2024年6月1日发(作者:)

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a

CMOS

4-/8-Channel Analog Multiplexers

FEATURES

DTL/TTL/CMOS Direct Interface

Power Dissipation: 30 ␮W

R

ON

: 170 ⍀

Standard 16-Lead DlPs and 20-Terminal Surface

Mount Packages

GENERAL DESCRIPTION

The AD7501 and AD7503 are monolithic CMOS, 8-channel

analog multiplexers which switch one of eight inputs to a

common output, depending on the state of three binary address

lines and an “enable” input. The AD7503 is identical to the

AD7501 except its “enable” logic is inverted. All digital inputs

are TTL/DTL and CMOS logic compatible.

The AD7502 is a monolithic CMOS dual 4-channel analog

multiplexer. Depending on the state of two binary address

inputs and an “enable,” it switches two output buses to two

of eight inputs.

Truth Tables

AD7501

A

2

A

1

A

0

EN“ON”

00011

00112

01013

01114

10015

10116

11017

11118

XXX0None

AD7503

A

2

A

1

A

0

EN“ON”

00001

00102

01003

01104

10005

10106

11007

11108

XXX1None

REV.B

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties that

may result from its use. No license is granted by implication or otherwise

under any patent or patent rights of Analog Devices. Trademarks and

registered trademarks are the property of their respective companies.

AD7501/AD7502/AD7503

FUNCTIONAL BLOCK DIAGRAM

AD7501/AD7503

AD7502

AD7502

A

l

A

0

EN“ON”

0011&5

0112&6

1013&7

1114&8

XX0None

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

Fax: 781/326-8703© 2003 Analog Devices, Inc. All rights reserved.

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AD7501/AD7502/AD7503–SPECIFICATIONS

(V = +15 V, V = –15 V unless otherwise noted.)

DDSS

@ +25°C

Parameter

ANALOG SWITCH

R

ON

R

ON

vs. V

S

R

ON

vs. Temperature

∆R

ON

Between Switches

R

ON

vs. Temperature Between

Switches

I

S

I

OUT

Version

1

Over Specified

Temperature Range

AD7501,

AD7503AD7502Test Conditions

Switch

ConditionAD7501, AD7503AD7502

All

All

All

All

All

K

S

K

S

ON

ON

ON

ON

ON

OFF

OFF

OFF

OFF

ON

ON

170 Ω typ, 300 Ω max

20% typ

0.5%/°C typ

4% typ

±0.01%/°C

0.2 nA typ, 2 nA max

0.5 nA max

1 nA typ, 10 nA max

5 nA max

12 nA max

5.5 nA max

170 Ω typ, 300 Ω max

20% typ

0.5%/°C typ

4% typ

±0.01%/°C

0.2 nA typ, 2 nA max

0.5 nA max

0.6 nA typ, 5 nA max

3 nA max

7 nA max

3.5 nA max

–10 V ≤ V

S

≤ +10 V

I

S

= 1.0 mA

V

S

= 0 V, I

S

= 1.0 mA

50 nA max

50 nA max

250 nA max

250 nA max

300 nA max

300 nA max

50 nA max

50 nA max

125 nA max

125 nA max

175 nA max

175 nA max

|I

OUT

– I

S

|

DIGITAL CONTROL

V

INL

V

INH

I

INL

or I

INH

C

IN

DYNAMIC CHARACTERISTICS

t

ON

t

OFF

C

S

C

OUT

C

SOUT

C

SS

Between Any Two Switches

POWER SUPPLY

I

DD

I

SS

I

DD

I

SS

K

S

V

S

= –10 V, V

OUT

= +10 V and

V

S

= +10 V, V

OUT

= –10 V

V

S

= –10 V, V

OUT

= +10 V and

V

S

= +10 V, V

OUT

= –10 V

AD7501/02: Enable LOW

AD7503: Enable HIGH

V

S

= 0

All

All

All

All

0.8 V max

2.4 V min

10 nA typ

3 pF typ

10 nA typ

3 pF typ

0.8 V max

2.4 V min

All

All

All

All

All

All

OFF

OFF

OFF

OFF

0.8 µs typ

0.8 µs typ

5 pF typ

30 pF typ

0.5 pF typ

0.5 pF typ

0.8 µs typ

0.8 µs typ

5 pF typ

15 pF typ

0.5 pF typ

0.5 pF typ

V

IN

= 0 to +5.0 V

(See Test Circuit 2)

All

All

All

All

500 µA max

500 µA max

800 µA max

800 µA max

500 µA max

500 µA max

800 µA max

800 µA max

500 µA max

500 µA max

800 µA max

800 µA max

500 µA max

500 µA max

800 µA max

800 µA max

All Digital Inputs Low

All Digital Inputs High

NOTES

1

KN version specified for 0°C to +70°C, KQ version for –25°C to +85°C; and SQ, SE versions for –55°C to +125°C.

Specifications subject to change without notice.

ABSOLUTE MAXIMUM RATINGS

(T

A

= +25°C unless otherwise noted)

V

DD

to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+17 V

V

SS

to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .–17 V

V Between Any Switch Terminals

1

. . . . . . . . . . . . . . . . .25 V

Digital Input Voltage Range . . . . . . . . . . . . . . .V

DD

to GND

Overvoltage at V

OUT

(V

S

) . . . . . . . . . . . . . . . . . . . . . .V

SS

, V

DD

Switch Current (I

S

, Continuous One Channel) . . . . . . .35 mA

Switch Current (I

S

, Surge One Channel)

1 ms Duration, 10% Duty Cycle . . . . . . . . . . . . . . .50 mA

Power Dissipation (Any Package)

Up to +75°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . .450 mW

Derates above +75°C by . . . . . . . . . . . . . . . . . . .6 mW/°C

Operating Temperature

Commercial (KN Version) . . . . . . . . . . . . . . .0°C to +70°C

Industrial (KQ Version) . . . . . . . . . . . . . . .–25°C to +85°C

Extended (SQ, SE Versions) . . . . . . . . . .–55°C to +125°C

Storage Temperature . . . . . . . . . . . . . . . . . .–65°C to +150°C

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

CAUTION

1

Do not apply voltages higher than V

DD

and V

SS

to any other terminal, especially

when V

SS

= V

DD

= 0 V all other pins should be at 0 V.

2

The digital control inputs are diode protected; however, permanent damage may

occur on unconnected units under high energy electrostatic fields. Keep unused

units in conductive foam at all times.

CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000V readily

accumulate on the human body and test equipment and can discharge without detection. Although the

AD7501, AD7502, and AD7503 feature proprietary ESD protection circuitry, permanent damage

may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD

precautions are recommended to avoid performance degradation or loss of functionality.

–2–

REV. B

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AD7501/AD7502/AD7503

ORDERING GUIDEPIN CONFIGURATIONS

Model

l

Temperature

Range

0°C to +70°C

–25°C to +85°C

–55°C to +125°C

–55°C to +125°C

0°C to +70°C

–25°C to +85°C

–55°C to +125°C

–55°C to +125°C

0°C to +70°C

–25°C to +85°C

–55°C to +125°C

–55°C to +125°C

Package

Options

2

N-16

Q-16

Q-16

E-20A

N-16

Q-16

Q-16

E-20A

N-16

Q-16

Q-16

E-20A

PDIP CERDIP

AD7501KN

AD7501KQ

AD7501SQ

AD7501SE

AD7502KN

AD7502KQ

AD7502SQ

AD7502SE

AD7503KN

AD7503KQ

AD7503SQ

AD7503SE

LCC

NOTES

1

To order MIL-STD-883, Class B processed parts, add/883B to part number.

See the Analog Devices’ 1990 Military Databook for military data sheet.

2

E = LCC; N = PDIP; Q = CERDIP.

Typical Performance Characteristics

Figure 1a.R

ON

vs. V

S

At Different Power

Supplies

Figure l Threshold Voltage

(V

INH

, V

INL

) vs. Power Supply

Figure 3.t

ON

, t

OFF

vs. Digital Input

Voltage

Figure 1b.R

ON

vs. V

S

At Different

Temperatures

Figure l Threshold Voltage

(V

INH

, V

INL

) vs. Temperature

Figure Dissipation vs. Logic

Frequency (50% Duty Cycle)

REV. B–3–

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AD7501/AD7502/AD7503

TYPICAL SWITCHING CHARACTERISTICS

OUTLINE DIMENSIONS

TEST CIRCUIT 1

16-Lead Plastic Dual In-Line Package [PDIP]

(N-16)

Dimensions shown in inches and (millimeters)

0.785 (19.94)

0.765 (19.43)

0.745 (18.92)

0.295 (7.49)

0.285 (7.24)

169

0.275 (6.99)

1

8

0.100 (2.54)

0.325 (8.26)

BSC

0.310 (7.87)

0.015 (0.38)

0.300 (7.62)

0.150 (3.81)

MIN

0.135 (3.43)

0.180 (4.57)

0.120 (3.05)

MAX

0.150 (3.81)

0.130 (3.30)

0.015 (0.38)

1 µs/DIV

1 µs/DIV

0.110 (2.79)

0.022 (0.56)

0.060 (1.52)

SEATING

0.010 (0.25)

0.018 (0.46)

0.050 (1.27)

PLANE

0.008 (0.20)

0.014 (0.36)

0.045 (1.14)

COMPLIANT TO JEDEC STANDARDS MO-095AC

CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS

(IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR

REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN

16-Lead Ceramic Dual In-Line Package [CERDIP]

(Q-16)

Dimensions shown in inches and (millimeters)

TEST CIRCUIT 2

0.005

0.098 (2.49)

(0.13)

MAX

0.310 (7.87)

MIN

169

0.220 (5.59)

PIN 1

18

0.060 (1.52)

0.200 (5.08)

0.320 (8.13)

MAX

0.840 (21.34) MAX

0.015 (0.38)

0.290 (7.37)

0.150 (3.81)

MIN

0.015 (0.38)

0.200 (5.08)

15

0.008 (0.20)

0.125 (3.18)

0.100

0.070 (1.78)

SEATING

0

0.023 (0.58)

(2.54)

0.030 (0.76)

PLANE

0.014 (0.36)

BSC

CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETERS DIMENSIONS

(IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR

REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN

1 µs/DIV

1 µs/DIV

20-Terminal Ceramic Leadless Chip Carrier [LCC]

(E-20A)

Dimensions shown in inches and (millimeters)

0.075 (1.91)

0.200 (5.08)

0.100 (2.54)

REF

REF

0.064 (1.63)

0.100 (2.54) REF

0.095 (2.41)

0.075 (1.90)

0.015 (0.38)

19

3

MIN

18

20

4

0.358 (9.09)

0.358

1

0.028 (0.71)

0.342 (8.69)

(9.09)

0.011 (0.28)

BOTTOM

0.022 (0.56)

1 µs/DIV

SQ

MAX

0.007 (0.18)

SQ

R TYP

VIEW

0.050 (1.27)

0.075 (1.91)

14

8

BSC

REF

13

9

0.088 (2.24)

0.055 (1.40)

45 TYP

0.054 (1.37)

0.045 (1.14)

0.150 (3.81)

BSC

CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETERS DIMENSIONS

(IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR

REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN

–4–

REV. B

)

B

(

3

0

/

7

-

0

-

9

2

1

1

0

C