MX-850

®

®

SWITCHING CHAR. (cont.)

MIN.

TYP.

MAX.

UNITS

Settling Time, 5k Load

20V step to ±0.1%

—

30

35

ns

20V step to ±0.01%

—

50

60

ns

20V step to ±0.003%

—

75

85

ns

20V step to ±0.001%

—

100

120

ns

Crosstalk

➀

10kHz (20Vp-p)

—

–105

–100

dB

1MHz (20Vp-p)

—

–94

–92

dB

10MHz (5Vp-p)

—

–76

–71

dB

20MHz (3Vp-p)

—

–64

–62

dB

POWER REQUIREMENTS

Power Supply Range

+15V Supply

+14.5

+15

+15.5

Volts

–15V Supply

–14.5

–15

–15.5

Volts

+5V Supply

+4.75

+5

+5.25

Volts

Power Supply Current,

Quiescent

+15V Supply

—

+3

+4

mA

–15V Supply

—

–10

–12

mA

+5V Supply

—

+3

+3.5

mA

Power Supply Rejection Ratio

80

90

—

dB

Power Supply Dissipation,

Quiescent

+25°C

—

207

270

mW

0 to +70°C

—

—

270

mW

–55 to +125°C

—

—

280

mW

Pd versus Frequency

See Figure 4

PHYSICAL/ENVIRONMENTAL

Operating Temp. Range, Case

MX-850MC

0

—

+70

°C

MX-850MM

–55

—

+125

°C

Storage Temperature Range

–65

—

+150

°C

Package Type

14-pin, metal-sealed, ceramic DIP

Weight

0.1 ounces (2.8 grams)

➀ See Figures 3a and 3b.

ABSOLUTE MAXIMUM RATINGS

PARAMETER

LIMITS

UNITS

+15V Supply, Pin 10

–0.5 to +16.5

Volts

–15V Supply, Pin 14

+0.5 to –16.5

Volts

+5V Supply, Pin 12

–0.5 to +7

Volts

Digital Inputs, Pins 1, 2, 3

–0.5 to +6

Volts

Analog Inputs, Pins 4, 5, 6, 7

–10.5 to +10.5

Volts

Analog Input Current

±20

mA

Lead temperature (10 seconds)

300

°C

Switching Frequency/Duty Cycle

10/50

MHz/%

FUNCTIONAL SPECIFICATIONS

(Apply over the operating temperature range and over the operating power supply

range unless otherwise specified.)

ANALOG INPUTS

MIN.

TYP.

MAX.

UNITS

Analog Signal Range

±10

—

—

Volts

On Resistance, +25°C

—

18

90

Ohms

0 to +70°C

—

—

120

Ohms

–55 to +125°C

—

—

140

Ohms

See Figure 2

Input Leakage Current (Off)

+25°C

—

±0.02

±0.2

nA

0 to +70°C

—

—

±10

nA

–55 to +125°C

—

—

±25

nA

Output Leakage Current (Off)

+25°C

—

±0.02

±0.2

nA

0 to +70°C

—

—

±20

nA

–55 to +125°C

—

—

±40

nA

On Channel Leakage Current

+25°C

—

±0.4

±1

nA

0 to +70°C

—

—

±25

nA

–55 to +125°C

—

—

±35

nA

Channel Input Capacitance

Off

—

4

6

pF

On

—

10

12

pF

Channel Output Capacitance

On

—

8

10

pF

Nonlinearity

—

—

±0.001

%FSR

Large signal bandwidth (–3dB)

80

100

—

MHz

DIGITAL INPUTS

Logic levels

Logic "1"

+2.0

—

—

Volts

Logic "0"

—

—

+0.8

Volts

Logic Loading "1"

—

—

+10

µA

Logic Loading "0"

—

—

–10

µA

SWITCHING CHARACTERISTICS

Access Time

——

20

ns

Break-Before-Make Delay Time

——

10

ns

Enable Delay (On, Off)

—3

10

ns

Settling Time, 10M Load

10V step to ±0.1%

—

25

30

ns

10V step to ±0.01%

—

40

50

ns

10V step to ±0.003%

—

60

70

ns

10V step to ±0.001%

—

80

100

ns

Settling Time, 5k Load

10V step to ±0.1%

—

25

30

ns

10V step to ±0.01%

—

40

50

ns

10V step to ±0.003%

—

60

70

ns

10V step to ±0.001%

—

80

100

ns

Settling Time, 10M Load

20V step to ±0.1%

—

30

35

ns

20V step to ±0.01%

—

50

60

ns

20V step to ±0.003%

—

75

85

ns

20V step to ±0.001%

—

100

120

ns

TECHNICAL NOTES

1. Proper operation of the MX-850 multiplexer is dependent

upon good board layout and connection practices. Bypass

supplies as shown in the connection diagrams. Mount

bypass capacitors directly to the supply pins whenever

possible.

2. All grounds pins (9, 11, 13) should be tied together and

connected to ground as close to the multiplexer as

possible.

3. When power is off, current limit input signals on pins 4, 5, 6,

and 7 to 20mA. Failure to current limit can cause

permanent damage to the device since, when powering up

or down it is possible that two switches might be on at the

same time. Excessive current (greater than 20mA) will flow

from the more positive input to the more negative input,

permanently damaging the device. Applications in which

the power supply for the multiplexer also powers the signal

sources may not require limiting resistors. See Figure 4.