
3.00
3.10
2.90
3.00
3.10
T1233-3
0.95
1.10
1.25
0.95
1.10
1.25
0.35 x 45∞
WEED-1
YES
L
0.45
0.65
0.30
0.50 BSC.
0.55
0.50 BSC.
0.40
N
12
16
ND
3
4
NE
3
4
A1
A2
k
0
0.02
0.20 REF
0.25
0.05
-
0.50
0
0.02
0.05
0.25
0.20 REF
-
-
PKG.
CODES
E2
D2
MIN.
NOM.
MAX.
MIN.
NOM. MAX.
JEDEC
PIN ID
DOWN
BONDS
ALLOWED
T1633-1
0.95
1.10
1.25
0.95
1.10
1.25
0.35 x 45∞
WEED-2
NO
T1633-2
0.95
1.10
1.25
0.95
1.10
1.25
0.35 x 45∞
WEED-2
YES
T1633F-3
0.65
0.80
0.95
0.65
0.80
0.95
0.225 x 45∞ WEED-2
N/A
T1633-4
0.95
1.10
1.25
0.95
1.10
1.25
0.35 x 45∞
NO
WEED-2
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.
PACKAGE OUTLINE
12, 16L, THIN QFN, 3x3x0.8mm
21-0136
12
______________________________________________________________________________________
E
2
2
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
TSSOP4.40mm.EPS
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.
MAX4735
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.)