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19-3037; Rev 5; 4/09
High-Bandwidth, Quad DPDT Switches
General Description
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. The MAX4760/MAX4760A are quad double-pole/double-throw (DPDT) switches, and the MAX4761/ MAX4761A are octal single-pole/double-throw (SPDT) switches. They have eight 2.0 (typ) on-resistance, low-capacitance switches to route audio and data signals. 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. 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 (UCSPTM).
Features
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 -3dB Bandwidth: 150MHz (typ) 0.2 (typ) Channel-to-Channel Matching 0.8 (typ) On-Resistance Flatness Rail-to-Rail Signal Handling 0.03% (typ) THD +1.8V to +5.5V Supply Range Low Supply Current with 1.8V Logic Threshold (MAX4760A/MAX4761A) Tiny 36-Bump UCSP (3mm x 3mm) 36-Pin TQFN (6mm x 6mm) -40C to +85C Operating Temperature Range
MAX4760/MAX4760A/MAX4761/MAX4761A
Applications
USB Signal Switching Audio-Signal Switching Cellular Phones PDAs/Handheld Devices Notebook Computers
Functional Diagrams
INA NO1 DATA 1 COM1 NC1 NO2 DATA 2 COM2 NC2 INB NO3 NC2 NO3 COM3 NC3 NO4 DATA 4 COM4 NC4 INC NO5 NC4 NO5 COM5 NC5 NO6 DATA 6 COM6 NC6 IND NO7 NC6 NC5 NO6 DATA 6 COM6 NC3 NO4 DATA 4 COM4 NC1 NO2 DATA 2 COM2 INA NO1
Ordering Information
PART TEMP RANGE -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C PINPACKAGE 36 UCSP 36 TQFN-EP** 36 UCSP 36 TQFN-EP** 36 UCSP 36 TQFN-EP** 36 UCSP 36 TQFN-EP**
DATA 1 COM1
MAX4760EBX+T MAX4760ETX+T MAX4760AEWX+T MAX4760AETX+T* MAX4761EBX+T MAX4761ETX+T MAX4761AEBX+T* MAX4761AETX+T*
DATA 3
DATA 3 COM3
DATA 5
DATA 5 COM5
*Future product--contact factory for availability. **EP = Exposed Pad. +Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel.
DATA 7 COM7
NO7
DATA 7 COM7
NC7 NO8
DATA 8 COM8
NC7 NO8
DATA 8 COM8
Pin Configurations/Truth Tables and Typical Operating Circuit appear at end of data sheet.
NC8 MAX4760/MAX4760A
NC8 EN MAX4761/MAX4761A
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 MAX4760/MAX4760A/MAX4761/MAX4761A
ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND.) 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 (pulsed at 1ms, 10% duty cycle)................................200mA (pulsed at 1ms, 50% duty cycle)............................... 300mA Continuous Power Dissipation (TA = +70C) 36-Bump UCSP (derate 15.3mW/C above +70C).... 1221mW 36-Pin TQFN (derate 26.3mW/C above +70C)......... 2105mW Operating Temperature Range ...........................-40C to +85C Junction Temperature ......................................................+150C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) ................................ +300C Bump Temperature (soldering) Infrared (15s) ...............................................................+220C Vapor Phase (60s) .......................................................+215C
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, TA = -40C to +85C, unless otherwise noted. Typical values are at V+ = 3V, TA = +25C.) (Notes 2, 3)
PARAMETER ANALOG SWITCH Analog Signal Range On-Resistance On-Resistance Match Between Channels On-Resistance Flatness NO_, NC_ Off-Leakage Current VCOM_, VNO_, VNC_ RON RON RFLAT(ON) INO_(OFF), INC_(OFF) V+ = 2.7V, ICOM_ = 10mA, VNC_ or VNO_ = 0V or V+ (Note 4) V+ = 2.7V, ICOM_ = 10mA, VNO_ or VNC_ = 1.5V (Notes 4, 5) V+ = 2.7V, ICOM_=10mA, VNC_ or VNO_ = 0V or V+ (Note 6) V+ = 3.6V; VCOM_ = 3.3V, 0.3V; VNO_ or VNC_ = 0.3V, 3.3V V+ = 3.6V (MAX4761/MAX4761A); VCOM_ = 3.3V, 0.3V; VNO_ or VNC_ = 0.3V, 3.3V ICOM_(ON) V+ = 3.6V; VCOM_ = 3.3V, 0.3V; VNO_ or VNC_ = 3.3V, 0.3V or unconnected MAX4760/ MAX4761 MAX4760A/ MAX4761A TMIN to TMAX +25C TMIN to TMAX +25C TMIN to TMAX +25C TMIN to TMAX +25C TMIN to TMAX +25C TMIN to TMAX +25C TMIN to TMAX +25C TMIN to TMAX +25C TMIN to TMAX 400 -5 -25 -5 -25 -5 -25 45 0.1 0.8 0.2 0 2.0 V+ 3.5 4 0.4 0.55 1.5 1.8 +5 nA +25 +5 nA +25 +5 +25 140 150 800 800 nA V SYMBOL CONDITIONS TA MIN TYP MAX UNITS
COM_ Off-Leakage Current
COM_ On-Leakage Current DYNAMIC
Turn-On Time
tON
VNO_ or VNC_ = 1.5V; RL = 50; CL = 35pF, Figure 2
ns ns
2
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High-Bandwidth, Quad DPDT Switches
ELECTRICAL CHARACTERISTICS (continued)
(V+ = +2.7V to +5.25V, TA = -40C to +85C, unless otherwise noted. Typical values are at V+ = 3V, TA = +25C.) (Notes 2, 3)
PARAMETER SYMBOL CONDITIONS V+ = 2.7V, VNO_ or VNC_ = 1.5V; RL = 50; CL = 35pF, Figure 2 MAX4760/ MAX4761 MAX4760A/ MAX4761A TA +25C TMIN to TMAX +25C TMIN to TMAX +25C TMIN to TMAX +25C +25C +25C +25C +25C +25C +25C +25C +25C 2 0.2 15 150 80 95 0.03 25 54 25 ns pC MHz dB dB % pF pF pF 100 ns 300 MIN TYP 25 MAX 50 60 800 800 UNITS ns ns
MAX4760/MAX4760A/MAX4761/MAX4761A
Turn-Off Time
tOFF
Break-Before-Make
tBBM
V+ = 2.7V, VNO_ or VNC_ = 1.5V; RL = 50, CL = 35pF, Figure 3 (Note 7) RS = 39, CL = 50pF, Figure 4 (Note 7) VGEN = 0V, RGEN = 0V, CL = 1.0nF, Figure 5 Signal = 0dBm, CL = 5pF, RL = 50 CL = 5pF, RL = 50, VCOM_ = 1VP-P, f = 100kHz, Figure 6 (Note 8) CL = 5pF, RL = 50, VCOM_ = 1VP-P, f = 100kHz, Figure 6 (Note 9) f = 20Hz to 20kHz , VCOM_ = 1VP-P, DC bias = V+/2, RL = RS = 600
Skew Charge Injection On-Channel -3dB Bandwidth Off-Isolation Crosstalk Total Harmonic Distortion NO_, NC_ Off-Capacitance COM_ On-Capacitance COM_ Off-Capacitance DIGITAL I/O (IN_, EN)
tSKEW Q BW VISO VCT THD
CNO_(OFF), VNO_, VNC_ = GND, f = 1MHz, CNC_(OFF) Figure 7 CCOM(ON) CCOM(OFF) VNO_, VNC_ = GND, f = 1MHz, Figure 7 VCOM_ = GND, f = 1MHz (MAX4761/ MAX4761A), Figure 7 V+ = 2.7V to 3.6V
TMIN to TMAX TMIN to TMAX TMIN to TMAX TMIN to TMAX TMIN to TMAX TMIN to TMAX TMIN to TMAX
1.4 1.6 2.0 0.5 0.5 0.6 1 A V V
Input-Logic High
VIH
V+ = 3.6V to 5.5V (MAX4760A/MAX4761A) V+ = 3.6V to 5.25V (MAX4760/MAX4761) V+ = 2.7V to 3.6V
Input-Logic Low
VIL
V+ = 3.6V to 5.5V (MAX4760A/MAX4761A) V+ = 3.6V to 5.25V (MAX4760/MAX4761)
Input Leakage Current
IIN, IEN
VIN = 0V or V+
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3
High-Bandwidth, Quad DPDT Switches MAX4760/MAX4760A/MAX4761/MAX4761A
ELECTRICAL CHARACTERISTICS (continued)
(V+ = +2.7V to +5.25V, TA = -40C to +85C, unless otherwise noted. Typical values are at V+ = 3V, TA = +25C.) (Notes 2, 3)
PARAMETER POWER SUPPLY Power-Supply Range V+ V+ = 4.3V, VIN_ = 0V or V+ (MAX4760/MAX4761) Power Supply Current I+ V+ = 5.5V, VIN_ = 0V or V+ (MAX4760A/MAX4761A) V+ = 5.5V, VIN_ = 1.8V (MAX4760A/MAX4761A) TMIN to TMAX +25C TMIN to TMAX +25C TMIN to TMAX +25C TMIN to TMAX 5.5 12 0.01 1.0 1.8 0.01 1.0 A 5.5 V SYMBOL CONDITIONS TA MIN TYP MAX UNITS
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 +25C and limits across the full temperature range are guaranteed by correlation and design. TQFN packages are 100% tested at +85C and limits across the full temperature range are guaranteed by correlation and design. Note 4: RON and RON matching specifications are guaranteed by design. Note 5: RON = RON(MAX) - RON(MIN). 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 = 20log10 [VCOM_/(VNO_ or VNC_)], VCOM_ = output, VNO_ or VNC_ = input to off switch. Note 9: Between any two switches.
Typical Operating Characteristics
(V+ = 3V, TA = +25C, unless otherwise noted.)
ON-RESISTANCE vs. VCOM AND TEMPERATURE (MAX4760/MAX4761)
MAX4760A/61A toc01 MAX4760A/61A toc02
ON-RESISTANCE vs. VCOM (MAX4760/MAX4761)
10 9 8 7 RON () 6 5 4 3 2 1 0 V+ = 3V 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 VCOM (V) 0 0 V+ = 2.7V V+ = 5V 1 V+ = 2V V+ = 2.3V RON () 3 V+ = 1.8V 5
ON-RESISTANCE vs. VCOM AND TEMPERATURE (MAX4760/MAX4761)
V+ = 5V
MAX4760A/61A toc03
5
V+ = 3V 4 TA = +85C TA = +25C
4
RON ()
3
TA = +85C
TA = +25C
2
2
TA = -40C
1 TA = -40C 0
0.5
1.0
1.5 VCOM (V)
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 VCOM (V)
4
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High-Bandwidth, Quad DPDT Switches
Typical Operating Characteristics (continued)
(V+ = 3V, TA = +25C, unless otherwise noted.)
ON-RESISTANCE vs. VCOM (MAX4760A/MAX4761A)
MAX4760A/61A toc04
MAX4760/MAX4760A/MAX4761/MAX4761A
ON-RESISTANCE vs. VCOM AND TEMPERATURE (MAX4760A/MAX4761A)
MAX4760A/61A toc05
ON-RESISTANCE vs. VCOM AND TEMPERATURE (MAX4760A/MAX4761A)
V+ = 5V
MAX4760A/61A toc06
25 V+ = 1.8V 20
5
V+ = 3V
5
4
4
RON ()
RON ()
TA = +85C
TA = +25C
RON ()
15
V+ = 2V V+ = 2.3V V+ = 2.7V V+ = 3V
3
3 TA = +85C TA = +25C
10
2
2
5
V+ = 5V
1
TA = -40C
1 TA = -40C
0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 VCOM (V)
0 0 0.5 1.0 1.5 VCOM (V) 2.0 2.5 3.0
0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 VCOM (V)
NO/NC OFF-LEAKAGE CURRENT vs. TEMPERATURE
MAX4760A/61A toc07
COM ON-LEAKAGE CURRENT vs. TEMPERATURE
MAX4760A/61A toc08
COM OFF-LEAKAGE CURRENT vs. TEMPERATURE
MAX4760A/61A toc09
10 NO/NC OFF-LEAKAGE CURRENT (nA)
10 COM ON-LEAKAGE CURRENT (nA)
10 COM OFF-LEAKAGE CURRENT (nA)
1 V+ = 5V 0.1 V+ = 3V 0.01
1 V+ = 5V 0.1 V+ = 3V
1 V+ = 5V
0.1
V+ = 3V
0.01
0.001 -40 -15 10 35 60 85 TEMPERATURE (C)
0.001 -40 -15 10 35 60 85 TEMPERATURE (C)
0.01 -40 -15 10 35 60 85 TEMPERATURE (C)
CHARGE INJECTION vs. VCOM
MAX4760A/61A toc10
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX4760A/61A toc11
SUPPLY CURRENT vs. TEMPERATURE
MAX4760A/61A toc12
60 CL = 1nF 50 CHARGE INJECTION (pC) V+ = 5V 40 30 20 10 0 0 1 2 3 4 5 VCOM (V)
7.0 6.0 SUPPLY CURRENT (nA) 5.0 4.0 3.0 2.0 1.0 0.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
1000
SUPPLY CURRENT (nA)
V+ = 5V 10
V+ = 3V
V+ = 3V 0.1
0.001 5.5 -40 -15 10 35 60 85 SUPPLY VOLTAGE (V) TEMPERATURE (C)
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5
High-Bandwidth, Quad DPDT Switches MAX4760/MAX4760A/MAX4761/MAX4761A
Typical Operating Characteristics (continued)
(V+ = 3V, TA = +25C, unless otherwise noted.)
LOGIC THRESHOLD vs. SUPPLY VOLTAGE
MAX4760A/61A toc13
TURN-ON/OFF TIME vs. SUPPLY VOLTAGE (MAX4760/MAX4761)
MAX4760A/61A toc14
TURN-ON/OFF TIME vs. SUPPLY VOLTAGE (MAX4760A/MAX4761A)
1000 900 800 tON/tOFF (ns) 700 600 500 400 300 200 100 0 tOFF tON
MAX4760A/61A toc15
2.0
80 70 tON 60 tON/tOFF (ns) 50 40 30 20 10 tOFF
1100
1.6 LOGIC THRESHOLD (V)
1.2 VIH VIL 0.8
0.4
0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 SUPPLY CURRENT (V)
0 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)
MAX4760A/61A toc16
TURN-ON/OFF TIMES vs. TEMPERATURE (MAX4760A/MAX4761A)
MAX4760A/61A toc17
70 60 tON, V+ = 3V 50 tON/tOFF (ns) 40 30 20 tOFF, V+ = 3V 10 tOFF, V+ = 5V 0 -40 -15 10 35 60 tON, V+ = 5V
600 500 400 tON/tOFF (ns) 300 200 100 0 tON, V+ = 3V
tON, V+ = 5V tOFF, V+ = 3V tOFF, V+ = 5V
85
-40
-15
10
35
60
85
TEMPERATURE (C)
TEMPERATURE (C)
FREQUENCY RESPONSE
MAX4760A/61A toc18
TOTAL HARMONIC DISTORTION vs. FREQUENCY
RL = 600
MAX4760A/61A toc19
20 0 -20 ON-LOSS ON-LOSS (dB) -40 -60 -80 -100 -120 CROSS-TALK -140 0.0001 OFF-ISOLATION
1
0.1 THD (%) 0.01 0.001 100 10
0.01
1
100
1,000 FREQUENCY (Hz)
10,000
100,000
FREQUENCY (MHz)
6
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High-Bandwidth, Quad DPDT Switches
Pin Description
PIN MAX4760/MAX4760A TQFN-EP 1 2 3 4 5 6 7 8 9 10 11, 14, 17, 29, 32, 35 12 13 15 16 18 19 20 21 22 23 24 25 26 27 28 30 31 33 34 36 -- -- UCSP A1 B2 A2 A3 C3, D4 A4 A5 B5 A6 B6 MAX4761/MAX4761A TQFN-EP 1 2 3 4 5 -- 7 8 9 10 6, 11, 14, 17, 24, 29, 32, 35 12 13 15 16 18 19 20 21 -- 23 -- 25 26 27 28 30 31 33 34 36 22 -- UCSP A1 B2 A2 A3 C3, D4 -- A5 B5 A6 B6 NC1 COM2 NC2 INA V+ INB NC3 COM3 NC4 COM4 Analog Switch 1, Normally Closed Terminal 1 Analog Switch 2, Common Terminal 2 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. 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 NAME FUNCTION
MAX4760/MAX4760A/MAX4761/MAX4761A
--
A4, F3
N.C.
No Connection. Leave N.C. unconnected.
C5 C6 D6 D5 E6 F6 E5 F5 F4 C4, D3 F3 F2 E2 F1 E1 D2 D1 C1 C2 B1 -- --
C5 C6 D6 D5 E6 F6 E5 F5 -- C4, D3 -- F2 E2 F1 E1 D2 D1 C1 C2 B1 F4 --
NO3 NO4 NO8 NO7 COM8 NC8 COM7 NC7 IND GND INC NC6 COM6 NC5 COM5 NO6 NO5 NO1 NO2 COM1 EN EP
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 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 Exposed Pad (TQFN Only). Connect EP to GND.
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7
High-Bandwidth, Quad DPDT Switches MAX4760/MAX4760A/MAX4761/MAX4761A
Detailed Description
The MAX4760/MAX4760A quad double-pole/doublethrow (DPDT) and the MAX4761/MAX4761A octal single-pole/double-throw (SPDT) analog switches operate from a single +1.8V to +5.5V supply. These devices are fully specified for +3V applications. The MAX4760/MAX4760A/MAX4761/MAX4761A have a guaranteed 2.0 (typ) on-resistance to switch data or 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.
POSITIVE SUPPLY V+ D1
MAX4760 MAX4761
NO COM
GND
Applications Information
Digital Control Inputs
The MAX4760/MAX4760A/MAX4761/MAX4761A logic inputs accept up to +5.5V regardless of the supply voltage. For example, with a +3.3V supply, IN_ can be driven 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. For the MAX4761/MAX4761A, drive EN low to enable. When EN is high, COM_ is high impedance.
Figure 1. Overvoltage Protection Using an External Blocking Diode
Power-Supply Sequencing
CMOS devices require proper power-supply sequencing. Always apply V+ before the analog signals, especially 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.
Analog Signal Levels
Analog signal inputs over the full voltage range (0V to V+) are passed through the switch with minimal change in onresistance (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 recommended reflow temperature profile, as well as the latest information on reliability testing results, refer to the Application Note UCSP--A Wafer-Level Chip-Scale Package available on Maxim's website at www.maximic.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 0.1F capacitor connected from V+ to GND is adequate for most applications.
8
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High-Bandwidth, Quad DPDT Switches
Timing Circuits/Timing Diagrams
MAX4760/MAX4760A MAX4761/MAX4761A VN_ NO_ OR NC_ V+ V+ COM_ LOGIC INPUT VOUT RL IN_ LOGIC INPUT GND SWITCH OUTPUT 0V CL VOUT 0.9 x V0UT t OFF 0.9 x VOUT V+ 0V 50% t r < 5ns t f < 5ns 50%
MAX4760/MAX4760A/MAX4761/MAX4761A
t ON
CL INCLUDES FIXTURE AND STRAY CAPACITANCE. RL VOUT = VN_ RL + RON
(
)
IN DEPENDS ON SWITCH CONFIGURATION; INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
Figure 2. Switching Time
MAX4760/MAX4760A MAX4761/MAX4761A NC_ NO_ IN_ LOGIC INPUT GND
V+ V+ LOGIC INPUT COM_ RL VOUT
V+ 50% 0V
VN_
CL
VOUT tBBM CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
0.9 x VOUT
Figure 3. Break-Before-Make Interval
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9
High-Bandwidth, Quad DPDT Switches MAX4760/MAX4760A/MAX4761/MAX4761A
Timing Circuits/Timing Diagrams (continued)
tri 50% INPUT A CL INPUT A90% 50% 10% MAX4760/MAX4760A MAX4761/MAX4761A tfi 10% tskew_i
90%
TxD+ Rs
A+
B+
tro 50%
90%
TxDRs Rs = 39 CL = 50pF
A-
BCL
OUTPUT B OUTPUT B-
10%
tskew_o 90% 50% 10% tfo
|tro - tri| DELAY DUE TO SWITCH FOR RISING INPUT AND RISING OUTPUT SIGNALS. |tfo - tfi| DELAY DUE TO SWITCH FOR FALLING INPUT AND FALLING OUTPUT SIGNALS.
|tskew_o| CHANGE IN SKEW THROUGH THE SWITCH FOR OUTPUT SIGNALS. |tskew_i| CHANGE IN SKEW THROUGH THE SWITCH FOR INPUT SIGNALS.
Figure 4. Input/Output Skew Timing Diagram
V+ MAX4760/MAX4760A MAX4761/MAX4761A RGEN NC_ OR NO_ GND IN_ OFF ON Q = (V OUT )(C L ) V+ COM_ CL VOUT VOUT IN OFF ON
VOUT
OFF
V GEN
VIL TO VIH
IN
OFF
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE.
Figure 5. Charge Injection
10 ______________________________________________________________________________________
High-Bandwidth, Quad DPDT Switches
Timing Circuits/Timing Diagrams (continued)
+5V 10nF OFF-ISOLATION = 20log NETWORK ANALYZER 0V OR V+ IN_ V+ COM1 VIN 50 50 ON-LOSS = 20log VOUT VIN VOUT VIN VOUT VIN
MAX4760/MAX4760A/MAX4761/MAX4761A
MAX4760/MAX4760A MAX4761/MAX4761A NC1 50 GND NO1*
CROSSTALK = 20log VOUT MEAS REF
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 6. On-Loss, Off-Isolation, and Crosstalk
Typical Operating Circuit
10nF V+ INA NO1 V+ MAX4760/MAX4760A MAX4761/MAX4761A COM_ NC2 COM2 IN CAPACITANCE METER f = 1MHz NC_ or NO_ GND HEADPHONES LEFT COM1 HEADPHONES RIGHT
NC1 NO2
VIL OR VIH
INO NO7
COM7 SWITCHING DATA SIGNALS
NC7 NO8 COM8
Figure 7. Channel On-/Off-Capacitance
NC8
MAX4760/ MAX4760A
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11
High-Bandwidth, Quad DPDT Switches MAX4760/MAX4760A/MAX4761/MAX4761A
Pin Configurations/Truth Tables
TOP VIEW MAX4760/MAX4760A (BUMP SIDE DOWN)
COM1 COM5 N.C. N.C. NO2 NO1 NO5 NO6 N.C.
1 2 3 4 5 6
36
35
34
33
32
31
30
29
A NC1 COM1 B NO1 C NO5 D COM5 E NC5 F NC6 INC IND NC7 NC8 COM6 COM7 COM8 NO6 GND V+ NO7 NO8 NO2 V+ GND NO3 NO4 INA V+ INB NC3 COM3 NC4 COM2 COM3 COM4 COM2 NC2
28
17
10
11
12
13
14
15
COM4
N.C.
16
UCSP
TQFN
*EXPOSED PADDLE CONNECTED TO GND.
MAX4760/MAX4760A
INA NO1/NO2 OFF LOW ON HIGH INB NO3/NO4 OFF LOW ON HIGH INC NO5/NO6 LOW OFF HIGH ON IND NO7/NO8 LOW OFF HIGH ON NC1/NC2 ON OFF NC3/NC4 ON OFF NC5/NC6 ON OFF NC7/NC8 ON OFF
12
______________________________________________________________________________________
COM8
NO3
N.C.
NO7
N.C.
NO4
NO8
18
+
NC1
NC2
INA
INB
NC3
NC4
1 2 3 4 5 6 7 8 9
*EP
+
27 26 25 24
NC5 COM6 NC6 INC GND IND NC7 COM7 NC8
MAX4760/MAX4760A
23 22 21 20 19
High-Bandwidth, Quad DPDT Switches
Pin Configurations/Truth Tables (continued)
TOP VIEW MAX4761/MAX4761A
COM1
1 2 3 4 5 6
MAX4760/MAX4760A/MAX4761/MAX4761A
36
35
34
33
32
31
30
29
NC1
NC2
INA
N.C.
NC3
NC4 NC1
28
COM5
(BUMP SIDE DOWN)
N.C.
N.C.
NO2
NO1
NO5
NO6
N.C.
+
+
A B C D E F
1 2 3 4 5 6 7 8 9 17 10 11 12 13 14 15 16 18
*EP
27 26 25 24
NC5 COM6 NC6 N.C. GND EN NC7 COM7 NC8
COM1
COM2
COM3
COM4
COM2 NC2
NO1
NO2
V+
GND
NO3
NO4
INA V+
MAX4761/MAX4761A
23 22 21 20 19
NO5
NO6
GND
V+
NO7
NO8
N.C. NC3
COM5
COM6
COM7
COM8 COM3 NC4
NC5
NC6
N.C.
EN
NC7
NC8
COM4
N.C.
UCSP MAX4761/MAX4761A
EN LOW LOW HIGH HIGH INA LOW HIGH X X NO_ OFF ON OFF OFF NC_ ON OFF OFF OFF
TQFN
*EXPOSED PADDLE CONNECTED TO GND.
Chip Information
PROCESS: CMOS
PACKAGE TYPE 36 UCSP 36 TQFN-EP
Package Information
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. PACKAGE CODE B36-2 T3666-3 DOCUMENT NO. 21-0082 21-0141
______________________________________________________________________________________
COM8
NO3
N.C.
NO7
N.C.
NO4
NO8
13
High-Bandwidth, Quad DPDT Switches MAX4760/MAX4760A/MAX4761/MAX4761A
Revision History
REVISION NUMBER 4 5 REVISION DATE 4/07 4/09 DESCRIPTION Addition of MAX4760A/MAX4761A Revised Ordering Information, Electrical Characteristics table, and Pin Description. PAGES CHANGED 1-14 1, 3, 7
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 (c) 2009 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.

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