MAXIM MAX4624, MAX4625 Technical data

General Description

The MAX4624/MAX4625 are low-on-resistance, low­voltage single-pole/double-throw (SPDT) analog switch­es that operate from a single +1.8V to +5.5V supply.
The MAX4624 has break-before-make switching; the
MAX4625 has make-before-break switching. These
devices also have fast switching speeds (tON= 50ns
max, t

OFF

= 50ns max).

When powered from a +5V supply, the MAX4624/
MAX4625 offer 1Ω max on-resistance (RON), with 0.12Ω
max RONmatching and flatness. The digital logic
inputs are TTL compatible when using a single +5V
supply. These switches also feature overcurrent protec­tion to prevent damage from short circuits and exces­sive loads.

The MAX4624/MAX4625 are pin compatible with the
MAX4544 and are available in space-saving standard
6-pin SOT23 packages, as well as the 1.0mm high Thin
SOT package.

Applications

Power Routing

Battery-Operated Equipment

Audio and Video Signal Routing

Low-Voltage Data-Acquisition Systems

Communications Circuits

PCMCIA Cards

Cellular Phones

Modems

Hard Drives

Features

♦ Low R

ON

1Ω max (+5V Supply)
2Ω max (+3V Supply)

♦ 0.12Ω max R

ON

Flatness (+5V Supply)

♦ Overcurrent Protection

♦ +1.8V to +5.5V Single-Supply Operation

♦ Available in SOT23 Packages

♦ Fast Switching: t

ON

= 50ns max, t

OFF

= 50ns max

♦ TTL-Logic Compatible (+5V Supply)

♦ Pin Compatible with MAX4544

♦ Guaranteed Break-Before-Make (MAX4624)

♦ Guaranteed Make-Before-Break (MAX4625)

MAX4624/MAX4625

1Ω, Low-Voltage, Single-Supply

SPDT Analog Switches

________________________________________________________________ Maxim Integrated Products 1

19-1592; Rev 2; 5/01

PART

MAX4624EUT-T

MAX4624EZT-T -40°C to +85°C

-40°C to +85°C

TEMP. RANGE

PIN-

PACKAGE

6 SOT23-6

6 SOT23-6*

Pin Configuration/

Functional Diagram/Truth Table

Ordering Information

TOP

MARK

AADL

AAAE

MAX4625EUT-T

-40°C to +85°C 6 SOT23-6 AADM

MAX4625EZT-T -40°C to +85°C 6 SOT23-6* AAAF

*Thin SOT (1.0mm height) package. Recommended for new

designs.

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

TOP VIEW

MAX4624/MAX4625

IN

1

V+

2

GND

3

SOT23-6

NO

6

COM

5

NC

4

LOGIC NC

ON

0

OFF

1

SWITCHES SHOWN
FOR LOGIC “0” INPUT

NO

OFF

ON

MAX4624/MAX4625

1Ω, Low-Voltage, Single-Supply
SPDT Analog Switches

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS—Single +5V Supply

(V+ = +5V ±10%, GND = 0, V

INH

= 2.4V, V

INL

= 0.8V, TA= T

MIN

to T

MAX

, unless otherwise noted.) (Notes 2, 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.

Voltages Referenced to GND

V+, IN ....................................................................-0.3V to +6V

COM, NC, NO (Note 1)..............................-0.3V to (V+ + 0.3V)

Continuous Current NO, NC to COM..............................±200mA

Peak Current NO, NC to COM

(pulsed at 1ms, 10% duty cycle max) ........................ ±400mA

Continuous Power Dissipation

6-Pin SOT23 (derate 7.1mW/°C above +70°C).............571mW

6-Pin Thin SOT23 (derate 6.25mW/°C above +70°C)...500mW

Operating Temperature Range

MAX462_E_T ....................................................-40°C to +85°C

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

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

Note 1: Signals on NC, NO, and COM exceeding V+ or GND are clamped by internal diodes.

PARAMETER SYMBOL MIN TYP MAX UNITS

Analog Signal Range

V

COM

, VNO,

V

NC

0V+V

0.65 1

On-Resistance R

ON

V+ = 4.5V, VNOor
VNC= 3.5V, I

COM

= 100mA

TA= +25°C

1.2

Ω

0.06 0.12

On-Resistance Match Between
Channels (Note 4)

∆R

ON

V+ = 4.5V, I

COM

= 100mA,

VNOor VNC= 3.5V

TA= +25°C

0.15

Ω

0.08 0.12

On-Resistance Flatness
(Note 5)

R

FLAT(ON)

V+ = 4.5V; I

COM

= 100mA;

VNOor VNC= 0, 1V, 2V

TA= +25°C

0.15

Ω

-2 0.01 2

NO or NC Off-Leakage
Current

I

NO(OFF)

,

I

NC(OFF)

V+ = 5.5V; V

COM

= 1V, 4.5V;

VNOor VNC= 4.5V, 1V

TA= +25°C

-20 20

nA

COM On-Leakage
Current

V+ = 5.5V; V

COM

= 1V, 4.5V;
VNOor VNC= 1V, 4.5V, or
floating

-4 0.3 4

I

COM(ON)

TA= +25°C

-40 40

nA

Overcurrent-Protection
Current Threshold

1.2 A

TA= +25°C 40 50

Turn-On Time t

ON

VNOor VNC= 3V, Figure 2

TA= T

MIN

to T

MAX

60

ns

TA= +25°C 40 50

Turn-Off Time t

OFF

VNOor VNC= 3V, Figure 2

TA= T

MIN

to T

MAX

60

ns

Break-Before-Make Delay
(Note 6)

t

BBM

MAX4624 only, Figure 3a

120

ns

16

Make-Before-Break Delay
(Note 6)

t

MBB

MAX4625 only, Figure 3b

1

ns

TA= T

MIN

to T

MAX

TA= T

MIN

to T

MAX

TA= T

MIN

to T

MAX

TA= T

MIN

to T

MAX

CONDITIONS

1

DYNAMIC

ANALOG SWITCH

TA= T

MIN

to T

MAX

TA= +25°C

TA= +25°C

TA= T

MIN

to T

MAX

TA= +25°C

TA= T

MIN

to T

MAX

MAX4624/MAX4625

1Ω, Low-Voltage, Single-Supply

SPDT Analog Switches

_______________________________________________________________________________________ 3

PARAMETER SYMBOL MIN TYP MAX UNITSCONDITIONS

pC

Off-Isolation (Note 7) OIRR

RL= 50Ω, CL= 5pF, f = 1MHz, TA= +25°C,
Figure 5

-57 dB

Crosstalk (Note 8)

RL= 50Ω, CL= 5pF, f = 1MHz, TA= +25°C,
Figure 5

-57 dB

NC or NO Off-Capacitance C

OFF

f = 1MHz, TA= +25°C, Figure 6 32 pF

COM On-Capacitance C

COM(ON)

f = 1MHz, TA= +25°C, Figure 6 100 pF

Input Voltage Low V

INL

0.8 V

Input Voltage High V

INH

2.4 V

Logic Input Current I

IN

-1 1 µA

Power-Supply Range V+ 1.8 5.5 V

Positive Supply Current I+ V+ = 5.5V, VIN= 0 or V+ 10 µA

ELECTRICAL CHARACTERISTICS—Single +3V Supply

(V+ = +2.7V to +3.6V, GND = 0, V

INH

= 2.0V, V

INL

= 0.6V, TA= T

MIN

to T

MAX

, unless otherwise noted.) (Notes 2, 3)

V0V+

V

COM

, VNO,

V

NC

Analog Signal Range

CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER

ns

65 80

100

VNOor VNC= 1.5V,
Figure 2

t

ON

Turn-On Time

ns

62 80

100

VNOor VNC= 1.5V,
Figure 2

t

OFF

Turn-Off Time

TA= +25°C

TA= T

MIN

to T

MAX

TA= +25°C

TA= T

MIN

to T

MAX

ns140t

BBM

Break-Before-Make Time
Delay (Note 4)

ns18t

MBB

Make-Before-Break Time
Delay (Note 4)

pC40QCharge Injection

ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)

(V+ = +5V ±10%, GND = 0, V

INH

= 2.4V, V

INL

= 0.8V, TA= T

MIN

to T

MAX

, unless otherwise noted.) (Notes 2, 3)

Charge Injection

CL= 1.0nF, V

GEN

= 0, R

GEN

= 0, TA= +25°C,

Figure 4

Q 65

2.5

Ω

1.2 2.0

V+ = 2.7V,
V

NO

or VNC= 1.5V,

I

COM

= 100mA

R

ON

On-Resistance

TA= +25°C

TA= T

MIN

to T

MAX

MAX4624 only, Figure 3a

MAX4625 only, Figure 3b

CL= 1.0nF, Figure 4, V

GEN

= 0,

R

GEN

= 0, TA= +25°C

SUPPLY

LOGIC INPUT

0.25 Ω

V+ = 2.7V; I

COM

= 100mA; VNOor VNC= 0,

0.75V, 1.5V; T

A

= +25°C

R

FLAT(ON)

On-Resistance Flatness
(Note 6)

ANALOG SWITCH

DYNAMIC

MAX4624/MAX4625

1Ω, Low-Voltage, Single-Supply
SPDT Analog Switches

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued)

(V+ = +2.7V to +3.6V, GND = 0, V

INH

= 2.0V, V

INL

= 0.6V, TA= T

MIN

to T

MAX

, unless otherwise noted.) (Notes 2, 3)

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: SOT-packaged parts are 100% tested at +25°C. Limits across the full temperature range are guaranteed by design and

correlation.

Note 4: ∆R

ON

= R

ON(MAX)

- R

ON(MIN)

.

Note 5: Flatness is defined as the difference between the maximum and minimum values of on-resistance as measured over the

specified analog signal range.

Note 6: Guaranteed by design.
Note 7: Off-Isolation = 20log

10[VCOM

/ (VNCor VNO)], V

COM

= output, VNCor VNO= input to off switch.

Note 8: Between the two switches.

V2.0V

INH

Input Voltage High

V0.6V

INL

Input Voltage Low

CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER

µA10V+ = 3.6V, VIN= 0 or V+I+Positive Supply Current

µA-1 1I

IN

Logic Input Current

LOGIC INPUT

SUPPLY

__________________________________________Typical Operating Characteristics

(TA= +25°C, unless otherwise noted.)

0

1

2

3

4

5

6

012345

ON-RESISTANCE vs. COM VOLTAGE

OVER SUPPLY VOLTAGE

MAX4624 toc01

V

COM

(V)

R

ON

(Ω)

V

COM

= 100mA

+2.0V

+2.3V

+2.5V

+3.0V

+5V

+1.8V

1.00

0.75

0.50

0.25

0

021 345

ON-RESISTANCE vs. COM VOLTAGE

OVER TEMPERATURE

MAX4624 toc02

V

COM

(V)

R

ON

(Ω)

TA = +85°C

TA = +105°C

TA = +25°C

TA = -40°C

TA = -55°C

V+ = 5V
I

COM

= 100mA

0

40

t

ON

t

OFF

20

80

60

100

120

24356

TURN-ON/OFF TIMES

vs. SUPPLY VOLTAGE

MAX4624 toc03

V

SUPPLY

(V)

t

ON

/t

OFF

(ns)