MAX4684EBC-T ,0.5Ω/0.8Ω Low-Voltage, Dual SPDT Analog Switches in UCSPfeatures a 0.5Ω (max) R for its NCON♦ NO Switch RONswitch and a 0.8Ω (max) R for its NO switch at a ..
MAX4684EBC-T ,0.5Ω/0.8Ω Low-Voltage, Dual SPDT Analog Switches in UCSPELECTRICAL CHARACTERISTICS—+3V SUPPLY(V+ = +2.7V to +3.3V, V = +1.4V, V = +0.5V, T = T to T , unles ..
MAX4684EBC-T ,0.5Ω/0.8Ω Low-Voltage, Dual SPDT Analog Switches in UCSPApplications Ordering InformationSpeaker Headset Switching PIN/B U M P- TOPPART TEMP RANGEMARKMP3 ..
MAX4684ETB ,0.5 /0.8 Low-Voltage / Dual SPDT Analog Switches in UCSPApplicationsSpeaker Headset Switching PIN/BUMP-TOPPART TEMP RANGEMARKPACKAGEMP3 PlayersMAX4684EBC - ..
MAX4684ETB+ ,0.5Ω/0.8Ω Low-Voltage, Dual SPDT Analog Switches in UCSPFeatures♦ 12-Bump, 0.5mm-Pitch UCSPThe MAX4684/MAX4685 low on-resistance (R ), low-ON♦ NC Switch Rv ..
MAX4684ETB+T ,0.5Ω/0.8Ω Low-Voltage, Dual SPDT Analog Switches in UCSPMAX4684/MAX468519-1977; Rev 4; 1/09Ω Ω Ω Ω0.5 /0.8 Low-Voltage, Dual SPDT Analog Switches in UCSP
MAX8860EUA18+ ,Low-Dropout, 300mA Linear Regulator in µMAXMAX886019-1422; Rev 2; 1/01Low-Dropout, 300mA Linear Regulator in µMAX
MAX8860EUA18+T ,Low-Dropout, 300mA Linear Regulator in µMAXMAX886019-1422; Rev 2; 1/01Low-Dropout, 300mA Linear Regulator in µMAX
MAX8860EUA25 ,Low-Dropout / 300mA Linear Regulator in MAXELECTRICAL CHARACTERISTICS(V = +3.6V, C = 33nF, T = -40°C to +85°C, unless otherwise noted. Typical ..
MAX8860EUA25 ,Low-Dropout / 300mA Linear Regulator in MAXfeatures include a 10nA, logic-controlled shut- Small, Space-Saving µMAX Package down mode, short ..
MAX8860EUA25+ ,Low-Dropout, 300mA Linear Regulator in µMAXApplicationsWireless HandsetsDSP Core PowerOrdering InformationPCMCIA CardsPIN- VOUTPART TEMP RANGE ..
MAX8860EUA25+T ,Low-Dropout, 300mA Linear Regulator in µMAXELECTRICAL CHARACTERISTICS(V = 3.6V, C = 33nF, T = -40°C to +85°C, unless otherwise noted. Typical ..
MAX4684EBC+T-MAX4684EBC-T-MAX4684ETB+-MAX4684ETB+T-MAX4684EUB+-MAX4684EUB+T-MAX4684EUB-T-MAX4685EBC+T-MAX4685EUB+
0.5Ω/0.8Ω Low-Voltage, Dual SPDT Analog Switches in UCSP
General DescriptionThe MAX4684/MAX4685 low on-resistance (RON), low-
voltage, dual single-pole/double-throw (SPDT) analog
switches operate from a single +1.8V to +5.5V supply.
The MAX4684 features a 0.5Ω(max) RONfor its NC
switch and a 0.8Ω(max) RONfor its NO switch at a
+2.7V supply. The MAX4685 features a 0.8Ωmax on-
resistance for both NO and NC switches at a +2.7V
supply.
Both parts feature break-before-make switching action
(2ns) with tON= 50ns and tOFF= 40ns at +3V. The digi-
tal logic inputs are 1.8V logic-compatible with a +2.7V to
+3.3V supply.
The MAX4684/MAX4685 are packaged in the chipscale
package (UCSP)™, significantly reducing the required
PC board area. The chip occupies only a 2.0mm ✕
1.50mm area. The 4 ✕3 array of solder bumps are
spaced with a 0.5mm bump pitch.
________________________ApplicationsSpeaker Headset Switching
MP3 Players
Power Routing
Battery-Operated Equipment
Relay Replacement
Audio and Video Signal Routing
Communications Circuits
PCMCIA Cards
Cellular Phones
Modems
Features12-Bump, 0.5mm-Pitch UCSPNC Switch RON0.5Ωmax (+2.7V Supply) (MAX4684)
0.8Ωmax (+2.7V Supply) (MAX4685)NO Switch RON
0.8Ωmax (+2.7V Supply)RONMatch Between Channels
0.06Ω(max)RONFlatness Over Signal Range0.15Ω(max)+1.8V to +5.5V Single-Supply OperationRail-to-Rail Signal Handling1.8V Logic CompatibilityLow Crosstalk: -68dB (100kHz)High Off-Isolation: -64dB (100kHz)THD: 0.03%50nA (max) Supply CurrentLow Leakage Currents
1nA (max) at TA= +25°C
MAX4684/MAX4685
0.5ΩΩ/0.8ΩΩ
Low-Voltage, Dual SPDT
Analog Switches in UCSP 19-1977; Rev 4; 1/09
COM2COM1
NO2NO1
NC2
IN2IN1
NC1
GND
TOP VIEW
IN_
NO_
MAX4684/MAX4685OFF
NC_SWITCHES SHOWN FOR LOGIC "0" INPUT
OFF
UCSPMAX4684/MAX4685MAX4684/MAX4685
NC2IN1
GNDNC1
COM2
IN2COM1
NO110NO2V+
µMAXB4A4B1
Pin Configurations/Functional Diagrams/Truth TableUCSP is a trademark of Maxim Integrated Products, Inc.
µMAX is a registered trademark of Maxim Integrated Products,
Inc.
Continued at end of data sheet.
Ordering Information+Denotes a lead(Pb)-free/RoHS-compliant package.
Note:Requires special solder temperature profile described in
the Absolute Maximum Ratings section.
*UCSP reliability is integrally linked to the user’s assembly
methods, circuit board material, and environment. Refer to the
UCSP Reliability Notice in the UCSP Reliability section of this
data sheet for more information.
**EP = Exposed Pad
T = Tape and reel.
PARTTEMP RANGEPIN /B U M P-
PACKAGE
TOP
MARKA X4 6 8 4 E BC + T-40°C to +85°C12 UCSP*AAFAX 4684E TB+ T-40°C to +85°C10 TD FN - E P **AAGAX 4684E U B+ T-40°C to +85°C10 µMAX®—
A X4 6 8 5 E BC + T-40°C to +85°C12 UCSP*AAGAX 4685E TB+ T-40°C to +85°C10 TD FN - E P **AAHAX 4685E U B+ T-40°C to +85°C10 µMAX—
MAX4684/MAX4685
0.5ΩΩ/0.8ΩΩ
Low-Voltage, Dual SPDT
Analog Switches in UCSP
ABSOLUTE MAXIMUM RATINGSStresses 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+, IN_......................................................................-0.3V to +6V
COM_, NO_, NC_ (Note1)...........................-0.3V to (V+ + 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)
10-Pin TDFN (derate 18.5mW/°C above +70°C)........1482mW
12-Bump UCSP (derate 11.4mW/°C above +70°C)...909mW
10-Pin µMAX (derate 5.6mW/°C above +70°C)..........444mW
Operating Temperature Ranges..........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
Bump Temperature (soldering) (Note 2)
Infared (15s)................................................................+220°C
Vapor Phase (60s)......................................................+215°C
Note 1:Signals on NO_, NC_, and COM_ exceeding V+ or GND are clamped by internal diodes. Limit forward-diode current to
maximum current rating.
Note 2:This device is constructed using a unique set of packaging techniques that impose a limit on the thermal profile the device
can be exposed to during board level solder attach and rework. This limit permits only the use of the solder profiles recom-
mended in the industry-standard specification, JEDEC 020A, paragraph 7.6, Table 3 for IR/VPR and Convection reflow. Pre-
heating is required. Hand or wave soldering is not allowed.
PARAMETERSYMBOLCONDITIONSTAMINTYPMAXUNITS
ANALOG SWITCHAnalog Signal RangeVNO_, VNC_,
VCOM_E0V+V
+25°C0.30.5MAX4684E0.5
+25°C0.450.8
NC_ On-Resistance
(Note 4)RON(NC)V + = 2.7V ; IC OM _ = 100mA;
VNC_ = 0 to V+
MAX4685E0.8
+25°C0.450.8NO_ On-Resistance
(Note 4)RON(NO)V+ = 2.7V; ICOM_ = 100mA;
VNO_ = 0 to V+E0.8Ω
+25°C0.06On-Resistance Match
Between Channels
(Notes 4, 5)
ΔRONV+ = 2.7V; ICOM_ = 100mA;
VNO_ or VNC_ = 1.5VE0.06
MAX4684E0.15NC_ On-Resistance
Flatness (Note 6)RFLAT (NC)V + = 2.7V ; IC OM = 100mA;N C _ = 0 to V +MAX4685E0.35Ω
NO_ On-Resistance
Flatness (Note 6)RFLAT (NO)V+ = 2.7V; ICOM = 100mA;
VNO_ = 0 to V+E0.35Ω
+25°C-11NO_ or NC_ Off-
Leakage Current
(Note 7)
INO_(OFF) or
INC_(OFF)
V+ = 3.3V; VNO_ or VNC_ = 3V, 0.3V;
VCOM_ = 0.3V, 3VE-1010nA
+25°C-22
COM_ On-Leakage
Current (Note 7)ICOM_(ON)+ = 3.3V ; V N O_ or V N C _ = 3V , 0.3V , or
unconnected ; V C OM _ = 3V , 0.3V , or
unconnected E-2020nA
DYNAMIC CHARACTERISTICS+25°C3050Turn-On TimetONV+ = 2.7V, VNO_ or VNC_ = 1.5V;ns
ELECTRICAL CHARACTERISTICS—+3V SUPPLY(V+ = +2.7V to +3.3V, VIH= +1.4V, VIL= +0.5V, TA= TMINto TMAX, unless otherwise noted. Typical values are at +3V and +25°C.)
(Notes 3, 9, 10)
MAX4684/MAX4685
0.5ΩΩ/0.8ΩΩ
Low-Voltage, Dual SPDT
Analog Switches in UCSP
ELECTRICAL CHARACTERISTICS—+3V SUPPLY (continued)(V+ = +2.7V to +3.3V, VIH= +1.4V, VIL= +0.5V, TA= TMINto TMAX, unless otherwise noted. Typical values are at +3V and +25°C.)
(Notes 3, 9, 10)
PARAMETERSYMBOLCONDITIONSTAMINTYPMAXUNITS+25°C2530Turn-Off TimetOFFV+ = 2.7V, VNO_ or VNC_ = 1.5V;
RL = 50Ω; CL = 35pF; Figure 2E40ns
Break-Before-Make
DelaytBBMV+ = 2.7V, VNO_, or VNC_ = 1.5V;
RL = 50Ω; CL = 35pF; Figure 3E215ns
Charge InjectionQCOM_ = 0; RS = 0; CL = 1nF; Figure 4+25°C200pC
Off-Isolation (Note 8)VISOCL = 5pF; RL = 50Ω; f = 100kHz;
VCOM_ = 1VRMS; Figure 5+25°C-64dB
CrosstalkVCTCL = 5pF; RL = 50Ω; f = 100kHz;
VCOM_ = 1VRMS; Figure 5+25°C-68dB
Total Harmonic
DistortionTHDRL = 600Ω, IN_ = 2Vp-p, f = 20Hz to
20kHz+25°C0.03%
NC_ Off-CapacitanceCNC_(OFF) f = 1MHz; Figure 6+25°C84pF
NO_ Off-CapacitanceCNO_(OFF)f = 1MHz; Figure 6+25°C37pF
NC_ On-CapacitanceCNC_(ON)f = 1MHz; Figure 6+25°C190pF
NO_ On-CapacitanceCNO_(ON)f = 1MHz; Figure 6+25°C150pF
DIGITAL I/OInput Logic HighVIHE1.4V
Input Logic LowVILE0.5V
IN_ Input Leakage
CurrentIIN_VIN_ = 0 or V+E-11µA
POWER SUPPLYPower-Supply RangeV+E1.85.5V
+25°C-500.0450S up p l y C ur r ent ( N ote 4) I+V+ = 5.5V; VIN_ = 0 or V+E-200200nA
Note 3:The algebraic convention used in this data sheet is where the most negative value is a minimum and the most positive
value a maximum.
Note 4:Guaranteed by design.
Note 5:ΔRON= RON(MAX)- RON(MIN), between NC1 and NC2 or between NO1 and NO2.
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:Leakage parameters are 100% tested at TA= +85°C, and guaranteed by correlation over rated temperature range.
Note 8:Off-isolation = 20log10(VCOM/ VNO), VCOM= output, VNO= input to off switch.
Note 9:UCSP and TDFN parts are 100% tested at +25°C only and guaranteed by design and correlation at the full hot-rated
temperature.
Note 10:-40°C specifications are guaranteed by design.
MAX4684/MAX4685
0.5ΩΩ/0.8ΩΩ
Low-Voltage, Dual SPDT
Analog Switches in UCSP
Typical Operating Characteristics(TA = +25°C, unless otherwise noted.)
MAX4684
NC ON-RESISTANCE vs. COM VOLTAGE
MAX4684/5 toc01
VCOM (V)
V+ = +3.0V
V+ = +5.0V
V+ = +1.8V
V+ = +2.0V
V+ = +2.3V
V+ = +2.5V
NO ON-RESISTANCE vs. COM VOLTAGEMAX4684/5 toc03
VCOM (V)
V+ = +5.0V
V+ = +1.8V
V+ = +2.0V
V+ = +2.3V
V+ = +2.5V
V+ = +3.0V
MAX4685
NC ON-RESISTANCE vs. COM VOLTAGEMAX4684/5 toc02
VCOM (V)
V+ = +5.0V
V+ = +2.3V
V+ = +3.0V
V+ = +1.8V
V+ = +2.0V
V+ = +2.5V
MAX4684/5 toc04
MAX4684
NC ON-RESISTANCE vs. COM VOLTAGEVCOM (V)
TA = +85°C
V+ = +5V
TA = -40°C
TA = +25°C
MAX4684/5 toc06
NO ON-RESISTANCE vs. COM VOLTAGEVCOM (V)TA = +85°C
V+ = +5V
TA = -40°C
TA = +25°C
MAX4684/5 toc05
MAX4685
NC ON-RESISTANCE vs. COM VOLTAGEVCOM (V)
V+ = +5V
TA = +25°CTA = -40°C
TA = +85°C
MAX4684/5 toc07
MAX4684
NC ON-RESISTANCE vs. COM VOLTAGEV+ = +3V
TA = +85°C
TA = -40°C
TA = +25°C
MAX4684/5 toc09
NO ON-RESISTANCE vs. COM VOLTAGEV+ = +3V
TA = +85°C
TA = +25°C
TA = -40°C
MAX4684/5 toc08
MAX4685
NC ON-RESISTANCE vs. COM VOLTAGEV+ = +3V
TA = +85°C
TA = +25°C
TA = -40°C
MAX4684/MAX4685
0.5ΩΩ/0.8ΩΩ
Low-Voltage, Dual SPDT
Analog Switches in UCSPSUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX4684/5 toc10
VSUPPLY (V)
SUPPLY CURRENT (pA)
MAX4684/5 toc11
VSUPPLY (V)
tON
OFF
(ns)
TURN-ON/TURN-0FF TIMES
vs. SUPPLY VOLTAGEtON
tOFF
MAX4684/5 toc12
TURN-ON/TURN-0FF TIMES
vs. TEMPERATUREV+ = +3V
tON
OFF
(ns)
TEMPERATURE (°C)
tON
tOFF
LOGIC THRESHOLD VOLTAGE
vs. SUPPLY VOLTAGE
MAX4684/5 toc13
LOGIC THRESHOLD VOLTAGE (V)
VSUPPLY (V)
VIN RISING
VIN FALLING
CHARGE INJECTION vs. COM VOLTAGE
MAX4684/5 toc14
Q (pC)
VCOM (V)
MAX4684/5 toc15
TEMPERATURE (°C)
ON/OFF-LEAKAGE CURRENT (pA)
MAX4684
ON/OFF-LEAKAGE CURRENT
vs. TEMPERATURE
ICOM(ON)
ICOM(OFF)
MAX4684/5 toc16
ON/OFF-LEAKAGE CURRENT (pA)
MAX4685
ON/OFF-LEAKAGE CURRENT
vs. TEMPERATURE
ICOM(ON)
ICOM(OFF)
FREQUENCY RESPONSE (µMAX)LOSS (dB)
MAX4684/85 toc17
ON-
RESPONSE
OFF-
ISOLATION
CROSSTALK1001k10k100k
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCYMAX4684/5 toc18
THD + N (%)
0.1
ypical Operating Characteristics (continued)(TA = +25°C, unless otherwise noted.)
MAX4684/MAX4685
0.5ΩΩ/0.8ΩΩ
Low-Voltage, Dual SPDT
Analog Switches in UCSP
Detailed DescriptionThe MAX4684/MAX4685 are low on-resistance, low-
voltage, dual SPDT analog switches that operate from a
+1.8V to +5.5V supply. The devices are fully specified
for nominal 3V applications. The MAX4684/MAX4685
have break-before-make switching and fast switching
speeds (tON= 50ns max, tOFF= 40ns max).
The MAX4684 offers asymmetrical normally closed
(NC) and normally open (NO) RONfor applications that
require asymmetrical loads (examples include speaker
headsets and internal speakers). The part features a
0.5Ωmax RONfor its NC switch and a 0.8Ωmax RON
for its NO switch at the 2.7V supply. The MAX4685 fea-
tures a 0.8Ωmax on-resistance for both NO and NC
switches at the +2.7V supply.
Applications Information
Digital Control Inputs The MAX4684/MAX4685 logic inputs accept up to
+5.5V regardless of supply voltage. For example, with a
+3.3V supply, IN_ may be driven low to GND and high
to 5.5V. Driving IN_ rail-to-rail minimizes power con-
sumption. Logic levels for a +1.8V supply are 0.5V (low)
and 1.4V (high).
Analog Signal LevelsAnalog signals that range over the entire supply voltage
(V+ to GND) are passed with very little change in on-
resistance (see Typical Operating Characteristics). The
switches are bidirectional, so the NO_, NC_, and COM_
pins can be either inputs or outputs.
Power-Supply Sequencing and
Overvoltage Protection
Caution:Do not exceed the absolute maximum rat-
ings because stresses beyond the listed ratings
may cause permanent damage to devices.Proper power-supply sequencing is recommended for
all CMOS devices. Always apply V+ before applying
analog signals, especially if the analog signal is not
current limited. If this sequencing is not possible, and if
the analog inputs are not current limited to <20mA, add
a small signal diode (D1) as shown in Figure 1. Adding
a protection diode reduces the analog range to a diode
drop (about 0.7V) below V+ (for D1). RONincreases
slightly at low supply voltages. Maximum supply volt-
age (V+) must not exceed +6V. Protection diode D1
also protects against some overvoltage situations. No
damage will result on Figure 1’s circuit if the supply
voltage is below the absolute maximum rating applied
to an analog signal pin.
POSITIVE SUPPLY
COMNO
GND
MAX4684
MAX4685
Figure 1. Overvoltage Protection Using Two External Blocking
Diodes
PINNAMEUCSPµMAX/TDFNFUNCTIONNC_A1, C15, 7Analog Switch—Normally Closed Terminal
IN_A2, C24, 8Digital Control Input
COM_A3, C33, 9Analog Switch—Common Terminal
NO_A4, C42, 10Analog Switch—Normally Open TerminalB41Positive Supply Voltage Input
GNDB16Ground——Exposed Pad. Connect EP to GND (for TDFN only.)
Pin Description
