MAXIM MAX14535E, MAX14539E User Manual

General Description

The MAX14535E–MAX14539E are low on-resistance
and high ESD-protected DPDT switches that multiplex
analog signals, such as AC-coupled audio or video.
These devices combine the low on-capacitance (C

ON

)
and low on-resistance (RON) necessary for high-perfor­mance switching applications in portable electronics,
and include an internal negative supply to pass audio
signals that swing below ground (down to -1.5V).

The MAX14535E/MAX14537E/MAX14539E feature inter­nal shunt resistors on the normally open path (and nor­mally closed path, (MAX14539E)) to reduce clicks and
pops heard at the output. The MAX14535E–
MAX14539E have an enable input (EN) to reduce sup­ply current and set all channels to high-impedance
when driven low. When EN is driven low, the
MAX14537E/MAX14538E have the lowest possible cur­rent consumption, but cannot withstand negative rail
signals. The MAX14535E/MAX14536E/MAX14539E can
still withstand a negative signal to NC_, NO_, or COM_
from -1.5V to min (VCC, 3V.)

The MAX14535E–MAX14539E operate from a +2.4V to
+5.5V supply. These devices can be powered from the
typical analog supply voltage in a cell phone (+2.5V to
+2.8V) or a lithium-ion (Li+) battery (about 4.3V max).
The MAX14535E–MAX14539E have high ESD protec­tion, up to ±15kV on COM_, and the NC_, NO_, and
COM_ voltage can go up to 3.6V when V

CC

= 0 without

damaging the devices.

All devices are offered in a space-saving, 10-pin,

1.4mm x 1.8mm UTQFN package, and operate over the

-40°C to +85°C extended temperature range.

Applications

Features

o Low 0.135Ω (typ) On-Resistance

o Low 0.3mΩ (typ) R

ON

Flatness

o Single +2.4V to +5.5V Supply Voltage

o Pass Audio Signal Between -1.5V and min (V

CC

,

3V)

o Internal Shunt Resistors for Click-and-Pop

Reduction (MAX14535E/MAX14537E/MAX14539E)

o Withstand 3.6V (max) Applied to NC_, NO_, and

COM_ when V

CC

= 0V

o High ESD Protection: Up to ±15kV on COM_

o 10-Pin UTQFN (1.4mm x 1.8mm) Package

o -40°C to +85°C Operating Temperature Range

MAX14535E–MAX14539E

Low-Resistance DPDT Switches

with Negative Rail

________________________________________________________________

Maxim Integrated Products

1

Ordering Information/Selector Guide

Pin Configuration

19-4461; Rev 1; 4/09

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.

PART

PIN-PACKAGE

TOP MARK

SHUNT RESISTORS

SHUTDOWN MODE

(EN = LOW)

SIGNAL RANGE

MAX14535EEVB+ 10 UTQFN AAS NO1, NO2 Terminals -1.5V to min (VCC, 3V)

MAX14536EEVB+ 10 UTQFN AAT ⎯ -1.5V to min (VCC, 3V)

MAX14537EEVB+* 10 UTQFN AAU NO1, NO2 Terminals 0 to V

CC

MAX14538EEVB+* 10 UTQFN AAV ⎯ 0 to V

CC

MAX14539EEVB+* 10 UTQFN AAW NO_ and NC_ Terminals -1.5V to min (VCC, 3V)

Note: All devices are specified over the -40°C to +85°C temperature range.

+

Denotes a lead(Pb)-free package/RoHS-compliant package.

*

Future product—contact factory for availability.

Typical Operating Circuits appear at end of data sheet.

Cell Phones

MP3 Players

Notebook Computers

PDAs

TOP VIEW

CC

V

GND

7

8NC1

9COM1

MAX14535E–

10NO1

+

6

MAX14539E

1

2

CB

UTQFN

5 NC2

4 COM2

3 NO2

EN

MAX14535E–MAX14539E

Low-Resistance DPDT Switches
with Negative Rail

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VCC= +2.4V to +5.5V, TA= -40°C to +85°C, unless otherwise noted. Typical values are at VCC= +3.0V, 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: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7 using a four-

layer board. For detailed information on package thermal considerations, refer to www.maxim-ic/thermal-tutorial

.

(Voltages referenced to GND.)
V

CC

, CB, EN ..........................................................-0.3V to +6.0V

NO_, NC_, COM_ (V

CC

> 2.4V, MAX14535E/

MAX14536E/MAX14539E).................................-1.8V to +3.6V

NO_, NC_, COM_ (V

CC

< 2.4V, MAX14535E/

MAX14536E/MAX14539E).................................-0.3V to +3.6V

NO_, NC_, COM_ (V

EN

< VIL, MAX14537E/

MAX14538E)......................................................-0.3V to +6.0V

NO_, NC_, COM_ (V

EN

> VIL, VCC> 2.4V,

MAX14537E/MAX14538E).................................-1.8V to +3.6V

NO_, NC_, COM_ (V

EN

< VIL, VCC< 2.4V,

MAX14537E/MAX14538E).................................-0.3V to +3.6V

Continuous Current into NO_, NC_, COM_ Terminals....±300mA

Peak Current into NO_, NC_,

COM_ Terminals (50% duty cycle).............................±500mA

Continuous Power Dissipation (T

A

= +70°C)

10-Pin UTQFN (derate 6.9mW/°C above +70°C).........559mW

Junction-to-Ambient Thermal Resistance (

θ

JA

) (Note 1)..143.1°C/W

Junction-to-Case Thermal Resistance (

θ

JC

) (Note 1)...20.1°C/W

Operating Temperature Range ...........................-40°C to +85°C

Storage Temperature Range .............................-65°C to +150°C

Junction Temperature Range ............................-40°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

)

Power-Supply Range V

Supply Current I

Supply Current Increase with
Logic Level

Analog Signal Range

On-Resistance R

On-Resistance Match Between
Channels

On-Resistance Flatness R

Shunt Switch Resistance R

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

CC

MAX14537E/MAX14538E,

VCC =

3.0V

V

MAX14535E/MAX14536E/
M AX 14539E , V

CC

VCC =

5.5V

MAX14537E/MAX14538E,
V

MAX14535E/MAX14536E/
M AX 14539E , V

V

= 0.4V or 1.4V, VCB = 0.4V or 1.4V 5 µA

EN

MAX14537E/MAX14538E,
V

< V

EN

IL

MAX14537E/MAX14538E,
V

> V

EN

IH

MAX14535E/MAX14536E/MAX14539E -1.5

ON

∆R

ON

FLAT(ON

SH

VCC = 3.0V, V
I

= 100mA or I

NO_

VCC = 3.0V, V
(Note 3)

VCC = 3.0V, I
V

= -1.5V to +3.0V (Note 4)

COM_

I

or I

NO_

NC_

2.4 5.5 V

EN

EN

= 0

= 0

E N

E N

= 0, V

= 0, V

E N

E N

= V

= V

C C

C C

815

12 25

0V

1

1

CC

Min

-1.5

(3.0V,

V

CC

)

Min

(3.0V,

)

V

CC

= -1.5V, 3.0V;

COM_

COM_

COM_

= 100mA

NC_

= 0; I

= 100mA;

COM_

= 100mA

0.135 0.35 Ω

0.05 Ω

0.3 1 mΩ

= 1mA 500 1000 Ω

µA

V

MAX14535E–MAX14539E

Low-Resistance DPDT Switches

with Negative Rail

_______________________________________________________________________________________ 3

Note 2: Devices are production tested at TA= +25°C. Specifications over temperature limits are guaranteed by design.
Note 3: ∆R

ON(MAX)

= |R

ON(CH1)

- R

ON(CH2)

|

Note 4: Flatness is defined as the difference between the maximum and minimum value of on-resistance, as measured over speci-

fied analog signal ranges. These values are guraranteed by design.

Note 5: Between two switches.

)

)

)

)

ELECTRICAL CHARACTERISTICS (continued)

(VCC= +2.4V to +5.5V, TA= -40°C to +85°C, unless otherwise noted. Typical values are at VCC= +3.0V, TA= +25°C.) (Note 2)

NC_ or NO_ Off-Leakage Current I

COM_ Off-Leakage Current I

COM_ On-Leakage Current I

AC CHARACTERISTICS

Turn-On Time t

Turn-Off Time t

Break-Before-Make Time Delay t

Off-Isolation V

Crosstalk V

NC_ -3dB Bandwidth BW

NO_ -3dB Bandwidth BW

Power-Supply Rejection Ratio PSRR

Total Harmonic Distortion THD

COM_ On-Capacitance C

NC_, NO_ Off-Capacitance C

LOGIC INPUT

Input Logic-High V

Input Logic-Low V

Input Leakage Current I

ESD PROTECTION

All Pins Human Body Model ±2 kV

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

N C _ ,N O_( OFF)

COM_(OFF

COM_(ON

ON

OFF

Switch open, VEN = VCC, V
0 or 2.5V, V

COM_

= 0V or 2.5V

VEN = 0, VCC = 3.0V, V
V

= V

NC_

VCC = 0, V

NO_

COM_

= 0

= 3.6V, V

unconnected

V

= 3.0V , V

C C

or V

= - 1.5V , 2.5V or unconnected

N O_

VCC = 3.0V, V

= 50Ω , C L = 100p F, ( V

R

L

(V

= VCC and VCB transitions), Figure 1

EN

VCC = 3.0V, V

= 100p F, (VEN = V

50Ω, C

L

= - 1.5V or + 2.5V , V

C OM _

or V

NC_

NC_

or V

NO_

NO_

NO_

= 3.0V,

COM_

NC_

= 1.5V,
= 0 to V

E N

= 1.5V, RL =

CC

or V

NC_

= V

NO_

C C

to 0) or (V

=

N C _

) or

=

-10 +10 nA

-10 +10 nA

-1.5 +1.5 mA

-100 +100 nA

40 90 µs

EN

18 40 µs

= VCC and VCB transitions), Figure 1

D

ISO

CT

NC_

NO_

COM_(ON

NC _,N O_( OFF

IH

IL

IN

= V

NC_

f = 100kHz, V
Figure 3

f = 100kHz, V
Figure 3 (Note 5)

RS = RL = 50Ω , V

RS = RL = 50Ω , V

f = 10kHz, V
R

COM_

f = 20Hz to 20kHz, V
DC bias = 0, R

f = 1MHz, V

f = 1MHz, V

VCB = 0 or VCC, VEN = 0V or V

= 1.5V, RL = 50Ω, Figure 2 28 µs

NO_

= 0dBm, RL = 50Ω,

= 50Ω

COM_

= 0dBm, RL = 50Ω,

COM_

= 0d Bm , Fi g ur e 3a–3d 100 MHz

N O_

= 0d Bm , Fi g ur e 3a–3d 100 MHz

N O_

= 3V ± 0.3V,

CC

COM_

= 32Ω

L

= 0.5V

COM_

= 0.5V

COM_

= 0.5V

, DC bias = 0 15 pF

P-P

, DC bias = 0 30 pF

P-P

P-P

,

-70 dB

-80 dB

90 dB

0.003 %

1.4 V

CC

-1 +1 µA

0.4 V

V

Human Body Model ±15

IEC 61000 Air-Gap Discharge ±15COM1, COM2

IEC 61000 Contact Discharge ±8

kV

MAX14535E–MAX14539E

Low-Resistance DPDT Switches
with Negative Rail

4 _______________________________________________________________________________________

Figure 1. Switching Time

Figure 2. On-Loss, Off-Isolation, and Crosstalk

COM_

R

L

L

)

ON

V

OUT

C

L

LOGIC
INPUT

NO_

V

IN

or NC_

CB

MAX14535E–MAX14539E

CL INCLUDES FIXTURE AND STRAY CAPACITANCE.

V

OUT

RL + R

= V

IN_ (

R

V

IN

V

OUT

MEAS REF

50Ω

NC1

COM1

MAX14535E–

MAX14539E

NO1*

V

LOGIC
INPUT

SWITCH
OUTPUT

NETWORK

ANALYZER

50Ω

50Ω 50Ω

IH

V

0V

50Ω

IL

tR < 5ns
t

< 5ns

t

OFF

F

0.1 x V

V

V

OUT

V

OUT

V

IN

OUT

V

IN

OUT

V

IN

50%

V

OUT

0.9 x V

0UT

t

ON

CONTROL DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.

OFF-ISOLATION = 20log

ON-LOSS = 20log

CROSSTALK = 20log

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.

*FOR CROSSTALK THIS PIN IS NO2.
NC2 AND COM2 ARE OPEN.