Maxim MAX4524EUB, MAX4524CUB, MAX4524C-D, MAX4525EUB, MAX4525CUB Datasheet

...

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________________General Description

The MAX4524/MAX4525 are low-voltage, single-supply CMOS analog switches configured as a 4-channel multiplexer/demultiplexer (MAX4524) and a doublepole/double-throw (DPDT) switch (MAX4525). Both have an inhibit input to simultaneously open all signal paths.

These devices operate from a single supply of +2V to +12V and are optimized for operation with +3V or +5V supplies. On-resistance is 200Ω with a +5V supply and 500Ω with a +3V supply. Each switch can handle Railto-Rail®analog signals. The off-leakage current is only 2nA at +25°C or 20nA at +85°C.

All digital inputs have 0.8V to 2.4V logic thresholds, ensuring TTL/CMOS-logic compatibility when using a single +5V supply.

________________________Applications

Battery-Operated Equipment Audio and Video Signal Routing Low-Voltage Data-Acquisition Systems Communications Circuits

____________________________Features

♦ Tiny 10-Pin µMAX Package ♦ Single-Supply Operation from +2V to +12V ♦ 200Ω On-Resistance with +5V Supply ♦ 500Ω On-Resistance with +3V Supply ♦ Guaranteed 8Ω On-Resistance Match at +5V ♦ Guaranteed 2nA Max On-Leakage at +5V ♦ TTL/CMOS-Logic Compatible

MAX4524/MAX4525

Low-Voltage, Single-Supply

Multiplexer and Switch

________________________________________________________________

Maxim Integrated Products

1 2 3 4 5

9 8 7 6

V+ COM NO0 ADDAINH

NO1

NO3

NO2

MAX4524

µMAX

TOP VIEW

ADDBGND

INH

1 0 0 0 0

INH1ADD

ON SWITCH

NONE

COMA-NCA,

COMB-NCB

COMA-NOA,

COMB-NOB

ADDB

X 0 0 1 1

X = DON’T CARE

ADDA

X 0 1 0 1

ON SWITCH

NONE COM-NO0 COM-NO1 COM-NO2 COM-NO3

LOGIC

2 3 4 5

9 8 7 6

V+ COMB NOB NCBINH

NCA

COMA

NOA

MAX4525

µMAX

ADDGND

LOGIC

______________________Pin Configurations/Functional Diagrams/Truth Tables

19-1332; Rev 0; 1/98

PART

MAX4524CUB

MAX4524C/D MAX4524EUB -40°C to +85°C

0°C to +70°C

TEMP. RANGE PIN-PACKAGE

10 µMAX Dice* 10 µMAX

_______________Ordering Information

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

MAX4525CUB MAX4525C/D MAX4525EUB -40°C to +85°C

0°C to +70°C

0°C to +70°C 10 µMAX

Dice* 10 µMAX

Contact factory for availability.

MAX4524/MAX4525

Low-Voltage, Single-Supply Multiplexer and Switch

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS—Single +5V Supply

(V+ = +4.5V to +5.5V, GND = 0V, VAH= 2.4V, VAL= 0.8V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at

= +25°C.)

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+..............................................................................-0.3V, +13V

Voltage into any terminal (Note 1)................-0.3V to (V+ + 0.3V)

Continuous Current into any Terminal..............................±20mA

Peak Current, NO, NC or COM_

(pulsed at 1ms,10% duty cycle)....................................±40mA

ESD per Method 3015.7 ..................................................>2000V

Continuous Power Dissipation (T

= +70°C)

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

Operating Temperature Ranges

MAX452_C_ _ ......................................................0°C to +70°C

MAX452_E_ _....................................................-40°C to +85°C

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

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

VA= V

INH

= 2.4V

V+ = 4.5V, I

COM

= 1mA, V

COM

= 3.5V

V+ = 5.5V; I

COM

= 1mA;

COM

= 1.5V, 2.5V, 3.5V

VA= V

INH

= 0.8V

CONDITIONS

µA-1 1I

Input Current Low

90 150

VV- V+

COM

Analog Signal Range

µA-1 1I

Input Current High

Ω

2 10

∆R

COM-NO/NC On-Resistance Match Between Channels (Note 3)

Ω5 12R

FLAT

COM-NO/NC On-Resistance Flatness (Note 4)

-1 1

-2 2

UNITS

MIN TYP MAX

(Note 2)

SYMBOLPARAMETER

Note 1: Voltages exceeding V+ or GND on any signal terminal are clamped by internal diodes. Limit forward-diode current to max-

imum current rating.

V0.8 1.5V

Logic Input Logic Threshold Low

V+ = 5.5V; VNO= 1V, 4.5V; V

COM

= 4.5V, 1V nA

-10 10

NO(OFF),

NC(OFF),

NO/NC Off-Leakage (Note 5)

+25°C

C, E

+25°C

+25°C +25°C

+25°C

C, E

TEMP.

C, E

V+ = 4.5V, I

COM

= 1mA, V

COM

= 3.5V

C, E

Ω

200

COM-NO/NC On-Resistance

C, E

-50 50C, E

V+ = 5.5V; VNO= 1V, 4.5V; V

COM

= 4.5V, 1V

-25 25

COM(OFF)

COM Off-Leakage (Note 5)

C, E

-1 1+25°C

MAX4524

MAX4525

MAX4524

MAX4525

-50 50C, E

V+ = 5.5V; V

COM

= 4.5V, 1V nA

-25 25

COM(ON)

COM On-Leakage (Note 5)

C, E

-1 1+25°C

-2 2+25°C

V1.5 2.4V

Logic Input Logic Threshold High

C, E

ANALOG SWITCH

DIGITAL I/O

MAX4524/MAX4525

Low-Voltage, Single-Supply

Multiplexer and Switch

________________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)

(V+ = +4.5V to +5.5V, GND = 0V, VAH= 2.4V, VAL= 0.8V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at

= +25°C.)

ELECTRICAL CHARACTERISTICS—Single +3V Supply

(V+ = +2.7V to +3.6V, GND = 0V, VAH= 2.0V, VAL= 0.5V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at

= +25°C.)

RL = 600Ω, V

COM

= 2.5Vp-p, 20Hz to 20kHz

RL = 50Ω, f = 1MHz, Figure 5

RL= 50Ω, f = 1MHz, Figure 5

NO_

= 0V, f = 1MHz, Figure 6

C = 1nF, RS= 0Ω, VS= 2.5V, Figure 4

CONDITIONS

%0.2THDTotal Harmonic Distortion

-1 1

V2 12V+Power-Supply Range

NO_

= 3V, RL= 300Ω, CL= 35pF,

Figure 2

200

(ON)

Inhibit Turn-On Time

+25°C

dB-74V

Channel-to-Channel Crosstalk (MAX4525)

dB-75V

ISO

Off-Isolation

pF4C

NO(OFF)

NO/NC Off-Capacitance

90 150

+25°C

pC0.8 5QCharge Injection (Note 6)

UNITS

MIN TYP MAX

(Note 2)

SYMBOLPARAMETER

+25°C

TEMP.

+25°C

C, E

NO_

= 3V, RL= 300Ω, CL= 35pF,

Figure 2

180

(OFF)

Inhibit Turn-Off Time

40 120+25°C

C, E

NO_

= 3V, RL= 300Ω, CL= 35pF, Figure 3 nst

BBM

Break-Before-Make Time

NO_

= 3V/0V, RL= 300Ω, CL= 35pF,

Figure 1

200

TRANS

Address Transition Time

5 20+25°C

90 150+25°C

C, E

V+ = 5.5V, V

ADD

= V

INH

= V+ or 0V µA

-10 10

I+Power-Supply Current

C, E

V+ = 2.7V, I

COM

= 0.1mA, V

COM

= 1.5V

C, E

Ω

500

COM-NO/NC On-Resistance

MAX4524

MAX4525

CONDITIONS

-50 50C, E

V+ = 3.6V; VNO= 1V, 3V; V

COM

= 3V, 1V

-25 25

COM(OFF)

COM Off-Leakage (Note 6)

C, E

-1 1

V+ = 3.6V; VNO= 1V, 3V; V

COM

= 3V, 1V nA

-10 10

NO(OFF),

NC(OFF)

NO/NC Off-Leakage (Note 6)

+25°C

C, E

+25°C

190 400

VV- V+

COM

Analog Signal Range

-1 1

-2 2

UNITS

MIN TYP MAX

(Note 2)

SYMBOLPARAMETER

+25°C

TEMP.

C, E

ANALOG SWITCH

NO_

= 0V, f = 1MHz, Figure 6 pF

COM(OFF)

COM Off-Capacitance

+25°C

NO_

= 0V, f = 1MHz, Figure 6 pF

COM(ON)

COM On-Capacitance

+25°C

SWITCH DYNAMIC CHARACTERISTICS

POWER SUPPLY

MAX4524 MAX4525 MAX4524 MAX4525

MAX4524/MAX4525

Low-Voltage, Single-Supply Multiplexer and Switch

4 _______________________________________________________________________________________

Note 2: The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column. Note 3: ∆R

= R

ON(MAX)

- R

ON(MIN)

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

specified analog signal ranges; i.e., V

= 3V to 0V and 0V to 3V.

Note 5: Leakage parameters are 100% tested at maximum-rated hot operating temperature, and guaranteed by correlation at

= +25°C.

Note 6: Guaranteed by design, not production tested.

ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued)

(V+ = +2.7V to +3.6V, GND = 0V, VAH= 2.0V, VAL= 0.5V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at

= +25°C.)

VA= V

INH

= 2.0V

VA= V

INH

= 0.5V

CONDITIONS

+25°C

V1.0 2.0V

Logic Input Logic Threshold High

C, E

µA-1 1I

Input Current Low

-2 2

µA-1 1I

Input Current High

UNITS

MIN TYP MAX

(Note 2)

SYMBOLPARAMETER

V0.5 1.0V

Logic Input Logic Threshold Low

C, E C, E

TEMP.

C, E

170 300+25°C

NO_

= 1.5V, RL= 300Ω, CL= 35pF,

Figure 2

50 200

400

(ON)

Inhibit Turn-On Time

C, E

+25°C

NO_

= 1.5V, RL= 300Ω, CL= 35pF,

Figure 2

130 300

300

(OFF)

Inhibit Turn-Off Time

C, E

+25°C

NO_

= 1.5V/0V, RL= 300Ω, CL= 35pF,

Figure 1

400

TRANS

Address Transition Time

C, E

Figure 3, V

NO_

= 1.5V, RL= 300Ω, CL= 35pF ns5 40t

BBM

Break-Before-Make Time +25°C

-1 1+25°C

V+ = 3.6V, V

ADD

= V

INH

= V+ or 0V µA

-10 10

I+Power-Supply Current

C, E

C, E -50 50

V+ = 3.6V; V

COM

= 3V, 1V

C, EnA-25 25

COM(ON)

COM On-Leakage (Note 6)

+25°C -1 1

MAX4524

MAX4525

DIGITAL I/O

SWITCH DYNAMIC CHARACTERISTICS (Note 6)

POWER SUPPLY

MAX4524/MAX4525

Low-Voltage, Single-Supply

Multiplexer and Switch

_______________________________________________________________________________________

10,000

0 1 2 3 4 6 7 8 95 10

ON-RESISTANCE vs. V

COM

100

1000

MAX4524/25-01

COM

(V)

(Ω)

V+ = 1.2V

V+ = 2V

V+ = 2.7V

V+ = 3.3V

V+ = 5V

V+ = 7.5V

V+ = 10V

130

0 1.0 3.0

ON-RESISTANCE vs. V

COM

AND TEMPERATURE

MAX4524/25-02

COM

(V)

(Ω)

2.0 4.0

110

5..00.5 2.51.5 3.5 4.5

TA = +85°C

TA = -40°C

TA = 0°C

TA = +70°C

TA = +25°C

0.01

OFF-LEAKAGE vs.

TEMPERATURE

100

MAX4524/25-03

TEMPERATURE (°C)

OFF-LEAKAGE (nA)

0.1

-50 12525-25 0 7550 100

V+ = 5.5V

COM OFF

NO OFF

ON-LEAKAGE vs.

TEMPERATURE

10,000

100,000

MAX4524/25-04

TEMPERATURE (°C)

ON-LEAKAGE (pA)

100

1000

-50 12525-25 0 7550 100

V+ = 5.5V

100

0.01 10 1k 10k100 100k

TOTAL HARMONIC DISTORTION

vs. FREQUENCY

0.1

MAX4524/25-07

FREQUENCY (Hz)

THD (%)

600Ω IN AND OUT

0 1 3

CHARGE INJECTION vs. V

COM

-2.5

1.5

1.0

0.5 0

MAX4524/25-05

COM

(V)

Q (pC)

2 4

-0.5

-1.0

-1.5

-2.0

V+ = +5V V- = 0V

SUPPLY CURRENT vs.

TEMPERATURE

100

MAX4524/25-06

TEMPERATURE (°C)

I+, (nA)

-50 12525-25 0 7550 100

V+ = 5V V

INH

= VA = 0V, 5V

I+

-120

0.1 10 1001 300

FREQUENCY RESPONSE

-90

-100

-110

MAX4524/25-08

FREQUENCY (MHz)

LOSS (dB)

-70

-80

-50

-60

-20

-30

-40

-10

120

-120

-60

-80

-100

PHASE (DEGREES)

-20

-40

20 0

80 60 40

100

ON LOSS

50Ω IN AND OUT

OFF LOSS

ON PHASE

__________________________________________Typical Operating Characteristics

(V+ = +5V, GND = 0V, TA = +25°C, unless otherwise noted.)

MAX4524/MAX4525

Low-Voltage, Single-Supply Multiplexer and Switch

6 _______________________________________________________________________________________

0.5

1.5

1.0

2.0

2.5

3.0

0 32 41 5 6 7 8 10 119 12

LOGIC-LEVEL THRESHOLD vs. V+

MAX4524/25-10

V+ (V)

INH

, V

ADD_

(V)

______________________________________________________________ Pin Description

MAX4524

Analog Switch Normally Open Input 2—1

FUNCTIONMAX4525

NO2

NAME

NOA Analog Switch “A” Normally Open Input1— NO3

COMA Analog Switch “A” Common2—

Analog Switch Normally Open Input 3—2

NO1 NCA Analog Switch “A” Normally Closed Input3—

INH

GND

Ground. Connect to digital ground (analog signals have no ground reference, but are limited to V+ and GND).

Inhibit. Connect to GND for normal operation. Connect to logic-level high to turn all switches off.

Analog Switch Normally Open Input 1—3

ADDB

ADD Logic-Level Address Input (see

Truth Tables

)6—

ADDA

NCB Analog Switch “B” Normally Closed Input7—

Logic-Level Address Input (see

Truth Tables

)—7

Logic-Level Address Input (see

Truth Tables

)—6

NO0 Analog Switch Normally Open Input 0—8 NOB

COM Analog Switch Common—9

Analog Switch “B” Normally Open Input8—

COMB

V+ Positive Analog and Digital Supply-Voltage Input1010

Analog Switch “A” Common9—

Note: NO_, NC_, and COM_ analog signal pins are identical and interchangeable. Any may be considered an input or output;

signals pass equally well in both directions.

-11

-9

-10

-6

-7

-8

-5

-4

-1

-2

-3

0 2 31 4 5 6 7 8 9 101112

V+ CURRENT vs. LOGIC LEVEL

MAX4524/25-09

ADD_

, V

INH

(V)

I+ CURRENT

V+ = +12V

V+ = +5V

Typical Operating Characteristics (continued)

(V+ = +5V, GND = 0V, TA= +25°C, unless otherwise noted.)

__________Applications Information

Power-Supply Considerations

The MAX4524/MAX4525’s construction is typical of most CMOS analog switches. They have two supply pins: V+ and GND. V+ and GND are used to drive the internal CMOS switches and set the limits of the analog voltage on any switch. Reverse ESD-protection diodes are internally connected between each analog signal pin and both V+ and GND. If any analog signal exceeds V+ or GND, one of these diodes will conduct. During normal operation, these (and other) reversebiased ESD diodes leak, forming the only current drawn from V+ or GND.

Virtually all the analog leakage current comes from the ESD diodes. Although the ESD diodes on a given signal pin are identical, and therefore fairly well balanced, they are reverse-biased differently. Each is biased by either V+ or GND and the analog signal. This means that leakage will vary as the signal varies. The difference in the two diode leakages to the V+ and GND pins constitutes the analog signal-path leakage current. All analog leakage current flows between each pin and one of the supply terminals, not to the other switch terminal. This is why both sides of a given switch can show leakage currents of either the same or opposite polarity.

MAX4524/MAX4525

Low-Voltage, Single-Supply

Multiplexer and Switch

_______________________________________________________________________________________ 7

______________________________________________Test Circuits/Timing Diagrams

50%

TRANS

V+

NO0

OUT

ADD

90%

TRANS

50%

TRANS

V+

OUT

ADD

90%

TRANS

ADD

V+

OUT

GND

V+

ADDB

ADDA

INH

NO0

NO1–NO2

NO3

COM

V+

MAX4524

300Ω

50Ω

35pF

V+

OUT

GND

V+

ADD

INH

COM

V+

MAX4525

300Ω

50Ω

35pF

REPEAT TEST FOR EACH SECTION.

Figure 1. Address Transition Time

MAX4524/MAX4525

There is no connection between the analog signal paths and GND. V+ and GND power the internal logic and logic-level translators, and set both the input and output logic limits. The logic-level translators convert the logic levels into switched V+ and GND signals to drive the gates of the analog signals. This drive signal is the only connection between the logic supplies (and signals) and the analog supplies. V+ has an ESD-protection diode to GND.

Low-Voltage Operation

These devices operate from a single supply between +2V and +12V. At room temperature, they actually “work” with a single supply at near or below +1.7V, although as supply voltage decreases, switch on-resistance and switching times become very high.

High-Frequency Performance

In 50Ω systems, signal response is reasonably flat up to 50MHz (see

Typical Operating Characteristics

). Above 20MHz, the on-response has several minor peaks, which are highly layout dependent. The problem is not turning the switch on, but turning it off. The offstate switch acts like a capacitor, and passes higher frequencies with less attenuation. At 10MHz, off-isolation is about -50dB in 50Ω systems, becoming worse (approximately 20dB per decade) as frequency increases. Higher circuit impedances also degrade offisolation. Adjacent channel attenuation is about 3dB above that of a bare IC socket, and is entirely due to capacitive coupling.

Low-Voltage, Single-Supply Multiplexer and Switch

8 _______________________________________________________________________________________

_________________________________Test Circuits/Timing Diagrams (continued)

50%

OFF

V+

NO0

OUT

INH

90%

50%

OFF

V+

NO_

OUT

INH

90%

INH

V+

OUT

GND

V+

ADDB

ADDA

INH

NO0

NO1–NO3

COM

V+

MAX4524

300Ω

50Ω

35pF

V+

OUT

GND

V+

ADD

INH

NO_

NC_

COM_

V+

MAX4525

300Ω

35pF

50Ω

REPEAT TEST FOR EACH SECTION.

Figure 2. Inhibit Switching Times

MAX4524/MAX4525

Low-Voltage, Single-Supply

Multiplexer and Switch

_______________________________________________________________________________________ 9

50%

V+

COM

OUT

ADD

80%

BBM

V+

OUT

ADD

GND

V+

ADDB

ADDA

INH

NO0–N03

COM

V+

MAX4524

300Ω

50Ω

35pF

V+

GND

V+

ADD

INH

NO_, NC_

COM_

V+

MAX4525

300Ω

35pF

50Ω

REPEAT TEST FOR EACH SECTION.

< 20ns

Figure 3. Break-Before-Make Interval

V+

INH

∆ V

OUT

IS THE MEASURED VOLTAGE DUE TO CHARGE-

TRANSFER ERROR Q WHEN THE CHANNEL TURNS OFF.

∆ V

OUT

REPEAT TEST FOR EACH SECTION.

Q = ∆ V

OUT

X C

OUT

V+

OUT

VNO = 0V

INH

GND

V+

ADDB

CHANNEL

SELECT

ADDA

INH

NO_

COM_

MAX4524 MAX4525

50Ω

CL 1000pF

_________________________________Test Circuits/Timing Diagrams (continued)

Figure 4. Charge Injection

MAX4524/MAX4525

Low-Voltage, Single-Supply Multiplexer and Switch

10 ______________________________________________________________________________________

_________________________________Test Circuits/Timing Diagrams (continued)

MEASUREMENTS ARE STANDARDIZED AGAINST SHORT AT SOCKET TERMINALS. OFF-ISOLATION IS MEASURED BETWEEN COM AND "OFF" NO TERMINAL ON EACH SWITCH. ON-LOSS IS MEASURED BETWEEN COM AND "ON" NO TERMINAL ON EACH SWITCH. CROSSTALK (MAX4524) IS MEASURED FROM ONE CHANNEL (A, B) TO OTHER CHANNEL. SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.

V+

OUT

GND

V+

OUT

MEAS.

NETWORK

ANALYZER

50Ω 50Ω

50Ω

OFF ISOLATION = 20log

ON LOSS = 20log

CROSSTALK = 20log

50Ω

REF.

ADDB

OUT

ADDA

CHANNEL

SELECT

INH

NO_

COM_

10nF

MAX4524 MAX4525

Figure 5. Off-Isolation, On-Loss, and Crosstalk

V+

GND

V+

ADDB

ADDA

CHANNEL

SELECT

1MHz

CAPACITANCE

ANALYZER

INH

NO_ NO_

COM_

MAX4524 MAX4525

Figure 6. NO/COM Capacitance

MAX4524/MAX4525

Low-Voltage, Single-Supply

Multiplexer and Switch

______________________________________________________________________________________ 11

__________________________________________________________Chip Topographies

TRANSISTOR COUNT: 219 SUBSTRATE CONNECTED TO V+

MAX4524 MAX4525

N.C.

COM

N.C.

NO0

ADDA

NO2

N.C. V+ N.C.

0.069"

(1.75mm)

0.053"

(1.35mm)

N.C.

GND

N.C.

ADDB

N.C.

NO3

NO1

INH

N.C.

COMB

NOB

NCB

N.C.

N.C. V+ N.C.

0.069"

(1.75mm)

0.053"

(1.35mm)

N.C.

GND

N.C.

ADD

NOA

COMA

NCA

INH

N.C. = No Connection

MAX4524/MAX4525

Low-Voltage, Single-Supply Multiplexer and Switch

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600

________________________________________________________Package Information

10LUMAXB.EPS

Maxim MAX4524EUB, MAX4524CUB, MAX4524C-D, MAX4525EUB, MAX4525CUB Datasheet

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Frequently Asked Questions

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