Maxim MAX309ESE, MAX308EJE, MAX308CSE, MAX308CPE, MAX308MJE Datasheet

19-0271; Rev 0; 7/94

Precision, 8-Channel/Dual 4-Channel,

High-Performance, CMOS Analog Multiplexers

_______________General Description

The MAX308/MAX309 precision, monolithic, CMOS analog multiplexers (muxes) offer low on-resistance (less than 100Ω), which is matched to within 5Ω between channels and remains flat over the specified analog signal range (7Ω max). They also offer low leakage over temperature (NO-off leakage current less than 5nA at +85°C) and fast switching speeds (transition time less than 250ns). The MAX308 is a single-ended 1-of-8 device, and the MAX309 is a differential 2-of-4 device.

The MAX308/MAX309 are fabricated with Maxim’s improved 44V silicon-gate process. Design improvements yield extremely low charge injection (less than 10pC) and guarantee electrostatic discharge protection greater than 2000V.

These muxes operate with a single +4.5V to +30V supply or bipolar ±4.5V to ±20V supplies, while retaining TTL/CMOS-logic input compatibility and fast switching. CMOS inputs provide reduced input loading. These improved parts are plug-in upgrades for the industrystandard DG408, DG409, DG508A, and DG509A.

________________________Applications

Sample-and-Hold Circuits Automatic Test Equipment Heads-Up Displays Guidance and Control Systems Military Radios Communications Systems Battery-Operated Systems PBX, PABX

____________________________Features

♦ Guaranteed On-Resistance Match Between

Channels, <5Ω Max

♦ Low On-Resistance, <100Ω Max ♦ Guaranteed Flat On-Resistance over Specified

Signal Range, 7Ω Max

♦ Guarateed Low Charge Injection, <10pC ♦ NO-Off Leakage Current <5nA at +85°C ♦ COM-Off Leakage Current <20nA at +85°C ♦ ESD Protection >2000V ♦ Plug-In Upgrade for Industry-Standard

DG408/DG409/DG508A/DG509A

♦ Single-Supply Operation (+4.5V to +30V)

Bipolar-Supply Operation (±4.5V to ±20V)

♦ Low Power Consumption, <300µW ♦ Rail-to-Rail Signal Handling ♦ TTL/CMOS-Logic Compatible

______________Ordering Information

PART

MAX308CPE

MAX308CSE MAX308C/D 0°C to +70°C MAX308EPE -40°C to +85°C 16 Plastic DIP MAX308ESE -40°C to +85°C 16 Narrow SO MAX308EJE -40°C to +85°C 16 CERDIP MAX308MJE -55°C to +125°C 16 CERDIP**

Ordering Information continued at end of data sheet.

* Contact factory for dice specifications. ** Contact factory for availability.

TEMP. RANGE PIN-PACKAGE

0°C to +70°C 0°C to +70°C

16 Plastic DIP 16 Narrow SO Dice*

Audio Signal Routing

_____________________Pin Configurations/Functional Diagrams/Truth Tables

MAX308/MAX309

TOP VIEW

A0

1

EN

2

V-

3

NO1

4

NO2

5

NO3

6

NO4

7

COM

8

Continued at end of data sheet.

________________________________________________________________

MAX308

DIP/SO

A1

16

A2

15

GND

14

V+

13

NO5

12

NO6

11

NO7

10

NO8

9

NO1 NO2 NO3 NO4 NO5 NO6 NO7 NO8

MAX308 8-CHANNEL SINGLE-ENDED MULTIPLEXER

V+ V- GND

CMOS DECODE LOGIC

A2 A1 A0 EN

Maxim Integrated Products

Call toll free 1-800-998-8800 for free samples or literature.

COM

1

Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers

ABSOLUTE MAXIMUM RATINGS

Voltage Referenced to V-

V+ ............................................................................-0.3V, 44V

GND.........................................................................-0.3V, 25V

Digital Inputs, NO, COM (Note 1)...........(V- - 2V) to (V+ + 2V) or

30mA, (whichever occurs first)

Continuous Current (any terminal)......................................30mA

Peak Current, NO or COM

(pulsed at 1ms, 10% duty cycle max) ..........................100mA

Continuous Power Dissipation (T

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

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

CERDIP (derate 10.00mW/°C above +70°C)...............800mW

Operating Temperature Ranges

MAX30_C_ _ .......................................................0°C to +70°C

MAX30_E_ _.....................................................-40°C to +85°C

MAX30_MJE ..................................................-55°C to +125°C

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

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

Note 1: Signals on NO, COM, EN, A0, A1, or A2 exceeding V+ or V- are clamped by internal diodes. Limit forward current to

maximum current ratings.

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.

= +70°C)

A

MAX308/MAX309

ELECTRICAL CHARACTERISTICS—Dual Supplies

(V+ = +15V, V- = -15V, GND = 0V, VAH= +2.4V, VAL= +0.8V, TA= T

SYMBOLPARAMETER

CONDITIONS

SWITCH

Analog Signal Range

On-Resistance

On-Resistance Matching Between Channels

On-Resistance Flatness

NO-Off Leakage Current (Note 5)

VNO,

V

COM

R

ON

∆R

ON

R

FLAT

I

NO(OFF)

(Note 3)

INO= -1.0mA, V

= ±10V

COM

INO= -1.0mA, V

= ±10V (Note 4)

COM

INO= -1.0mA, V

= ±5V or 0V

COM

V

= +10V,

COM

VNO= ±10V, VEN= 0V

VNO= ±10V,

COM-Off Leakage Current (Note 5)

COM-On Leakage Current (Note 5)

I

COM(OFF)

I

COM(ON)

= +10V,

V

COM

= 0V

V

EN

VNO= +10V,

= ±10V,

V

COM

= 0V

V

EN

= ±10V,

V

COM

VNO= ±10V, sequence each switch on

MAX308

MAX309

MAX308

MAX309

to T

MIN

TA= +25°C TA= T TA= +25°C TA= T TA= +25°C TA= T

TA= T to T

MAX

TA= +25°C TA= T

to T

MAX

TA= +25°C TA= T

to T

MAX

TA= +25°C TA= T

to T

MAX

TA= +25°C TA= T

to T

MAX

, unless otherwise noted.)

MAX

to T

MIN

MAX

to T

MIN

MAX

to T

MIN

MAX

C, E

MIN

M

C, E

MIN

M

C, E

MIN

M

C, E

MIN

M

C, E

MIN

M

MIN TYP MAX

(Note 2)

60 100

125

1.5 5 8

1.8 7

10

-0.5 0.01 0.5TA= +25°C

-2.5 2.5

-5.0 5.0

-0.75 0.02 0.75

-10 10

-20 20

-0.75 0.02 0.75

-5 5

-10 10

-0.75 0.02 0.75

-10 10

-20 20

-0.75 0.02 0.75

-5 5

-10 10

UNITS

V-15 15

Ω

nA

2 _______________________________________________________________________________________

Precision, 8-Channel/Dual 4-Channel,

High-Performance, CMOS Analog Multiplexers

ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)

(V+ = +15V, V- = -15V, GND = 0V, VAH= +2.4V, VAL= +0.8V, TA= T

SYMBOLPARAMETER

CONDITIONS

INPUT

Input Current with Input Voltage High

Input Current with Input Voltage Low

AH

AL

VA= 2.4V or 15V

VEN= 0V or 2.4V, VA= 0V

SUPPLY

VEN= VA= 0V or 4.5V

I+Positive Supply Current

VEN= 2.4V, V

= 0V or 2.4V

A(ALL)

VEN= 2.4V,

I-Negative Supply Current

V

= 0V or 2.4V

A(ALL)

DYNAMIC

Transistion Time Break-Before-Make Interval Enable Turn-On Time Enable Turn-Off Time Charge Injection

(Note 3)

Off Isolation (Note 6)

t

TRANS

OPEN

t

ON(EN)

OFF(EN)

Q

ISO

Figure 2 Figure 4 Figure 3 Figure 3

CL= 1.0nF, VNO= 0V, RS= 0Ω, Figure 5

VEN= 0V, RL= 1kΩ, f = 100kHz, Figure 6

VEN= 2.4V,

Crosstalk Between Channels V

Logic Input Capacitance C

f = 100kHz,

CT

V RL= 1kΩ, Figure 7

f = 1MHz

IN

GEN

= 1V

P-P

,

f = 1MHz,

NO-Off Capacitance C

COM-Off Capacitance C

COM-On Capacitance C

NO(OFF)

COM(OFF)

COM(ON)

VEN= VNO= 0V, Figure 8

f = 1MHz, VEN= 0.8V V

= 0V,

COM

Figure 8 f = 1MHz,

VEN= 2.4V V

= 0V,

COM

Figure 8

MAX308

MAX309

MAX308

MAX309

to T

MIN

TA= +25°C TA= T TA= +25°C TA= T TA= +25°C TA= T

TA= +25°C TA= T TA= +25°C TA= +25°C TA= T TA= +25°C TA= T

TA= +25°C

, unless otherwise noted.)

MAX

to T

MIN

MAX

to T

MIN

MAX

to T

MIN

MAX

to T

MIN

MAX

to T

MIN

MAX

to T

MIN

MAX

MIN TYP MAX

(Note 2)

16 30

75

0.075 0.5

-1 1

-10 10

85 175

250

85 150

225 150t 300

210

-92 dB

8 pF

3 pF

26

14

37

25

MAX308/MAX309

UNITS

µA-1.0 1.0I

V±4.5 ±20Power-Supply Range

µA

mA

µA

ns

ns10 40t ns

ns

pC

dB-75V

pF

_______________________________________________________________________________________ 3

Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers

ELECTRICAL CHARACTERISTICS—Single Supply

(V+ = +12V, V- = 0V, GND = 0V, VAH= +2.4V, VAL= +0.8V, TA= T

SYMBOLPARAMETER

SWITCH

V

,

NO

Analog Signal Range

On-Resistance

DYNAMIC

Transition Time (Note 3)

MAX308/MAX309

Enable Turn-On Time (Note 3)

Enable Turn-Off Time (Note 3)

Charge Injection (Note 3)

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

this data sheet.

Note 3: Guaranteed by design. Note 4: ∆R

Note 5: Leakage parameters are 100% tested at the maximum rated hot temperature and guaranteed by correlation at +25°C. Note 6: Off isolation = 20log V

= R

ON

voltages. Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured at the extremes of the specified analog signal range.

ON(MAX)

- R

ON(MIN)

V

TRANS

ON(EN)

OFF(EN)

COM/VNO

(Note 3)

COM

INO= -1.0mA

ON

V

= 3V or 10V

COM

V

= 8V,

NO1

V

= 0V,

NO8

VIN= 2.4V, Figure 2

V

= 2.4V,

INH

V

= 0V,

INL

V

= 5V,

NO1

Figure 3 V

= 2.4V,

INH

V

= 0V,

INL

V

= 5V,

NO1

Figure 3 CL= 1.0nF,

VNO= 0V, RS= 0Ω

.

On-resistance match between channels and flatness are guaranteed only with specified

, where V

= output and VNO= input to off switch.

COM

to T

MIN

CONDITIONS

TA= +25°C

, unless otherwise noted.)

MAX

MIN TYP MAX

(Note 2)

UNITS

V012

Ω120 175R

ns115 450t

ns100 600t

ns75 300t

pC210Q

4 _______________________________________________________________________________________

Precision, 8-Channel/Dual 4-Channel,

High-Performance, CMOS Analog Multiplexers

__________________________________________Typical Operating Characteristics

(TA = +25°C, unless otherwise noted.)

ON-RESISTANCE vs. V

160 140 120 100



(Ω)

80

ON

R

60 40 20

0

-20 20-15 15-10 10-5 50

160 140 120 100



(Ω)

80

ON

R

60 40 20

0

(DUAL SUPPLIES)

ON-RESISTANCE vs. V

TEMPERATURE (SINGLE SUPPLY)

V+ = 15V V- = 0V

ON-RESISTANCE vs. V

TEMPERATURE (DUAL SUPPLIES)

120

V+ = +15V

V- = -15V

100

80



(Ω)

60

ON

R

40

20

0

-15 15-10 10-5 50

+125°C

+85°C +25°C

-55°C

V

COM

OFF LEAKAGE vs. TEMPERATURE

1000

V+ = 15V V- = -15V

100

10

1

0.1

0.01

0.001

-55 125

-35 -15 65

COM

V+ = +15V

V- = -15V

V+ = 12V

V- = 0V

I

COM (ON)

25

5

TEMPERATURE (°C)

MAX308/9 TOC-07

±5V

V

(V)

COM

+125°C

+85°C +25°C

-55°C

V

(V)

COM

30

20

10



0

(pC)

j

Q

-10

-20

-30

-15 15-10 10-5 50

COM

MAX308/9 TOC-01

±10V

±15V

±20V

AND

COM



MAX308/9 TOC-04

151050

CHARGE INJECTION vs. V

V

COM

OFF LEAKAGE (nA)

0.0001



(V)

_______________________________________________________________________________________

AND

COM

400 360

MAX308/9 TOC-02

320 280 240



(Ω)

ON

200

R

160 120

80 40

(V)



1000

100

MAX308/9 TOC-05

10

1

0.1

ON LEAKAGE (nA)

I

NO (OFF)

45

85 105

SUPPLY CURRENT vs. TEMPERATURE

100

10

I+, I- (µA)

0.1

0.01

0.001

-55 125

-35 -15 65145

0.01

0.001

0.0001



I+

I-

V+ = +15V V- = -15V

= VA = 0V, 4.5V

V

EN

25

5

TEMPERATURE (°C)

ON-RESISTANCE vs. V

(SINGLE SUPPLY)

5V

10V

V

(V)

COM

ON LEAKAGE vs. TEMPERATURE

V+ = 15V V- = -15V

-55 125

-35 -15 65

85 105



I

COM (ON)

45

25

5

TEMPERATURE (°C)

MAX308/9 TOC-08

15V

COM

15 201050

85 105



20V

MAX308/MAX309

MAX308/9 TOC-03

MAX308/9 TOC-05

5

Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers

______________________________________________________________Pin Description

MAX308 MAX309

1, 15, 16 A0, A2, A1 Address Inputs

—

2 2 EN Enable Input 3 3 V- Negative Supply Voltage Input

4–7 — NO1–NO4 Analog Inputs—bidirectional

— 4–7 NO1A–NO4A Analog Inputs—bidirectional

8 — COM Analog Output—bidirectional

MAX308/MAX309

— 8, 9 COMA, COMB Analog Outputs—bidirectional

9–12 — NO8–NO5 Analog Inputs—bidirectional

— 10–13 NO4B–NO1B Analog Inputs—bidirectional 13 14 V+ Positive Supply Voltage Input 14 15 GND Ground

—

1, 16

NAME FUNCTION

A0, A1 Address Inputs

__________Applications Information

Using supply voltages less than ±15V will reduce the

Supply Voltages Other than 15V

analog signal range. The MAX308/MAX309 switches operate with ±4.5V to ±20V bipolar supplies or with a +4.5V to +30V single supply. Connect V- to GND when operating with a single supply. Both device types can also operate with unbalanced supplies, such as +24V and -5V. The

Typical Operating Characteristics

show typical on-resistance with 20V, 15V, 10V, and 5V supplies. (Switching times increase by a factor of two or more for operation at 5V.)

Overvoltage Protection

Proper power-supply sequencing is recommended for all CMOS devices. Do not exceed the absolute maximum ratings, because stresses beyond the listed ratings may cause permanent damage to the devices. Always sequence V+ on first, then V-, followed by the logic inputs, NO, or COM. If power-supply sequencing is not possible, add two small signal diodes in series with supply pins for overvoltage protection (Figure 1). Adding diodes reduces the analog signal range to 1V below V+ and 1V above V-, but does not affect the devices’ low switch resistance and low leakage characteristics. Device operation is unchanged, and the difference between V+ and V- should not exceed +44V.

Operation with

graphs

V+

NO

V

g

V-

Figure 1. Overvoltage Protection Using External Blocking Diodes

COM

6 _______________________________________________________________________________________

Precision, 8-Channel/Dual 4-Channel,

High-Performance, CMOS Analog Multiplexers

______________________________________________Test Circuits/Timing Diagrams

+15V

V+

+15V

V+

NO1A-NO4A

+15V

V+

+15V

V+

NO1A-NO4A

NO2B-NO4B,

NO2-NO7

COM

V-

-15V

NO1B

NO4B

COMB

V-

-15V

NO2-NO8

V-

-15V

NO1B

COMA

COMB

V-

-15V

NO1

NO8

NO1

COM

300Ω

±10V

+10V

V

OUT

35pF

±10V

+10V

V

OUT

35pF

-5V

V

OUT

1k

35pF

-5V

V

OUT

35pF

LOGIC INPUT

SWITCH OUTPUT

V

OUT

V

LOGIC INPUT

SWITCH OUTPUT

V

OUT

+3V

0V

NO1

0V

V

NO8

t

TRANS

ON

+3V

0V

t

ON(EN)

0V

50%

90%

50%

90%

tr < 20ns tf < 20ns

90%

tr < 20ns tf < 20ns

10%

t

TRANS

t

OFF(EN)

A2 A1 A0

EN

GND

50Ω

A1

A0

MAX309

EN

GND

50Ω

Figure 2. Transition Time

EN

A0 A1

MAX308

A2

50Ω

GND

EN

A0

MAX309

A1

GND

Figure 3. Enable Switching Time

MAX308

MAX308/MAX309

_______________________________________________________________________________________ 7

Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers

_________________________________Test Circuits/Timing Diagrams (continued)

+15V

+2.4V

MAX308/MAX309

50Ω

V+

EN

NO1-NO8

A0

A1

MAX308

A2

GND

COM

V-

-15V

Figure 4. Break-Before-Make Interval

+15V

R

S

V

S

CHANNEL

SELECT

V+

NO EN

A0 A1

MAX308

A2

GND

-15V

300Ω

V-

COM

+5V

V

OUT

35pF

V

OUT

CL = 1000nF

LOGIC INPUT

+3V

LOGIC INPUT

0V

V

OUT

SWITCH OUTPUT

0V

+3V

0V

V

OUT

IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER

∆V

OUT

ERROR Q WHEN THE CHANNEL TURNS OFF. 

= ∆V

Q = C

L

OUT

50%

ONOFF OFF

80%

t

OPEN

tr < 20ns tf < 20ns

∆V

OUT

Figure 5. Charge Injection

8 _______________________________________________________________________________________

Precision, 8-Channel/Dual 4-Channel,

High-Performance, CMOS Analog Multiplexers

_________________________________Test Circuits/Timing Diagrams (continued)

10nF

+15V

10nF

V

R

= 50Ω

S

IN

OFF ISOLATION = 20log

NO1

NO8 A0

A1 A2

GND

V+

MAX308

EN

10nF

COM

-15V

V

OUT

R

= 1kΩ

L

V-

V

OUT

V

IN

R

= 50Ω

S

Figure 6. Off Isolation Figure 7. Crosstalk

+15V

V+

NO1

NO8

COM

V-

EN

Meter

Impedance

Analyzer

or Equivalent

f = 1MHz

CHANNEL

SELECT

A2 A1

MAX308

A0

GND

V

IN

+15V

V+

NO1 NO2

MAX308

NO8 A0

A1 A2

EN

GND

10nF

CROSSTALK = 20log

COM

-15V

V

OUT

= 1kΩ

R

L

V-

V

OUT

V

IN

MAX308/MAX309

-15V

Figure 8. NO/COM Capacitance

_______________________________________________________________________________________ 9

Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers

________Pin Configurations/Functional Diagrams/Truth Tables (continued)

TOP VIEW

A0

1

EN

2

V-

3

NO1A NO2A NO3A

MAX308/MAX309

NO4A

COMA

MAX309

4 5 6 7 8

16 15 14 13 12 11 10

DIP/SO

0 1 1 1 1 1 1 1 1



ON

SWITCH

None

A2 A1 A0 EN

X

X 0 0 1 1 0 0 1 1



X 0 1 0 1 0 1 0 1



MAX308

0 0 0 0 1 1 1 1



LOGIC “0” VAL ≤ 0.8V, LOGIC “1” VAH ≥ 2.4V

V+ V-

NO1A

A1 GND V+ NO1B NO2B NO3B N04B

COMB

9

1 2 3 4 5 6 7 8



NO2A NO3A

NO4A

NO1B NO2B NO3B NO4B

CMOS DECODE LOGIC

MAX309 4-CHANNEL DIFFERENTIAL MULTIPLEXER

LOGIC “0” V

A1 A0

A1 A0 EN

X

0

1

0

1



≤ 0.8V, LOGIC “1” VAH ≥ 2.4V

AL

0 1 1 1 1

MAX309

SWITCH



GND

COMA

COMB

EN

ON

None

1 2 3 4

10 ______________________________________________________________________________________

Precision, 8-Channel/Dual 4-Channel,

High-Performance, CMOS Analog Multiplexers

_Ordering Information (continued)

PART

MAX309CPE

MAX309CSE

* Contact factory for dice specifications. ** Contact factory for availability.

0°C to +70°C 0°C to +70°C 0°C to +70°CMAX309C/D

PIN-PACKAGETEMP. RANGE

16 Plastic DIP 16 Narrow SO Dice* 16 Plastic DIP-40°C to +85°CMAX309EPE 16 Narrow SO-40°C to +85°CMAX309ESE 16 CERDIP-40°C to +85°CMAX309EJE 16 CERDIP**-55°C to +125°CMAX309MJE

MAX308/MAX309

______________________________________________________________________________________ 11

Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers

__________________________________________________________Chip Topographies

MAX308

EN

A0 A1 A2 GND

V-

NO1

MAX308/MAX309

NO2

NO3

NO4

COM NO8 NO7

0.080"

(2.03mm)

N.C. V+

NO5

NO6

0.136

(3.45mm)

N.C.

N.C. = NO INTERNAL CONNECTION

NO1A

NO2A

NO3A

V-

NO4A

MAX309

EN

A0 A1 N.C. GND

COMA COMB NO4B

0.080"

(2.03mm)

N.C. V+

NO1B

NO2B

NO3B

0.136

(3.45mm)

TRANSISTOR COUNT: 122 SUBSTRATE CONNECTED TO V+

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.

12

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TRANSISTOR COUNT: 122 SUBSTRATE CONNECTED TO V+

Maxim MAX309ESE, MAX308EJE, MAX308CSE, MAX308CPE, MAX308MJE Datasheet

Specifications and Main Features

Frequently Asked Questions

User Manual