3

AC Electrical Specifications

PARAMETER

DESCRIPTION

CONDITIONS

MIN

TYP

MAX

UNITS

SR+

+Slew Rate

Data L to H, Output from 0.5V to 4.5V, VSR = 1V

VSR = 3V

80

150

100

240

120

360

V/µs

V/µs

SR-

-Slew Rate

Data H to L, Output from 4.5V to 0.5V, VSR = 1V

VSR = 3V

-80

-150

-100

-240

-120

-360

V/µs

V/µs

SRSYM

Slew Rate

Symmetry

-10

-20

10

20

%

%

Propagation Delay

Data L to H, Output to 0.2V, VSR = 2.5V

Data H to L, Output to 4.8V, VSR = 2.5V

6.5

6.5

9

9

11.5

11.5

ns

ns

Settling Time

VSR = 5V, Data L to H, Output 4.5V to 5V±0.2V

VSR = 5V, Data H to L, Output 0.5V to ±0.2V

30

30

ns

ns

OS

Overshoot

VSR = 1V, Data L to H or H to L

-300

-300

-300

300

300

300

mV

mV

mV

Propagation Delay,

High-Z to Active

50

50

ns

ns

Propagation Delay,

Active to High-Z

50

50

ns

ns

Pin Description Table

PIN #

NAME

DESCRIPTION

1

GND

System ground.

2

E

Enable control input. A logic low allows normal operation; a logic high puts the device into

power down mode. No output levels are defined in powerdown nor does the output behave

as a high impedance.

3

OE

Output Enable input. A logic low sets the output to low-impedance driver mode; a logic high

places the output into a high-impedance state.

5

B-

System power supply. The EL2021 uses this pin as a negative output current monitor connection.

Little current is drawn from this pin, transient or static.

Negative output current monitor input.

7

V-

Negative power supply. Because all negative output drive currents come from this pin

(as much as 60mA transiently), good bypassing is essential.

8

Drive-

Output to external pnp transistor base.

High-current input and output, depending on OE.

10

Drive+

Output to external npn transistor base.

11

Sense Out

Logic output which signals that a high + or - output current is flowing.

12

V+

Positive power supply. Like V-, it should be well bypassed.

13

Positive output current monitor input.

14

B+

System power supply, similar to B-.

15

16

VSR

Slew rate control input. A 1V level on this pin causes the output to slew at 100V/µs, 0.5V

causes a slew rate of 50V/µs, etc.

17

Data

when OE = E = L.

18

N/C

Not Connected.

SR+

()-SR-

()

SR+

()+SR-

()

--------------------------------------

VSR

1V

=

VSR

2V

=

EL2021