DDF2311

DDF3311

DDF4311

Tw o, Three, and Four Channel

High Speed Drivers

M ultiple independent high-speed drivers w ith

300 mA peak current spikes.

1. Inputs are non-inverting w hen M ode control has a

logic high input.

2. Inputs are inverting w hen M ode control has a logic

low input.

3. To increase sw itching spike currents, add a capacitor

of up to 560 pF betw een the output and TP pins.

4. M ode control and input pins are interchangeable

w ithin any one channel.

5. W hen driving anode-grounded diodes, excessive

pow er dissipation must be avoided. V ee should be

limited to -8V w ith -5V recommended.

6. The DDF2311/3311/4311 do not have a true current

source output. Instead the output is connected to

a 380-ohm resistor in parallel w ith a 560 pF capacitor

and the driven end of this RC combination is

sw itched betw een +4V and V ee so that the negative

output current varies directly w ith V ee.

TP

Output

NC

Non-Inverting Input

Ground

M ode #1

M ode #2

Input #2

NC

Output #2

TP

1

22

11

12

395

M A X

645 M A X

(– 5V to

– 15V )

N/C

N/C

DDF2311

X X X X

TOP V IEW

+5V

500 M IN TY P

M ETA L W ELDED PA CK A GE

Pkg

Bottom

0.050

0.038

125

M A X

010 ± 002

500 M IN

TY P

015

645

SQ

M A X

1

22

11

12

Ground

Input #1

M ode Control #1

Input #2

M ode Control #2

Input #3

M ode Control #3

Input #4

M ode Control #4

+5V

Ground

TP1

Output #1

TP2

Output #2

N/C

TP3

Output #3

TP4

Output #4

N/C

+12V

DDF3311/4311

X X X X

TOP V IEW

M ETA L W ELDED PA CK A GE

150

M A X

M ETA L W ELDED PA CK A GE

Ground

Input #1

M ode Control #1

Input #2

M ode Control #2

Input #3

M ode Control #3

Input #4

M ode Control #4

Input #5

M ode Control #5

Input #6

M ode Control #6

Ground

Output #1

TP1

TP2

Output #2

Output #3

TP3

+5V

TP4

Output #4

Output #5

TP5

TP6

Output #6

-12V

.010 ± .002

Pkg

Bottom

.150 max

0.067 typ

0.015 ± 0.003 typ

0.050 typ

0.500 min

0.075 max

0.075 max

DDF5311/6311

X X X X

0.770 sq. (max)

DDF5311

DDF6311

Five and Six Channel

High Speed Drivers

Independent high speed drivers w ith 300 mA

peak current spikes.

1. Inputs are non-inverting w hen M ode control has a

logic high input.

2. Inputs are inverting w hen M ode control has a logic

low input.

3. To increase sw itching spike currents, add a capacitor

of up to 560 pF betw een the output and TP pins.

4. M ode control and input pins are interchangeable

w ithin any one channel-

5. W hen driving anode-grounded diodes, excessive

pow er dissipation must be avoided. V gg should

be limited to -8V w ith -5V recommended.

6. These drivers do not have a true current source

output. Instead the output is connected to a 380-

ohm resistor in parallel w ith a 560 pF capacitor and

the driven end of this RC combination is sw itched

betw een +4V and V ee so that the negative output

current varies directly w ithV ee.

Continued on next page.