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19-3581; Rev 0; 1/05
Low-Voltage, 0.31, Quad-SPDT Analog Switch
General Description
The MAX4735 quad-SPDT switch routes audio signals in portable applications. Each channel has a 0.31 typical on-resistance, allowing the MAX4735 to drive 8 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 -40C to +85C temperature range. It is offered in both 16-pin 3mm x 3mm TQFN and TSSOP packages. Low 0.31 RON 0.06 On-Resistance Flatness Excellent 0.015 On-Resistance Matching Low 0.02% THD into 8 Low 0.015% THD into 32 Audio Signal Routing Space-Saving, 3mm x 3mm TQFN Package 1.8V Logic Compatible
Features
MAX4735
Applications
Cell Phones Digital Still Cameras PDAs and Palmtop Devices MP3 Players
PART MAX4735ETE MAX4735EUE
Ordering Information
PIN-PACKAGE 16 TQFN 16 TSSOP TOP MARK ACT -- PKG CODE T1633-4 U16-2
Note: All products specified across the -40C to +85C temperature range.
Pin Configurations
TOP VIEW
NC1 NC4
Typical Application Circuit
VCC
INA
16 COM1 NO1 NC2 COM2 1 2 3 4 5 NO2
15
14
13 12 11 COM4 NO4 NC3 COM3
RING TONE/ MELODY IC
MAX4735
MAX4735
10 9
AUDIO CODEC
INTERNAL 8 SPEAKER
6
GND
7 INB
8 NO3
EXTERNAL 8 OR 32 SPEAKER SYSTEM CONTROLLER
TQFN NOTE: EXPOSED PADDLE CONNECTED TO GND. Pin Configurations continued at end of data sheet.
VCC
1.6V TO 3.6V
________________________________________________________________ Maxim Integrated Products
1
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.
Low-Voltage, 0.31, Quad-SPDT Analog Switch MAX4735
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 = +70C) 16-Pin TQFN (derate 15.6mW/C above +70C) ............1.25W 16-Pin TSSOP (derate 9.4mW/C above +70C) ..........755mW Operating Temperature Range ...........................-40C to +85C Storage Temperature Range .............................-65C to +150C Junction Temperature ......................................................+150C Lead Temperature (soldering, 10s) .................................+300C
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 = +25C.) (Note 2)
PARAMETER POWER SUPPLY Supply Voltage Range Supply Current ANALOG SWITCH Analog Signal Range NO_, NC_, COM_ 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) VCC = 2.7V; ICOM_ = 100mA; VNO_ or VNC_ = 0.6V, 1.2V, 1.8V (Note 5) VCC = 3.3V; VCOM_ = 3V, 0.3V or floating; VNO_ or VNC_ = 0.3V, 3V or floating VCC = 3.3V; VNO_ or VNC_ = 0.3V, 3V or floating; VCOM_ = 0.3V, 3V or floating TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX 20 100 20 100 0.06 0.015 0 0.31 VCC 0.4 0.45 0.03 0.03 0.75 0.080 20 nA 100 20 nA 100 V VCC ICC VCC = 3.6V, VIN_ = 0 or VCC, NO_ = NC_ = COM_ = floating 1.6 0.015 3.6 1 V A SYMBOL CONDITIONS MIN TYP MAX UNITS
On-Resistance
RON
On-Resistance Match
RON
On-Resistance Flatness
RFLAT
NO_ or NC_ Off-Leakage Current
IOFF
COM_ On-Leakage Current
ION
2
_______________________________________________________________________________________
Low-Voltage, 0.31, Quad-SPDT Analog Switch
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 2.7V to 3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = 3V, TA = +25C.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX4735
DYNAMIC CHARACTERISTICS VCC = 2.7V, VNO_ or VNC_ = 1.5V, RL = 50, CL = 35pF, Figure 1 VCC = 2.7V, VNO_ or VNC_ = 1.5V, RL = 50, CL = 35pF, Figure 1 VCC = 2.7V, VNO_ or VNC_ = 1.5V, RL = 50, CL = 35pF, Figure 2 (Note 6) TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX 2 2 100 20 -66 -86 0.02 70 250 -34 pC MHz dB dB % pF pF dB 15 ns 20 40 200 ns 200 180 ns 180
Turn-On Time
tON
Turn-Off Time
tOFF
Break-Before-Make Time
tBBM
Charge Injection On-Channel Bandwidth -3dB Off-Isolation Crosstalk Total Harmonic Distortion Plus Noise NC_ or NO_ OffCapacitance COM_ On-Capacitance Power-Supply Rejection Ratio DIGITAL INPUTS (INA, Input-Logic High Input-Logic Low Input Leakage Current
Q BW VISO VCT THD+N CNC_(OFF), CNO_(OFF) CCOM_(ON) PSRR
VGEN = 0V, RGEN = 0, CL = 1nF, Figure 3 RL = 50, Figure 4 VCOM_ = 1VRMS, RL = 50, f = 100kHz, CL = 5pF, Figure 4 (Note 7) VCOM_ = 1VRMS, RL = 50, f = 100kHz, CL = 5pF, Figure 4 (Note 8) f = 20Hz to 20kHz; VNC_, VNO_, VCOM_ = 0.5VP-P; RL = 32 f = 1MHz, VNO_ = VNC_ = VCOM_ = 1.5V, Figure 5 f = 1MHz, VNO_ = VNC_ = VCOM_ = 1.5V, Figure 5 VAC = 100mVP-P, VCOM_ = 1.5V, RL = 50, f = 100kHz 1.4
VIH VIL IIN VIN_ = 0 or VCC
V 0.5 200 V nA
Devices are 100% tested at TA = +85C. 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:
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3
Low-Voltage, 0.31, Quad-SPDT Analog Switch MAX4735
Timing Circuits/Timing Diagrams
MAX4735
VCC V CC COM_ LOGIC INPUT VOUT RL IN_ LOGIC INPUT GND SWITCH OUTPUT 0V CL VOUT 0.9 x V0UT t OFF 0.9 x VOUT VCC 0V 50% 50%
VN_
NO_ OR NC_
t ON
VOUT = VN_
CL INCLUDES FIXTURE AND STRAY CAPACITANCE. RL RL + RON
(
)
IN DEPENDS ON SWITCH CONFIGURATION; INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
Figure 1. Switching Time
MAX4735
VCC V CC LOGIC INPUT COM_ RL GND VOUT VOUT
VCC 50% 0V
VN_
NC_ NO_ IN_
CL
LOGIC INPUT
0.9 x VOUT tBBM
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
Figure 2. Break-Before-Make Interval
V CC
MAX4735
VCC RGEN NC_ OR NO_ GND IN_ OFF ON Q = (V OUT )(C L ) COM_ CL VOUT VOUT IN OFF VCC ON
VOUT
OFF
V GEN
VIL TO VIH
IN
OFF
LOGIC-INPUT WAVEFORMS INVERTED FOR SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE.
Figure 3. Charge Injection 4 _______________________________________________________________________________________
Low-Voltage, 0.31, Quad-SPDT Analog Switch
Timing Circuits/Timing Diagrams (continued)
VCC 10nF NETWORK ANALYZER 0V OR VCC IN_ VCC COM1 VIN 50 50 V OFF-ISOLATION = 20log OUT VREF V ON-LOSS = 20log OUT VREF CROSSTALK = 20log NO1* GND VOUT MEAS REF VREF VOUT VREF
MAX4735
NC1 50
MAX4735
50
50
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
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5
Low-Voltage, 0.31, Quad-SPDT Analog Switch MAX4735
Typical Operating Characteristics
(VCC = 3V, TA = +25C, unless otherwise noted.)
ON-RESISTANCE vs. COM_ VOLTAGE AND TEMPERATURE
MAX4735 toc02
ON-RESISTANCE vs. COM_ VOLTAGE
MAX4735 toc01
ON-RESISTANCE vs. COM_ VOLTAGE
0.40 0.35 VCC = 3.0V 0.30 RON () VCC = 3.3V RON () 0.30 0.25 0.20 0.40
0.9 0.8 0.7 RON () 0.6 0.5 0.4 0.3 VCC = 1.8V VCC = 2.0V VCC = 2.7V VCC = 1.6V
VCC = 3V 0.35 TA = +85C
0.25 VCC = 3.6V 0.20 0.15
TA = +25C TA = -40C
0.2 0.1 0 0.5 1.0 1.5 VCOM (V) 2.0 2.5 3.0 0.10 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 VCOM (V)
0.15 0.10 0 0.5 1.0 1.5 VCOM (V) 2.0 2.5 3.0
SUPPLY CURRENT vs. TEMPERATURE
MAX4735 toc04
NO_/NC_ OFF-LEAKAGE CURRENT vs. TEMPERATURE
MAX4735 toc05
COM_ ON-LEAKAGE CURRENT vs. TEMPERATURE
MAX4735 toc06
1000 NO_ = NO_ = COM_ = GND IN_ = GND SUPPLY CURRENT (nA) 100 VCC = 3.6V 10 VCC = 3.0V 1 VCC = 1.6V
10 NO_/NC_ OFF-LEAKAGE CURRENT (nA) 1 0.1 0.01 0.001 0.0001 VCC = 1.6V
10 COM ON-LEAKAGE CURRENT (nA)
1
VCC = 3.6V VCC = 3.0V
0.1
VCC = 3.6V
0.01 VCC = 3.0V 0.001 VCC = 1.6V
0.1 -40 -15 10 35 60 85 TEMPERATURE (C)
0.00001 -40 -15 10 35 60 85 TEMPERATURE (C)
0.0001 -40 -15 10 35 60 85 TEMPERATURE (C)
TURN-ON/OFF TIME vs. SUPPLY VOLTAGE
MAX4735 toc07
TURN-ON/OFF TIME vs. TEMPERATURE
MAX4735 toc08
CHARGE INJECTION vs. COM_ VOLTAGE
100 50 0 Q (pC) -50 -100 VCC = 1.6V VCC = 3.0V
MAX4735 toc09
30 25 tON tON/tOFF (ns) 20 15 tOFF 10 5 0 1.6 2.1 2.6 3.1 3.6 4.1 SUPPLY VOLTAGE (V)
25 23 21 19 tON/tOFF (ns) 17 15 13 11 9 7 5 -40 -15 10 35 60 tOFF tON
150
-150 -200 -250 85 0 0.5 1.0 1.5 VCOM (V) 2.0 2.5 3.0
TEMPERATURE (C)
6
_______________________________________________________________________________________
MAX4735 toc03
1.0
Low-Voltage, 0.31, Quad-SPDT Analog Switch
Typical Operating Characteristics (continued)
(VCC = 3V, TA = +25C, unless otherwise noted.)
COM_ ON-CAPACITANCE vs. COM_ VOLTAGE
MAX4735 toc10
MAX4735
NO_ OFF-CAPACITANCE vs. NO_ VOLTAGE
MAX4735 toc11
NO_ ON-CAPACITANCE vs. NO_ VOLTAGE
MAX4735 toc12
350 300 COM ON-CAPACITANCE (pF) 250 200 150 100 50 0 0 0.5 1.0 1.5 VCOM (V) 2.0 2.5
100 90 NO OFF-CAPACITANCE (pF) 80 70 60 50 40 30 20 10 0
350 300 NO ON-CAPACITANCE (pF) 250 200 150 100 50 0
3.0
0
0.5
1.0
1.5 VNO (V)
2.0
2.5
3.0
0
0.5
1.0
1.5 VNO (V)
2.0
2.5
3.0
ON-RESPONSE vs. FREQUENCY
MAX4735 toc13
OFF-ISOLATION AND CROSSTALK vs. FREQUENCY
MAX4735 toc14
LOGIC THRESHOLD vs. SUPPLY VOLTAGE
1.1 1.0 LOGIC THRESHOLD (V) 0.9 0.8 0.7 0.6 0.5 0.4 0.3 VIN FALLING TA = -40C TA = +85C TA = +25C VIN RISING TA = -40C TA = +85C TA = +25C
MAX4735 toc15
2 0 ON-RESPONSE (dB) -2
0 -20 RESPONSE (dB) -40 OFF-ISOLATION -60 -80 -100 -120 0.001 CROSSTALK
1.2
-4 -6 -8 -10 -12 0.001
0.2 0.01 0.1 1 10 100 1.6 2.1 2.6 3.1 3.6 FREQUENCY (MHz) SUPPLY VOLTAGE (V)
0.01
0.1
1
10
100
FREQUENCY (MHz)
TOTAL HARMONIC DISTORTION PULSE NOISE vs. SIGNAL AMPLITUDE
MAX4735 toc16
POWER-SUPPLY REJECTION RATIO vs. FREQUENCY
RL = 50
MAX4735 toc17
0.07 0.06 0.05 THD+N (%) 0.04 0.03 RL = 32 0.02 RL = 8 0.01 RL = 16 0 0 0.5 1.0 1.5 2.0 2.5 RL = 16 RL = 16 RL = 8
0 -5 -10 PSRR (dB) -15 -20 -25 -30
3.0
-35 0.00001
0.001
0.1
10
ANALOG SIGNAL AMPLITUDE (VP-P)
FREQUENCY (MHz)
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7
Low-Voltage, 0.31, Quad-SPDT Analog Switch MAX4735
Pin Description
PIN TSSOP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 -- TQFN 15 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 PAD NAME INA NC1 COM1 NO1 NC2 COM2 NO2 GND INB NO3 COM3 NC3 NO4 COM4 NC4 VCC EP FUNCTION Select Input A. Controls switch 1 and switch 2. Normally Closed Terminal Switch 1 Common Terminal Switch 1 Normally Open Terminal Switch 1 Normally Closed Terminal Switch 2 Common Terminal Switch 2 Normally Open Terminal Switch 2 Ground Select Input B. Controls switch 3 and switch 4. Normally Open Terminal Switch 3 Common Terminal Switch 3 Normally Closed Terminal Switch 3 Normally Open Terminal Switch 4 Common Terminal Switch 4 Normally Closed Terminal Switch 4 Positive Power Supply 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.
MAX4735
INA NC1 COM1 NO1 NC2 COM2 NO2 NC3 VCC
Applications Information
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.
COM3 NO3 NC4 COM4 NO4 INB GND
Figure 6. Functional Diagram
8
_______________________________________________________________________________________
Low-Voltage, 0.31, Quad-SPDT Analog Switch
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.
MAX4735
Table 1. Truth Table
INA 0 1 -- -- INB -- -- 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
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.
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 8 load, this corresponds to 2.3VRMS. For a 4 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 +70C, with a JA of 106C/W on a single-layer PC board. The TQFN package is rated for a peak power dissipation of 1.25W at +70C, with a JA of 64C/W on a single-layer PC board. The TQFN package is the T1633-4 package code variant.
Power Supply
The MAX4735 operates from a +1.6V to +3.6V power supply. For best results, bypass VCC to GND with a 0.1F 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.
_______________________________________________________________________________________
9
Low-Voltage, 0.31, Quad-SPDT Analog Switch MAX4735
Chip Information
TRANSISTOR COUNT: 487 PROCESS: CMOS
Pin Configurations (continued)
TOP VIEW
INA 1 NC1 2 COM1 3 NO1 4 NC2 5 COM2 6 NO2 7 GND 8
16
VCC
15 NC4 14 COM4
MAX4735
13 NO4 12 NC3 11 COM3 10 NO3 9 INB
TSSOP
10
______________________________________________________________________________________
Low-Voltage, 0.31, Quad-SPDT Analog Switch
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
D2 b
0.10 M C A B
D D/2
D2/2
E/2
E2/2
C L
E
(NE - 1) X e
E2
L
C L
e
k (ND - 1) X e
C L
0.10 C 0.08 C A A2 A1 L
C L
L
e
e
PACKAGE OUTLINE 12, 16L, THIN QFN, 3x3x0.8mm
21-0136
E
1
2
______________________________________________________________________________________
12x16L QFN THIN.EPS
11
Low-Voltage, 0.31, Quad-SPDT Analog Switch 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.)
PKG REF. A b D E e L N ND NE A1 A2 k 0 MIN. 0.70 0.20 2.90 2.90 0.45
12L 3x3 NOM. 0.75 0.25 3.00 3.00 0.50 BSC. 0.55 12 3 3 0.02 0.05 0 0.25 0.20 REF 0.25 0.65 0.30 MAX. 0.80 0.30 3.10 3.10 MIN. 0.70 0.20 2.90 2.90
16L 3x3 NOM. 0.75 0.25 3.00 3.00 0.50 BSC. 0.40 16 4 4 0.02 0.20 REF 0.05 0.50 MAX. 0.80 0.30 3.10 3.10 PKG. CODES T1233-1 T1233-3 T1633-1 T1633-2 T1633F-3 T1633-4
EXPOSED PAD VARIATIONS
D2 MIN. 0.95 0.95 0.95 0.95 0.65 0.95 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 MIN. 0.95 0.95 0.95 0.95 0.65 0.95 E2 NOM. MAX. 1.10 1.10 1.10 1.10 0.80 1.10 1.25 1.25 1.25 1.25 0.95 1.25 PIN ID 0.35 x 45 0.35 x 45 0.35 x 45 0.35 x 45 JEDEC WEED-1 WEED-1 WEED-2 WEED-2
DOWN BONDS ALLOWED
NO YES NO YES N/A NO
0.225 x 45 WEED-2 0.35 x 45 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
E
2
2
12
______________________________________________________________________________________
Low-Voltage, 0.31, 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.)
TSSOP4.40mm.EPS
MAX4735
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 (c) 2005 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products, Inc.

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