Burr-Brown MPC508A, MPC509A User Manual

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®

MPC508

MPC509

MPC508A
MPC509A

Single-Ended 8-Channel/Differential 4-Channel

CMOS ANALOG MUL TIPLEXERS

FEA TURES

● ANALOG OVERVOLTAGE PROTECTION:

70Vp-p

● NO CHANNEL INTERACTION DURING

OVERVOLTAGE

● BREAK-BEFORE-MAKE SWITCHING

● ANALOG SIGNAL RANGE:

±15V

● STANDBY POWER: 7.5mW typ

● TRUE SECOND SOURCE

DESCRIPTION

The MPC508A is an 8-channel single-ended analog
multiplexer and the MPC509A is a 4-channel differen­tial multiplexer.

The MPC508A and MPC509A multiplexers have in­put overvoltage protection. Analog input voltages may
exceed either power supply voltage without damaging
the device or disturbing the signal path of other chan­nels. The protection circuitry assures that signal fidel­ity is maintained even under fault conditions that
would destroy other multiplexers. Analog inputs can
withstand 70Vp-p signal levels and standard ESD
tests. Signal sources are protected from short circuits
should multiplexer power loss occur; each input pre­sents a 1kΩ resistance under this condition. Digital
inputs can also sustain continuous faults up to 4V
greater than either supply voltage.

These features make the MPC508A and MPC509A
ideal for use in systems where the analog signals
originate from external equipment or separately pow­ered sources.

The MPC508A and MPC509A are fabricated with
Burr-Brown’s dielectrically isolated CMOS technol­ogy. The multiplexers are available in plastic DIP and
plastic SOIC packages. Temperature range is –40°C to
+85°C.

FUNCTIONAL DIAGRAMS

1kΩ

In 1

1kΩ

In 2

In 8

In 1A

In 4A

In 1B

In 4B

1kΩ

Overvoltage

Clamp and

Isolation

NOTE: (1) Digital
Input Protection.

MPC508A

1kΩ

1kΩ

1kΩ

1kΩ

Overvoltage

Clamp and

Isolation

NOTE: (1) Digital
Input Protection.

MPC509A

Signal

Signal

5V

Ref

5V

Ref

Decoder/

Driver

Level

Shift

(1)

(1)

(1)

A

A

A

2

1

0

Decoder/

Driver

Level

Shift

(1) (1) (1)

A

A

1

0

Out

(1)

EN

Out A

Out B

EN

International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: [phone] • Twx: 910-952-1111

Internet: http://www.burr-brown.com/ • FAXLine: [phone] (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]

©

1988 Burr-Brown Corporation PDS-775E Printed in U.S.A. March, 1998

1

MPC508A, 509A

®

SPECIFICATIONS

ELECTRICAL

Supplies = +15V, –15V; VAH (Logic Level High) = +4.0V, VAL (Logic Level Low) = +0.8V, unless otherwise specified.

MPC508A/509A
PARAMETER TEMP MIN TYP MAX UNITS
ANALOG CHANNEL CHARACTERISTICS

, Analog Signal Range Full –15 +15 V

V

S

R

, On Resistance

ON

I

(OFF), Off Input Leakage Current +25°C 0.5 nA

S

I

(OFF), Off Output Leakage Current +25°C 0.2 nA

D

MPC508A Full 5 nA
MPC509A Full 5 nA

I

(OFF) with Input Overvoltage Applied

D

I

(ON), On Channel Leakage Current +25°C2nA

D

MPC508A Full 10 nA
MPC509A Full 10 nA

I

Differential Off Output Leakage Current

DIFF

(MPC509A Only) Full 10 nA

DIGITAL INPUT CHARACTERISTICS

V

, Input Low Threshold Drive Full 0.8 V

AL

V

, Input High Threshold

AH

I

, Input Leakage Current (High or Low)

A

SWITCHING CHARACTERISTICS

t

, Access Time +25°C 0.5 µs

A

t

, Break-Before-Make Delay +25°C2580 ns

OPEN

t

(EN), Enable Delay (ON) +25°C 200 ns

ON

t

(EN), Enable Delay (OFF) +25°C 250 ns

OFF

Settling Time (0.1%) +25°C 1.2 µs

"OFF Isolation"
C

(OFF), Channel Input Capacitance +25°C5pF

S

C

(OFF), Channel Output Capacitance: MPC508A +25°C25pF

D

MPC509A +25°C12pF

C

, Digital Input Capacitance 25°C5pF

A

C

(OFF), Input to Output Capacitance +25°C 0.1 pF

DS

POWER REQUIREMENTS

P

, Power Dissipation Full 7.5 mW

D

I+, Current Pin 1
I–, Current Pin 27

(1)

+25°C 1.3 1.5 kΩ

Full 1.5 1.8 kΩ

Full 10 nA

(2)

+25°C 4.0 nA

Full µA

(3)

(4)

Full 4.0 V
Full 1.0 µA

Full 0.6 µs

Full 500 ns

Full 500 ns

(0.01%) +25°C 3.5 µs

(5)

(6)

(6)

+25°C5068 dB

Full 0.7 1.5 mA
Full 5 20 µA

NOTES: (1) V
(4) Digital input leakage is primarily due to the clamp diodes. Typical leakage is less than 1nA at 25°C. (5) V
Worst-case isolation occurs on channel 4 due to proximity of the output pins. (6) V

OUT

= ±10V, I

= –100µA. (2) Analog overvoltage = ±33V. (3) To drive from DTL/TTL circuits. 1kΩ pull-up resistors to +5.0V supply are recommended.

OUT

, VA = 0V or 4.0V.

EN

= 0.8V, RL = 1kΩ, CL = 15pF, VS = 7Vrms, f = 100kHz.

EN

The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN
assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject
to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not
authorize or warrant any BURR-BROWN product for use in life support devices and/or systems.

®

MPC508A, 509A

2

PIN CONFIGURATIONS

Top View

A

16

15

14

13

12

11

10

9

1

A

2

Ground

+V

SUPPLY

In 5

In 6

In 7

In 8

–V

En

SUPPLY

In 1

In 2

In 3

In 4

Out

1

A

0

2

3

4

5

6

7

8

MPC508A (Plastic)

TRUTH TABLES

MPC508A

A

2

X X X L None
LLLH1
LLHH2
LHLH3
LHHH4
HLLH5
HLHH6
HHLH7
HHHH8

A

1

A

0

EN CHANNEL

"ON"

Top View

A

16

15

14

13

12

11

10

9

1

Ground

+V

SUPPLY

In 1B

In 2B

In 3B

In 4B

Out B

–V

En

SUPPLY

In 1A

In 2A

In 3A

In 4A

Out A

1

A

0

2

3

4

5

6

7

8

MPC509 A (Plastic)

MPC509A

CHANNEL

A

1

A

0

EN PAIR

X X L None

LLH1

LHH 2

HLH 3

HHH 4

ORDERING INFORMATION

"ON"

ABSOLUTE MAXIMUM RATINGS

(1)

Voltage between supply pins ...............................................................44V

V+ to ground ........................................................................................ 22V

V– to ground ........................................................................................ 25V

Digital input overvoltage V

Analog input overvoltage V

Continuous current, S or D ............................................................... 20mA

, VA:

EN

V

(+) ................................................... +4V

SUPPLY

V

(–).................................................... –4V

SUPPLY

or 20mA, whichever occurs first.

:

S

V

(+) ................................................ +20V

SUPPLY

V

(–).................................................–20V

SUPPLY

Peak current, S or D

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

Power dissipation

(2)

.......................................................................... 1.28W

Operating temperature range............................................ –40°C to +85°C

Storage temperature range ............................................. –65°C to +150°C

NOTE: (1) Absolute maximum ratings are limiting values, applied individu­ally, beyond which the serviceability of the circuit may be impaired. Func­tional operation under any of these conditions is not necessarily implied.
(2) Derate 1.28mW/°C above T

= +70°C.

A

PRODUCT PACKAGE RANGE DESCRIPTION

TEMPERATURE

MPC508AP 16-Pin Plastic DIP –40°C to +85°C 8-Channel

Single-Ended

MPC508AU 16-Pin Plastic SOIC –40°C to +85°C 8-Channel

Single-Ended

MPC509AP 16-Pin Plastic DIP –40°C to +85°C 4-Channel

Differential

MPC509AU 16-Pin Plastic SOIC –40°C to +85°C 4-Channel

Differential

PACKAGE INFORMATION

PRODUCT PACKAGE NUMBER

MPC508/509AP 16-Pin Plastic DIP 180
MPC508/509AU 16-Pin Plastic SOIC 211

NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix C of Burr-Brown IC Data Book.

3

MPC508A, 509A

PACKAGE DRAWING

(1)

®

TYPICAL PERFORMANCE CURVES

Typical at +25°C, unless otherwise noted.

SOURCE RESISTANCE FOR 20V STEP CHANGE

1k

100

10

Settling Time (µs)

1

0.1

0.01 0.1

SETTLING TIME vs

To ±0.01%

To ±0.1%

1

Source Resistance (kΩ)

120

100

80

60

10 100

COMBINED CMR vs

FREQUENCY MPC509A AND INA110

1

CROSSTALK vs SIGNAL FREQUENCY

0.1

Rs = 100kΩ

0.01

0.001

Crosstalk (% of Off Channel Signal)

0.0001
110

Signal Frequency (Hz)

G = 500

G = 100

G = 10

Rs = 10kΩ

R

100

= 1kΩ

s

= 100Ω

R

s

1k 10k

40

20

Common-Mode Rejection (dB)

0

1 10 100 1k 10k

Frequency (Hz)

®

MPC508A, 509A

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