MAXIM MAX4575, MAX4576, MAX4577 User Manual

General Description

The MAX4575/MAX4576/MAX4577 are low-voltage, high electrostatic discharge (ESD)-protected, dual single-pole/single-throw (SPST) analog switches. The normally closed (NO) and normally open (NC) pins are protected against ±15kV ESD without latchup or damage. Each switch can handle Rail-to-Rail®analog signals. Off-leakage current is 0.5nA at +25°C. These analog switches are suitable for low-distortion audio applications and are the preferred solution over mechanical relays in automated test equipment or applications where current switching is required. They have low power requirements (0.5µW), require less board space, and are more reliable than mechanical relays. Each device is controlled by TTL/CMOS input voltage levels and is bilateral.

These switches feature guaranteed operation from a single supply of +2V to +12V, making them ideal for use in battery-powered applications. On-resistance is 70Ω (max), matched between switches to 0.5Ω (typ) and flat (2Ω typ) over the specified signal range.

The MAX4575 has two NO switches, the MAX4576 has two NC switches, and the MAX4577 has one NO and one NC switch. These devices are available in 8-pin µMAX and SO packages.

Applications

Battery-Powered Systems

Audio and Video Signal Routing

Low-Voltage Data-Acquisition Systems

Sample-and-Hold Circuits

Communications Circuits

Relay Replacement

____________________________Features

♦ ESD-Protected NO/NC Pins

±15kV (Human Body Model) ±15kV (IEC 1000-4-2 Air-Gap Discharge) ±8kV (IEC 1000-4-2 Contact Discharge)

♦ Pin Compatible with MAX4541/MAX4542/MAX4543

♦ Guaranteed On-Resistance

70Ω (max) at +5V 150Ω (max) at +3V

♦ On-Resistance Flatness

2Ω (typ) at +5V 6Ω (typ) at +3V

♦ On-Resistance Matching

0.5Ω (typ) at +5V

0.6Ω (typ) at +3V

♦ Guaranteed 0.5nA Leakage Current at T

= +25°C

♦ +2V to +12V Single-Supply Voltage

♦ TTL/CMOS-Logic Compatible

♦ Low Distortion: 0.015%

♦ -3dB Bandwidth >300MHz

♦ Rail-to-Rail Signal Range

MAX4575/MAX4576/MAX4577

±15kV ESD-Protected, Low-Voltage, Dual, SPST,

CMOS Analog Switches

________________________________________________________________ Maxim Integrated Products 1

19-1762; Rev 0; 7/00

For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800. For small orders, phone 1-800-835-8769.

Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.

Ordering Information

Pin Configurations/

Functional Diagrams/Truth Tables

Pin Configurations/Functional Diagrams/Truth Tables continued at end of data sheet.

PART TEMP. RANGE PIN-PACKAGE

MAX4575 EUA -40°C to +85°C 8 µMAX

MAX4575ESA -40°C to +85°C 8 SO

MAX4576 EUA -40°C to +85°C 8 µMAX

MAX4576ESA -40°C to +85°C 8 SO

MAX4577 EUA -40°C to +85°C 8 µMAX

MAX4577ESA -40°C to +85°C 8 SO

TOP VIEW

MAX4575

OFF

V+

IN1

COM2

NO2

NO1

COM1

IN2

GND

SO/µMAX

MAX4575

LOGIC SWITCH

0 1

SWITCHES SHOWN FOR LOGIC "0" INPUT

MAX4575/MAX4576/MAX4577

±15kV ESD-Protected, Low-Voltage, Dual, SPST, CMOS Analog Switches

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS—SINGLE +5V SUPPLY

(V+ = +4.5V to +5.5V, VIH= 2.4V, VIL= 0.8V, TA= T

MIN

to T

MAX

, unless otherwise specified. Typical values are at V+ = +5V,

= +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.

V+ to GND ..............................................................-0.3V to +13V

IN_, COM_, NO_, NC_ to GND (Note 1).......-0.3V to (V+ + 0.3V)

Continuous Current (NO_, NC_, COM).............................±10mA

Peak Current (NO_, NC_, COM_; pulsed at 1ms 10% duty

cycle) ................................................................................±30mA

ESD Protection per Method IEC 1000-4-2 (NO_, NC_)

Air-Gap Discharge .........................................................±15kV

Contact Discharge ...........................................................±8kV

ESD Protection per Method 3015.7

NO_, NC_ ...........................................................................±15kV

V+, GND, IN_, COM_ ........................................................±2.5kV

Continuous Power Dissipation (T

= +70°C)

8-Pin µMAX (derate 4.1mW/°C above +70°C) .............330mW

8-Pin SO (derate 8mW/°C above +70°C).....................640mW

Operating Temperature Range

MAX457_E_A ................................................-40°C to +85°C

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

Maximum Die Temperature..............................................+150°C

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

)

Note 1: Signals on NO_, NC_, COM_, or IN_ exceeding V+ or GND are clamped by internal diodes. Limit forward current to maximum

current rating.

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

ANALOG SWITCH

COM_

Input Voltage Range

On-Resistance R

NO_

NC_

V+ = +4.5V, I

COM_

NO_

= 1mA,

or V

NC_

= 3.5V

TA = +25°C4570

= T

MIN

to T

MAX

0V+V

Ω

On-Resistance Match Between Channels (Note 3)

On-Resistance Flatness (Note 4) R

Off-Leakage Current (NO_ or NC_) (Note 5)

COM_ Off-Leakage Current (Note 5)

COM_ On-Leakage Current (Note 5)

∆R

FLAT(ON

, I

NO_

NC_

C OM _( OFF)

COM_(ON

V+ = +4.5V, I

= 1mA,

COM_

or V

NO_

V + = + 4.5V , I V

N O_

or V

NC_

N C _

C OM _

= 1V ,

2.25V , 3.5V

V + = 5.5V

_ = 1V , 4.5V

C OM

_ or V

N O

_ = 4.5V , 1V

N C

V + = 5.5V V

_ = 1V , 4.5V

C OM

_ or V

N O

_ = 4.5V , 1V

N C

V+ = 5.5V V

_ = 1V, 4.5V

COM

_ or VNC_ = 1V,

4.5V or floating

= 3.5V

= 1m A,

TA = +25°C 0.5 2

= T

MIN

to T

MAX

TA = +25°C24

= T

MIN

to T

MAX

TA = +25°C -0.5 0.01 0.5

= T

M IN

to T

M AX

-5 5

TA = +25°C -0.5 0.01 0.5

= T

M IN

to T

M AX

-5 5

TA = +25°C -1 0.02 1

= T

M IN

to T

M AX

-10 10

Ω

MAX4575/MAX4576/MAX4577

±15kV ESD-Protected, Low-Voltage, Dual, SPST,

CMOS Analog Switches

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS—SINGLE +5V SUPPLY (continued)

(V+ = +4.5V to +5.5V, VIH= 2.4V, VIL= 0.8V, TA= T

MIN

to T

MAX

, unless otherwise specified. Typical values are at V+ = +5V,

= +25°C.) (Note 2)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

LOGIC INPUT

IN_ Input High V

IN_ Input Low V

Logic Input Leakage I

VIN = 0 or V+ -1 1 µA

SWITCH DYNAMIC

Turn-On Time

Turn-Off Time

OFF

Break-Before-Make (MAX4577 only)

On-Channel Bandwidth -3dB BW

Charge Injection Q V

NO_ or NC_ Off-Capacitance C

COM_ Off-Capacitance C

COM_ On-Capacitance C

Off-Isolation (Note 7) V

Crosstalk (Note 8) V

OFF

C OM ( OFF) VC OM

C OM ( ON )

ISO

COM

= 300Ω, CL = 35pF,

Figure 1

COM

= 300Ω, CL = 35pF,

Figure 1

COM

= 300Ω, CL = 35pF

S i g nal = 0d Bm , R Fi g ur e 2

GE N

VNO_ = VNC_ = GND, f = 1MHz, Figure 4

C OM

RL = 5 0Ω , C L = 5 p F , f = 1M H z , Fi g ur e 2 -75

RL = 5 0Ω , C L = 5 p F , f = 10 M H z, Fi g u r e 2 -45

RL = 5 0Ω , C L = 5 p F , f = 1M H z , Fi g ur e 6 -90

RL = 5 0Ω , C L = 5 p F , f = 10 M H z, Fi g u r e 6 -70

Total Harmonic Distortion THD RL = 6 00 Ω , f = 2 0H z to 20 kH z 0.015 %

ESD SCR Holding Current I

ESD SCR Holding Voltage V

POWER SUPPLY

Power-Supply Range V+ 2 12 V

Positive Supply Current I+

V+ = 5.5V,

= 0 or V+

2.4 V

0.8 V

_ = 3V,

= R

I N

= 2V , C L = 1.0nF, R

TA = +25°C 90 150

= T

M IN

to T

M AX

180

TA = +25°C5080

= T

M IN

to T

M AX

100

TA = +25°C545

= T

= 50Ω , C L = 5p F,

OU T

GE N

to T

M IN

M AX

= 0, Fi g ur e 3 4 pC

300 MHz

20 pF

_ = GND, f = 1MHz, Figure 4 12 pF

_ = VNO_, VNC_ = GND, f = 1MHz,

20 pF

110 mA

TA = +25°C1

= T

M IN

to T

M AX

µA

MAX4575/MAX4576/MAX4577

±15kV ESD-Protected, Low-Voltage, Dual, SPST, CMOS Analog Switches

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS—SINGLE +3V SUPPLY

(V+ = +2.7V to +3.6V, VIH= 2.0V, VIL= 0.6V, TA= T

MIN

to T

MAX

, unless otherwise specified. Typical values are at TA= +25°C.) (Note 2)

)

Note 2: The algebraic convention, where the most negative value is a minimum and the most positive value is a maximum, is used

in this data sheet.

Note 3: ∆R

= R

ON(MAX)

- R

ON(MIN)

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

the specified analog signal ranges.

Note 5: Leakage parameters are 100% tested at T

A(MAX

), and guaranteed by correlation at +25°C.

Note 6: Off-Isolation = 20log

10(VCOM

/ VNO), V

COM

= output, VNO= input to off switch.

Note 7: Between any two switches. Note 8: Guaranteed by design.

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

ANALOG SWITCH

COM_

Input Voltage Range

NO_

NC_

0V+V

On-Resistance R

On-Resistance Match Between Channels (Notes 3, 8)

On-Resistance Flatness (Notes 4, 8)

∆R

FLAT(ON

V+ = 2.7V;

= 1mA;

COM_

or V

N O_

V + = 2.7V ; I V

or V

N O_

V + = 2.7V ; I

or V

N O_

1.5V , 2.2V

N C _

C OM _

N C _

C OM _

N C _

= 1.5V

= 1m A;

= 1.5V

= 1m A;

= 0.5V ,

TA = +25°C 70 120

= T

MIN

to T

MAX

TA = +25°C 0.6 3

= T

MIN

to T

MAX

TA = +25°C612

= T

MIN

to T

MAX

LOGIC INPUT

IN_ Input High V

IN_ Input Low V

Logic Input Leakage Current I

VIN = 0 or V+ -1 1 µA

2.0 V

SWITCH DYNAMIC CHARACTERISTICS

_ = 1.5V,

Turn-On Time t

COM

L = 300Ω

CL = 35pF

Figure 1

Turn-Off Time t

OFF

_ = 1.5V,

COM

= 300Ω, CL = 35pF,

Figure 1

Break-Before-Make (MAX4577 only)

Charge Injection Q

ESD SCR Holding Current I

ESD SCR Holding Voltage V

_ = 1.5V,

COM

= 300Ω, CL = 35pF

= 1.5V, CL = 1.0nF, R

GEN

Figure 3

TA = +25°C 150 250

= T

MIN

to T

MAX

TA = +25°C 60 100

= T

MIN

to T

MAX

TA = +25°C5

= T

GEN

MIN

= 0,

to T

MAX

5pC

110 mA

POWER SUPPLY

Power-Supply Range V+ 2 12 V

Positive Supply Current I+

V+ = 3.6V,

= 0 or V+

TA = +25°C1

= T

MIN

to T

MAX

150

0.6 V

300

150

Ω

µA

+ 8 hidden pages