MAXIM MAX4677, MAX4678, MAX4679 Technical data

General Description

The MAX4677/MAX4678/MAX4679 quad analog switches feature 1.6Ω max on-resistance (RON) when operating from a dual ±5V supply. RONis matched between channels to 0.3Ω max and is flat (0.4Ω max) over the specified signal range. Each switch can handle Rail-toRail®analog signals. Off-leakage current is 0.1nA at +25°C. These switches are ideal in low-distortion applications and are the preferred solution over mechanical relays in automated test equipment. They have low power requirements, require less board space, and are more reliable than mechanical relays.

The MAX4677 has four normally closed (NC) switches, and the MAX4678 has four normally open (NO) switches. The MAX4679 has two NC and two NO switches and features guaranteed break-before-make switching.

The MAX4677/MAX4678/MAX4679 operate from either a single +2.7V to +11V or dual ±2.7V to ±5.5V supplies, making them ideal for use in digital card applications and single-ended 75Ω systems.

These devices feature a separate logic supply input that operates from +2.7V to V+, allowing independent logic and analog supplies.

________________________Applications

Features

♦ On-Resistance 1.6Ω max

♦ On-Resistance Flatness 0.4Ω max

♦ On-Resistance Matching 0.3Ω max

♦ Dual ±2.7V to ±5.5V or Single +2.7V to +11V

Supply Range

♦ TTL/CMOS-Logic Compatible

♦ Crosstalk -84dB at 1MHz

♦ Off-Isolation -65dB at 1MHz

♦ -3dB Bandwidth: 66MHz

♦ Rail-to-Rail Signal Range

MAX4677/MAX4678/MAX4679

2Ω, Quad, SPST, CMOS Analog Switches

________________________________________________________________ Maxim Integrated Products 1

______________________Pin Configurations/Functional Diagrams/Truth Tables

19-1713; Rev 0; 4/00

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.

Ordering Information

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

Reed Relay Replacement Test Equipment Communications Systems Audio Signal Routing

Avionics ADC Systems Data-Acquisition Systems PBX/PABX Systems

PART TEMP. RANGE PIN-PACKAGE

MAX4677EUE -40°C to +85°C 16 TSSOP

MAX4677EPE -40°C to +85°C 16 DIP

MAX4678EUE -40°C to +85°C 16 TSSOP

MAX4678EPE -40°C to +85°C 16 DIP

MAX4679EUE -40°C to +85°C 16 TSSOP

MAX4679EPE -40°C to +85°C 16 DIP

TOP VIEW

IN1

COM1

NC1

GND

NC4

COM4

IN4

1

2

3

V-

4

5

6

7

8

LOGIC SWITCH

MAX4677

DIP/TSSOP

MAX4677

0 1

ON

OFF

16

IN2

COM2

15

NC2

14

13

V+

VL

12

11

NC3

10

COM3

9

IN3

1

IN1

2

COM1

3

NO1

V-

4

MAX4678

5

GND

6

NO4

7

COM4

8

IN4

DIP/TSSOP

MAX4678

LOGIC SWITCH

0 1

SWITCHES SHOWN FOR LOGIC "0" INPUT

OFF

ON

16

IN2

15

COM2

14

NO2

13

V+

12

VL

11

NO3

10

COM3

9

IN3

IN1

COM1

NO1

GND

NO4

COM4

IN4

V-

1

2

3

4

5

6

7

8

LOGIC

0 1

MAX4679

DIP/TSSOP

MAX4679

SWITCHES

1, 4

OFF ON

16

IN2

15

COM2

14

NC2

13

V+

12

VL

11

NC3

10

COM3

9

IN3

SWITCHES

2, 3

ON

OFF

MAX4677/MAX4678/MAX4679

2Ω, Quad, SPST, CMOS Analog Switches

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS–Dual Supplies

(V+ = +5V ±10%, V- = -5V ±10%, VL= +2.7V to V+, GND = 0, VIH= +2.4V, VIL= +0.8V, TA= T

MIN

to T

MAX

, unless otherwise noted.

Typical values are at T

A

= +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 +12V

V- to GND ...............................................................+0.3V to -12V

V+ to V- ................................................................................+12V

V

L

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

V

COM_

,

V

NC_

,

V

NO_

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

Current (any terminal).......................................................±50mA

Continuous Current (COM_, NC_, NO_).........................±100mA

Peak Current (COM_, NC_, NO_

pulsed at 1ms 10% duty cycle) .................................±200mA

Continuous Power Dissipation (T

A

= +70°C) 16-Pin Plastic DIP (derate 10.5mW/°C above +70°C)..842mW

16-Pin TSSOP (derate 5.7mW/°C above +70°C)..........457mW

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

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

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

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

)

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

maximum current rating.

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

ANALOG SWITCH

Input Voltage Range

On-Resistance R

On-Resistance Match Between Channels (Note 3)

On-Resistance Flatness (Note 4)

NC_ or NO_ Off-Leakage Current (Note 5)

COM_ Off-Leakage Current (Note 5)

COM_ On-Leakage Current (Note 5)

LOGIC INPUT

Input Logic High V

Input Logic Low V

Input Leakage Current I

V

COM

_, VNC_

V

NO

ON

∆R

ON

R

FLAT

I

N_(OFF)

ICOM_(OFF

I

COM_(ON

IH

IL

IN

_,

V+ = 4.5V, V- = -4.5V,

_ = 50mA,

I

COM

V

_ or VNC_ = ±3.3V

NO

V+ = 4.5V, V- = -4.5V, I

_ = 50mA, VNO_ or

COM

_ = ±3.3V

V

NC

V+ = 4.5V, V- = -4.5V, I

_ = 50mA, VNO_ or

COM

_ = ±3.3V, 0

V

NC

V+ = +5.5V, V- = -5.5V,

_ or VNC_ = ±4.5V,

V

NO

V

_ = +4.5V

COM

V+ = +5.5V, V- = -5.5V, V

_ or VNC_ = ±4.5V,

NO

_ = +4.5V

V

COM

V+ = +5.5V, V- = -5.5V, V

= ±4.5V,

COM_

_ or VNC_ = ±4.5V or

V

NO

floating

T

= +25°C 1.2 1.6

A

= T

T

A

T

A

T

A

T

A

T

A

T

A

T

A

T

A

T

A

T

A

T

A

to T

MIN

to T

MAX

= +25°C 0.2 0.3

= T

= +25°C 0.2 0.4

= T

= +25°C -1 0.1 1

= T

= +25°C -1 0.1 1

= T

= +25°C -2 0.2 2

= T

VL = V+ 2.4 V

VL = V+ 0.8 V

VL = V+ -1 0.005 1 µA

V- V+ V

2

0.5

-10 10

-25 25

Ω

nA

MAX4677/MAX4678/MAX4679

2Ω, Quad, SPST, CMOS Analog Switches

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS–Dual Supplies (continued)

(V+ = +5V ±10%, V- = -5V ±10%, VL= +2.7V to V+, GND = 0, VIH= +2.4V, VIL= +0.8V, TA= T

MIN

to T

MAX

, unless otherwise noted.

Typical values are at T

A

= +25°C.) (Note 2)

(

)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

POWER SUPPLY

Positive Supply Voltage V+ +2.7 +5.5 V

Negative Supply Voltage V- -2.7 -5.5 V

Logic Supply Voltage V

Positive Supply Current I+ IN_ = GND or V

Negative Supply Current I-

Logic Supply Current I

Ground Current I

L

GND

L

IN_ = GND or V

L

IN_ = 0 or V+, V+ = 5.5V, V- = -5.5V 1 µA

DYNAMIC

Turn-On Time t

Turn-Off Time t

Break-Before-Make Delay t

ON

OFF

BBM

Charge Injection Q R

Off-Isolation V

ISO

Crosstalk R

-3dB Bandwidth BW R

NC or NO OffCapacitance

COM Off-Capacitance C

On-Capacitance C

C

(N_OFF)

COMOFF

(ON)

V+ = +4.5V, V- = -4.5V,

or VNO_= ±3.3V,

V

NC_

V

= V+, Figure 2

L

V+ = +4.5V, V- = -4.5V,

or VNO_ = ±3.3V,

V

NC_

= V+, Figure 2

V

L

Figure 3, MAX4679 only, R C

= 35pF

L

= 0, C

GEN

R

= 50Ω, C

L

= 50Ω, C

L

= 50Ω, R

S

= 1nF, V

L

= 5pF, f = 1MHz, Figure 5a -65 dB

L

= 5pF, f = 1MHz, Figure 6a -84 dB

L

= 50Ω, Figure 7a 66 MHz

L

f = 1MHz, Figure 8 85 pF

f = 1MHz, Figure 8 350 pF

T

= +25°C 200 350

A

= T

T

A

T

A

T

A

= 300Ω,

L

= 0, Figure 4 85 pC

GEN

to T

MIN

to T

MAX

= +25°C 110 150

= T

2.7 V+ V

0.001 1 µA

-1 µA

1 µA

500

350

5ns

ns

MAX4677/MAX4678/MAX4679

2Ω, Quad, SPST, CMOS Analog Switches

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS–Single Supply

(V+ = +5V ±10%, V- = 0, VL= +2.7V to V+, GND = 0, VIH= +2.4V, VIL= +0.8V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical

values are at T

A

= +25°C.) (Note 2)

)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

ANALOG SWITCH

V

_,

Input Voltage Range

On-Resistance R

On-Resistance Match Between Channels (Note 3)

On-Resistance Flatness (Note 4)

NC_ or NO_ OffLeakage Current (Note 5)

COM_ Off-Leakage Current (Note 5)

COM_ On-Leakage Current (Note 5)

COM

_, VNC_

V

NO

ON

∆R

ON

R

FLAT

N_(OFF)

I

COM_(OFF

I

COM_(ON)

V+ = +4.5V, I

_ or VNC_ = 3.3V

V

NO

V+ = +4.5V, I

_ or VNC_ = 3.3V

V

NO

V+ = +4.5V, I

_ or VNC_ = 3.3V, 1.5V

V

NO

COM

V+ = +5.5V;

_ or VNC_ = 4.5V, 1V;

V

NO

V

_ = 1V, 4.5V

COM

V+ = +5.5V;

_ or VNC_ = 4.5V, 1V;

V

NO

V

_ = 1V, 4.5V

COM

V+ = +5.5V; V

4.5V; V

COM

_ or VNC_ = 1V,

NO

4.5V, or floating

_ = 50mA,

_ = 1V,

T

= +25°C 1.8 2.7

A

T

= T

A

T

A

T

A

T

A

T

A

T

A

T

A

T

A

T

A

T

A

T

A

to T

MIN

= +25°C 0.05 0.15

= T

to T

MIN

= +25°C 0.15 0.25

= T

to T

MIN

= +25°C -1 0.1 1

= T

to T

MIN

= +25°C -1 0.1 1

= T

to T

MIN

= +25°C -2 0.2 2

= T

to T

MIN

LOGIC INPUT

Input Low Voltage V

Input High Voltage V

Input Leakage Current I

IL

IH

IN

VL = V+ 0.8 V

VL = V+ 2.4 V

VL = V+ -1 0.005 1 µA

POWER SUPPLY

Positive Supply Voltage V+ 2.7 6 V

Logic Supply Voltage V

L

MAX

0V+V

-10 10

-25 25

2.7 V+ V

3.5

0.3

0.4

Ω

nA

Positive Supply Current l+ V

Logic Supply Current I

Ground Current I

L

GND

= 0 or V

IN_

V

= 0 or VL, V+ = 5.5V 1 µA

IN_

V

= 0 or V

IN_

= V+ 1 1 µA

L, VL

V+ = 5.5V 1 10 µA

L,

DYNAMIC

Turn-On Time t

Turn-Off Time t

ON

OFF

VL = V+, V+ = +4.5V; VNC_ or V C

= 3.3V, R

NO_

= 35pF, Figure 2

L

= 300Ω,

L

VL = V+, V+ = +4.5V; VNC_ or V C

= 3.3V, R

NO_

= 35pF, Figure 2

L

= 300Ω,

L

T

= +25°C 600 1000

A

T

= T

A

T

A

T

A

to T

MIN

to T

MAX

= +25°C 120 165

= T

1400

ns

400