MAXIM MAX398, MAX399 Technical data

查询MAX398供应商

19-0299; Rev. 2; 7/96

Precision, 8-Channel/Dual 4-Channel,

Low-Voltage, CMOS Analog Multiplexers

_______________General Description

The MAX398/MAX399 precision, monolithic, CMOS analog multiplexers (muxes) offer low on-resistance (less than 100Ω), which is matched to within 6Ω between channels and remains flat over the specified analog signal range (11Ω max). They also offer low leakage over temperature (NO-off leakage current less than 2.5nA at +85°C) and fast switching speeds (transition time less than 250ns). The MAX398 is an 8-channel device, and the MAX399 is a dual 4-channel device.

The MAX398/MAX399 are fabricated with Maxim’s lowvoltage silicon-gate process. Design improvements yield extremely low charge injection (less than 5pC) and guarantee electrostatic discharge protection greater than 2000V.

These muxes operate with a single +3V to +15V supply or bipolar ±3V to ±8V supplies, while retaining CMOS-logic input compatibility and fast switching. CMOS inputs provide reduced input loading. The MAX398/MAX399 are pin compatible with the industry-standard 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 Audio Signal Routing Low-Voltage Data Acquisition Systems

____________________________Features

♦ Pin Compatible with Industry-Standard

DG408/DG409/DG508A/DG509A

♦ Guaranteed On-Resistance Match

Between Channels (<6Ω )

♦ Low On-Resistance (<100Ω ) ♦ Guaranteed Flat On-Resistance over Signal

Range (<11Ω)

♦ Guaranteed Low Charge Injection (<5pC) ♦ NO-Off Leakage Current <1nA at +85°C ♦ COM-Off Leakage Current <2.5nA at +85°C ♦ Electrostatic Discharge Protection >2000V ♦ Single-Supply Operation (+3V to +15V)

Bipolar-Supply Operation (±3V to ±8V)

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

______________Ordering Information

PART

MAX398CPE

MAX398CSE MAX398C/D 0°C to +70°C MAX398EPE MAX398ESE -40°C to +85°C MAX398EJE MAX398MJE -55°C to +125°C

Ordering Information continued at end of data sheet.

* Contact factory for dice specifications.

** Contact factory for package availability.

TEMP. RANGE PIN-PACKAGE

0°C to +70°C 0°C to +70°C

-40°C to +85°C 16 Plastic DIP

-40°C to +85°C 16 CERDIP**

16 Plastic DIP 16 Narrow SO Dice*

16 Narrow SO

16 CERDIP**

__________________________________________________________Pin Configurations

MAX398/MAX399

TOP VIEW

A0

1

EN

2

V-

3

N01 N02 N03

N04

COM

MAX398

4 5 6 7 8

DIP/SO

________________________________________________________________

A1

16

A2

15

GND

14

V+

13

NO5

12

NO6

11

NO7

10

NO8

9

N01A N02A N03A

N04A

COMA

A0

1

EN

2

V-

3

MAX399

4 5 6 7 8

DIP/SO

Maxim Integrated Products

A1

16

GND

15

V+

14

NO1B

13

NO2B

12

NO3B

11

NO4B

10

COMB

9

1

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800

Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers

ABSOLUTE MAXIMUM RATINGS

Voltage Referenced to GND

V+.......................................................................-0.3V to +17V

V-........................................................................+0.3V to -17V

V+ to V-...............................................................-0.3V to +17V

Voltage into Any Terminal (Note 1).........(V- - 2V) to (V+ + 2V) or

30mA (whichever occurs first)

Current into Any Terminal ...................................................30mA

Peak Current, Any Terminal

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

Continuous Power Dissipation (T

Plastic DIP (derate 7.5mW/°C above +70°C) ..............470mW

Narrow SO (derate 8.7mW/°C above +70°C) ..............696mW

CERDIP (derate 10.0mW/°C above +70°C).................900mW

Operating Temperature Ranges

MAX39_C_ _ .......................................................0°C to +70°C

MAX39_E_ _.....................................................-40°C to +85°C

MAX39_MJE ..................................................-55°C to +125°C

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

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

Note 1: Signals on any terminal 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

MAX398/MAX399

ELECTRICAL CHARACTERISTICS—Dual Supplies

(V+ = +5V ±10%, V- = -5V ±10%, GND = 0V, VAH= V

SYMBOLPARAMETER

SWITCH

Analog Signal Range

Channel On-Resistance

RONMatching Between Channels (Note 4)

On-Resistance Flatness (Note 5)

NO-Off Leakage Current (Note 6)

COM-Off Leakage Current (Note 6)

COM-On Leakage Current (Note 6)

, V

COM

R

ON

∆R

ON

R

FLAT(ON)

I

NO(OFF)

I

COM(OFF)

I

COM(ON)

(Note 3)

NO

INO= 1mA, V

INO= 1mA, V V+ = 5V, V- = -5V

VNO= ±4.5V, V V+ = 5.5V, V- = -5.5V

V

COM

V

NO

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

COM

V

NO

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

V

COM

V

NO

ENH

= ±4.5V,

±

= 4.5V,

= ±4.5V,

±

= 4.5V,

= ±4.5V,

= 4.5V,

= +2.4V, VAL= V

CONDITIONS

= ±3.5V

COM

= ±3.5V,

COM

= ±3V,

COM

±

= 4.5V,

COM

MAX398

MAX399

MAX398

MAX399

= +0.8V, TA= T

ENL

TA= +25°C TA= T

MIN

TA= +25°C TA= T

MIN

TA= +25°C TA= T

MIN

TA= +25°C TA= T

MIN

to T

MAX

TA= +25°C TA= T

MIN

to T

MAX

TA= +25°C TA= T

MIN

to T

MAX

TA= +25°C TA= T

MIN

to T

MAX

TA= +25°C TA= T

MIN

to T

MAX

to T

MAX

C, E M

MIN

to T

, unless otherwise noted.)

MAX

MIN TYP MAX

(Note 2)

60 100

125

6

8 11 14

-0.1 0.1

-1.0 1.0

-10 10

-0.2 0.2

-2.5 2.5

-20 20

-0.1 0.1

-1.5 1.5

-10 10

-0.4 0.4

-5 5

-40 40

-0.2 0.2

-2.5 2.5

-20 20

UNITS

VV- V+V

Ω

nA

2 _______________________________________________________________________________________

Precision, 8-Channel/Dual 4-Channel,

Low-Voltage, CMOS Analog Multiplexers

ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)

(V+ = +5V ±10%, V- = -5V ±10%, GND = 0V, VAH= V

SYMBOLPARAMETER

DIGITAL LOGIC INPUT

Logic High Input Voltage Logic Low Input Voltage TA= T Input Current with

Input Voltage High Input Current with

Input Voltage Low

ENH ENL

ENH

ENL

VA= VEN= 2.4V µA-0.1 0.1IAH, I

SUPPLY

VEN= VA= 0V/V+, V+ = 5.5V, V- = -5.5V

Ground Current

I

VEN= VA= 0V/V+,

GND

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

DYNAMIC

Transition Time Break-Before-Make Interval

Enable Turn-On Time

Enable Turn-Off Time

TRANS

t

ON(EN)

t

OFF(EN)

OPEN

Figure1 Figure 2

Figure 3

Figure 3 CL= 10nF, VS= 0V, RS= 0Ω

VEN= 0V, RL= 1kΩ, f = 100kHz Crosstalk Between Channels Logic Input Capacitance

NO-Off Capacitance COM-Off Capacitance pF

COM-On Capacitance pF

NO(OFF)

C

COM(OFF)

C

COM(ON)

VEN= 2.4V, f = 100kHz,

CT

V

GEN

f = 1MHz

IN

f = 1MHz, VEN= VD= 0V f = 1MHz,

VEN= VD= 0V

f = 1MHz,

VEN= VD= 0V

= 1V

ENH

p-p

= +2.4V, VAL= V

CONDITIONS

, RL= 1kΩ

MAX398 MAX399 MAX398 MAX399

= +0.8V, TA= T

ENL

TA= T

MIN MIN

TA= +25°C

TA= T

MIN

TA= +25°C TA= T

MIN

TA= +25°C TA= +25°C TA= T

MIN

TA= +25°C TA= T

MIN

TA= +25°C TA= +25°C

TA= +25°C

to T to T

to T

MAX MAX

MAX

MIN

to T

, unless otherwise noted.)

MAX

MIN TYP MAX

(Note 2)

-0.1 0.1IAL, I

-1 1

60 150

250

40 150

200

40 20 54 34

MAX398/MAX399

UNITS

V2.4VAH, V V0.8VAL, V

µAVA= VEN= 0.8V

V±3 ±8Power-Supply Range

µA-1 1I+Positive Supply Current

µA-1 1I-Negative Supply Current

µA

ns150t ns040t

ns

ns pC25QCharge Injection (Note 3)

dB-75Off Isolation (Note 7) dB-92V pF8C

pF11C

_______________________________________________________________________________________ 3

Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers

ELECTRICAL CHARACTERISTICS—Single 5V

(V+ = 5V ±10%, V- = 0V, GND = 0V, VAH= V

SYMBOLPARAMETER

SWITCH

Analog Signal Range

On-Resistance

RONMatching Between Channels (Note 4)

On-Resistance Flatness

NO-Off Leakage Current

MAX398/MAX399

(Note 8)

COM-Off Leakage Current (Note 8)

COM-On Leakage Current (Note 8)

, V

COM

R

ON

∆R

ON

R

FLAT

I

NO(OFF)

I

COM(OFF)

I

COM(ON)

NO

DIGITAL LOGIC INPUT

Logic High Input Voltage Logic Low Input Voltage Input Current with

Input Voltage High Input Current with

Input Voltage Low

IAL, I

ENH ENL

ENH

ENL

SUPPLY

I

GND Supply Current

I

GND

= +2.4V, VAL= V

ENH

= +0.8V, TA= T

ENL

CONDITIONS

(Note 3)

INO= 1mA, V

V+ = 4.5V

INO= 1mA, V

V+ = 4.5V

INO= 1mA; V

V+ = 5V

VNO= 4.5V, V

V+ = 5.5V

V

= 4.5V,

COM

V

= 0V,

NO

V+ = 5.5V

V

= 4.5V,

COM

V

= 0V,

NO

V+ = 5.5V

= 3.5V,

COM

= 3.5V,

COM

= 3V, 2V, 1V;

COM

= 0V,

MAX398

MAX399

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

V

= 4.5V,

COM

V

= 4.5V,

NO

V+ = 5.5V

MAX398

MAX399

TA= T to T

MAX

TA= +25°C TA= T

to T

MAX

TA= T

VA= VEN= 2.4V µA-0.1 0.1IAH, I

VA= 0V

VEN= 0.8V

VEN= VA= 0V, V+; V+ = 5.5V; V- = 0V

VEN= V+, 0V; VA= 0V;

V+ = 5.5V; V- = 0V

TA= +25°C TA= T

MIN

MIN MIN

MIN

to T

to T to T

to T

, unless otherwise noted.)

MAX

MIN TYP MAX

MAX

-0.1 0.1

-1.0 1.0

C, E

-10 10

M

-0.2 0.2

-2.5 2.5

C, E

-20 20

M

-0.2 0.2

-1.5 1.5

C, E

-10 10

M

-0.4 0.4 C, E M

-5 5

-40 40

-0.2 0.2

-2.5 2.5

C, E

-20 20

M

MAX MAX

-0.1 0.1

-1.0 1.0

MAX

(Note 2)

150 225

10 18 15 22

280

11 13

0.8VAL, V

UNITS

VV- V+V

Ω

nA

V2.4VAH, V VTA= T

µA

V315Power-Supply Range µA-1.0 1.0I+Positive Supply Current µA-1.0 1.0I-Negative Supply Current

µA

4 _______________________________________________________________________________________

Precision, 8-Channel/Dual 4-Channel,

Low-Voltage, CMOS Analog Multiplexers

ELECTRICAL CHARACTERISTICS—Single 5V (continued)

(V+ = 5V ±10%, V- = 0V, GND = 0V, VAH= V

SYMBOLPARAMETER

DYNAMIC

Transition Time Break-Before-Make Interval

Enable Turn-On Time

Enable Turn-Off Time

TRANS

t

OPEN

t

ON(EN)

t

OFF(EN)

= +2.4V, VAL= V

ENH

ENL

CONDITIONS

VNO= 3V

CL= 10nF, VS= 0V, RS= 0Ω

= +0.8V, TA= T

TA= +25°C TA= +25°C TA= T

MIN

TA= +25°C TA= T

MIN

TA= +25°C

ELECTRICAL CHARACTERISTICS—Single 3V

(V+ = 3V ±10%, V- = 0V, GND = 0V, VAH= V

SYMBOLPARAMETER

SWITCH

Analog Signal Range On-Resistance

ANALOG

R

ON

DYNAMIC

Transition Time (Note 3)

Enable Turn-On Time (Note 3)

Enable Turn-Off Time (Note 3)

TRANS

ON(EN)

OFF(EN)

= +2.4V, VAL= V

ENH

ENL

CONDITIONS

(Note 3) INO= 1mA, V

V+ = 3V

COM

= 1.5V,

Figure 1, VIN= 2.4V, V

= 1.5V, V

N01

Figure 3, V V

= 0V, V

INL

Figure 3, V V

= 0V, V

INL

INH

N01

= 0V

N08

= 2.4V,

= 1.5V

= 2.4V,

= 1.5V

CL= 10nF, VS= 0V, RS= 0Ω

= +0.8V, TA= T

TA= +25°C TA= T

MIN

TA= +25°C

TA= +25°C TA= +25°C

MIN

to T

MIN

to T

, unless otherwise noted.)

MAX

MIN TYP MAX

MAX

to T

, unless otherwise noted.)

MAX

MIN TYP MAX

MAX

(Note 2)

90 200

50 125

(Note 2)

230 375

75 400t

275

200

425

MAX398/MAX399

UNITS

ns90 245t ns10 40

ns

ns pC1.5 5QCharge Injection (Note 3)

UNITS

VV- V+V

Ω

ns230 575t

ns200 500t

ns pC15QCharge 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: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the

Note 6: Leakage parameters are 100% tested at maximum rated hot operating temperature, and guaranteed by correlation at +25°C. Note 7: Worst-case isolation is on channel 4 because of its proximity to the COM pin. Off isolation = 20log V

Note 8: Leakage testing at single supply is guaranteed by correlation testing with dual supplies.

= RONMAX - RONMIN.

ON

specified analog signal ranges, i.e., V

= input to off switch.

V

NO

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

NO

COM/VNO

, V

COM

= output,

_______________________________________________________________________________________ 5

Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers

__________________________________________Typical Operating Characteristics

(TA = +25°C, unless otherwise noted.)

ON-RESISTANCE vs. V

(DUAL SUPPLIES)

110 100

90 80

(Ω)

70

ON

R

60 50

40

MAX398/MAX399

30

-5 -3 1

-1 3 V

ON-RESISTANCE vs. V

AND TEMPERATURE

180 160

140 120

(Ω)

ON

100

R

80 60 40

02

(SINGLE SUPPLY)

V+ = 5V V- = 0V

TA = +125°C

T

153

V

COM 

V± = ±3V

V± = ±5V



COM

TA = +85°C

TA = -55°C

4

5-4 0-2 2 4

(V)

COM

= +25°C

A

(V)

COM



CHARGE INJECTION vs. V

5

V+ = 5V V- = 0V

Qj (pC)

110 100

MAX398/9 TOC1

(Ω)

ON

R

1000

MAX398/9 TOC4

OFF-LEAKAGE (pA)

COM

ON-RESISTANCE vs. V

AND TEMPERATURE

(DUAL SUPPLIES)

V+ = 5V V- = -5V

90

V+ = 5.5V V- = -5.5V

MAX398/9 TOC7

TA = +125°C TA = +85°C

TA = +25°C

TA = -55°C

-1 3 V

COM

OFF-LEAKAGE vs.

TEMPERATURE

TEMPERATURE (°C)

80 70

60 50

40 30

-5 -3 1

100

10

1

0.1

-50 12525-25 0 7550 100

(V)

COM 

10



1

I+, I- (nA)

MAX398/9 TOC2

5-4 0-2 2 4

MAX398/9 TOC5

V+ = 5V V- = -5V V

EN

300 275

250 225

200

(Ω)

175

ON

R

150 125 100

10,000

1000

ON-LEAKAGE (pA)

= VA = 0V, 5V

ON-RESISTANCE vs. V

(SINGLE SUPPLY)

V- = 0V

V+ = 3V

75 50

02

153

V

(V)

COM

ON-LEAKAGE vs.

TEMPERATURE

V+ = 5.5V V- = -5.5V

100

10

1

0.1

-50 12525-25 0 7550 100 TEMPERATURE (°C)

SUPPLY CURRENT vs.

TEMPERATURE

I+

I-

V+ = 5V

MAX398/9 TOC7

COM



MAX398/9 TOC3

4

MAX398/9 TOC6

V+ = 5V V- = -5V

-5

-5 -3 1

-1 305-4 0-2 2 4 V

(V)

COM

0.1

-50 12525-25 0 7550 100 TEMPERATURE (°C)

6 _______________________________________________________________________________________

Precision, 8-Channel/Dual 4-Channel,

Low-Voltage, CMOS Analog Multiplexers

______________________________________________________________Pin Description

MAX398 MAX399

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

—

2 2 EN Enable Input, connect to V+ if not used 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

— 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

MAX398/MAX399

_______________________________________________________________________________________

7

Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers

__________Applications Information

Operation with Supply Voltages

Using supply voltages less than ±5V reduces the analog signal range. The MAX398/MAX399 muxes operate with ±3V to ±8V bipolar supplies or with a +3V to +15V single supply. Connect V- to GND when operating with a single supply. Both device types can also operate with unbalanced supplies, such as +10V and -5V. The

Operating Characteristics

graphs show typical on-resis-

Other than ±5V

Typical

COM

+5V

D1

V+

MAX398 MAX399

*

NO

*

tance with ±3V, ±5V, +3V 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

MAX398/MAX399

all CMOS devices. Do not exceed the absolute maximum ratings, because stresses beyond the listed rat-

Figure 1. Overvoltage Protection Using External Blocking Diodes

V-

D2

* INTERNAL PROTECTION DIODES

-5V

ings can 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 (D1, D2) in series with supply pins for overvoltage protection (Figure 1). Adding diodes reduces the analog signal range to one diode drop below V+ and one diode drop

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 17V. These protection diodes are not recommended when using a single supply.

______________________________________________Test Circuits/Timing Diagrams

+5V

V+

+5V

V+

NO1A-NO4A

NO1

NO2-NO7

NO8

COM

V-

-5V

NO1B

NO4B

COMB

V-

-5V

300Ω

+5V

-5V

+5V

-5V

35pF

LOGIC

V

OUT

V

OUT

INPUT V

EN

SWITCH OUTPUT

V

OUT

+3V

0V

V

NO1

0V

V

NO8

t

TRANS

ON

50%

90%

tR < 20ns tF < 20ns

90%

t

TRANS

50Ω

A2 A1 A0

MAX398

V

EN

GND

A1 A0

MAX399

V

EN

GND

Figure 2. Transition Time

8 _______________________________________________________________________________________

Precision, 8-Channel/Dual 4-Channel,

Low-Voltage, CMOS Analog Multiplexers

_________________________________Test Circuits/Timing Diagrams (continued)

+5V

V

EN

50Ω

V

EN



50Ω

Figure 3. Enable Switching Time

V+

EN

A0 A1

MAX398

A2

GND

EN

A0

MAX399

A1

GND

NO2-NO8

-5V

+5V

V+

NO1A-NO4A

NO2B-NO4B,

-5V

+5V

V-

COMA

COMB

V-

NO1

COM

NO1B

+5V

V

OUT

+5V

35pF

V

OUT

1k

LOGIC INPUT V

EN

SWITCH OUTPUT V

OUT

+3V

t

ON(EN)

50%

0V

90%

tR < 20ns tF < 20ns

10%

t

OFF(EN)

MAX398/MAX399

V

EN

+2.4V

V

A

50Ω

EN

A0

A1

MAX398

A2

GND

Figure 4. Break-Before-Make Interval

_______________________________________________________________________________________ 9

V+

NO1-NO8

COM

V-

-5V

300Ω

+5V

35pF

80%

t

OPEN

tR < 20ns tF < 20ns

+3V

LOGIC INPUT

0V

V

A

+5V

V

OUT

SWITCH OUTPUT V

OUT

0V

50%

Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers

_________________________________Test Circuits/Timing Diagrams (continued)

+5V

R

S

V

EN

V

S

CHANNEL

SELECT

MAX398/MAX399

Figure 5. Charge Injection

+5V

V+

NO EN

MAX398

A0 A1 A2

GND

10nF

COM

V-

-5V

V

OUT

CL = 1000nF

LOGIC INPUT V

EN

V

OUT

+3V

0V

IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER

∆V

OUT

ERROR Q WHEN THE CHANNEL TURNS OFF.  Q = ∆V

OUT x CL

ONOFF OFF

+5V

10nF

∆V

OUT

V+

A0 A1 A2

NO1

NO8

GND

MAX398

EN

10nF

COM

R

= 1kΩ

V-

-5V

OFF ISOLATION = 20log

L

V

IN

R = 1kΩ

V

OUT

V

OUT

V

IN

R

= 50Ω

G

V

IN

= 50Ω

R

S

NO1

NO2

NO8

A0 A1 A2

GND

V+

MAX398

EN

10nF

Figure 6. Off Isolation Figure 7. Crosstalk

+5V

V+

CHANNEL

SELECT

A2

A1

MAX398

A0

GND

NO1

NO8

COM

EN

V-

-5V

1MHz

CAPACITANCE

ANALYZER

f = 1MHz

Figure 8. NO/COM Capacitance

10 ______________________________________________________________________________________

COM

RL = 1kΩ

V-

-5V CROSSTALK = 20log

V

OUT

V

OUT

V

IN

Precision, 8-Channel/Dual 4-Channel,

Low-Voltage, CMOS Analog Multiplexers

__________________________________________Functional Diagrams/Truth Tables

MAX398

NO1 NO2 NO3 NO4

NO5 NO6 NO7 NO8

V+ V- GND

DECODERS / DRIVERS

A0 A1 A2 EN

MAX398 MAX399

A2 A1 A0 EN ON SWITCH

X

0

0 0 0 0 1 1 1 1

0

1

0

1

0

1

0

1

NONE

1

2

1

3

1

4

1

5

1

6

1

7

1

8

COM

MAX399

NO1A NO2A NO3A NO4A

NO1B NO2B NO3B NO4B

V+ V- GND

DECODERS / DRIVERS

A0 A1 EN

A1 A0 EN ON SWITCH

X

0

1

0

1

LOGIC "O" VAL ≤ +0.8 V, LOGIC "1" VAH ≥ +2.4 V

NONE

1

2

1

3

1

4

COMA

COMB

MAX398/MAX399

______________________________________________________________________________________ 11

Precision, 8-Channel/Dual 4-Channel,

Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers

Low-Voltage, CMOS Analog Multiplexers

_Ordering Information (continued)

PART

MAX399CPE

MAX399CSE

MAX399EPE

MAX399EJE

* Contact factory for dice specifications.

** Contact factory for package availability.

__________________________________________________________Chip Topographies

MAX398/MAX399

0°C to +70°C 0°C to +70°C 0°C to +70°CMAX399C/D

-40°C to +85°CMAX399ESE

-55°C to +125°CMAX399MJE

PIN-PACKAGETEMP. RANGE

16 Plastic DIP 16 Narrow SO Dice* 16 Plastic DIP-40°C to +85°C 16 Narrow SO 16 CERDIP**-40°C to +85°C 16 CERDIP**

MAX398

EN

A0 A1 A2 GND

V-

NO1

NO2

NO3

NO4

COM NO8

0.080"

(2.03mm)

TRANSISTOR COUNT: 161 SUBSTRATE CONNECTED TO V+

V+

NO5

NO6

N.C.

NO7

0.102"

(2.59mm)

MAX399

EN

A0 A1 N.C. GND

V-

NO1A

NO2A

NO3A

NO4A

COMA COMB

0.080"

(2.03mm)

TRANSISTOR COUNT: 161 SUBSTRATE CONNECTED TO V+

V+

NO1B

NO2B

NO3B

NO4B

0.102"

(2.59mm)

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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MAXIM MAX398, MAX399 Technical data

Specifications and Main Features

Frequently Asked Questions

User Manual