MAXIM MAX4667, MAX4668, MAX4669 User Manual

General Description

The MAX4667/MAX4668/MAX4669 dual analog switches
feature low on-resistance of 2.5Ω max. On-resistance is
matched between switches to 0.5Ω max and is flat (0.5Ω
max) over the specified signal range. Each switch can
handle Rail-to-Rail®analog signals. The off-leakage cur­rent is only 5nA max at +85°C. These analog switches
are ideal in low-distortion applications and are the pre­ferred solution over mechanical relays in automatic test
equipment or applications where current switching is
required. They have low power requirements, use less
board space, and are more reliable than mechanical
relays.

The MAX4667 has two normally closed (NC) switches,
the MAX4668 has two normally open (NO) switches,
and the MAX4669 has one NC and one NO switch that
guarantee break-before-make operation.

These switches operate from a +4.5V to +36V single
supply or from ±4.5V to ±20V dual supplies. All digital
inputs have +0.8V and +2.4V logic thresholds, ensuring
TTL/CMOS-logic compatibility when using ±15V sup­plies or a single +12V supply.

Applications

Reed Relay Replacement PBX, PABX Systems
Test Equipment Audio-Signal Routing
Communication Systems Avionics

Features

♦ Low On-Resistance (2.5Ω max)
♦ Guaranteed R

ON

Match Between Channels

(0.5Ω max)

♦ Guaranteed R

ON

Flatness over Specified Signal

Range (0.5Ω max)

♦ Guaranteed Break-Before-Make (MAX4669)
♦ Rail-to-Rail Signal Handling
♦ Guaranteed ESD Protection >2kV

per Method 3015.7

♦ +4.5V to +36V Single-Supply Operation

±4.5V to ±20V Dual-Supply Operation

♦ TTL/CMOS-Compatible Control Inputs

MAX4667/MAX4668/MAX4669

2.5Ω, Dual, SPST,

CMOS Analog Switches

________________________________________________________________

Maxim Integrated Products

1

19-1505; Rev 0; 7/99

PART

MAX4667CSE

MAX4667CPE 0°C to +70°C

0°C to +70°C

TEMP. RANGE PIN-PACKAGE

16 Narrow SO
16 Plastic DIP

Ordering Information continued at end of data sheet.

______________________Pin Configurations/Functional Diagrams/Truth Tables

Ordering Information

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

MAX4667ESE -40°C to +85°C 16 Narrow SO
MAX4667EPE -40°C to +85°C 16 Plastic DIP

For free samples & the latest literature: http://www.maxim-ic.com, or phone [phone].
For small orders, phone [phone].

TOP VIEW

N.C.

IN1

N.C.

GND

N.C.

IN2

N.C.

1

2

3

V-

4

MAX4667

5

6

7

8

16

NC1

N.C.

15

COM1

14

13

V+

V

12

L

11

COM2

10

N.C.

9

NC2

SO/DIP

MAX4667 MAX4668 MAX4669

LOGIC

SWITCH

ON

0

OFF

1

N.C.

IN1

N.C.

GND

N.C.

IN2

N.C.

1

2

3

V-

4

5

6

7

8

MAX4668

SO/DIP

LOGIC SWITCH

OFF

0

ON

1

16

NO1

15

N.C.

14

COM1

13

V+

12

V

L

11

COM2

10

N.C.

9

NO2

1

N.C.

2

IN1

3

N.C.

V-

4

MAX4669

5

GND

6

N.C.

7

IN2

8

N.C.

SO/DIP

LOGIC SWITCH 1

0
1

OFF

ON

16

NO1

15

N.C.

14

COM1

13

V+

12

V

L

11

COM2

10

N.C.

9

NC1

SWITCH 2

ON
OFF

MAX4667/MAX4668/MAX4669

2.5Ω, Dual, SPST,
CMOS Analog Switches

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS—Dual Supplies

(V+ = +15V, V- = -15V, VL= +5V, V

IN_H

= +2.4V, V

IN_L

= +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 +44V

V- to GND ...............................................................+0.3V to -44V

V+ to V-...................................................................-0.3V to +44V

V

L

to GND ........................................(GND - 0.3V) to (V+ + 0.3V)

All Other Pins to GND (Note 1).............(V- - 0.3V) to (V+ + 0.3V)

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

Peak Current (COM_, NO_, NC_)

(pulsed at 1ms, 10% duty cycle)................................ ±300mA

Continuous Power Dissipation (T

A

= +70°C)

Narrow SO (derate 8.70mW/°C above +70°C) .............696mW

Plastic DIP (derate 10.53mW/°C above +70°C) ...........842mW

Operating Temperature Ranges

MAX466_C_E ......................................................0°C to +70°C

MAX466_E_E ...................................................-40°C to +85 °C

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

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

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

maximum current rating.

LOGIC INPUT

ANALOG SWITCH

V

µA

TA= T

MIN

to T

MAX

TA= T

MIN

to T

MAX

TA= T

MIN

to T

MAX

0.5TA= T

MIN

to T

MAX

0.5

3

TA= T

MIN

to T

MAX

TA= +25°C

V

COM_

= ±10V,

V

NO_

or V

NC_

= ±10V

or floating

V

COM_

= ±10V,

V

NO_

or V

NC_

= +

–

10V

V

COM_

= ±10V,

V

NO_

or V

NC_

= +

–

10V

TA= +25°C

I

COM_

= 10mA,

V

NO_

or V

NC_

= ±10V

I

COM_

= 10mA; V

NO_

or V

NC_

= -5V, 0, 5V

PARAMETER SYMBOL MIN TYP MAX UNITS

COM_ On-Leakage Current
(Note 6)

I

COM_(ON)

-1 0.02 1
nA

COM_ Off-Leakage Current
(Note 6)

I

COM_(OFF)

-0.5 0.01 0.5
nA

Off-Leakage Current
(NO_ or NC_) (Note 6)

I

NO_, INC_

-0.5 0.01 0.5
nA

COM_ to NO_, COM_ to NC_
On-Resistance Flatness
(Notes 3, 5)

R

FLAT(ON)

0.1 0.4

Ω

Input Current with Input Voltage
High

I

IN_H

-0.5 0.001 0.5 µA

Input Current with Input Voltage
Low

I

IN_L

-0.5 0.001 0.5

Logic Input Voltage High V

IN_H

2.4 V

COM_ to NO_, COM_ to NC_
On-Resistance

R

ON

1.6 2.5

Ω

COM_ to NO_, COM_ to NC_
On-Resistance Match Between
Channels (Notes 3, 4)

∆R

ON

0.05 0.4

Ω

Logic Input Voltage Low V

IN_L

0.8

CONDITIONS

TA= +25°C

TA= +25°C

TA= +25°C

I

COM_

= 10mA,

V

NO_

or V

NC_

= ±10V

IN_ = 2.4V, all others = 0.8V

IN_ = 0.8V, all others = 2.4V

Input Voltage Range
(Note 3)

V

COM_,VNO_,

V

NC_

V- V+

TA= +25°C

V

TA= T

MIN

to T

MAX

-20 20

-5 5

-5 5

ANALOG SWITCH

LOGIC INPUT

MAX4667/MAX4668/MAX4669

2.5Ω, Dual, SPST,

CMOS Analog Switches

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)

(V+ = +15V, V- = -15V, VL= +5V, V

IN_H

= +2.4V, V

IN_L

= +0.8V, TA = T

MIN

to T

MAX

, unless otherwise noted. Typical values are at

T

A

= +25°C.) (Note 2)

POWER SUPPLY

Charge Injection Q 450 pCCL = 1.0nF, V

GEN

= 0, R

GEN

= 0, Figure 3

V

COM_

= ±10V,

Figure 2

Turn-Off Time t

OFF

300

ns

TA= T

MIN

to T

MAX

TA= +25°C

V

COM_

= ±10V,

Figure 2

Turn-On Time t

ON

400

ns

TA= T

MIN

to T

MAX

TA= +25°C

µA

µA

µA

µA

55TA= T

MIN

to T

MAX

55

55

TA= T

MIN

to T

MAX

TA= +25°C

V

IN

= 0 or 5V

VIN= 0 or 5V

PARAMETER SYMBOL MIN TYP MAX UNITS

90 175

130 275

Ground Current I

GND

-0.5 0.001 0.5

Break-Before-Make Time Delay
(MAX4669)

530 ns

Off-Isolation (Note 7) V

ISO

-60 dB

Crosstalk (Note 8) V

CT

-66

NC_ or NO_ Capacitance C

OFF

65 pF

Negative Supply Current I-

-0.5 0.001 0.5

Logic Supply Current I

L

-0.5 0.001 0.5

COM_ Off-Capacitance C

COM

65

On-Capacitance C

COM

290 pFf = 1MHz, Figure 7

dB

pF

Power-Supply Range ±4.5 ±20.0 V

CONDITIONS

f = 1MHz, Figure 6

TA= +25°C

VIN= 0 or 5V

V

COM

= 10V

RL= 50Ω, CL = 5pF, f = 1MHz, Figure 4

55TA= T

MIN

to T

MAX

RL= 50Ω, CL = 5pF, f = 1MHz, Figure 5
f = 1MHz, Figure 6

TA= +25°C

Positive Supply Current I+

-0.5 0.001 0.5

TA= +25°C

VIN= 0 or 5V

TA= T

MIN

to T

MAX

POWER SUPPLY

SWITCH DYNAMIC CHARACTERISTICS

MAX4667/MAX4668/MAX4669

2.5Ω, Dual, SPST,
CMOS Analog Switches

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS—Single Supply

(V+ = +12V, V- = 0, VL= +5V, V

IN_H

= +2.4V, V

IN_L

= +0.8V, TA = T

MIN

to T

MAX

, unless otherwise noted. Typical values are at

T

A

= +25°C.) (Note 2)

LOGIC INPUT

ANALOG SWITCH

TA= T

MIN

to T

MAX

TA= T

MIN

to T

MAX

TA= T

MIN

to T

MAX

0.5TA= T

MIN

to T

MAX

0.5

5

TA= T

MIN

to T

MAX

TA= +25°C

V

COM_

= 1V, 10V;

V

NO_

or V

NC_

= 1V,

10V, or floating

V

COM_

= 10V, 1V;

V

NO_

or V

NC_

= 1V,

10V

V

COM_

= 1V, 10V;

V

NO_

or V

NC_

= 1V,

10V

TA= +25°C

I

COM_

= 10mA;

V

NO_

or V

NC_

= 3V,

6V, 0V

I

COM_

= 10mA;

V

NO_

or V

NC_

= 10V

PARAMETER SYMBOL MIN TYP MAX UNITS

COM On-Leakage Current
(Notes 6, 9)

I

COM_(ON)

-1 0.01 1
nA

COM Off-Leakage Current
(Notes 6, 9)

I

COM_(OFF)

-0.5 0.01 0.5
nA

Off-Leakage Current
(NO_ or NC_) (Notes 6, 9)

I

NO_,INC_

-0.5 0.01 0.5
nA

COM_ to NO_, COM_ to NC_
On-Resistance Flatness
(Note 5)

R

FLAT(ON)

0.05 0.5

Ω

Input Current with
Input Voltage High

I

IN_H

-0.5 0.001 0.5 µA

Input Current with
Input Voltage Low

I

IN_L

-0.5 0.001 0.5

Logic Input Voltage High V

IN_H

2.4 V

COM_ to NO_, COM_ to NC_
On-Resistance

R

ON

34

Ω

COM_ to NO_, COM_ to NC_
On-Resistance Match Between
Channels (Notes 3, 4)

∆R

ON

0.05 0.4

Ω

Logic Input Voltage Low V

IN_L

0.8

CONDITIONS

TA= +25°C

TA= +25°C

TA= +25°C

I

COM_

= 10mA;

V

NO_

or V

NC_

= 10V

IN_ = 2.4V, all others = 0.8V

V

IN_ = 0.8V, all others = 2.4V µA

Input Voltage Range
(Note 3)

V

COM_,VNO_,

V

NC_

0V+

TA= +25°C

V

TA= T

MIN

to T

MAX

-20 20

-5 5

-5 5

ANALOG SWITCH

LOGIC INPUT