MAXIM MAX14504, MAX14505, MAX14505A, MAX14506 Technical data

General Description

The MAX14504/MAX14505/MAX14505A/MAX14506
dual single-pole/double-throw (SPDT) audio switches
feature negative signal capability that allows signals
from -VCCto +VCCto pass without distortion. They fea­ture high continuous current ratings of 550mA (continu­ous) and 850mA (pulsed). These analog switches have
low on-resistance, low supply current, and operate from
a single +2.3V to +5.5V supply.

The MAX14505/MAX14505A have internal shunt switches
that discharge the audio amplifier AC-coupling capaci­tance at the normally open (NO) terminals. This reduces
click-and-pop sounds that occur when switching audio
signals between precharged points. The MAX14504/
MAX14505/MAX14505A/MAX14506 control the switches
with control bit, CB, and feature an enable input, EN, that
place COM in a high-impedance mode.

The MAX14504/MAX14505/MAX14505A/MAX14506 are
fully specified to operate from a single +2.3V to +5.5V
power supply. These devices are available in a 1.56mm
x 2.14mm, 12-bump WLP package, and operate over
the -40°C to +85°C extended temperature range.

Applications

Cell Phones

MP3 Players

Portable Audio Equipment

Speaker Switching

Features

o Distortion-Free Negative Signal Throughput from

-VCCto +V

CC

o Internal Shunt Switches Reduce Click/Pop

(MAX14505/MAX14505A)

o Low On-Resistance 0.36Ω (typ)

o 1mΩ (typ) On-Resistance Flatness
o COM High Impedance for EN = High

o Low 0.2µA (max) Shutdown Current

(MAX14505A/MAX14506)

o +2.3V to +5.5V Single-Supply Voltage

o Small, 1.56mm x 2.14mm, 12-Bump WLP Package

MAX14504/MAX14505/MAX14505A/MAX14506

Dual SPDT Negative Rail Analog Switches

with ±V

CC

Capability

________________________________________________________________

Maxim Integrated Products

1

Pin Configuration

Ordering Information/Selector Guide

19-4244; Rev 1; 12/08

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.

EVALUATION KIT

AVAILABLE

PART PIN-PACKAGE TOP MARK

COM SIGNAL RANGE FOR

EN = V

CC

CLICKLESS

MAX14504EWC+ 12 WLP AAH ±V

CC

NO

MAX14505EWC+* 12 WLP AAI ±V

CC

YES

MAX14505AEWC+ 12 WLP AAK 0 to +V

CC

YES

MAX14506EWC+* 12 WLP AAJ 0 to +V

CC

NO

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

+

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

*

Future product—contact factory for availability.

Typical Operating Circuit appears at end of data sheet.

MAX14504/

TOP VIEW

(BUMPS ON BOTTOM)

1

+

NO2

A

COM2 GND COM1

B

MAX14505/

MAX14505A/

MAX14506

234

NEG

V

EN

NO1

CC

NC2 NC1

C

(1.56mm x 2.14mm)

CB

WLP

GND

MAX14504/MAX14505/MAX14505A/MAX14506

Dual SPDT Negative Rail Analog Switches
with ±V

CC

Capability

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VCC= +2.3 to +5.5V, TA= T

MIN

to T

MAX,CNEG

= 3.3nF, unless otherwise noted. Typical values are at VCC= +3.0V, TA= +25°C,

unless otherwise noted.) (Note 3)

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: Signals on NC_, NO_, and COM_ exceeding -VCCor +VCCare clamped by internal diodes. For EN ≥ VIHsignals on NC_,

NO_, and COM_ exceeding 0 or +V

CC

are clamped by internal diodes (MAX14505A/MAX14506). Limit forward-diode current

to maximum current rating.

Note 2: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a 4-layer

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

.

(All voltages referenced to GND, unless otherwise noted.)
V

CC

........................................................................-0.3V to +6.0V

NC_, NO_, COM_ (Note 1)..................-V

CC

- 0.3V to VCC+ 0.3V

NC_, NO_, COM_ (MAX14505A/MAX14506, EN = V

CC

)

(Note 1).......................................................-0.3V to V

CC

+ 0.3V

CB, EN......................................................................-0.3V to +6V

Continuous Current (NC_, NO_, COM_).........................±550mA

Continuous Current on Shunt Switches ..............................±5mA

Peak Current (NC_, NO_, COM_)

(pulsed at 1ms, 10% duty cycle)..................................±850mA

Continuous Power Dissipation (T

A

= +70°C) for multilayer board:

12-Pin WLP (derate 8.5mW/°C above +70°C) ..............678mW

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

Junction Temperature......................................................+150°C

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

Package Junction-to-Ambient Thermal

Resistance (θ

JA

) (Note 2)............................................118°C/W

Lead Temperature (soldering) .........................................+300°C

)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

ANALOG SWITCH

V EN = 0 -V

Analog Signal Range

On-Resistance R

On-Resistance Match
Between Channels

On-Resistance Flatness R

Shunt Switch Resistance R

NC_, NO_,

COM_

ON

∆R

ON

FLAT (ON

SHUNT

V

= V

EN

CC

VCC = +3.0V,

= 50mA,

I

COM_

V

, V

NC_

-V

CC

VCC = +3.0V, I
between NC_ and NO_ only

VCC = +3.0V, I
V

NC_

V

NO_

=

NO_

to V

CC

NC_

, V

= +100mV

NC_

= -VCC to VCC (Note 4)

NO_

(MAX14504/
MAX14505)

(MAX14505A/
MAX14506)

TA = +25°C 0.36 0.5

= I

= I

NO_

NO_

TA = T
T

MAX

= 50mA;

= 50mA,

MIN

to

CC

-V

CC

0+V

10 mΩ

1mΩ

15 55 120 Ω

+V

+V

0.65

CC

CC

CC

V

Ω

MAX14504/MAX14505/MAX14505A/MAX14506

Dual SPDT Negative Rail Analog Switches

with ±V

CC

Capability

_______________________________________________________________________________________ 3

(

)

)

(

(

(ON)

ELECTRICAL CHARACTERISTICS (continued)

(VCC= +2.3 to +5.5V, TA= T

MIN

to T

MAX,CNEG

= 3.3nF, unless otherwise noted. Typical values are at VCC= +3.0V, TA= +25°C,

unless otherwise noted.) (Note 3)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

NC_ or NO_ Off-Leakage
Current

COM_ On-Leakage
Current

DYNAMIC TIMING (Note 5)

Turn-On Time t

Turn-Off Time t

AUDIO PERFORMANCE

Total Harmonic Distortion Plus
Noise

Off-Isolation V

Crosstalk V

NC_ or NO_ Off-Capacitance

COM_ On-Capacitance C

LOGIC INPUT (CB, EN)

Input Logic-High V

Input Logic-Low V

Input Leakage Current I

INC_

I

NO_ (OFF

I

COM_ (ON

THD+N

C

N C

C

N O

COM

ON

OFF

ISO

CT

_
_

_

IH

IL

IN

VCC = +3.0V, switch open;

= -2.5V, +2.5V;

V

NO_

V

= +2.5V, -2.5V, unconnected

COM_

,

OF F)

(MAX14504/MAX14506)

VCC = +3.0V, switch open;

= -2.5V, +2.5V;

V

NC_

V

= +2.5V, -2.5V, unconnected

COM_

V

= + 3.0V , sw i tch cl osed ;

C C

= + 2.5V , - 2.5V ;

V

C OM _

V

or V

N C _

V

NO_

V

NO_

f = 20Hz to 20kHz, V

= RL = 50Ω; DC bias = 0

R

S

RS = RL = 50Ω; V
f = 20kHz (Note 6), Figure 2

RS = RL = 50Ω; V
f = 20kHz (Note 7), Figure 2

,

OF F)

V

OF F)

NC_/NO_

V

NC_/NO_

VCB = V EN = 0 or V

= + 2.5V , - 2.5V , unconnected

N O_

or V

or V

= 0, RL = 50Ω, Figure 1 14 60 ms

NC_

= 0, RL = 50Ω, Figure 1 1.5 3 µs

NC_

COM

COM

= 0.5V

P-P

= 0.5V

P-P

= 0.5V

COM_

_ = 0.5V

_ = 0.5V

, f = 1MHz; Figure 3 65 pF

, f = 1MHz; Figure 3 125 pF

CC

P-P

P-P

P-P

,

,

,

-50 +50

-50 +50

-100 +100 nA

1.4 V

-1 +1 µA

0.001 %

-84 dB

-90 dB

0.5 V

nA

MAX14504/MAX14505/MAX14505A/MAX14506

Dual SPDT Negative Rail Analog Switches
with ±V

CC

Capability

4 _______________________________________________________________________________________

Note 3: All parameters are production tested at TA= +85°C, and guaranteed by design over the specified temperature range.
Note 4: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the

specified analog signal range.

Note 5: All timing is measured using 20% and 80% levels.
Note 6: Off-Isolation = 20log

10[VCOM_

/(V

NO_

or V

NC_

)], V

COM_

= output, V

NO_

or V

NC_

= input to off switch.

Note 7: Between any two switches.

ELECTRICAL CHARACTERISTICS (continued)

(VCC= +2.3 to +5.5V, TA= T

MIN

to T

MAX,CNEG

= 3.3nF, unless otherwise noted. Typical values are at VCC= +3.0V, TA= +25°C,

unless otherwise noted.) (Note 3)

0

0.3

0.2

0.1

0.4

0.5

0.6

0.7

0.8

0.9

1.0

-2.30 -1.15 0 1.15 2.30

ON-RESISTANCE vs. V

COM

MAX14504 toc01

V

COM

(V)

R

ON

(Ω)

VCC = 2.3V

TA = +85°C TA = +25°C TA = -40°C

0

0.3

0.2

0.1

0.4

0.5

0.6

0.7

0.8

0.9

1.0

-3 -1-2 0123

ON-RESISTANCE vs. V

COM

MAX14504 toc02

V

COM

(V)

R

ON

(Ω)

VCC = 3.0V

TA = +85°C TA = +25°C TA = -40°C

0

0.2

0.1

0.5

0.4

0.3

0.6

0.7

0.9

0.8

1.0

-5.5 -3.5-2.5-4.5 -1.5 -0.5 0.5 1.5 2.5 3.5 4.5 5.5

ON-RESISTANCE vs. V

COM

V

COM

(V)

R

ON

(Ω)

VCC = 5.5V

MAX14504 toc03

TA = +85°C TA = +25°C TA = -40°C

Typical Operating Characteristics

(VCC= 3.0V, TA = +25°C, unless otherwise noted.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

POWER SUPPLY

Power-Supply Range V

Power-Supply Rejection Ratio
(PSRR)

VCC Supply Current I

VCC Shutdown Supply Current I

Supply Current Increase with
Supply Voltage

Negative Charge-Pump Output V

CC

R

CC

VCC = +3.0V, V EN = 0, VCB = 0 or V

VCC = +5.5V, V EN = 0, VCB = 0 or V

VCC = +3.0V, V EN = V
(MAX14504/MAX14505)

VCC = +5.5V, V EN = V
(MAX14504/MAX14505)

CC_SHDN

VCC = +3.0V, V EN = V
(MAX14505A/MAX14506)

VCC = +5.5V, V EN = V
(MAX14505A/MAX14506)

I

CC_CTRLVCC

NEG

C

= 50Ω, f = 10kHz 78 dB

COM_

= 5.5V, VCB = V EN = 0.5V or 1.4V 2 5 µA

= 3.3nF - 1.01V

NEG

CC

CC

CC

CC

CC

CC

2.3 5.5 V

12 23

21 41

µA

15

29

µA

0.15

0.2

C C -VCC

- 0.95V

C C

V